Data and Reports

Explore our library of NCCOS Technical Memos and various data sets. Filter by the type of publication, research category, region or contact.

The Mesophotic, Coral Reef-Associated, Marine Algal Flora of Puerto Rico, Caribbean Sea

Deepwater open-circuit scuba, dredging, submersible, and technical mixed-gas (closed-circuit) rebreather diving collections of marine benthic algae made over the last approximately 30 years in Puerto Rico are summarized in this account. In total, 186 taxa (166 identified to species) comprising 60% Rhodophyta, 11% Phaeophyceae, and 29% Chlorophyta are reported from ...
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The metabolism of aquatic ecosystems: History, applications, and future challenges

Measurements of the production and consumption of organic material have been a focus of aquatic science for more than 80 years. Over the last century, a variety of approaches have been developed and employed for measuring rates of gross primary production (Pg), respiration (R), and net ecosystem production (Pn = ...
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The New Fisheries Economics: Incentives Across Many Margins

New research in fisheries economics addresses incentives across many margins. These margins include within-season effects, incentives to harvest different ages and sizes of fish, responses to ecological disturbances, spatial choices, and multispecies interactions. Even developments in global seafood markets are relevant for understanding contemporary fisheries management. What connects this diverse ...
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The perfect storm: Match-mismatch of bio-physical events drives larval reef fish connectivity between Pulley Ridge mesophotic reef and the Florida Keys

Mesophotic coral reef ecosystems are remote from coastal stressors, but are still vulnerable to over-exploitation, and remain mostly unprotected. They may be the key to coral reefs resilience, yet little is known about the pattern of larval subsidies from deeper to shallower coral reef habitats. Here we use a biophysical ...
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The Potential Consequences of Climate Variability and Change on Coastal Areas and Marine Resources

The issues and problems associated with coastal and marine resources, and their current or potential relationship to climate, have continued to receive a high level of national and international attention. Headlines draw attention to subjects ranging from disastrous hurricanes and one of the strongest El Niño events in recent history, ...
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The Relationship Between Shoreline Armoring and Adjacent Submerged Aquatic Vegetation in Chesapeake Bay and Nearby Atlantic Coastal Bays

Shoreline armoring is an ancient and globally used engineering strategy to prevent shoreline erosion along marine, estuarine, and freshwater coastlines. Armoring alters the land water interface and has the potential to affect nearshore submerged aquatic vegetation (SAV) by changing nearshore hydrology, morphology, water clarity, and sediment composition. We quantified the ...
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The response of runoff and sediment loading in the Apalachicola River, Florida to climate and land use land cover change

The response of runoff and sediment loading in the Apalachicola River under projected climate change scenarios and land use land cover (LULC) change is evaluated. A hydrologic model using the Soil and Water Assessment Tool was developed for the Apalachicola region to simulate daily runoff and sediment load under present ...
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The role of a PSP-producing Alexandrium bloom in an unprecedented diamondback terrapin (Malaclemys terrapin) mortality event in Flanders Bay, New York, USA

Diamondback terrapins (Malaclemys terrapin) are a threatened or endangered species in much of their range along the U.S. Atlantic and Gulf coasts. Over an approximately three-week period from late April to mid-May 2015, hundreds of adult diamondback terrapins were found dead on the shores of Flanders Bay, Long Island, New ...
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The role of winter-spring wind and other factors controlling summer hypoxia in Chesapeake Bay

We examined the processes influencing summer hypoxia in the mainstem portion of Chesapeake Bay. The analysis was based on the Chesapeake Bay Monitoring Program data collected between 1985 and 2007. Self-organizing map (SOM) analysis indicates that bottom water dissolved oxygen (DO) starts to be depleted in the upper mesohaline area ...
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The Southeast Bering Sea Ecosystem: Implications for Marine Resource Management

Southeast Bering Sea Carrying Capacity (SEBSCC, 1996–2002) was a NOAA Coastal Ocean Program project that investigated the marine ecosystem of the southeastern Bering Sea. SEBSCC was co-managed by the University of Alaska Fairbanks, NOAA Alaska Fisheries Science Center, and NOAA Pacific Marine Environmental Laboratory. Project goals were to understand the ...
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The State of Coral Reef Ecosystems of the United States and Pacific Freely Associated States: 2005

The purpose of this report is to provide an assessment of the current condition of coral reef ecosystems in U.S. jurisdictions, including the U.S. Virgin Islands, Puerto Rico, Navassa, Florida, Flower Garden Banks and other banks of the Gulf of Mexico, Hawaii, the Northwestern Hawaiian Islands, American Samoa, the Pacific ...
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The State of Coral Reef Ecosystems of the United States and Pacific Freely Associated States: 2008

This report is the third in an ongoing series of assessments of the condition of coral reef ecosystems in the United States and Pacific Freely Associated states, and the second report to focus specifically on summarizing the results of coral reef ecosystem monitoring activities carried out by federal, state, territorial, ...
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The State of Deep-Sea Coral and Sponge Ecosystems of the United States

Since NOAA published the 2007 State of Deep Coral Ecosystems of the United States report, many deep-sea coral research and management efforts have taken place. This publication presents these exciting advances. Like the 2007 report, we have regional chapters describing the distribution and ecology of the deep-sea coral ecosystems, with ...
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The use of large artificial reefs to enhance fish populations at different depths in the Florida Keys

This study showed that large prefabricated units and concrete rubble patch reefs, placed as artificial marine habitats on sand bottom, greatly enhance the abundance, diversity, and biomass of fish in an area. Densities of individuals and biomass were found considerably higher at artificial reefs than at nearby, natural, bank reefs, ...
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Threats to mesophotic coral ecosystems and management options

This report is based on one of the recommendations from the 2014 United Nations Environment Programme (UNEP) “Scientific Workshop on Coral Reef Resilience in Planning and Decision-support Frameworks” to address the question can intermediate depth reefs serve as “lifeboats” for increasingly stressed coral reef ecosystems? This question was addressed by ...
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Tidal hydrodynamics under future sea level rise and coastal morphology in the Northern Gulf of Mexico

This study examines the integrated influence of sea level rise (SLR) and future morphology on tidal hydrodynamics along the Northern Gulf of Mexico (NGOM) coast including seven embayments and three ecologically and economically significant estuaries. A large-domain hydrodynamic model was used to simulate astronomic tides for present and future conditions ...
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Transgenerational exposure of North Atlantic bivalves to ocean acidification renders offspring more vulnerable to low pH and additional stressors

While early life-stage marine bivalves are vulnerable to ocean acidification, effects over successive generations are poorly characterized. The objective of this work was to assess the transgenerational efects of ocean acidifcation on two species of North Atlantic bivalve shellfsh, Mercenaria mercenaria and Argopecten irradians. Adults of both species were subjected ...
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Transport pathways of marine larvae around the Mariana archipelago

The present study seeks to further our understanding of ocean currents in and around the Mariana archipelago and their potential influence on larval transport. We combined observational data on ocean currents from satellite-tracked surface drifters with computer simulations of larval dispersal driven by an ocean circulation model to achieve the ...
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Trophic position estimates of marine teleosts using amino acid specific isotopic compounds

The increasing use of trophic position (TP) for assessing and describing ecosystems has resulted in the emergence of novel techniques for accurate and accessible measurements. The strength of amino acid compound specific nitrogen isotopic analysis (AA?CSIA) lies in its ability to determine TP using a single organism, utilizing the isotopic ...
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Two new karlotoxins found in Karlodinium veneficum (strain GM2) from the East China Sea

The dinoflagellate Karlodinium veneficum is a harmful algal bloom species with a worldwide distribution. This small athecate dinoflagellate makes a family of polyketide toxins that are hemolytic, cytotoxic and ichthyotoxic. The first chemical structure for karlotoxins from East China Sea (ECS) is reported here. The two new karlotoxins, namely 4,5-dihydro-KmTx ...
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