1. Mass Extinction Could Happen Within Decades

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2. Certain Fish Species Most Vulnerable to Climate Change
A new study looked at the data for 1,074 marine species and concluded that 294 species are at risk (by 2050) due to climate change. The worst off are the “Eastern Australian salmon, yellowbar angelfish, toli shad, sohal surgeonfish and spotted grouper. The researchers created a database to highlight the fish most vulnerable, in the long-term, of those important to fisheries worldwide.
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3. Plastic Chunks Found on Remote Arctic Ice2. Certain Fish Species Most Vulnerable to Climate Change

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A recent study has shown that nanoplastics accumulate in fishes’ brains, meaning that the nanoplastics can cross the blood-brain barrier. Fish affected by nanoplastic show behavioral disorders such as eating more slowly and exploring around them less. Animal plankton die when exposed to nanoplastics but are unaffected by larger pieces of plastic. "It is important to study how plastics affect ecosystems and that nanoplastic particles likely have a more dangerous impact on aquatic ecosystems than larger pieces of plastics," says researcher Tommy Cedervall.
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5. Dolphins As Sentinels of Ocean Health

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6. Sea Turtle Populations Bouncing Back Worldwide
Most sea turtle populations around the world are on the rise. This is good news, because six of seven species are still listed by the IUCN as vulnerable, endangered or critically endangered. Some populations are declining, like leatherback sea turtles in the Eastern and Western Pacific. Conservation efforts to protect beaches and regulate fishing, and the establishment of marine protected areas, have significantly helped sea turtle populations rebound.
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Sea Save Foundation is committed to raising awareness of marine conservation. The Week in Review is a team effort produced by the Sea Save staff to provide a weekly summary of the latest in marine research, policy, and news.