April 8, 2024 — The following was released by NOAA Fisheries:
Seafood is a vitally important source of protein. Worldwide, more than 3 billion people rely on seafood as a significant part of their diets.
The amount that we can sustainably fish and farm is based on historical catches and trends that have been monitored for decades. We need to understand their breeding cycles and growth rates, along with cyclical patterns of ocean currents and climate—and the ecosystems they live in. This allows us to build models that inform sustainable management strategies for harvesting seafood. However, climate change continues to disrupt long-standing expectations, strategies, and the communities that depend on them.
Scientists at the NOAA Fisheries Alaska Fisheries Science Center are collaborating with communities, managers, and other government and academic scientists in the Bering Sea region. They authored a new paper that develops climate-informed management scenarios for fisheries in the eastern Bering Sea.
“Several years ago, we recognized that climate change was going to affect our fisheries in Alaska. So, in 2015, we started a new initiative, the Alaska Climate Integrated Modeling Project, or ACLIM, with the goal of creating climate informed models to help us adapt to a warming planet,” remarks Anne Hollowed, lead author and retired center scientist.
ACLIM is a collaboration among more than 50 interdisciplinary experts that projects and evaluates climate impacts and effective responses for social and ecological systems in and around the Bering Sea. It is also part of NOAA’s Climate, Ecosystems, and Fisheries Initiative (CEFI) to build decision support systems for climate informed decision making in each region.
Kristin Holsman, co-author with the center and co-lead investigator on ACLIM, adds, “The climate change shifts and extreme events that have occurred over the past decade in the North Pacific and Bering Sea really underscore the need for climate innovation in fishery management. ACLIM lets us meaningfully connect cutting-edge science tools and information for fishing communities and resource managers to help prepare for and respond to climate change. The key in this is incorporating social and economic input in addition to biological and oceanographic information.”
The climate-related events that Holsman refers to are the 2015–2016 and 2018–2019 marine heat waves. They caused wide-scale declines in marine species such as snow crabs.
University of Washington scientist and co-author Andre Punt states, “The interdisciplinary nature of ACLIM is what makes it so valuable. Along with NOAA, we have representatives participating from our university, the North Pacific Fisheries Management Council, Native Alaskan communities, international organizations, among others—all dedicated to solving these important issues related to climate change.”