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Lecture Informs Public of Long Island’s Coastal Ills, Solutions

NCCOS-funded researcher Dr. Christopher Gobler and his students recently reported on the nearly complete collapse of hard clam fisheries in Great South Bay and bay scallop fisheries off the East End of Long Island due to annually occurring harmful algal blooms, hypoxia, and acidification. The team discovered excess nitrogen entering groundwater from septic tanks and […]

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Some Coastal Fish May be Able to Adapt to an Acidifying Environment

A new study shows that some coastal fish may be able to condition their offspring to tolerate seasonally acidifying environments, a result never shown before in wild fish populations. Researchers funded by NCCOS and NOAA’s Ocean Acidification Program sampled a wild, spawning population of Atlantic silversides, then combined this information with carbon dioxide exposure experiments […]

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NOAA Data Support Groundwater Protection in Marshall Islands

Scientists from the National Centers for Coastal Ocean Science (NCCOS) and the Coastal Services Center recently recorded underwater video and collected sonar data off Kwajalein Atoll in the Republic of the Marshall Islands to produce bathymetry estimates and support mapping of coral reef communities in the region. Additionally, NCCOS will be using these data to […]

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Spring Flood Outlook Has Implications for Gulf of Mexico and Chesapeake Bay Hypoxia

The NOAA 2014 U.S. Spring Flood Risk Assessment provides an important first look at some of the factors that influence summer hypoxia (low dissolved oxygen) in the Gulf of Mexico and the Chesapeake Bay. This year’s predicted elevated flood risk in the Upper Midwest and the Ohio River Valley may result in a larger hypoxic […]

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Chesapeake Bay Dead Zones Show Marine Worm Species Shifts

A recent NCCOS-sponsored study conducted by the University of Maryland’s Center for Environmental Science has found a hypoxia-induced shift in marine worm communities in Chesapeake Bay to ones made up of species that are extremely adaptable to stressful conditions like hypoxia (low dissolved oxygen). The team also found that the magnitude of the marine worm […]

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Marine Shellfish Get a ‘One-Two Punch’ from Acidification and Low Oxygen

Recent research has shown that ocean acidification and low oxygen interact to harm early life stages of bay scallops (Argopecten irradians) and hard clams (Mercenaria mercenaria). The study, conducted by Stony Brook University and sponsored by NCCOS and NOAA’s Ocean Acidification Program, found that the combined effects of low pH (high acidity) and low oxygen […]

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Environmental Conditions Can Influence Development of Dermo Disease in Oysters

A recent NCCOS-sponsored study by the Smithsonian Institution showed that long-term exposure to daily fluctuations of hypoxia (low dissolved oxygen) increased Dermo disease (Perkinsus marinus) infection in previously uninfected eastern oysters. Surprisingly, daily-cycling pH (a measure of acidity) did not affect Dermo disease infection levels in conjunction with daily-cycling hypoxia or with continuous normal oxygen […]

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Ocean Sciences Meeting Highlights Results of Sponsored Research

The 2014 Ocean Sciences Meeting showcased the reach and extent of research sponsored by NCCOS, including coral reefs, harmful algal blooms, hypoxia, applying research to management solutions, and integrated ecosystem assessments. NCCOS staff and sponsored research scientists gave over 25 oral and poster presentations and co-chaired a special session on mapping, monitoring, and managing mesophotic […]

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