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Predicting Ocean Acidification and Hypoxia with West Coast Stakeholders

The California Current System (CCS) is among the most biologically productive regions of the world’s oceans, but upwelling of coastal waters creates vulnerability to ocean acidification and hypoxia (OAH), which scientists observed in recent decades. A project funded through the NOAA Ocean Acidification Program and NCCOS in collaboration with the California Ocean Protection Council is […]

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Together Hypoxia and Ocean Acidification Equal a Double Whammy for Marine Life

Conditions resulting in low dissolved oxygen (DO) in marine systems, also known as hypoxia, are a common occurrence in oceans around the world. Ocean acidification (OA), which results in lower pH, is a newer phenomenon, but often co-occurs with hypoxia due to elevated water temperatures and accelerated nutrient delivery from land. A new review of the effects of hypoxia […]

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Models Highlight Benefits of Aquaculture in Long Island Sound

Shellfish bioextraction has the potential to improve water quality and boost the economy Declining water quality from excess nutrient inputs, called eutrophication, is an issue of concern in estuaries and coastal waters around the world. These nutrients enter near-shore waters from land, typically from urban stormwater and fertilizer runoff and treated sewage outputs. The environmental […]

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Acidification Increases Sensitivity to Hypoxia in Important Forage Fishes

NCCOS sponsored research focusing on the combined effects of low dissolved oxygen and ocean acidification finds that acidification can increase fish sensitivity to hypoxia. This has important implications for increasing atmospheric carbon dioxide effects on our marine systems and may indicate that official dissolved oxygen regulatory criteria do not protect living resources as intended. Hypoxia, or […]

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Offshore Sewage Release in Southern California Brings Unexpected Result

A scheduled sewage release off Los Angeles provided a unique opportunity to study before and after impacts of massive nutrient injection into coastal waters. Researchers hypothesized large, potentially harmful algal blooms (HABs), would result from the discharge. The sewage release was extensively studied by NCCOS scientists, sponsored researchers, and partner agencies, and the results were not […]

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NCCOS Projects at the Forefront of Numerical Estuarine Modeling

Scientists’ use of simulation models has increased during the past several decades as a widely accepted tool for investigations into estuarine dynamics. A recently published scientific review paper, authored by NCCOS-sponsored scientists, outlines the progress and accomplishments of coupled hydrodynamic-ecological estuarine modeling. Many NCCOS-sponsored foundational modeling studies are featured in the review paper. Findings show that while most […]

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2016 Ocean Sciences Meeting Showcases NCCOS Research

The 2016 Ocean Sciences Meeting this past winter featured the research of NCCOS scientists and sponsored principal investigators. Topics included ocean acidification, hypoxia, blue carbon, and harmful algal blooms. NCCOS scientists and sponsored researchers gave 24 oral and poster presentations and co-chaired six special sessions. The biennial Ocean Sciences Meeting consists of a diverse program covering […]

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