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Scientific Teams Set Out to Track Unprecedented Changes in the Eastern Bering Sea

April 24, 2019 — Over the past five years, winter atmospheric conditions that influence the Bering Sea have been markedly different from previous years. Strong, warm winds out of the south—sometimes lasting more than 30 days—have forced sea ice northward. Water temperatures have been warmer than normal and NOAA scientists have observed some significant changes in marine species. They are in unexpected places, in larger or smaller numbers than normal, and many are thin. Scientists are also seeing changes in the numbers of young fish that are reaching maturity.

“We predict that changing environmental conditions will continue to affect the marine food web structure—and potentially the productivity of the northeastern Bering Sea shelf ecosystem,” said Robert Foy, Director, Alaska Fisheries Science Center. “This is going to be a critical year to survey this region.”

Beginning in April and continuing through September, NOAA scientists will conduct vessel surveys in the Bering Sea. Four of these are annual surveys that have been conducted for several decades, providing a good basis of data so scientists can detect trends and changes in the ecosystem. Another survey, the northeastern Bering Sea bottom trawl survey, has been fully conducted just two times in the past decade. In 2018, Researchers completed a partial survey of the area. This year scientists intend to conduct a full survey to further establish a baseline of data for longer-term monitoring of changes that are taking place.

Read the full story from NOAA Fisheries at Alaska Native News

Blob 2.0 is bad sign for Gulf of Alaska groundfish

December 11, 2018 — Fish heavily impacted by a three-year marine heatwave in the Gulf of Alaska may be headed for round two. Commonly referred to as the blob, warmer waters between 2014 and 2017 were blamed for a dramatic decline in Pacific cod and are thought to have negatively impacted other species such as pollock.

The North Pacific Fishery Management Council set catch limits for several groundfish species in the Gulf of Alaska Thursday afternoon. Before members set those limits, Stephani Zador with the Alaska Fisheries Science Center updated the council on the latest trends in the Gulf.

“Importantly, starting in September, we are officially in another heatwave in the Gulf of Alaska,” she explained.

Pacific cod populations in the Gulf plummeted as their food source decreased during the blob, but after waters returned to somewhat normal temperatures in 2017, Zador said cod body conditions improved.

“All the groundfish in our survey that we sampled, except for cod, had poor body condition. So, they were skinnier per length than average,” Zador said. “That was a sign we saw consistently through the heatwave and indicates that cod were able to pop back up.”

The council slashed the total allowable catch by 80 percent last year and lowered it slightly again this year in order to allow the species to rebound. Pacific cod populations in the Gulf are expected to stabilize in the coming years, but another marine heatwave, or blob 2.0, could hamper any progress.

Pollock have also suffered poor recruitment in recent years, but Zador said larva abundance was above average in 2017. However, much like cod, another heatwave is not a good sign.

Read the full story at KBBI

Researchers are seeing young cod return to the Gulf of Alaska

August 15, 2018 — Tiny cod fish are reappearing around Kodiak.

Researchers aim to find out if it is a blip, or a sign that the stock is recovering after warming waters caused the stocks to crash.

Alaska’s seafood industry was shocked last fall when the annual surveys showed cod stocks in the Gulf of Alaska had plummeted by 80 percent to the lowest levels ever seen. Prior surveys indicated large year classes of cod starting in 2012 were expected to produce good fishing for six or more years. But a so-called warm blob of water depleted food supplies and wiped out that recruitment.

“That warm water was sitting in the gulf for three years starting in 2014 and it was different than other years in that it went really deep and it also lasted throughout the winter. You can deplete the food source pretty rapidly when the entire ecosystem is ramped up in those warm temperatures,” explained Steven Barbeaux with the Alaska Fisheries Science Center in Seattle.

This summer researchers at Kodiak saw the first signs of potential recovery with beach seine catches of tiny first year cod that are born offshore and drift as larvae into coastal grassy areas in July and August.

“A lot can happen in that first year of life that we would like to learn more about to predict whether or not these year classes are actually going to survive,” said Ben Laurel, a fisheries research biologist with the AFSC based in Newport, Ore., whose specialty is early survival of cold water commercial fish species.

Read the full story at National Fisherman

NEFSC Science and Research Director Dr. William Karp to Retire in September

WASHINGTON (Saving Seafood) — May 3, 2016 — Dr. William Karp, the Science and Research Director of NOAA’s Northeast Fisheries Science Center, announced today in an email that he will be stepping down from the position at the end of September. Dr. Karp, who was appointed to the Director position in 2012, has over 30 years of fisheries research experience, working at the Alaska Fisheries Science Center before coming to the NEFSC.

The text of Dr. Karp’s email is reproduced below.

Dear Colleagues and Friends:

After a 30-year career with NOAA Fisheries, I have decided to retire from Federal service on September 30th, 2016.

When I started work at the Alaska Fisheries Science Center in 1986, I was excited by the opportunity to work as a scientist in support of our mission while, at the same time, serving the public.  My understanding of the breadth and depth of our mission has increased greatly during my 30 years of service, and my commitment to science-based management of living marine resources has remained strong.  The work I have done during these 30 years has always been challenging and rewarding, and I have been honored to work with many skilled scientists and administrators.  At the start of my career with NOAA, I joined the midwater assessment team at the Alaska Center, working on acoustic technologies and survey assessment of pollock in the Gulf of Alaska and the Bering Sea.  During my years at AFSC, I changed jobs, and direction, several times, working with different staff at the Center and, increasingly, with partners in academia, the fishing industry, and the international community.  My time as Deputy Science and Research Director at AFSC was especially rewarding as I came to understand the incredible depth and breadth of the Center’s work, and the remarkable impact this has had on the science, management, and conservation of living marine resources throughout Alaska.  Four years ago, I moved to Cape Cod to take on a new assignment as Director of the Northeast Fisheries Science Center.  I was honored to be selected for the position and, as at the Alaska Center, have greatly enjoyed the opportunity to work with a highly dedicated and accomplished staff.  The science and management challenges in New England and the Mid Atlantic differ markedly from those in Alaska, and, while this job has been very demanding, I feel fortunate to have had the opportunity to work with staff, stakeholders, and academic and management partners to improve our science and better inform the management process.

My career with NOAA has been exciting, challenging, rewarding, and fulfilling.  It has been my privilege and my pleasure to work with all of you.

Bill

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