Oregon State University Archives

Pacific cod can’t rely on coastal safe havens for protection during marine heat waves, study finds

June 28, 2024 — During recent periods of unusually warm water in the Gulf of Alaska, young Pacific cod in near shore safe havens where they typically spend their adolescence did not experience the protective effects those areas typically provide, a new Oregon State University study found.

Instead, during marine heat waves in 2014–16 and 2019, young cod in these near shore “nurseries” around Kodiak Island in Alaska experienced significant changes in their abundance, growth rates and diet, with researchers estimating that only the largest 15–25% of the island’s cod population survived the summer. Even after the high temperatures subsided, the cod have yet to return to pre-heat wave size and diet.

The findings, published today in the journal Scientific Reports, may have broader implications for marine fish populations worldwide, as marine heat waves become longer and more frequent with climate change, the researchers said.

“These coastal habitats aren’t supporting fish in the same way that they used to as a result of marine heat waves,” said lead author Hillary Thalmann, a graduate student in OSU’s Department of Fisheries, Wildlife and Conservation Sciences. “That’s a novel finding, because we don’t always look at the nurseries as a place where size-selective mortality could be occurring rapidly.”

Read the full article at phys.org

US Department of Defense awards grant to project aiming to predict how climate change could lead to conflicts over fishing rights

October 22, 2023 — The U.S. Department of Defense (DoD) has awarded an Oregon State University (OSU) researcher USD 1.4 million (EUR 1.3 million) over three years to predict how fish stocks could shift due to climate change, specifically focusing on movements that have the potential to cause geopolitical tension.

The research aims to support world leaders in reducing the risk of future conflicts and, if tensions do rise, enhancing global preparedness for such instances.

Read the full article at SeafoodSource

A New Tool May Help Crab Fishers Sidestep Dead Zones

March 9, 2022 — The crab pots are piled high at the fishing docks in Newport, Oregon. Stacks of tire-sized cages fill the parking lot, festooned with colorful buoys and grimy ropes. By this time in July, most commercial fishers have called it a year for Dungeness crab. But not Dave Bailey, the skipper of the 14-meter Morningstar II. The season won’t end for another month, and “demand for fresh, live crab never stops,” Bailey says with a squinting smile and fading Midwestern accent.

It’s a clear morning, and he leads me aboard a white-and-blue crab boat, built in 1967 and owned by Bailey since 1992. He skirts a giant metal tank that he hopes will soon hold a mob of leggy crustaceans and ducks his tall frame into a cluttered cabin, where an age-worn steering wheel gleams beneath the front windows and a fisherman’s prayer hangs on the wall: “Dear God, be good to me. Your sea is so great and my boat is so small.”

The churning Pacific is just one challenge Bailey and his fellow crabbers must face. Recent years have also brought outbreaks of domoic acid, which renders crab unsafe to eat, and increasing incidents of humpback whales getting tangled in crab gear. However, there’s another emerging problem that threatens not only Bailey’s livelihood but the very ecosystem that sustains it. I’ve come today to see a tool that could help crabbers manage.

On the counter in the kitchenette, amid bowls of instant noodles and tinned oysters, Bailey shows me a sturdy black tube, about 60 centimeters long, that fits neatly inside a crab pot. When submerged, the contraption measures oxygen levels in the water and, when retrieved, displays them on a separate box with a screen for Bailey to read. The box also beams the data back to scientists at Oregon State University (OSU).

Most marine animals don’t breathe air, but they need oxygen to live, absorbing it from the water as they swim, burrow, or cling to the seafloor. But lately, bouts of dangerously low oxygen levels—or hypoxia—have afflicted parts of the North American west coast, affecting critters from halibut to sea stars. These “dead zones” cause ecological disruption and economic pain for fishers like Bailey, who can’t sell crabs that have suffocated in their traps.

Read the full story at Smithsonian

Oregon State researchers create tool to help protect native fish from hybridizing with non-natives

March 8, 2022 — Oregon State University researchers have created a tool to assess the risk of hybridization among native and non-native fish, a development that could aid natural resource managers trying to protect threatened or endangered freshwater fish species.

The introduction of non-native species poses challenges to native species, including competition for resources and habitat, exposure to diseases carried by the introduced species and the risk of hybridization, which occurs naturally in wild populations as part of the evolutionary process.

The Oregon State research, just published in the journal Frontiers in Environmental Science, focused on two species: bull trout, a fish native to western North America that is protected under the Endangered Species Act; and brook trout, a native to eastern North America introduced in the West more than 100 years ago for recreational fishing purposes.

Bull trout were once abundant in Oregon, Washington, California, Nevada, Idaho and Montana but today are found in less than half of their historic range, and no longer exist in California. They are threatened by habitat degradation and fragmentation, blockage of migratory corridors, poor water quality, the effects of climate change and fisheries management practices, including the introduction of brook trout.

Read the full story from Oregon State University

Oregon State research uncovers key insight for restoration of globally important kelp forests

February 18, 2022 — Restoration efforts for kelp forests may be most effective in areas where the bedrock seafloor is highly contoured, research by Oregon State University suggests.

The findings, published today in the Proceedings of the National Academy of Sciences, are important because kelp, large algae with massive ecological and economic importance around the world, are under siege from environmental change and overgrazing by urchins.

The study, led by recent graduate Zachary Randell when he was an Oregon State doctoral student, shows that kelp forests in areas with ocean floor ruggedness – scientifically termed substrate complexity or surface rugosity – tend toward stability.

There were urchins in kelp forests growing in areas of high substrate complexity, but those urchins did not cause widespread destruction of kelp forests. One hypothesis is that substrate complexity retains “drift algae” – detached pieces of kelp and other algae – which urchins prefer to eat over live kelp, Randell said.

Read the full story at the Tillamook Headlight Herald

Researchers aim to turn seafood byproducts into source of nutrition

November 30, 2021 –A research project led by Oregon State University has the potential to reduce food waste by utilizing seafood byproducts as a cheap, high-quality source of protein.

Oregon State has received a $333,777 grant from the Foundation for Food and Agriculture Research to study whether protein from byproducts such as fish heads, bones and skin left over after processing can be recovered and used as an ingredient in food or dietary supplements.

The seafood industry uses just 30% to 40% of what it harvests for human consumption, while the rest is either made into fishmeal or discarded in landfills.

“This research exemplifies a ‘no stone unturned’ approach to increasing global food and nutritional security through limiting food waste,” said Lucyna Kurtyka, the senior scientific program director with the Foundation for Food and Agriculture Research.

Read the full story at the Daily Astorian

New guide to help evaluate marine protected areas

September 29, 2021 — A new “MPA Guide,” resulting from a collaboration of 42 authors led by Kirsten Grorud-Colvert of Oregon State University, aims to facilitate communication and common understanding about marine protected areas.

The guide was introduced in a paper in the 10 September issue of Science magazine, “The MPA Guide: A framework to achieve global goals for the ocean.” In it, the authors review the consistency, of MPAs and propose a framework by which levels of protection can be evaluated and improved.

Read the full story at SeafoodSource

New study finds variation in climate conditions impact krill production in Antarctica

August 9, 2021 — New research from Oregon State University recently published in the Marine Ecology Progress Series indicates climate conditions have a significant impact on Antarctic krill reproductive success.

Because krill is such an important component of healthy ecosystems, the impacts of krill abundance be far-reaching, the study found.

Read the full story at Seafood Source

Dead zones, a ‘horseman’ of climate change, could suffocate crabs in the West, scientists say

July 30, 2021 — As the Pacific Ocean’s cool waters hugged Oregon’s rugged shore, Nick Edwards, a seasoned commercial fisherman, could not believe his eyes. Stretching over at least 100 yards, he said, were the carcasses of hundreds of Dungeness crabs piled in the sands of a beach south of Cape Perpetua.

The remains of what Edwards deemed “the crème de la crème of seafood” — also one of the state’s most prized fisheries — are the most visible byproduct of a process that usually goes unnoticed by most beach-dwellers: hypoxia, or the emergence of swaths of low-oxygen zones in marine waters.

Hypoxic areas in Oregon, researchers found, have surfaced every summer since they were first recorded in 2002 — leading scientists to determine a recurring “hypoxic season,” akin to wildfire and hurricane ones.

However, climate change has exacerbated its effect, said Francis Chan, the director of the Cooperative Institute for Marine Resources Studies at Oregon State University, resulting in increasingly frequent and extensive hypoxic areas that can morph into “dead zones,” where the total lack of oxygen kills off species that cannot swim away, much like the Dungeness crabs.

Read the full story at The Washington Post

OSU chosen to lead NOAA institute for marine research

June 9, 2021 — Oregon State University said Tuesday it has been selected to host a National Oceanic and Atmospheric Administration institute focused on collaborative study of the rapidly changing ocean and expanded demands on its use.

The Cooperative Institute for Marine Ecosystem and Resources Studies, or CIMERS, will focus on four research themes: conservation, protection and restoration of marine resources; marine ecosystems; ocean acoustics; and ocean, coastal and seafloor processes.

The institute will be eligible for up to $37 million in funding over the next five years, with potential for renewal for five more years.

“NOAA’s significant support of this collaborative marine institute underscores Oregon State University’s longstanding contributions in leadership, research and teaching to protect and enhance our oceans,” said OSU Interim President Becky Johnson. “We must accelerate that work due to the extraordinary pressures and changes taking place in our oceans and climate. OSU’s collaborative model of engaging many colleges, academic disciplines and external partners is well-suited to address these issues.”

NOAA supports 20 cooperative institutes in 28 states and the District of Columbia, providing funding to extend basic and applied research beyond the federal agency’s capacity. The institutes also serve as a training ground for future NOAA employees through undergraduate, graduate and post-doctoral education programs that align with NOAA’s mission.

Read the full story at KTVZ