Saving Seafood

MASSACHUSETTS: Omar the shark back in Chatham

June 27, 2017 — An 11-foot great white shark known to researchers as Omar has returned to Cape Cod just in time for the summer season, according to local shark watchers.

Massachusetts Division of Marine Fisheries scientist Gregory Skomal and his team of researchers tracked the tagged shark from their boat off the coast of Chatham early yesterday morning.

“It’s exciting,” Skomal said. “It’s like seeing somewhat of an old friend.”

As the Herald reported yesterday, 147 great white sharks were confirmed in Cape Cod waters last summer, and Skomal predicts at least that many will return this season. The sharks are largely drawn to the abundant grey seal population that lives off the Cape’s eastern seaboard.

Omar has a history in Cape waters. According to the Atlantic White Shark Conservancy, biologist John Chisholm first identified the great white in 2015. Skomal tagged the animal when he returned last summer, allowing his team to detect when Omar swims near one of their research receivers.

Read the full story at the Boston Herald

Cape Cod Warned of Shark Boom

June 26, 2017 — A great white shark population boom is underway off Cape Cod, with as many as 150 expected in local waters this summer — and first responders are training to keep an eye out for the massive predators and deal with their traumatic bites.

“They have multiplied in numbers exponentially since I became chief,” said Orleans fire Chief Anthony Pike, who has led Orleans Fire and Rescue for the past three years. “Great white sharks comprise about 30 percent of my daily work right now, and I never, ever thought that would be a thing.”

Massachusetts Marine Fisheries scientist Gregory Skomal and others began studying the regional population of white sharks in 2014, when they counted 68 great whites. Last summer, that number was 147.

Skomal says 40 percent of the 141 sharks his research team tracked in 2015 returned to Cape waters in 2016. According to the Atlantic Shark Conservancy, there have already been eight confirmed great white sightings this month. Great whites typically patrol to the cool ocean waters off Chatham and other Cape towns between July and October, and Skomal — who has been with Marine Fisheries for 30 years — said the number of shark sightings has jumped over the past decade.

“For my first 20 years we never talked about sharks,” Skomal said.

Great whites travel to the Cape to prey on the area’s large population of gray seals. The last fatal shark attack in Massachusetts was in 1937, and if one of the animals does bite a human, Skomal said it’s most likely a case of “mistaken identity.”

“You know, biting the person thinking that it might be a normal prey item like a seal. Typically, the shark won’t eat the person,” Skomal said. “As a result, though, white sharks have very big jaws and sharp teeth, and cause traumatic injuries, and those kinds of traumatic injuries could lead to fatality.”

Read the full story at the Boston Herald

Sharks should be happy about new Google Earth survey of seal populations

June 14, 2017 — Gray seals are booming. They’ve flocked to coastal Massachusetts, where hunters once killed the animals wholesale — a dead seal’s nose could fetch a $5 reward in the 1960s.

Twenty years ago, there were about 2,000 seals near Cape Cod and Nantucket. A new estimate, published Wednesday in the journal Bioscience, suggests there are now as many as 50,000.

‘‘We should be celebrating the recovery of gray seals as a conservation success,’’ said David Johnston, an author of the study and marine biologist at Duke University .

Where seals go, sharks often follow. Great white sightings in Cape Cod increased from 80 in 2014 to 147 in 2016. Johnston said the shark spike may be linked to the seals. ‘‘One of our tagged animals was killed by a white shark,’’ he said.

Maine and Massachusetts once placed bounties on seals because fishermen feared they would gobble up valuable fish such as cod. (There is little evidence that seals actually compete with fishermen, Johnston said.) The century-long bounty hunt claimed up to 135,000 animals.

The seals bounced back after 1972’s Marine Mammal Protection Act outlawed the killings. ‘‘I’m a firm believer if you just stop doing bad things to wildlife they will recover,’’ Johnston said. The seals’ recovery raised a question infrequently asked in conservation: What happens after success?

‘‘We haven’t done a great job of preparing people,’’ he said, ‘‘that they would be back again.’’

Part of that means quantifying the success. In 2011, a National Marine Fisheries Service aerial survey estimated 15,000 seals swam in southeastern Massachusetts waters.

Read the full story at the Boston Globe

White sharks rebound in California

June 10, 2017 — Most of the millions of beachgoers who flock to southern California’s coast never notice the baby sharks swimming laps just offshore, but that’s starting to change.

The sharks aren’t on the prowl for sunblock-glazed snacks: the Southern California Bight – the coastal waters from Santa Barbara to the U.S.-Mexico border – is a white shark nursery.

It’s where the young predators hide out, stay warm, and learn to hunt, before joining adults in deeper seas.

Though their species has long been declining, baby white sharks are making a surprising comeback in the Bight.

Their return tells a bigger environmental success story: federal and state regulations stretching back 40 years have curtailed pollution and repaired the marine food web that includes white sharks (formerly called great white sharks). “You can’t have an ecosystem that’s badly damaged and have predators,” Chris Lowe, director of the Shark Lab at California State University-Long Beach, says.

The Bight’s baby white sharks declined for a number of reasons, Lowe says: poor water quality, their decimation as gillnetting bycatch, and the near-extirpation of the prey that adult sharks rely on.

Likewise, no single environmental law saved them. Instead, a suite of regulations enacted from the 1970s to the mid 1990s helped restore southern California’s coastal ecosystem enough for its white shark nursery to eventually start recovering.

Read the full story at Business Insider

Cape gray seal population estimated at up to 50K

April 7, 2017 — While the first day of the U.S. Marine Mammal Commission’s annual meeting, held for the first time on Cape Cod, dealt with threats to a tiny Mexican porpoise and massive Arctic polar bears, Thursday’s sessions brought the focus home with a profoundly local subject: gray seals.

“These animals are reassuming their ecological roles,” said David Johnston, an assistant professor at Duke University. “And people freak out.”

Seals are back in force, with between 30,000 and 50,000 living in the waters of Southeastern Massachusetts, primarily on and around Cape Cod, according to a new estimate produced by Johnston to be published in an upcoming report. Feelings about their return, however, are decidedly mixed.

After seal hunts and bounties exterminated gray seals from New England by the mid to late 60s, few imagined they would come back, certainly not to the point where tens of thousands now inhabit the Cape and surrounding waters.

Fishermen complain about seals taking their catch, boats run into them, some question their effect on water quality or their potential to spread disease, and raise concerns about the threat of a rapidly expanding great white shark population, visiting Cape waters to dine on blubber.

Read the full story at the Cape Cod Times

Cape Cod may use high-tech balloon to spot great white sharks

March 20, 2017 — Researchers and public safety officials may soon have a new tool to track the growing great white shark populations off the coast of Cape Cod.

Shark researcher Greg Skomal, a scientist with the state’s Department of Marine Fisheries whose team recently completed a major study of the region’s shark populations, is considering launching a pilot program to use a high-tech balloon to spot sharks in the waters near Chatham, according to a report in the Cape Cod Times.

A Miami-based company, Altametry SmartBalloon, has developed a balloon with high-definition cameras, video streaming capability and specialized lens filters to peer under the ocean’s surface and alert officials to sharks that near the shoreline.

“I think it has great potential and I’m excited to be trying it,” Skomal told the Cape Cod Times.

Read the full story at Mass Live

Unraveling the mysteries of great white sharks

September 6, 2016 — Meeting a great white shark in the wild is nothing like you expect it would be. At first glance it’s not the malevolent beast we’ve come to expect from a thousand TV shows. It’s portly, bordering on fat, like an overstuffed sausage. Flabby jowls tremble down its body when it opens its mouth, which otherwise is a chubby, slightly parted smirk. From the side, one of the world’s greatest predators is little more than a slack-jawed buffoon.

It’s only when the underwater clown turns to face you that you understand why it’s the most feared animal on Earth. From the front its head is no longer soft and jowly, but tapers to an arrow that draws its black eyes into a sinister-looking V. The bemused smile is gone, and all you see are rows of 2-inch teeth capable of crunching down with almost 2 tons of force. Slowly, confidently, it approaches you. It turns its head, first to one side and then the other, evaluating you, deciding whether you’re worth its time. Then if you’re lucky, it turns away, becoming the buffoon again, and glides lazily into the gloom.

There are more than 500 species of sharks, but in popular imagination there’s really only one. When Pixar needed an underwater villain for its animated film Finding Nemo, it didn’t look to the affable nurse shark or the aggressive bull shark. Not even the tiger shark, which would be more appropriate in Nemo’s coral-reef home. It was the great white shark — with its wide, toothy grin — that was plastered on thousands of movie billboards across the world.

The great white shark is the ocean’s iconic fish, yet we know little about it — and much of what we think we know simply isn’t true. White sharks aren’t merciless hunters (if anything, attacks are cautious), they aren’t always loners, and they may be smarter than experts have thought. Even the 1916 Jersey Shore attacks famously mentioned in Jaws may have been perpetrated by a bull shark, not a great white.

We don’t know for sure how long they live, how many months they gestate, when they reach maturity. No one has seen great whites mate or give birth. We don’t really know how many there are or where, exactly, they spend most of their lives. Imagine that a land animal the size of a pickup truck hunted along the coasts of California, South Africa, and Australia. Scientists would know every detail of its mating habits, migrations, and behavior after observing it in zoos, research facilities, perhaps even circuses. But the rules are different underwater. Great whites appear and disappear at will, making it nearly impossible to follow them in deep water. They refuse to live behind glass — in captivity some have starved themselves or slammed their heads against walls.

Read the full story at The Week

Rare Great White Nursery Found Off Coast of Long Island, New York

September 1, 2016 — Jaws is back and she’s got babies.

Even though great white sharks have been on this Earth for thousands of years and have held a place in pop culture for decades, there is still little known about these apex predators. Scientists aren’t sure how these animals mate and have never witnessed a great white shark give birth, so recent news of a great white shark nursery in the Northern Atlantic is colossal.

According to Smithsonian, research group Ocearch, led by former Shark Wranglers host Chris Fischer, believes the waters off Montauk, Long Island, in New York may be a sort of baby shark daycare center, after finding and tagging 9 great white shark pups in the area in the last two weeks.

“[This is] definitely the nursery, likely the birthing site,” Fischer tells Jeff Glor of CBS This Morning. “Probably the most important significant discovery we’ve ever made on the ocean.”

Read the full story at People

Tracking Great White Sharks off Cape Cod by Land, by Air, by Sea

August 23, 2016 — Two days a week, from June through October, the Aleutian leaves the dock of the Chatham Bars Inn in Chatham, Massachusetts, in search of great white sharks.

Marine scientist Greg Skomal of the Massachusetts Division of Marine Fisheries is usually on board armed with two poles: one for filming the elusive predators and another for placing acoustic tags. He’s joined by a small crew of researchers and by Atlantic White Shark Conservancy executive director and co-founder Cynthia Wigren.

“The ultimate goal, really, is to learn as much as we can about the species to be able to protect it and support the conservation of white sharks,” said Wigren.

Read the full story at ABC News

OCEARCH Tags and Releases Great White Shark Pups For The First Time Off Long Island

August 22, 2016 — MONTAUK, N.Y. — Meet Montauk and Hudson, two young-of-the-year great white sharks just tagged and released off Montauk, NY by OCEARCH and its collaborative team of multi-disciplined scientists.

“This is an exciting marine conservation event right here in our New York seascape,” said Jon Forrest Dohlin, Director of WCS’s New York Aquarium.

“We’ve learned a lot about the adult sharks in recent years, but the pups are still a complete mystery,” said Tobey Curtis, lead scientist and Fisheries Manager at NOAA Fisheries. “Tagging these baby white sharks will help us better understand how essential Long Island waters are for their survival.”

Montauk, a 50-pound, 4-foot female white shark, and Hudson, a 67-pound, 5-foot male white shark, are the first two white sharks tagged by the shark-tagging partnership in New York waters. The tags on these young-of-the-year sharks will allow scientists to track their movements up and down the coast for the next several years.

The team, which includes researchers from WCS, NOAA Fisheries, South Hampton Schools, Florida Atlantic University, New Jersey Institute of Technology, and Stony Brook University, collected blood samples, fin clips, parasites, muscle sample and took measurements of the sharks. Each sample provides baseline data previously unattainable for great white sharks in this initial phase of life.

Read the full release at Marketwired