Saving Seafood

New Method to Estimate Abundance/Detect Trends in North Atlantic Right Whales Confirms Recent Population Decline

Study confirms need for urgent action

September 22, 2017 — NOAA Fisheries researchers and colleagues at the New England Aquarium have developed a new model to improve estimates of abundance and population trends of endangered North Atlantic right whales, which have declined in numbers and productivity in recent years.  The findings were published in the journal Ecology and Evolution.

Between 1990 and 2010, the abundance of North Atlantic right whales increased just under three percent per year, from about 270 animals in 1990 to 482 in 2010. After relatively steady increases over that time, abundance has declined each year since 2010 to 458 animals in 2015.  The analysis shows that the probability that the population has declined since 2010 is estimated at 99.99 percent. Of particular concern is decline of adult females in the population, estimated at 200 in 2010 but 186 in 2015, the known deaths of 14 North Atlantic right whales this year, and the widening gap between numbers of males and females.

“Although our work directly reveals a relatively small decrease, the subtext is that this species is presently in dire straits,” said lead author Richard Pace.

Read the full story at the Northeast Fisheries Science Center

A new model for right whale estimates

New system confirms population decline as another death is reported in Canada.

September 21, 2017 — NEW BRUNSWICK, Canada — Another North Atlantic right whale death in Canadian waters has brought further attention to the threat of fishing gear to the endangered marine mammals.

“It’s considered a severe entanglement,” New England Aquarium spokesman Tony LaCasse said of the dead female, believed to be around 3 years old. Fishing rope and gear, including a snow crab pot, entangled the pale, deeply cut carcass, estimated to be 36 feet long.

The right whales, which frequent Cape Cod waters in late winter and early spring, are among the rarest whales in the world, with 524 estimated in 2015 in a report by the North Atlantic Right Whale Consortium. The death brought the total fatalities this year to 14, representing about 3 percent of the population.

The carcass was spotted by airplane surveyors Friday off Miscou Island, New Brunswick. The dead whale was towed to the island Monday, and a necropsy was performed Tuesday.

“The key thing is that the animal was entangled,” said Tonya Wimmer of the Marine Animal Response Society in Halifax, Nova Scotia.

Read the full story at the Cape Cod Times

Trump administration nears decision that sets stage for offshore drilling in the Atlantic

September 11, 2017 — Environmental groups are bracing for the Trump administration to approve controversial testing along the Eastern seaboard that would mark a significant step toward offshore drilling in waters off the coast of Florida all the way north to the Delaware Bay.

Five geophysical survey companies are seeking federal permission to shoot pressurized air blasts into the ocean every 10 to 12 seconds around the clock for weeks and months at a time, seeking fossil fuel deposits beneath the Atlantic Ocean floor.

The testing, which would cover 330,000 square miles of ocean, faces fierce opposition from environmental groups and local officials due to the possible economic and environmental effects.

Because the underwater blasts are louder than a Saturn V rocket launch and can be heard by monitoring devices more than 2,500 miles away, scientists fear long-term exposure to the noise could cause hearing loss and impair breeding, feeding, foraging and communication activity among dolphins, endangered whales, other marine mammals and sea turtles.

Some worry the blasts could cause mother whales and their calves to become separated. Commercial and recreational fisheries could also be affected if fish change their breeding and spawning habits to avoid the noise. Others fear disoriented marine life could collide with the vessels that tug the air guns or become entangled in their lines. Oceana, an international conservation group, estimates that 138,000 marine mammals could be injured in the testing process.

Seventy-five marine scientists asked the Obama administration in 2015 to reject seismic air gun testing in the Atlantic because of these threats. Twenty-eight marine biologists did the same in 2016 over concerns that testing would harm the estimated 500 endangered North Atlantic right whales.

“That’s the species we are most concerned about,” said Doug Nowacek, associate professor of conservation technology at the Duke University Marine Laboratory in Beaufort, North Carolina. “They are in decline. They live coastally along the U.S. They were hunted (by whalers) and they were slowly recovering. And now they’re starting to decline again.”

Read the full story from the McClatchy Company at the Miami Herald

U.S. opens investigation into deaths of right whales

At least 13 of the rare whales have been found dead this year off the coasts of Canada and New England.

August 25, 2017 — The federal government is launching an investigation into the recent deaths of more than a dozen North Atlantic right whales.

At least 13 of the whales have been found dead this year off the coasts of Canada and New England. The whales are among the rarest marine mammals in the world, numbering no more than 500.

An arm of the National Oceanic and Atmospheric Administration said Thursday that it is declaring the deaths “an unusual mortality event.”

Read the full story from the Associated Press at the Portland Press Herald

Accidental deaths of endangered whale threatens its survival

August 16, 2017 — PORTLAND, Maine — A high number of accidental deaths this year among the endangered North Atlantic right whale threaten the survival of the species, according to conservation groups and marine scientists.

The right whales, which summer off of New England and Canada, are among the most imperiled marine mammals on Earth. There are thought to be no more than 500 of the giant animals left, and there could be fewer than 460, as populations have only slightly rebounded from the whaling era, when they nearly became extinct.

Twelve of the whales are known to have died since April, meaning about 2 percent of the population has perished in just a few months, biologist Regina Asmutis-Silvia of the Plymouth, Massachusetts-based group Whale and Dolphin Conservation told The Associated Press this week. She and others who study the whales said this summer has been the worst season for right whale deaths since hunting them became illegal 80 years ago.

“This level of deaths in such a short time is unprecedented,” she said. “I just don’t know that right whales have time for people to figure it out. They need help now.”

Read the full story from the Associated Press at WRAL

Endangered right whales seeing catastrophic die-off in New England, Canadian waters

The deaths of dozens of whales may be the result of a migration to less-protected areas because of lack of food in the Gulf of Maine.

August 15, 2017 — The North Atlantic right whale, the world’s second most endangered marine mammal, is having a catastrophic year in the waters off New England and Atlantic Canada, and scientists from Maine to Newfoundland are scrambling to figure out why.

At least a dozen right whales have been found dead this summer in the worst die-off researchers have recorded, a disastrous development for a species with a worldwide population of about 500.

“Just imagine you put 500 dollars in the bank, and every time you put five in, the bank takes 15 out,” says Moira Brown, a right whale researcher with the New England Aquarium who is based in Campobello Island, New Brunswick. “This is a species that has not been doing well, even before we had all the dead whales this summer.”

Canadian authorities have documented 12 dead whales in the Gulf of St. Lawrence since June 7, though it’s possible that two carcasses that weren’t recovered after their initial sighting were counted twice. Two more of the rare, slow-moving whales were found dead off Nantucket and Martha’s Vineyard, bringing this summer’s mortality to between 12 and 14 whales, more than 3 percent of their total population.

Humans appear to have been the immediate cause of at least some of the deaths. Necropsy results have been issued for just four of the whales found off Canada, showing one had become entangled in snow crab fishing gear and three were apparently struck by ships.

The whales deaths have prompted Canadian officials to impose emergency restrictionson shipping and snow crab fishermen in parts of the Gulf of St. Lawrence – the vast body of water bounded by New Brunswick, Nova Scotia, Newfoundland, Labrador and eastern Quebec – and an urgent effort by researchers to figure out what happened.

Read the full story at the Portland Press Herald

Tenth right whale found dead: ‘This population can’t sustain another hit’

August 3, 2017 — The first North Atlantic right whale to turn up dead in the Gulf of St. Lawrence was a 10-year-old male, back on June 7. Researchers had spotted it just six weeks earlier in Cape Cod Bay, looking healthy.

Another was a vital 11-year-old female that might have added at least five to 10 calves to the dwindling population.

Among the others: Two whales at least 17 and 37 years old, according to the New England Aquarium, which catalogues them through their distinctive white markings.

The 10th and most recent carcass of the critically endangered species found in the gulf was reported Tuesday, a horrendous die-off not seen since the docile, curious creatures were hunted for their oily blubber in the 1800s.

The federal Department of Fisheries said the “unprecedented number of right whale deaths is very concerning.”

It’s estimated there are only about 500 North Atlantic right whales still living, and Jerry Conway of the Canadian Whale Institute in Campobello, N.B., said the losses are disastrous for an already vulnerable species.

“We feel there is tremendous urgency,” he said Wednesday in an interview. “This has had catastrophic ramifications on the right whale population, this number of whales being killed when we only know of three calves being born this year.

“It certainly indicates a rapid decline in the population.”

Read the full story at the Times Colonist

Marine group disentangles humpback whale off Cape Cod

July 22, 2017 — A marine conservation group says it has disentangled a young humpback whale off Cape Cod.

The Center for Coastal Studies says a charter vessel discovered the whale just outside Nauset Inlet on Friday afternoon. It had a bridle of heavy line looped though its mouth and twisted across its back. Two orange buoys trailed behind it.

The center’s Marine Animal Entanglement Response team cut away the gear and the twisted line, leaving the whale with just a short length of line in its mouth. As the whale moved away the remaining rope was pulled from its mouth and it sped off.

The Center for Coastal Studies urges boaters to report any entanglement sightings of whales, sea turtles or other marine animals.

Read the full story from the Associated Press at the Gloucester Times

NOAA Announces Continuation of Voluntary Speed Restriction Zone

July 21, 2017 –A voluntary speed restriction zone about 15 miles south of Nantucket has been extended by the National Oceanic and Atmospheric Administration’s fisheries division.

NOAA established the speed restriction zone last month due to the presence of three endangered North Atlantic right whales.

The voluntary speed restriction zone will be in effect through July 30.

According to researchers, there are only about 400 North Atlantic right whales still in existence.

Those who approach a right whale closer than 500 yards will be in violation of federal and state law and could lead to criminal charges.

All right whale sightings are to be reported at 1-866-755-6622.

Read the full story at CapeCod.com

Right Whale Disentanglements Allowed on Case-by-Case Basis

July 21, 2017 — The disentanglement of critically endangered North Atlantic right whales has been authorized by the National Marine Fisheries Service on a case-by-case basis.

The agency suspended all whale responses last week after a Canadian responder was killed while disentangling a right whale off New Brunswick.

NOAA lifted the ban for all other species Tuesday after reviewing safety policies.

Right whale responses will be contingent upon a review of circumstances and available resources.

Read the full story at CapeCod.com