Saving Seafood

Tuna species productivity and size may decrease due to climate change

March 1, 2023 — Understanding how climate change and fishing pressure affect major commercial species productivity and body size is key to being able to adapt and ensure the future sustainability of the fisheries.

In this context, a team from Spain’s Ciencia y tecnología marina y alimentaria (AZTI) has coordinated a study, published in Global and Planetary Change, in which the projections in  and swordfish productivity and body size in the future under different climatic and fishing scenarios have been analyzed. A model that includes many mechanisms that represent the population dynamics of different species and the competition between them has been used for this purpose.

“We wanted to know how the climate change and fishing pressure is going to impact some of the most commercially important species in order to make decisions to ensure the future of the resources,” says Maite Erauskin-Extramiana, the AZTI researcher who led the study.

Read the full article at PHYS.org

The Future of Fishing Is Big Data and Artificial Intelligence

May 10, 2018 — New England’s groundfish season is in full swing, as hundreds of dayboat fishermen from Rhode Island to Maine take to the water in search of the region’s iconic cod and haddock. But this year, several dozen of them are hauling in their catch under the watchful eye of video cameras as part of a new effort to use technology to better sustain the area’s fisheries and the communities that depend on them.

Video observation on fishing boats—electronic monitoring—is picking up steam in the Northeast and nationally as a cost-effective means to ensure that fishing vessels aren’t catching more fish than allowed while informing local fisheries management. While several issues remain to be solved before the technology can be widely deployed—such as the costs of reviewing and storing data—electronic monitoring is beginning to deliver on its potential to lower fishermen’s costs, provide scientists with better data, restore trust where it’s broken, and ultimately help consumers gain a greater understanding of where their seafood is coming from.

“Electronic monitoring is a tremendous tool,” says Brett Alger, national electronics technology coordinator for NOAA Fisheries. “It isn’t necessarily for everyone or every fishery,” but “we’re working collaboratively in all of our regions with fishermen on the ground to understand their needs. I expect it to grow.”

The technology is required for highly migratory longline species in the Atlantic (swordfish). It’s thriving in the Pacific coast groundfish industry, and dozens of other fisheries regions have pilot initiatives.

Read the full story at Civil Eats

 

NMFS Institutes More Swordfish Research Off Florida, Praised by EDF

August 16, 2017 — SEAFOOD NEWS — Dr. David Kerstetter of Nova Southeastern University will receive an exempted fishing permit (EFP) from the National Marine Fisheries Service (NMFS) to conduct research in the East Florida Coast Pelagic Longline Closed Area. Dr. Kerstetter will be working alongside Atlantic swordfish fishermen in an effort to “improve understanding of encounter rates of juvenile swordfish and species like sharks, bullfishes and sea turtles in order to find the best ways to reduce their mortality.”

According to Katie Westfall, senior manager of highly migratory species advocacy for EDF’s Oceans Program, fishermen have already made sacrifices to help the Atlantic swordfish population rebound. However, this project will help by collecting data from fisheries that “interact with imperiled highly migratory species.”

“The project will also pioneer an approach to link catch data with oceanographic data, allowing researchers to learn over time where and when species will occur in order to help fishermen avoid bycatch of sharks, billfishes, and sea turtles,” Westfall added. “This has the potential to be transformative by dramatically minimizing unnecessary deaths of protected species while improving the catch of healthy target species like swordfish.”

Westfall is hopeful that the research will help “pave the way to responsibly increasing yield in domestic fisheries and strengthening revenues for American seafood businesses.”

This story originally appeared on Seafoodnews.com, a subscription site. It is reprinted with permission.