Saving Seafood

Gloucester Daily Times: Right whale population continues to rebound

March 15, 2016 — Here’s a bit of good news about the ocean environment: Right whales, once thought to be on the brink of extinction, are returning to Cape Cod Bay in record numbers.

And it’s not a one-time event. Marine scientists say nearly half of the estimated right whale population of 500 has been spotted in the bay over the past few years. It’s a huge leap from years past, when researchers counted themselves fortunate to see more than a couple dozen visiting the bay in search of food.

“It’s rather extraordinary and somewhat mind-blowing,” Charles “Stormy” Mayo, a senior scientist and director of right whale ecology at the Center for Coastal Studies in Provincetown told the Associated Press.

“There has been a huge pulse in numbers in the past few years,” said Amy Knowlton, a scientist with the New England Aquarium’s Right Whale Research Project.

Read the full opinion piece at the Gloucester Daily Times

Fishing for a solution for endangered right whales

December 29, 2015 — Sometimes technology solves a problem, sometimes it makes it worse.

When researchers at the New England Aquarium and the Center for Coastal Studies in Provincetown examined ropes recovered from whales entangled in fishing gear from 1994 to 2010, they found that entanglements for North Atlantic right whales, the world’s most endangered great whale species, accelerated dramatically from 1993 to 2010, in both frequency and in the severity of the entrapment.

The culprit, scientists believe, is a new type of rope known as Polysteel, that rope manufacturers began making and marketing to fishermen and others in the marine trades as being 40 percent stronger and more durable than other synthetic ropes. Plus, the lobster industry also shifted from wood to wire traps that allowed them to use heavier gear and for the pots to stay in the water through the winter, increasing the likelihood of interaction with whales.

Even though fishermen already employ weak links designed to break and separate the line from the buoy when a whale pulls on it, researchers found the lines themselves were still doing a lot of damage.

“It was a huge change,” said Amy Knowlton, the lead author of the study and a research scientist with the New England Aquarium working to reduce the risk of whale entanglement and death from fishing gear and lines. Scientists put the number of North Atlantic right whales that can be lost due to human causes at less than one per year, if the population is going to increase and avoid extinction. The National Marine Fisheries Service has calculated that 3.25 right whales per year either died or were severely injured between 2007 and 2011 by being caught up in fishing gear and lines. The agency estimates that 83 percent of the right whale population shows scarring from fishing gear.

Read the full story at the Cape Cod Times