Saving Seafood

Making Catch-And-Release Safer For Sharks

June 10, 2019 — Say the word “shark” to a New Englander these days and the mind jumps straight to great white sharks, which have seen a remarkable increase here in recent years.

But great whites aren’t the only sharks around. And it turns out we know little about many of the sharks that frequent New England’s waters.

Now there’s a new effort to understand how catch-and-release fishing of sandbar sharks impacts their survival.

“We want to know if the catch and release processes is harming the fish in any way, and if it is, we want to work with fishermen to try to figure out what is it about the capture event that is causing the sharks to die,” Jeff Kneebone told Living Lab Radio.

Kneebone is a fisheries scientist with the Anderson Cabot Center for Ocean Life at the New England Aquarium and much of his research focuses on figuring out where sharks are and what they’re doing as they move around the region.

Twenty years ago, Sandbar sharks had a large population off the mid-Atlantic coast. When the population dropped, it became illegal to catch and keep them. But fishermen still are allowed to pursue them using catch-and-release fishing.

Given the sharks’ susceptibility to population declines, Kneebone wants to know more about what happens after they are caught and released. When they die, why?

“Is it how long they’re being fought? Is it how they’re being handled when they’re landed on the beach? Is it where they’re being hooked?” he said.

Read the full story at WCAI

Link To Stress, Health Of Whales Might Be In Giant Mouths

May 29, 2019 — Whale researchers in New England believe they’ve found a new way to measure the amount of stress felt by whales when they experience traumas such as entanglements in fishing gear, and they say the technique could help protect the massive sea creatures from extinction.

The scientists, with the New England Aquarium in Boston, said the method involves measuring stress hormones by studying baleen, the bristly filter-feeding system in the mouths of the biggest whales on the planet. The baleen serves as a record that shows a spike in stress hormones when whales encounter threats such as a changing climate, ship strikes and entanglements, lead author Rosalind Rolland said.

Scientists can use the data to read the stress levels a whale experiences over the course of many years, somewhat similar to reading the rings on a tree. The data is important because whales experiencing more chronic stress are less likely to reproduce, and they can become more susceptible to disease — a bad combination for populations that are perilously low.

“A whale responding to any type of stressor could be interacting with a ship. It could be fishing gear. It could be environmental changes that stress the whale out,” Rolland said in a telephone interview. “This shows the stress hormones are related to what was going on with the whale.”

Read the full story from the Associated Press at WBUR

MASSACHUSETTS: Seals on a comeback, attracting sharks

May 28, 2019 — Seals have rebounded to healthy numbers along Massachusetts’ shores after being nearly decimated by early settlers and a bounty that later wiped out tens of thousands of them, according to experts — and that is what is attracting sharks.

The National Oceanic and Atmospheric Administration estimates there are at least 27,000 gray seals and 75,000 harbor seals in U.S. waters during their breeding seasons.

“What we’re witnessing is a comeback to a really healthy marine environment,” said Kimberly Murray, seal program lead at NOAA Fisheries in Woods Hole.

The numbers are a stark contrast to the 1700s, when gray seals had been nearly wiped out during the first 100 years of New England settlement, said Tony LaCasse, a spokesman for the New England Aquarium in Boston.

By the late 1800s, the seals had rebounded, but conflicts with commercial fisheries and a desire for the seals’ meat and pelts led to a bounty on both gray and harbor seals from 1888 to 1962 in Massachusetts and Maine. During those years, as many as 135,000 seals were killed, Murray said.

“Seals were perceived as competitors to fisherman,” LaCasse said. “Fishermen would carry shotguns in their boats and shoot them on sight.”

Read the full story at the Boston Herald

Moulton’s right whale bill sailing toward House

May 3, 2019 — Last week, a federal panel drafted a slew of conservation recommendations to help the imperiled and declining North Atlantic right whale population. Now Congress may enter the fray.

A House bill to create a decade-long, $50 million grant program to help protect the North Atlantic right whales was approved Wednesday by the National Resource Committee and is heading to a vote by the full House membership.

The bill, with U.S. Rep. Seth Moulton — now announced as a presidential candidate — as the primary sponsor, would require the Commerce secretary to provide $5 million annually for 10 years to fund competitive grants for projects related to the conservation of the whales, whose declining population is estimated to hover under 450.

“The health of the right whales is directly tied to the health of our region’s economy and identity,” Moulton said in a statement. “The whales play a key role in an ecosystem that supports thousands of jobs in commercial fishing and tourism, and it’s up to us to do everything we can to save this species.”

The bill is supported by the New England Aquarium in Boston and the Cape Cod Commercial Fishermen’s Alliance.

A similar bill, with Massachusetts Sen. Ed Markey as a co-sponsor, has been filed in the Senate.

Read the full story at the Gloucester Daily Times

Right Whale Births Up, But Species Faces Extinction

March 13, 2019 — A year after the critically endangered North Atlantic right whale population produced zero calves for the first time on record, the animals have given birth to seven calves so far this winter. But that number is still far too few to convince scientists that the population is rebounding.

“Without concerted efforts to reduce the effects of human activities, this species is likely to go functionally extinct in about 20 years,” Scott Krauss, senior science advisor at the New England Aquarium, said during testimony March 7 at a congressional hearing examining the threats to right whales.

The global population of North Atlantic right whales, which currently stands at about 400, was growing steadily in the 1990s and 2000s, including a record year in 2009 when 39 calves were born. But reproduction rates have slowed precipitously since then.

Read the full story at ecoRi News

Lawmakers take up threats to North Atlantic right whales

March 11, 2019 — The sound of an air horn echoed through a Congressional subcommittee hearing Thursday, set off by U.S. Rep. Joe Cunningham, D-S.C., to mimic what critically endangered North Atlantic right whales might experience during seismic testing for oil and gas.

The loud demonstration occurred at a hearing focused on permits that could soon be issued by the U.S. Department of Interior to five companies to explore oil and gas reserves off the mid- and southern Atlantic states. Critics of the move argue that the North Atlantic right whales, many of which visit Cape Cod Bay to feed, could be harmed in the process.

“We must reduce exposure of all whales but particularly females to stressors that can slow or stop reproduction,” said Scott Kraus, an expert witness with the New England Aquarium’s Anderson Cabot Center for Ocean Life, who appeared during a hearing before the Subcommittee on Water, Oceans and Wildlife.

Read the full story at the Cape Cod Times

MASSACHUSETTS: Meet the New England Aquarium’s robotic research assistant

March 4, 2019 — It weighs around 100 pounds, is about the size of a mini-fridge, and comes with single robotic arm and an 800-foot cord.

The New England Aquarium’s new, remote-controlled underwater vehicle — an unexpected gift from software giant Autodesk Inc. in 2017 — has a range of abilities, from locating lost fishing gear in the Boston Harbor to recording video of sea life that would be off-limits to human divers. Importantly, the device helps fulfill the 50-year-old institution’s often-overlooked core research mission.

“There’s this supposition that aquariums don’t do scientific research,” said John Mandelman, vice president and chief scientist of the Aquarium’s Anderson Cabot Center for Ocean Life. “I think the (vehicle) is a surprise to people because it’s an example of using high-technology to do scientific research at an aquarium that people don’t realize has a scientific research angle.”

It was a couple years ago now that Autodesk’s Boston office called out of the blue to say it wanted to donate a remote-controlled vehicle, or ROV, made by San Diego-based Teledyne SeaBotix, said Mandelman. The company had bought it three years earlier for a one-time project, but it had sat on a shelf unused ever since.

Read the full story at the Boston Business Journal

Whale-saving efforts target oil and gas companies

February 21, 2019 — In an effort to protect endangered whales, conservation groups today filed a motion to stop oil and gas companies from conducting seismic airgun exploration from Delaware to Florida.

“In my expert opinion, the introduction of seismic airgun surveys off the U.S. East Coast represents an existential threat to the North Atlantic right whale, an endangered species that is already in a dangerous state of decline,” Scott Kraus, vice-president and senior science adviser for the Anderson Cabot Center for Ocean Life at the New England Aquarium, said in an expert declaration filed with the plaintiffs’ motion for a preliminary injunction.

The federal Bureau of Ocean Energy Management is poised to issue permits to five oil and gas exploration companies, and seismic surveys could begin as early as March 30, according to the motion.

The plaintiffs want to halt “seismic airgun blasting” in the Atlantic until the merits of their claims are resolved in court, according to the motion.

Read the full story at the Cape Cod Times

Mini baby boom births hope for right whales

February 14, 2019 — It appears that there has been some North Atlantic right whale whoopee going on, but whale researchers on Wednesday cautioned against viewing the recent sightings of six right whale calves as a sure sign of resurgence for the beleaguered species.

Whale researchers on Tuesday confirmed the sighting of the sixth right whale calf off the coast of Florida, elevating the 2018-2019 calving season above each of the past two years, but still well below the 20-year average of 17 calves per calving season.

“It’s definitely not enough to take the view that things have turned around for right whales,” said Philip Hamilton, a research scientist at the New England Aquarium’s Anderson Cabot Center for Ocean Life.

Right whales migrate along the Atlantic coast each year, arriving in New England waters to feed in the late winter and early spring, congregating on Stellwagen Bank and off Cape Cod. They migrate south in the fall to give birth off Florida and Georgia.

Going into this calving season, whale researchers estimated there are only 411 North Atlantic right whales remaining in the oceans, down from about 500 in 2010.

The imperiled state of the North Atlantic right whale stock has thrust fisheries regulators, such as NOAA Fisheries, conservationists and fishing stakeholders into action to try to reverse the dire trend of a shrinking right whale population.

So, producing any right whale calves during the 2019 calving season— which runs roughly from Dec. 1 until late March —remains something of a cause for celebration. It represents a significant improvement over 2018, when none were born, and a (to date) modest increase over 2017, when five calves were born.

Read the full story at the Gloucester Daily Times

Right whale calves a hopeful sign for researchers

January 28, 2019 — The future of the North American right whale remains perilous, but researchers following their progress see hope in three calves spotted so far this winter off the Florida coast.

“It’s a spark of hope,” said Philip Hamilton, a research scientist at the Anderson Cabot Center for Ocean Life at the New England Aquarium. “It’s not even quite to the point of guarded optimism.”

The massive marine mammals migrate in the winter from the waters off Maine and Canada to the waters off northern Florida and southeastern Georgia for a calving season. Considered critically endangered, their total population is estimated at 411 animals. After a deadly year in 2017, with 15 deaths, and no calves born during the 2017-2018 season, whale advocates and researchers had awaited this calving season with trepidation.

An aerial survey team from the Florida Fish and Wildlife Conservation Commission’s Fish and Wildlife Research Institute photographed the latest mother-calf pair, whale No. 1204 and her calf, on Jan. 17 off Amelia Island.

No. 1204 has been particularly prolific, giving birth to at least nine calves in her lifetime. Florida Fish and Wildlife Conservation Commission researchers said she’s one of only three right whales known to have given birth to nine calves.

Read the full story at the Daily Commercial