Category Archives: Saltwater Fishing

Everything saltwater fishing

Tarpon Tagging Program Yields Results

Tracking

Bonefish and Tarpon Trust Tarpon Tagging Program Yields Results
It’s hoped the 5-year acoustic tagging program will help answer many questions about tarpon movements around Florida’s coasts.

The Tarpon Acoustic Tagging Project is a collaborative, five-year program designed to broaden our understanding of tarpon movement and habitat uses. The results will help shape future conservation measures, including the protection of critical habitats and improvements to fishing regulations.  The project is generously sponsored by Maverick Boat Group.

Tarpon Acoustic Tagging is addressing the following questions:

Is the tarpon population large and robust or small and vulnerable? If anglers in a particular location are fishing for the same fish every year, then the tarpon population is probably smaller than we think, and issues like shark predation will become a bigger concern. If fish move among regions every year, and anglers are fishing for different fish each year, the tarpon population is probably relatively large.

Do tarpon gather in the same areas for spawning each year or move among areas? On average, ocean currents will carry the larvae from a spawning site to juvenile habitats in a specific geographic region. If it’s the same adults at the spawning site every year, then local adult losses will cause local declines in juveniles. If tarpon move among spawning sites, then the population will be more resilient.

How do changes in freshwater flows into coastal waters influence tarpon movements? Do the problems with Lake Okeechobee and Everglades restoration impact tarpon? Are the water issues in Apalachicola causing changes in tarpon movements?

What are the movement patterns and habitat use of mid-size tarpon (20-50 pounds)? How will these tarpon be impacted by coastal water quality issues? This size class, which is the future of the fishery, is very vulnerable to changes in coastal habitats and water quality.Until the Tarpon Acoustic Tagging Project began, there was little information available to answer these questions. Satellite tagging provided spatial and temporal data that was limited to tarpon weighing 80 pounds and larger. After a few months, most satellite tags detached from the fish, making it difficult to study their movements over the important multi-year time frame. Acoustic telemetry has helped to combat these limitations.Why Acoustic Tagging?Acoustic tags provide the ability to track tarpon for five years. They are also small enough that they are being used on tarpon as small as 5 and as large as 200 pounds!

Acoustic telemetry has helped to broaden the scope of tarpon research. When deployed, a tag is surgically implanted in the fish’s abdomen before safe release. The tagged fish swims within range of an underwater receiver, which detects and stores the tag’s unique code. BTT and collaborators have approximately 100 receivers deployed, but we are also able to take advantage of the network of receivers being used by collaborators studying everything from redfish to sawfish. This vast network exceeds 4,000 receivers deployed from Chesapeake Bay to the Gulf of Mexico. As scientists detect tagged fish on their receiver networks they share data with other scientists, effectively expanding the study area.

All years are concurrently playing with the date displayed in the upper left corner. The movements shown here are represented “as the crow flies”, thus the movement tracks may cross land.

How You Can Help

Sponsor a Tarpon: Sponsor an acoustic tag for $3,000. You can name your tarpon and will receive a certificate with its name and initial capture info (general location and measurements).  Sponsors will receive access to a password protected site where they can see periodic updates of their tarpon’s movements.

Sponsor a Receiver: Sponsor and name an acoustic receiver (listening station) for $3,000.  Sponsors will receive periodic reports summarizing the tarpon detections it has recorded.

Help us tag tarpon: Prior to every tagging trip, our team of scientists will notify sponsors  about when and where they will be working, along with contact information. If you are fishing in that area on tagging dates, all you need to do is call us when you catch a tarpon. We’ll come to your boat, transfer the tarpon to our sling, and take implant a transmitter. Remember to always keep the tarpon in the water!

Contact Us Today! For more information and to sponsor a tag or receiver, please contact Mark Rehbein, Director of Development at 703-350-9195 or [email protected]

Lionfish

Lionfish

Impacts of Invasive Lionfish
Lionfish are native to coral reefs in the tropical waters of the South Pacific and Indian Oceans. But you don’t have to travel halfway around the world to see them. This is an invasive species that threatens the well-being of coral reefs and other marine ecosystems, including the commercially and recreationally important fishes that depend on them.

NOAA and its partners are working hard to develop ways to prevent further spread and control existing populations.

Lionfish have become the poster child for invasive species issues in the western north Atlantic region. On par with zebra mussels, snakeheads, and even Asian carp in notoriety as invaders, lionfish populations continue to expand, threatening the well-being of coral reefs and other marine ecosystems, including the commercially and recreationally important fishes that depend on them. NOAA and its partners are working hard to develop ways to prevent further spread and control existing populations.

History The common name “lionfish” refers to two closely related and nearly indistinguishable species that are invasive in U.S. waters. Lionfish, which are native to the Indo-Pacific, were first detected along Florida coasts in the mid-1980s, but their populations have swelled dramatically in the past 15 years. Lionfish are popular with aquarists, so it is plausible that repeated escapes into the wild via aquarium releases are the cause for the invasion. Lionfish now inhabit reefs, wrecks, and other habitat types in the warm marine waters of the greater Atlantic.

Lionfish continue to expand at astonishing speeds and are harming native coral reef ecosystems in the Atlantic, Gulf of Mexico, and Caribbean. Biologists suspect that lionfish populations have not yet peaked in the Gulf of Mexico, which means that their demand for native prey will continue to increase. Recent research has also revealed that lionfish can tolerate brackish coastal zones, so mangrove and estuarine habitats may also be at risk of invasion.

Impacts to Native Fish and Coral reefs Adult lionfish are primarily fish-eaters and have very few predators outside of their home range. Researchers have discovered that a single lionfish residing on a coral reef can reduce recruitment of native reef fishes by 79 percent. Because lionfish feed on prey normally consumed by snappers, groupers, and other commercially important native species, their presence could negatively affect the well-being of valuable commercial and recreational fisheries.

As lionfish populations grow, they put additional stress on coral reefs already struggling from the effects of climate change, pollution, disease, overfishing, sedimentation, and other stressors that have led to the listing of seven coral species in the lionfish-infested area. For example, lionfish eat herbivores and herbivores eat algae from coral reefs. Without herbivores, algal growth goes unchecked, which can be detrimental to the health of coral reefs.

What’s Next? NOAA has created an Invasive Lionfish Web Portal—a clearinghouse for all things related to lionfish outreach and education, research, monitoring, and management. Interested parties will no longer need to browse through multiple web pages to find accurate information; it will be available in a centralized location.NOAA researcher and lionfish expert Dr. James Morris recently hosted the 7th annual lionfish symposium at the 2014 meeting of the Gulf and Caribbean Fisheries Institute in Barbados. More than 35 presentations were given on lionfish research around the region.

This meeting built upon the results of a 2013 GCFI lionfish workshop focused on harvesting invasive lionfish: An invasive lionfish food fish market is practical, feasible, and should be promoted.Alternative invasive lionfish end-uses, such as the curio and aquarium trade, are also viable markets.

Regarding consumption and the risk for ciguatera poisoning, invasive lionfish should not be treated differently than other tropical fish species and a general caution statement should be displayed within all establishments that serve fish and on all fish products.Local control is effective at minimizing invasive lionfish impacts at local scales and should be encouraged where possible.

Though no confirmed cases of ciguatera poisoning from eating lionfish have occurred, fears persist. A Caribbean-wide assessment of lionfish ciguatera levels is nearly complete and a report will be publicly available in the coming months. If lionfish are proven to be safe, and if cost-effective harvest and distribution mechanisms are developed, small-scale fishermen may be able to capitalize while simultaneously helping to control the invasion.

Cooperation and communication among local, state, federal, and international partners is crucial for proper management of lionfish and other widespread invasive species. Accordingly, a National Invasive Lionfish Prevention and Management Plan was developed by members of the Aquatic Nuisance Species Task Force—an intergovernmental organization co-chaired by NOAA. The plan will be publicly available in spring 2015 pending final review and approval. NOAA’s National Marine Sanctuaries Program is working to finalize their own lionfish plan that will guide the management of this invasive species in the affected sanctuaries in the Gulf and southeastern United States.

Together, these plans will guide the management of invasive lionfish and ensure that all are working toward common objectives.More information on NOAA’s lionfish research programs can be found online.An animated map of lionfish spread is available on the U.S. Geological Survey’s Nonindigenous Aquatic Species web page.

Black Sea Bass


Grace of the Food Chain
By Zach Harvey
from The Fishing Wire

“What a @#$%! racket,” I mumble to no one in particular, as I take in the massive southward sky, a dome of high cloud centered directly overhead, everything bending down and in toward the horizon and into the drink. To the north, the Rhode Island mainland floats on a shimmering band of bent light. I, the “nature boy,” confirm that everything’s set, as my boss rounds up for a quick pass over a little cluster of boulders, cobble and mussel beds off the south side of Block Island.

I feel the 35-foot Down Easter slide out of gear and, on force of habit, pluck my rod out of the holder, tuck it under my left arm and swing the rig up for a final inspection. We glide for a second while Cappy checks his screens. Then we rumble into reverse for a moment to halt forward progress and wait for the prop wash to settle out.

We’ve just baited and dumped the last of eight large old-school fish pots in a half-mile square. Now we wait. And by wait, I mean rod-and-reel a bunch of huge sea bass.

In the two decades I’ve spent working on the water, the days I’ve felt downright smug about my lot in life have been variations on this morning’s undertaking: a windless, flat-ass calm, early-fall hard-bottom recon trip, working on big black sea bass, 3 pounds to more than 6. The world record black sea bass scaled a terrifying 9 pounds and change.

I don’t believe in the hierarchy of “worthy” sportfishing quarry, where a handful of species — tarpon, bonefish, marlin, tuna, striped bass and sails, among others — are ascribed incredible strength, cunning, wits, beauty and prowess, while other species get scoffed at. It’s an underdog thing. It’s also a different ethic about our waters, the fish, the food chain, where the noblest quarry is what everyone eats with gusto, because in my world, the familial (blood or elective) feasting completes a rite that began predawn when we hung the last spring line on its designated piling.

When you lay same-day sea bass on a grocery-store seafood consumer, the gratitude radiates tenfold. Fish this good can’t be bought for all the Franklins in a Manhattanite billfold, but it’s traded for tomatoes or corn, or gifted to neighbors who understand the weight of the gesture.

Few things fill a soul with sacred human purpose like a cooler full of well-iced, bled, rinsed and packed black sea bass — or its yield in well-cut fillets, translucent, almost iridescent, on a plate beside the stove.Our first drift, I hang up inside a minute — one hazard of fishing adrift around the broken ground that concentrates sea biscuits. Cappy rips his rig in, liberates a pair of wallet-sized specimens, each sporting a 4/0 octopus hook that looks, proportionally, the way a gaff head might in the maw of a 3-pounder.

Not what we’re after.I fetch a replacement rig from a bunch dangling off the plumbed bait barrel up against the wheelhouse. I slip on a sinker and bait up with squid and an oozing black glob of sea clam belly (the former for staying power, the latter for scent power) on each hook.

“This feels a little better,” my deckmate announces, just as my sinker contacts the ground floor with a clank.

I note a respectable bend in his heavyish setup. I’m about to speak when I feel a wild thump and discover the fish has more or less hung itself with no help from me. I’m just squaring up to the rail, starting to pry the fish out of the seabed when a strange weightless plucking sensation shoots through the line to my brain. I snap the rod skyward. The tip barely moves.

For a second I worry I’m hung up again, but as I lean back on the rod, I note my new rock is bucking an awful lot.

“Got two,” I announce.

Two good sea bass on one rig have a distinct feel, a weird, disjointed tugging and a consistent, substantial weight. Fish under 5 pounds fight comically hard in a way that makes it almost impossible not to smile, especially when your rig is full-up and you can lean back on the rod, balance yourself against the strain.

I will concede that bottom fishing isn’t a fishery of endless technical complexity, by which I mean: “simple,” not to be mistaken for “easy.

”The fact that we’re in the thick of a sea bass boom doesn’t change one hard truth of the hunt for thick sea bass: the guys who have the real estate, the hangs, the wrecks, the rock piles, the little nothing bump off in the geographic center of mudflat nowhere, the mussel bed in 41 feet surrounded by an acre of 41 feet, the lat-lons corresponding to a bed, two Cadillacs long, one Prius wide, of small, still chewable mussels. Or the little nugget you steamed over on the way to or from tuna grounds, mined 7 years of logbook to find three almost identically worded entries — lat-lons, followed by “load of stuff hard on bottom.”

They’re the ones with the good stuff.Subsequent recon unearthed a flurry of honest-to-Christ 4-pound sea bass and a lone cod pushing 20 pounds. You can now recite the coordinates along with your wedding anniversary, wife’s birthday, your bike lock combination and your first telephone number.

Here’s the deal: You can prattle on for weeks about hooks, knots or teaser colors, but if you don’t have some sea bass ground, debating tackle minutia is like rearranging the Titanic’s deck chairs.

Anyone can catch black sea bass if it’s a purely quantitative exercise. But without the possibility of cracking 5 pounds in the process, I’d rather make a couple swipes at the lunch cooler, stuff my face with cold cuts, wipe my hands on opposing sleeves and stare into the briny middle distance, trying to remember, say, the joke that goes with the punchline, “the potato goes in front.

”Now, after a minute taking back line I’d deployed to hold bottom, the fight is vertical. I’m genuinely surprised how hard the mystery fish are dogging me. I’m half expecting to see a big cod emerge from the murky depths.

“Good one, huh,” says my boss as he dumps his reel in freespool. “Let me know if you need a net on that.

”The suspense is killing me. It could be almost anything down there. A few more cranks, and I see the barrel swivel on my rig flash into view, but still no sign of whatever’s on there. Almost no other species in our waters can out-camouflage a sea bass from above.

A 3-pound sea biscuit has the top hook solidly in its jaw hinge — nowhere near enough to explain this fight.

“I’m up,” I announce, “Got that net?”

The bottom fish is a good one. My partner deftly bags that one first, gathers up the smaller one on the way up. The larger looks obscene. I’d guess 7 pounds if I didn’t know better. So 5, probably.I glance toward my railmate just as his rod goes down hard. A split-second later mine does, too. No head-shakes. No bounce. Obscenities all around. It takes a moment to figure out what’s happening.

The line’s clearly hung up, but there’s some limited play: I can gain about four cranks before it stops dead. We scan in all directions for evidence of lobster gear, the buoys on up-and-down lines, but see none. Probably an unmarked gillnet or a string with too-short buoy lines sucking under in the tide — standard fare for Block Island’s south side. We break off, then gather around the helm to investigate.

Sure enough, it’s a gillnet. We find another string a couple of tics east of where we’d started that first drift, then some lobster gear just west of the mystery net. Trying to anchor hemmed in like that seldom ends well.

Two hours later, a couple dozen solid sea bass and a handful of big porgies on ice, the skipper wants to go check the pots. When sea bass are thick, a mesh bait bag of sea clams seldom holds on beyond a couple of hours. Rod-and-reeling seldom, if ever, keeps pace with good fish pots.

At least we got a few, and more importantly, I got the biggest one in the box, which means Cappy’s buying the Guinness.

This mission was more than a decade ago, well before the abrupt spike in black sea bass populations across the Northeast. With the change came not only more and bigger BSB on the old ground, but swarms in all sorts of places no one could recall having seen them before. The places that had always collected a few suddenly had knots of them. No doubt, the transformative effect of aptly-named Hurricane Sandy had a hand in the distribution shakeup. A storm that changed the entire lay of Block Island’s south side had even more dramatic effects below the low-tide mark. Some known wrecks silted over and vanished completely, while whole constellations of hitherto unknown structures got cleared off and began to take on tenants within a season or two.

More important, climbing water temps — which have sparked a marked shift northward and eastward in the migratory patterns of other stocks, such as summer flounder — have also likely triggered our recent BSB invasion.

In the seasons since, the rod-and-reelers have embraced the advantages of the new arrangement.

Unfortunately, the population explosion has been tempered by one huge regulatory caveat: Lack of the statutorily mandated science to guide decisions, and a call for management accountability, have subtracted from already miniscule catch targets. As stocks grow exponentially and spread out, more anglers catch more sea bass, and landings spike, triggering quota-overage paybacks in each successive year. We call it the “death spiral”: booming resource destroys fishery.

And so a fish in exponential population growth, a fish hard-wired to run other same-tier predators off ground, a fish aggressive enough, fishermen argue, to threaten other rebuilding stocks where they overlap, will flourish indefinitely. Sadly, this fish, which could easily shoulder some pressure from overburdened fisheries such as striped bass, fluke, tautog or cod, remains trapped in bureaucratic limbo.

Our new sea bass bonanza, then, will be fished as black sea bass always have: as a welcome bycatch bonus for guys targeting other species. Then, for a short period according to state regulations, when the possession limit jumps just enough to support an hour or two of dedicated sea bass highgrading, we’ll attempt to put up fillets for winter.

I’m less worried about the big kill than with maintaining the spirit of celebration around seasonal bounty that imposes some predictable order on my charmed life of perpetual adolescence beside the sea.The black sea bass could be the most strikingly beautiful of any creature that lives coastal — long, graceful fins, striking white and electric-blue highlights, big fleshy humps on the foreheads of the joes.

According to my increasingly eccentric take on the fishing life, where the avoidance of macho B.S. lives in my bones, black sea bass swim on both sides of the jagged line between the fire in my belly and the water in my soul: proof that I still live by the grace of the food chain, and evidence, by their very design, of larger gears turning, a greater clockwork presiding over the fleeting eons.

This article originally appeared in the Summer 2019 issue of Anglers Journal magazine.

Mako Shark Tracking


Mako Shark Tracking Reveals “Impressive” Memory and Navigation
from The Fishing Wire

These top predators travel far across the Pacific, returning to the same areas in the Southern California Bight each year. The largest effort ever to tag and track shortfin mako sharks off the West Coast has found that they can travel nearly 12,000 miles in a year. The sharks range far offshore, but regularly return to productive waters off Southern California, an important feeding and nursery area for the species.

The findings demonstrate “an impressive show of memory and navigation.” The sharks maneuver through thousands of miles of the Pacific but return to where they have found food in years past, said Heidi Dewar, a research fisheries biologist at NOAA Fisheries’ Southwest Fisheries Science Center in La Jolla, California.Researchers tagged 105 mako sharks over 12 years—from 2002 to 2014. The tags record the sharks’ movements, as well as the environments the sharks pass through.

Researchers have long recognized that ocean waters from Santa Barbara south to San Diego, known as the Southern California Bight, are an important habitat for mako sharks. Prior to this study, however, they knew little about what the sharks do and where they went beyond those waters.The researchers are from NOAA Fisheries, Stanford University, Tagging of Pacific Predators, and the Center for Scientific Research and Higher Education in Baja California. They reported their results in the journal Animal Biotelemetry.

“We did not know what their overall range was. Were there patterns that they followed?” asked Nicole Nasby-Lucas, a NOAA Fisheries research scientist at the Southwest Fisheries Science Center and lead author of the new research. “It turns out they have their own unique movement patterns.

” Sharks tracked over multiple years returned to the same offshore neighborhoods year after year.

Long-Range Travelers The tagging data overall revealed that the sharks travel widely along the West Coast. They venture as far north as Washington, as far south as Baja California, and westward across the Pacific as far as Hawaii. The sharks tagged off California remained on the eastern side of the Pacific east of Hawaii. This indicates that they do not mix much with mako sharks in other parts of the Pacific.

A roughly seven-foot female mako shark followed similar courses into the Pacific and back to the California Coast over three consecutive years.

Although there are examples of mako sharks crossing the ocean, it is probably the exception rather than the rule, said Dewar, a coauthor of the new research.The finding provides insight into population dynamics of mako sharks across the Pacific. It also allows scientists to identify which fisheries the tagged mako sharks might encounter. Muscular mako sharks are a popular sport fishing target. They are also caught in U.S. longline and drift gillnet fisheries and are common in the international trade in shark fins.

Mako sharks are overfished in the Atlantic Ocean, but not in the Pacific.The researchers used two types of tags to track the sharks. One type, called pop-up tags, collect data and eventually pop off the animal and float to the surface, where they transmit their data via satellite. The second type transmits data to satellites each time the shark surfaces, determining the animal’s location by measuring tiny shifts in the frequency of the radio transmission.

Remembering Southern California Mako sharks are among the fastest swimmers in the ocean, hitting top speeds of more than 40 miles per hour. The larger tagged sharks traveled an average of about 20 miles a day and a maximum of about 90 miles per day. They travel long distances in part because they must swim to move water through their gills so they can breathe, Dewar said.

Large numbers of juvenile sharks caught in the Southern California Bight indicate that it is a nursery area for the species. Tagged mako sharks returned there annually, most typically in summer when the waters are most productive. The tracks of the tagged sharks may look at first like random zig-zags across the ocean, Dewar said. They actually illustrate the sharks searching for food and mates based on what they remember from previous years.

“If you have some memory of where food should be, it makes sense to go back there,” Dewar said. “The more we look at the data, the more we find that there is a pattern behind their movements.”The tagging results also provide a wealth of data that scientists can continue to plumb for details of the sharks’ biology and behavior. About 90 percent of the time the sharks remained in the top 160 feet of ocean, for example, occasionally diving as deep as 2,300 feet. Although the sharks traveled widely, they mainly stayed in areas with sea surface temperatures between about 60 and 70 degrees Fahrenheit.

“We can continue to ask new questions of the data to understand these unique movement patterns,” Nasby-Lucas said. “There’s a lot more to learn.”
Juvenile shortfin mako shark swimming in the waters off California. Photo credit: Walter Heim.

West Coast Rockfish Boom


West Coast Rockfish Boom with Warm Water “Blob”
Young groundfish, including great numbers of rockfish as well as other marine creatures thrived under unprecedented ocean conditions, according to new research.

The high temperatures that came with the marine heatwave known as the Blob led to unprecedented mixing of local and subtropical species. There were, often with new and unpredictable outcomes. Out of that mix came one unexpected winner: West Coast rockfish. These bottom-dwelling species, which that had previously collapsed in the face of overfishing during the 2000s, thrived under the new conditions.

Scientists from Oregon State University and NOAA Fisheries’ Northwest Fisheries Science Center recount the boom in young rockfish in a new research paper in the journal Fisheries. It examines the effects of the Blob as documented by NOAA Fisheries offshore surveys. Scientists have been conducting the surveys for more than 20 years. The Blob years brought some of the most dramatic changes in marine life off the West Coast they’ve ever seen. Unexpected interactions may have also altered the abundance of some species, from plankton that support the food web to fish that depend on them, the researchers wrote.

In the waning months of the Blob in 2016, juvenile rockfish increased over a large area from California to Alaska. Since juvenile rockfish are very difficult to distinguish from one another, scientists could not tell which species benefited. They could not tell what specifically drove the boom in their numbers and or whether they will support fisheries in future years.

They suggested that the surge in rockfish may have been part of an unusual cascade of effects resulting in large part from a shift in the dominant jellyfish off the West Coast. The typically abundant sea nettle declined in number while the less common water jellyfish multiplied to become the most abundant jellyfish in their catches. That may have reduced predation by sea nettles on juvenile rockfish, as well as competition between the species.A catch of mostly water jellies and only a few fish from a 2015 research survey off the West Coast.

“When organisms from different regions suddenly come together, they can interact in unexpected ways,” said Brian Beckman, a research fish biologist at the Northwest Fisheries Science Center and co-author of the new study. “The question is whether this is a lasting change, or one that will shift back toward something we’ve seen before.

”The scientists also described the sudden and extremely high abundance of gelatinous pyrosomes. They, which had never been previously observed in the Northern California Current off the West Coast. Pyrosomes have such voracious appetites that their increase may explain low concentrations of chlorophyll documented off the West Coast in 2017, the scientists suggested.

Pyrosomes found off the Oregon Coast range in size from a few inches to more than two feet long. (Photo by Hilarie Sorensen/University of Oregon)“If this organism remains abundant in subsequent years, it could produce lasting effects upon the ecosystem by outcompeting other filter feeders, which in turn might reduce the food supply to organisms higher in the food web,” they wrote.

The effects of the Blob may be evident in the species mix off the West Coast for many years to come, they added. The scientists emphasized that continued ocean surveys should track those changes over time. This will to help us understand the interaction among species and inform ecosystem-based fisheries management.Read more like this at NOAA Fisheries
Shortraker rockfish.

Winter Feeding Area for Great White Sharks


OCEARCH Defines Winter Feeding Area for Great White Sharks
Tracking data from white sharks equipped with OCEARCH satellite tags reveals that the Atlantic continental shelf waters off North Carolina, South Carolina, Georgia, and the east coast of Florida are a winter hot spot for large white sharks. As seen on the OCEARCH Tracker, the heavy concentration of our adult and near-adult white sharks in this region suggests it’s an important winter habitat, which OCEARCH and collaborating scientists are now referring to as the Northwest Atlantic Shared Foraging Area (NASFA).

This is in concordance with fisheries data that showed this area to be a wintering ground for white sharks, as previously published by OCEARCH collaborator Dr. Tobey Curtis and his colleagues.The OCEARCH Tracker shows at least eight white sharks have been detected in the NASFA in the past week, including adult white sharks Hilton and Katharine. The eight sharks are a good indication there are plenty more white sharks in the area with them.

The waters off Charleston, South Carolina and Cape Canaveral, Florida have seen the highest concentration of detections. The sharks were tagged as part of an ongoing study started in 2012 by OCEARCH to uncover the mysteries of white sharks’ life history in the Northwest Atlantic.

Since the beginning of the study, OCEARCH has consistently observed that nearly all tagged, large white sharks in the Northwest Atlantic visit the NASFA at some point during their migrations, with most visiting in the winter. OCEARCH has tagged white sharks as far south as Florida and as far north as Nova Scotia, Canada, and all of the larger tagged sharks have spent some time in the NASFA.

“The body of colder water trapped between the Gulf Stream and the coast is a key feature of this region,” says Assistant Professor of Marine Science at Jacksonville University and OCEARCH collaborating scientist Dr. Bryan Franks. “This ‘wedge’ of cold water extends from the Outer Banks in North Carolina down to Cape Canaveral in Florida. This feature results in a range of water temperatures in a relatively short horizontal distance from the coast out to the Gulf Stream. In addition, there is the potential for abundant prey in the migrating populations along the coastlines and in the dynamic mixing zone on the Stream edge.

”The tendency for white sharks to migrate to the NASFA bears some similarities to white shark behavior observed in the Pacific Ocean off the west coast of the United States. In the Northeast Pacific, different shark populations migrate from the Farallon Islands and Guadalupe Island to a Shared Foraging Area (SOFA), also popularly referred to as the White Shark Cafe, between the Baja Peninsula and Hawaii.

OCEARCH tracked this white shark behavior in 2007-2009 and conducted a 30-day expedition to the SOFA in 2009. Studies by other scientists since then have tracked similar shark behavior.

OCEARCH tracking data in the Atlantic suggest there could be more than one population, or subpopulation, of white sharks inhabiting the Northwest Atlantic. These populations are differentiated by where the sharks aggregate in the late summer and fall, which is suspected to be mating season for the species, although that remains to be confirmed. Cape Cod, Massachusetts is one such summer/fall aggregation site and OCEARCH data indicates there is at least one more summer/fall aggregation site in Canada. Regardless of which summer/fall aggregation site a shark uses, however, it appears nearly all of the adult and near-adult sharks visit the NASFA during the colder winter months.

OCEARCH is planning an expedition to the NASFA in February and has two other expeditions planned to try and tag more sharks off Massachusetts and Nova Scotia later in 2019. These expeditions aim to increase the sample size of tagged white sharks to get a clearer picture of white shark movements in the Northwest Atlantic and test scientific hypotheses about white shark movement and migration.

“This is the beauty of OCEARCH’s North Atlantic White Shark Study,” said Dr. Bob Hueter, OCEARCH Chief Science Advisor. “The sharks lead us from one step to the next, so that we can steer our ship to where we’re needed to fill in the gaps in our knowledge of this incredible predator. Each expedition builds on the previous ones to reveal the life of the white shark from birth to death in the North Atlantic. This is the best kind of science, and it’s exciting to be sharing these discoveries with our peers and the public.

”Follow the sharks through their migration cycles by accessing the near-real-time OCEARCH Tracker; https://www.ocearch.org/white-sharks-gather-in-northwest-atlantic-shared-foraging-area-off-southeast-coast-of-the-us/

Shark Facts


12 Shark Facts That May Surprise You
From NOAA Fisheries
from The Fishing Wire

1. Sharks do not have bones. Sharks use their gills to filter oxygen from the water. They are a special type of fish known “elasmobranch”, which translates into fish made of catilaginous tissues—the clear gristly stuff that your ears and nose tip are made of. This category also includes rays, sawfish, and skates. Their cartilaginous skeletons are much lighter than true bone and their large livers are full of low-density oils, both helping them to be buoyant. Even though sharks don’t have bones, they still can fossilize. As most sharks age, they deposit calcium salts in their skeletal cartilage to strengthen it. The dried jaws of a shark appear and feel heavy and solid; much like bone. These same minerals allow most shark skeletal systems to fossilize quite nicely. The teeth have enamel so they show up in the fossil record too.Scalloped hammerhead shark.

2. Most sharks have good eyesight. Most sharks can see well in dark lighted areas, have fantastic night vision, and can see colors. The back of sharks’ eyeballs have a reflective layer of tissue called a tapetum. This helps sharks see extremely well with little light.A night shark’s green eye.3. Sharks have special electroreceptor organs.Sharks have small black spots near the nose, eyes, and mouth. These spots are the ampullae of Lorenzini – special electroreceptor organs that allow the shark to sense electromagnetic fields and temperature shifts in the ocean.4. Shark skin feels similar to sandpaper.Shark skin feels exactly like sandpaper because it is made up of tiny teeth-like structures called placoid scales, also known as dermal denticles. These scales point towards the tail and help reduce friction from surrounding water when the shark swims.Sandbar shark skin.

5. Sharks can go into a trance.  When you flip a shark upside down they go into a trance like state called tonic immobility. This is the reason why you often see sawfish flipped over when our scientists are working on them in the water.Tagging smalltooth sawfish Florida Everglades6. Sharks have been around a very long time.Based on fossil scales found in Australia and the United States, scientists hypothesize sharks first appeared in the ocean around 455 million years ago.Grey reef shark.

7. Scientists age sharks by counting the rings on their vertebrae. Vertebrae contain concentric pairs of opaque and translucent bands. Band pairs are counted like rings on a tree and then scientists assign an age to the shark based on the count. Thus, if the vertebrae has 10 band pairs, it is assumed to be 10 years old. Recent studies, however, have shown that this assumption is not always correct. Researchers must therefore study each species and size class to determine how often the band pairs are deposited because the deposition rate may change over time. Determining the actual rate that the bands are deposited is called “validation”.

8. Blue sharks are really blue. The blue shark displays a brilliant blue color on the upper portion of its body and is normally snowy white beneath. The mako and porbeagle sharks also exhibit a blue coloration, but it is not nearly as brilliant as that of a blue shark. In life, most sharks are brown, olive, or grayish.Blue shark.

9. Each whale shark’s spot pattern is unique as a fingerprint.  Whale sharks are the biggest fish in the ocean. They can grow to 12.2 meters and weigh as much as 40 tons by some estimates! Basking sharks are the world’s second largest fish, growing as long as 32 feet and weighing more than five tons.Whale shark.

10. Some species of sharks have a spiracle that allows them to pull water into their respiratory system while at rest. Most sharks have to keep swimming to pump water over their gills.A shark’s spiracle is located just behind the eyes which supplies oxygen directly to the shark’s eyes and brain. Bottom dwelling sharks, like angel sharks and nurse sharks, use this extra respiratory organ to breathe while at rest on the seafloor. It is also used for respiration when the shark’s mouth is used for eating.Nurse shark.

11. Not all sharks have the same teeth. Mako sharks have very pointed teeth, while white sharks have triangular, serrated teeth. Each leave a unique, tell-tale mark on their prey. A sandbar shark will have around 35,000 teeth over the course of its lifetime! Shortfin mako shark.12. Different shark species reproduce in different ways. Sharks exhibit a great diversity in their reproductive modes. There are oviparous (egg-laying) species and viviparous (live-bearing) species. Oviparous species lay eggs that develop and hatch outside the mother’s body with no parental care after the eggs are laid.

Shortfin mako shark.

Tagging Bonefish


Bonefish Tagging in the Florida Keys with Bonefish & Tarpon Trust
By Nick Roberts, BTT
from The Fishing Wire

A subtle, V-shaped wake appeared on a sun-drenched flat near Big Pine Key. As it approached the skiff, poled by Dr. Ross Boucek, Bonefish & Tarpon Trust’s Florida Keys Initiative Manager, its source was revealed: a pair of bonefish foraging on crustaceans hiding in the sand and seagrass. When the ghostly silhouettes came within range, I cast a couple feet ahead of them.

One of the fish tracked the spawning shrimp fly and suddenly pounced. I set the hook and the gray blur tore across the flat, peeling line from my reel as it headed for deeper water. Within seconds, I was down to my backing. The pressure to land the bonefish was much greater than usual; a pulled hook would mean losing not only a prized catch, but the opportunity for Dr. Boucek to tag the fish and collect important tracking data.Anglers from around the world have pursued bonefish in the Florida Keys, the birthplace of saltwater fly-fishing, since the 1940s and ‘50s, when legends like Joe Brooks and Ted Williams pioneered the sport in the now hallowed waters of Islamorada and Florida Bay.

In the sport’s early years and through its glory days of the 1960s to the mid-1980s, the Keys’ bonefish population seemed as boundless as the pristine flats and mangrove shorelines the fish inhabited. But in the late ‘80s, the population began to decline, prompting a group of concerned anglers to found Bonefish & Tarpon Trust (BTT), a science-based nonprofit organization, in 1998. Not only did BTT seek to determine the causes of the decline, it endeavored to fill in critical knowledge gaps; at that time, only a handful of research studies on bonefish existed, leaving many basic questions to be answered.

Since its founding, BTT has directed research on the life cycle of bonefish, their habitat use, movement patterns, and spawning behavior, and worked with the state of Florida to protect the species under catch-and-release regulations. BTT has also uncovered a number of causes of the decline, including: reduced water quality throughout the Everglades, Florida Bay, and the Florida Keys; habitat destruction (the number of Keys flats classified as “severely degraded” due to propeller scarring has increased 90% in the last 20 years); poor fish handling practices; and diminished numbers of bonefish larvae coming from spawning at “upstream” locations, such as Belize, Mexico, and southwest Cuba. Reduced spawning and reproduction within the severely reduced Keys’ bonefish population has also played a major role in the decline, and the record cold snap in January 2010 likely killed a substantial number of fish.

Dr. Boucek and Nick in search of bonefish in the Lower Keys.Yet there is good reason to be hopeful. Over the past few years, the population has begun to rebound, with guides and anglers reporting increasing numbers of sightings and catches.”There are a lot of bonefish around in three different sizes, all born a year apart from one another,” said Dr. Boucek. “Starting in 2014, a new wave of babies came in, followed by two more new generations in 2015 and 2016. The size classes are approximately 15 to 18 inches (2016 fish), 18 to 20 inches (2015 fish), and 22 to 25 inches (2014 fish).

”Although these new fish are encouraging, we don’t know where they came from, why they are doing so well after years of decline, or if more new fish will continue to enter the Keys population. So it is still critically important that we understand and address the causes of the historic decline, to ensure that a similar downturn does not occur in the future.“The Keys went about 20 years without a good new generation of bonefish coming into the population,” said Dr. Boucek. “That’s a sign of stress on the habitats and the fishery. When habitat gets degraded, fish reproduction is impacted, juvenile fish struggle to survive, and adults don’t grow as fast. And new generations of fish become fewer and farther between.

”Dr. Ross Boucek poles a flat.Among the most important habitats to protect are bonefish spawning sites. If bonefish cannot reproduce successfully, there will be no fishery. From its work in the Bahamas, BTT knows how bonefish reproduce. During full and new moon cycles from fall through early spring, fish from as far away as 70 miles instinctively gather at nearshore sites, where they prepare to spawn by porpoising at the surface and gulping air to fill their swim bladders. At night, they go offshore and dive hundreds of feet before surging back up to the surface. The sudden change in pressure makes their swim bladders expand, causing them to release their eggs and sperm. After fertilization takes places, the hatched larvae drift in the ocean’s currents for over a month before settling in shallow sand- or mud-bottom bays, where they develop into juvenile bonefish.With the help of guides and partners, BTT has identified spawning sites in the Bahamas and along the Belize-Mexico border, yet the locations of the spawning sites in the Florida Keys remain a mystery, one that must be solved if we are to ensure the future health of the Keys’ bonefish fishery and help it reclaim its former glory.“There are a couple possible reasons that might explain the lack of known spawning sites in the Keys,” said Dr. Boucek.

“First, nobody knew what bonefish spawning sites looked like until we discovered one in the Bahamas in 2011. Maybe by then the size of the spawning school in the Keys had shrunk to the point that it wasn’t noticeable to us. Or maybe the size of the Keys population became so small that the fish completely stopped spawning for a period of time. Fish won’t spawn if there aren’t a critical number of spawning fish.”Over the past couple years, several Keys guides have reported seeing schools of bonefish in nearshore waters. Now, Dr. Boucek is counting on the fish he tags to lead him to their spawning sites.As soon as I land the bonefish, Dr. Boucek places it in a submerged inflatable pen. While I hold the fish upside down in the water to keep it calm, he makes an incision in its abdomen. Right away, he notices that the fish is female—ovaries are evident and filled with developing eggs. He inserts a small acoustic transmitter into the abdominal cavity and skillfully stiches the incision closed. The transmitter emits an ultrasonic ping with a unique ID code every couple of minutes. Whenever this tagged bonefish swims past one of the several thousand acoustic receivers, belonging to BTT and other research groups, moored to the ocean floor throughout the Keys, the receiver records the date and time of the transmitter’s ping.

The tracking data will allow Dr. Boucek to chart the fish’s habitat use and, hopefully, locate its spawning site this winter.With the Nick’s assistance, Dr. Boucek (right) tags a bonefish with an acoustic transmitter.An acoustic transmitter.I release the bonefish and we watch as it glides away across the flat and vanishes into the glare.Dr. Boucek (left) and Nick celebrate the successful tagging of a Florida Keys bonefish.  

Nick Roberts is the Director of Marketing & Communications at Bonefish & Tarpon Trust (www.BTT.org) and the editor of the Bonefish & Tarpon Journal.

All photos by: Ian Wilson
Learn more about the work of Bonefish & Tarpon Trust at www.bonefishtarpontrust.org.
Tagging a bonefish

St. Croix’s Avid Surf Rod Series

Versatile New Surf Sticks Deliver Serious Power, Performance and Value
St. Croix’s new Avid® Surf provides custom-level performance without compromise
Press Release: Park Falls, WI (October 25, 2019) – Fishing should always be fun, even when it’s serious business. Booming the perfect cast is fun, hooking up is fun, and winning the battle is fun – as long as that battle is with the fish, not your equipment.Whether casting to bluegills in a farm pond, stripers in the surf or anything – or anywhere – in between, St. Croix Rod owns the mission of building the Best Rods on Earth®. That means making rods that perform dutifully and beautifully so anglers can focus on the joys and rewards of fishing.

Fresh from its debut at ICAST 2019, St. Croix’s new Avid Surf series includes ten, powerful, American-made spinning and casting rods designed for serious surfcasters looking to beach serious fish. Whether heaving heavy baits from the beaches of Cape Hatteras, casting 3-ounce bottle plugs for Montauk stripers, or trying to steer a crazed tarpon away from bridge pilings in the Florida Keys, these super strong, extremely versatile sticks can handle any challenge surf fishing presents.
Avid Surf rods combine St. Croix’s Integrated Poly Curve® (IPC®) mandrel technology with premium, high-modulus SCIII carbon for exceptional strength, smooth power and increased sensitivity. They also sport Fuji® K-Series KW tangle-free guides with Alconite® rings and Corrosion Control™ frame treatment for superior casting distance and improved corrosion protection. The Fuji® DPS Deluxe reel seat with Back Stop™ lock nut and matte grey hoods ensures a rock-solid connection between rod and reel, while a custom cork tape handle with machined trim pieces provides a sure, comfortable and resilient grip.

When St. Croix engineers set out to design the new Avid Surf series, they polled elite surfcasters to see what they valued most. One such surf fishing expert was St. Croix pro-staff member, “Crazy Alberto” Knie. “The new charcoal gray color instantly marks these rods as stealthy and serious,” he says. “When I’m out in the surf – often on the graveyard shift – I want to disappear, not stand out. And I want a rod that will put up with the elements as well as I do. These new Avids pass the test in every way, shape and form. The two lightest spinning rods are one-piece construction. The rest are two-piece rods that give one-piece performance – and they all have a 15-year transferrable warranty. That’s crazy for a rod which will see nothing but abuse!”
Knie is especially impressed by the combination of smooth casting ability and outright power these rods possess. “In a lot of places, you need to deliver heavy payloads far off the beach, and after testing these rods for over a year, there’s no doubt they’re up to task,” he states. “They have the length, strength and leverage to overpower a cow striper, ‘snookzilla’ or even the silver king itself when these trophies plow for structure or make a last-ditch run right in the wash. These new Avids have the look, feel and ability of a high-end custom-designed rod at a great price for surf rats looking to jump to the next level,” he says.

Gavin Falk, Engineering Supervisor at St. Croix’s Park Falls, WI factory, notes that new Avid surf rods are built with corrosion-control guide frames and a new and improved ART (advanced reinforcing technology) that yields increased tensile strength, allows the use of slim profile rod ferrules, and gives added strength to the entire butt section of the rod.
“That’s a real advantage when it comes to hauling back on a trophy fish in need of a direction change,” says Falk. “These rods have impressive power from butt to tip. With their combination of strength, versatility and casting ability, these new Avid Surf models are going to become unique and valuable commodities all surf anglers will want to explore.”Designed and handcrafted at the St. Croix Rod factory in Park Falls, U.S.A., Avid Surf series rods are available in seven spinning and three casting models to handle any surf fishing duty. Spinning rods range in length from 7’ to 12’, while casting choices run 10’ to 12’. Each rod carries a 15-year transferable warranty backed by St. Croix Superstar Service. 
ST. CROIX AVID SURF SPINNING MODELS7’ one-piece, medium power, fast action (VSS70MF)8’ one-piece, medium power, moderate-fast action (VSS80MMF)9’ two-piece, medium power, moderate-fast action (VSS90MMF2)9’6” two-piece, medium-heavy power, fast action (VSS96MHF2)10’ two-piece, medium power, fast action (VSS10MF2)11’ two-piece, medium-heavy power, fast action (VSS110MHF2)12’ two-piece, heavy power, moderate-fast action (VSS12HMF2)ST. CROIX AVID SURF CASTING MODELS10’ two-piece, medium power, fast action (VSC100MF2)11’ two-piece, medium-heavy power, fast action (VSC110MHF2)12’ two-piece, heavy power, moderate-fast action (VSC120HMF2)From bass and blues in the Northeast to big drum in the Mid-Atlantic and the outright bruisers of the Southern Coast, St. Croix’s new Avid Surf rods offer hard-fishing surf rats the unique opportunity to step up to custom-level performance at a reasonable price that comes without compromise. Available now, new Avid Surf rods retail from $250 to $420.

Fishing for Red Snapper


The Long Road to Recovery for Red Snapper


A new method for managing the fish will allow more flexible fishing seasons across the Gulf. 
Joe Richards, Seafavorites.com
from The Fishing Wire

A new method for managing red snapper fishing in the Gulf of Mexico is under way, capping off decades of fighting over one of the Gulf of Mexico’s most famous fish.The approach gives each Gulf state the authority to set red snapper fishing rules for anglers in federal waters—a system that provides flexibility but also requires states to shorten future seasons if the Gulf-wide catch limit is exceeded.

Federal authorities, who previously managed recreational red snapper fishing in federal waters and still regulate commercial and charter-boat fishing of the species, will work with state officials to monitor, study, and collect data on red snapper.The new system began two years ago as a pilot program, and federal officials must give final approval for it to become permanent.

The National Oceanic and Atmospheric Administration is taking public comments through Oct. 7 here. Reduced catch limits have helped the red snapper population steadily recover from decades of overfishing. Joe Richards, Seafavorites.comHere’s a look back at key moments in the Gulf of Mexico red snapper story and a glimpse of what’s to come.

1950-1980s: Commercial and recreational catch skyrockets, rapidly depleting the red snapper population.

Late 1980s: Fishery managers implement regulations, including bag and size limits, but these are not enough to help the species recover.

 1990: Gulf red snapper hit a dangerously low level—just 2 percent of the population’s spawning potential—due to decades of overfishing (removing fish faster than they can be replaced through reproduction) and unintended catch in shrimp trawls. Fishery managers set a target of at least 26 percent for a stable population.  

1997-1998: Fishery managers require shrimp fishermen to install devices in trawl nets to reduce incidental catch of juvenile red snapper. 

2005: A federal recovery plan for red snapper begins after conservation groups sue over lack of progress in rebuilding the population.

2006: Regulators begin setting science-based catch limits for Gulf red snapper as Congress works to strengthen its federal fishery law, the Magnuson-Stevens Fishery Conservation and Management Act.

2007-2008: Managers significantly reduce catch limits for commercial, charter, and recreational fishermen and implement a quota system that reserves a certain amount of red snapper for a limited number of commercial fishermen—a program that successfully keeps commercial catch at sustainable amounts.

2009: Federal fishery managers announce overfishing is projected to end and begin raising annual catch limits. However, the population still has not fully recovered, partly because there aren’t enough older fish, which are the most productive spawners. Scientists project full recovery will take until 2032.

2013: A new federal stock assessment of the red snapper population shows overfishing has ended.

Mid-to-late 2010s: As Gulf red snapper show signs of recovery—a population increase, expanded range, and larger, older individuals—debate heats up over how to divide still-limited catch among recreational, charter, and commercial fishermen. As a group, recreational fishermen exceed their quotas nearly every year.

2014: A court rules the recreational catch excesses must end. Federal regulators begin setting progressively shorter seasons to account for higher catches in state-controlled waters and associated overages. 

2015: As anger grows over catch allocation and to better control catch, fishery managers—in a contentious vote—adopt distinct catch limits for recreational anglers and charter captains, setting the stage to allow different types of management.  

2016: Managers approve revising the amount of red snapper allocated to the recreational and commercial fisheries. However, a lawsuit by the commercial fishermen overturns that change. “Re-allocation” continues to be a tense issue.

2017: Federal managers set a three-day red snapper season, saying longer state seasons are using up allowable Gulf quota. This infuriates and confuses fishermen. Ultimately, the U.S. Secretary of Commerce creates a 39-day federal season. Also, fishery managers vote to require charter captains to keep electronic logbooks documenting amounts of catch.

2018: Federal managers launch a pilot program granting states the right to set recreational seasons in U.S. waters but say states must continue to meet Magnuson-Stevens act requirements for science-based catch limits. States participate using their own data collection programs.  The Gulf of Mexico Fishery Management Council, after changing the threshold for Gulf red snapper and other reef fish, determines it is no longer overfished but keeps a rebuilding plan in place, with a goal of returning the population to full health by 2032.

The Future: Red snapper’s long history is rife with hard decisions and sacrifice, but this once-dwindling species is on the road to recovery. If the rebuilding plan stays on track, anglers can expect a healthier population, bigger fish, higher catch limits, and more fishing days. Managers and fishermen have overcome some of the most difficult hurdles and have ideas about how to resolve those that remain.

With each state using its own method to collect data, NOAA Fisheries will need to standardize information to monitor fishing rates and catch and to assess the population Gulf-wide. Fishery managers likely will continue to struggle with allocating catch between commercial and recreational fishermen.

And one major cause of red snapper mortality remains a problem: Even though anglers and commercial fishermen must release red snapper under certain conditions, the fish often don’t survive being brought to the surface from deeper than 100 feet. Descending tools can help alleviate this problem if used widely and properly.   It’s been a long saga for red snapper, but the future for fishing and this iconic species is promising.

Holly Binns directs The Pew Charitable Trusts’ efforts to protect ocean life in the Gulf of Mexico and the U.S. Caribbean
Catching red snapper

A group of recreational anglers fish for red snapper.