The Weekly Dive Vol. 67


Dive into the latest edition of The Weekly Dive, where we bring you the big ocean news!


Gulf oil spill aftermath: species vital to fishing industry struggle; communities’ mental health should be considered. As effects continue to unfold, research shows oil residue is causing defects in killifish, a species low in the food chain and critical to the seafood industry.  Researchers advocate taking stronger steps to address the human impact of such tragedies in affected communities. [The Los Angeles Times; The Huffington Post]


Coral reefs in peril but not beyond saving. New research has indicated that coral reefs are at risk of collapse, yet they can still be preserved - though local and global action will be necessary to do so. [Science Daily] 


Hawaii monk seal killings a mystery. As the range of endangered monk seals expands again among the Hawaiian Islands, they’ve become embroiled in a sea of complex issues, and are seen by some local fishermen as a rival for resources. The intense controversy over their protection has manifested itself in a string of killings. [The New York Times]


Climate change will cause extinctions by eliminating habitat. Atmospheric carbon concentrations reached 400 parts per million, the highest they’ve been in at least 800,000 years. New research shows the resulting changing climate will cause a reduction in suitable habitat for many species, and therefore lead to extinctions. [Time]


Acidification: oyster reefs may buffer effects; Arctic Ocean seeing rapid change. Oyster reefs in Chesapeake Bay have been severely depleted, and their return could (among other benefits) help ameliorate effects of ocean acidification. Research shows the Arctic could be especially susceptible to increasing acidity, the effects of which are still largely unknown. [Science Daily; BBC]


Overfishing implicated in jelly population booms. A study compared two ecosystems on the western coast of Africa – one where small oceanic fish were depleted, and one where fisheries were well managed – and uncovered a vicious cycle of overfishing promoting the proliferation of jellies that can further reduce fish. [Science Daily]
 

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