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Fisheries

Overfishing and environmental issues have led to a decline in fish populations, creating uncertainty worldwide and threatening global economic and food security.

Rob Walz works aboard his fishing vessel the Finast Kind II for the WHOI-CFRF Shelf Fleet Program. (Commercial Fisheries Research Foundation). (Daniel Cojanu, © Woods Hole Oceanographic)

The ocean is a vital source of food and livelihood for millions worldwide. Fisheries - both industrial and small-scale - are essential to global food security, economies, and coastal communities. Researchers study fish populations, ecosystem dynamics, and the impact of fishing practices to support sustainable ocean use. Scientists and fishers often collaborate on this work, from tracking predator-prey relationships in the deep ocean twilight zone to exploring shifting squid populations to improving the accuracy of stock assessments.

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How does ocean warming affect fisheries?

The ocean has absorbed 93% of excess heat from human activities, raising its temperature by 1.5°F since 1901. Warming oceans impact fish migration, leading to conflicts and overfishing.

Ocean economists also investigate the broader challenges of global fisheries, including illegal, unreported, and unregulated fishing, which threatens marine biodiversity and undermines international conservation efforts. Researchers combine advanced technologies, such as autonomous vehicles and smart sensing tools, with local knowledge from fishing communities to develop effective solutions for protecting marine life and supporting the people who depend on it. Their work informs management decisions and promotes more sustainable approaches to ocean resource use in an ever-changing environment.

What fuels New England’s fisheries?

New England’s famous fisheries rely on tiny but mighty plankton.

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(Woods Hole Oceanographic Institution)

Aquaculture

Aquaculture is the farming in fresh and saltwater environments of aquatic animals or plants principally for food. Fish, mollusks, crustaceans, and kelp are a few examples.

An aerial view of Raja Ampat

Marine protected areas

Marine protected areas refers to any part of the ocean that receives some level of protection under law, protecting about one percent of the global ocean.

Offshore wind

Offshore wind energy generates electricity through wind farms along inshore water areas such as lakes, fjords and sheltered coastal areas, as well as deeper-water areas.

Seafloor mining

The ocean contains a complex combination of processes that sometimes result in commercially viable forms of a wide range of minerals.

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