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News

Gulf of Mexico ‘Dead Zone’ Largest Ever Measured

Scientists have determined this year’s Gulf of Mexico “dead zone,” an area of low oxygen that can kill fish and marine life, is 8,776 square miles, an area about the ...
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Hypoxia Leads to Atlantic Croaker Decline in Gulf ...

Distribution of bottom-water dissolved oxygen July 28-August 3, 2015 (west of the Mississippi River delta). Black line indicates dissolved oxygen level of 2 mg/L. (Data: Nancy R. Rabalais, LUMCON, and ...
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Southeast Deep Coral Initiative: NOAA Multi-Year E...

A new NOAA report outlines the objectives and activities of the Southeast Deep Coral Initiative (SEDCI). The initiative is a coordinated, cross-line office effort that includes partners from NOAA Fisheries, ...
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A Primer to Living Shorelines Published

A synthesis of recent thinking and results from practitioners and researchers of Living Shorelines just hit the stands. " Living Shorelines: The Science and Management of Nature-Based Coastal Protection," details ...
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Hypoxia Effects on Fish and Fisheries in the Gulf ...

Dr. Kim de Mutsert, lead Principal Investigator (PI) for the newly awarded Northern Gulf of Mexico project ' User-driven tools to predict and assess effects of reduced nutrients an hypoxia ...
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Online Tool Explores Sea Level Rise and Coastal Ma...

A new online tool developed by the University of South Carolina, with funding through NCCOS's Ecological Effects of Sea Level Rise program (EESLR), allows users to evaluate scenarios of coastal ...
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Gulf of Mexico Sea Level Rise Tools Delivered to C...

NCCOS staff and their partners held a workshop last month in Alabama to demonstrate and transfer sea level rise tools and data to regional coastal managers. Hosted by the Weeks ...
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Price of Shrimp Impacted by Gulf of Mexico "Dead Z...

The low oxygen conditions slow shrimp growth, leading to fewer and more expensive large shrimp Hypoxic zones are areas in the ocean of such low oxygen concentration that animal life ...
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NOAA Awards $3.4 million to Support Coastal Commun...

NOAA's National Centers for Coastal Ocean Science are awarding over $1.3 million, with an anticipated total of $3.4 million over the next four years, for research that will provide coastal ...
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Another Average "Dead Zone" Predicted for Gulf of ...

Outlook incorporates multiple hypoxia models for the second year Scientists deploy a sensor to collect water samples to test oxygen levels during the 2015 cruise to measure the size of ...
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Data & Publications

Modeling Coastal Hypoxia: Numerical Simulations of Patterns, Controls and Effects of Dissolved Oxygen Dynamics

This book provides a snapshot of representative modeling analyses of coastal hypoxia and its effects. Hypoxia refers to conditions in the water column where dissolved oxygen falls below levels that can support most metazoan marine life (i.e., 2 mg O2 ...
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Modeling River-Induced Phosphorus Limitation in the Context of Coastal Hypoxia

The urban development of coastal areas and the increased use of chemical fertilizers over the last century have led to a worldwide expansion of coastal eutrophication and a significant increase in the occurrence and intensity of human-induced coastal hypoxia. Proportionally, ...
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Modeling the Population Effects of Hypoxia on Atlantic Croaker (Micropogonias undulatus) in the Northwestern Gulf of Mexico: Part 1 - Model Description and Idealized Hypoxia

We developed a spatially explicit, individual-based model to analyze how hypoxia effects on reproduction, growth, and mortality of Atlantic croaker in the northwestern Gulf of Mexico lead to population-level responses. The model follows the hourly growth, mortality, reproduction, and movement ...
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Modeling the Population Effects of Hypoxia on Atlantic Croaker (Micropogonias undulatus) in the Northwestern Gulf of Mexico: Part 2 - Realistic Hypoxia and Eutrophication

Quantifying the population-level effects of hypoxia on coastal fish species has been challenging. In the companion paper (part 1), we described an individual-based population model (IBM) for Atlantic croaker in the northwestern Gulf of Mexico (NWGOM) designed to quantify the ...
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Molecular Characterization and Hypoxia-Induced Upregulation of Neuronal Nitric Oxide Synthase in Atlantic Croaker: Reversal by Antioxidant and Estrogen Treatments

Neuronal nitric oxide synthase (nNOS) catalyzes production of nitric oxide in vertebrate brains. Recent findings indicate that endothelial NOS and reactive oxygen species (ROS) are significantly increased during hypoxic stress and are modulated by antioxidants. However, the influence of antioxidants ...
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Multivariable statistical regression models of the areal extent of hypoxia over the Texas-Louisiana continental shelf

Observations of the areal extent of seasonal hypoxia over the Texas–Louisiana continental shelf from 1985 to 2010 are correlated with a variety of physical and biogeochemical forcing mechanisms. Significant correlation is found between hypoxic area and both nitrogen load (r2 ...
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N and P as ultimate and proximate limiting nutrients in the northern Gulf of Mexico: Implications for hypoxia reduction strategies

The occurrence of hypoxia in coastal oceans is a long-standing and growing problem worldwide and is clearly linked to anthropogenic nutrient inputs. While the need for reducing anthropogenic nutrient loads is generally accepted, it is costly and thus requires scientifically ...
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National Centers for Coastal Ocean Science (NCCOS) long-term monitoring: Regional Ecological Assessments and National Benthic Inventory (NCEI Accession 0202842)

The NCCOS Regional Ecological Assessments (REA) and NOAA National Benthic Inventory (NBI) include observations of water quality, sediment quality, fish and shellfish tissue chemical contaminants, and benthic infaunal abundance obtained from studies conducted since 1991 by NOAA and partnering institutions ...
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National Coastal Condition Report IV

This document contains the results and analysis from the fourth national coastal assessment, published in 2012 ...
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NCCOS Long-term Monitoring Project: Regional Ecological Assessments and National Benthic Inventory

NOAA's National Centers for Coastal Ocean Science (NCCOS) works in partnership with other federal agencies and coastal states to conduct assessments of ecological condition and potential stressor impacts throughout our Nation’s estuaries, coastal-ocean waters, and NOAA protected areas; carry out ...
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