Saving Seafood

Scientists looking to understand future ocean acidification effects on commercial fishing

August 26, 2016 — NEWPORT, Ore. — The future is now at the Hatfield Marine Science Center.

In the facility’s laboratories scientists are creating conditions to resemble ocean conditions years from now. The goal is to find out how sea life will react to higher levels of ocean acidification that climate change scientists predict will occur in the not-to-distant future.

Since the Industrial Revolution, humans have been pumping more carbon dioxide into the atmosphere. The ocean absorbs a lot of this CO2, raising its level of acidity. It is feared an ocean that is more acidic will negatively affect sea life, including commercial fishing.

So for those whose livelihoods depend on commercial fishing the scientists’ work is important in understanding what ocean acidification will mean to the fish stocks of the future.

“There is a lot of general concern about the fact that we don’t know a lot about this,” said Lori Steele, the executive director of the West Coast Seafood Processors Association, which is based in Portland. “It’s potentially having an impact, and it’s going to have a much more significant impact, and unless we can really get a handle on it, there’s a potential that fisheries managers aren’t going to be able to do a lot besides controlling fishing.”

Read the full story at KATU

Life on the Line: OSU scientists track effects of a changing ocean on tiny sea life

July 22, 2016 — NEWPORT, Ore. — In a cold mist under gray skies, the Pacific Ocean heaved against the boat as two scientists from Oregon State University pulled a net full of life from the deep.

It was a July day, but it felt like a day in December.

In the net life swarmed, much of it too small to be seen with the unaided eye. The net held the keys to help scientists unlock how creatures of the sea are affected by changing ocean conditions and those effects on the aquatic food chain. And more specifically, the effects to salmon, a fish of much importance to humans.

For 20 years scientists have made bi-monthly trips on what is called the Newport Hydrographic Line, which takes them to the same seven sampling stations along a 25-mile path perpendicular to the coast. The stations are physical points on a map. There are no buoys or other structures that mark their locations. The scientists find them using GPS.

They launch their research vessel, the R/V Elakha, from a dock in Yaquina Bay that sits along a jagged bulge of land on which OSU’s Hatfield Marine Science Center resides. The trips have amassed an extraordinary amount of data about the sea and the life within it. The data is routinely posted on the National Oceanic and Atmospheric Administration’s Northwest Fisheries Science Center website and is used primarily to help forecast salmon runs. But the data has also told the story of changing ocean conditions and its impact on the food chain.

“We can also look at the changes in the bioenergetics of the food chain across the whole 20-year time series,” says OSU research assistant Jennifer Fisher. “It doesn’t just relate to salmon; it relates to sardines and (other) fish. It gives us an idea of ocean acidification, toxic algae – lots of things.”

Fisher has been going on these trips to sea for five years aboard the 54-foot research vessel owned and operated by OSU.

On this day, Fisher, OSU lab technician Tom Murphy and deckhand Dave Weaver use two different cone-shaped nets to capture organisms that live in the sea and that form the basis of the oceanic food chain.

Fisher’s primary interest in the day’s catch is in a tiny crustacean called a copepod. These creatures feed on the sea’s phytoplankton. Copepods are animals with large antennae and are only a millimeter or two in length. Under a microscope their bodies are an elongated oval protected by an exoskeleton. But they are nearly transparent. And inside their bodies scientists have discovered a lipid sac, or stored fat.

Read the full story at KVAL

Survey delay might hurt fish population research

May 12, 2016 — The following is an excerpt from a story published today by the Boston Globe.

NEWPORT, R.I. – Even before mechanics found deeply pitted bearings near crankshafts in its generators, problems that could have led to catastrophic engine failure, the Henry B. Bigelow was running more than a month behind.

Now, the government research vessel is embarking on its annual spring voyage later than ever before, a delay that could have serious consequences for scientists’ ability to assess the health of some of the 52 fish stocks they survey, from the waters off North Carolina to the eastern reaches of the Gulf of Maine.

Fish migrate and change their feeding patterns as waters warm, which might make it difficult for National Oceanic and Atmospheric Administration scientists to compare this spring’s survey of fish populations with previous counts.

The prospect of skewed data could complicate efforts for policy makers to set proper quotas, potentially leading either to overfishing or unnecessarily strict catch limits.

“I worry that this will create statistical noise and more uncertainty,” said Gary Shepherd, a fishery biologist at NOAA’s Northeast Fisheries Science Center in Woods Hole, where he and other scientists recommend quotas based on what the Bigelow catches, along with other data.

As the waters warm, some of the fish, such as herring, migrate out of the survey area and into the region’s rivers. Other species, such as squid, which are short-lived, might not survive in representative numbers through June, when the Bigelow is now scheduled to finish its survey.

“If the survey had started at its normal time, it would have found squid on the continental shelf,” said Robert Vanasse, executive director of Saving Seafood, a Washington-based group that represents the fishing industry. “But now it won’t because the survey doesn’t sample Nantucket Sound.”

Read the full story at the Boston Globe

NOAA Research Vessel Now Homeported in Newport

April 13, 2016 — NEWPORT, RI — Today marks the first day that the 209-foot research vessel Henry B. Bigelow is officially homeported here in Newport, marking a “victory for the Ocean State,” according to U.S. Sen. Jack Reed.

The National Oceanic and Atmospheric Association fisheries research vessel has a primary objective of studying and monitoring Northeast Marine Fisheries throughout New England and has nets that trawl as deep as 6,000 feet.

The Bigelow collects data used for stock assessments that ultimately influences catch limits and fishing quotas as well as help scientists understand changes to the fishery.

Reed said that he has been lobbying for years for the ship to be homeported here in Rhode Island to save taxpayers money.

NOAA officials said that change is based on a study that included another vessel, the Okeanos Explorer, a deep sea exploration ship homeported at Quonset Point at the Port of Davisville in North Kingstown.

See the full story at the Newport Patch