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Harvesting oysters in the Gulf of Mexico Photo: Spike Johnson, Inside Climate News
Warming ocean temperatures are causing massive changes for fishermen, some of which may force them out of business, according to several recent stories examining the impacts of climate change on the fishing industry. Various valuable fish species all around the U.S. and the globe, from Alaska to the Gulf of Mexico to the North Atlantic, are shifting to the north to avoid warmer waters and also are being impacted by new threats caused by ocean warming and acidification.
The Wall Street Journal chronicled the increasing challenges for the crews of the fishing vessel Oracle that catches halibut in the Deadliest Catch waters of the Bering Sea off Alaska. This past fall, the Oracle twice sailed 800 miles north from the seaport of Dutch Harbor in the Aleutian Islands, before finding the halibut that a decade ago lived several hundred miles closer to home. Each voyage took twice as long and yielded half as many fish.
As Inside Climate News explained, “From cheap food imports to hurricanes fueled by a warming planet, these systems support, or strain, the tapestry of what it takes to get seafood to the dinner plates of diners.” However, not everyone is a loser in this warming scenario — the Wall Street Journal describes how “[o]ff Rhode Island, newly booming fisheries include not just black sea bass but also squid and Jonah crab, an edible species with big, dark-brown claws.”
Why This Matters: Warming waters that shift fish populations make a barely viable business downright impossible for many small and medium-sized fishing operations. Not to mention the additional fuel and time it takes to chase fewer fish, that are now found farther from ports. Watching this play out is painful in U.S. fishing communities, but for many parts of the world, it could become a real food security crisis. The U.S. government currently is very lethargic in changing its fisheries management schemes even as the evidence of shifting fish populations grows. Given the challenges of climate change, a more engaged approach to fisheries management that takes climate change into account is needed. It will benefit the fishermen and the fish populations as well.
Tatiana Schlossberg reports for The Washington Post about the potential of seaweed to dramatically reduce methane emissions from cows. It turns out that Asparagopsis taxiformis and Asparagopsis armata — two species of crimson submarine grass — can reduce those emissions by 98% when just a small amount is added to their food. Now several companies are working […]
ABC News reports that there is a creeping underground invasion of our coasts, and it is moving inland much faster than had been previously thought, according to new research funded by the National Science Foundation. The stealth invader? Saltwater, which is infiltrating our coastal communities and creating unseen risks well in advance of the surface floods that drown our homes and businesses.
Why this Matters: This problem will become more and more common as climate change continues, causing widespread displacement across the world.
by Amy Lupica, ODP Contributing Writer According to a 2020 U.N. environmental report, seagrass “prairies” play a massive role in the health of the world’s oceans and if nothing is done to stop their decline, the world will face serious consequences. Seagrasses support rich biodiversity that sustains a whopping 20% of the world’s fisheries, and […]
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