The Aquatic Commons is a thematic digital repository covering the natural marine, estuarine /brackish and fresh water environments . It includes all aspects of the science, technology, management and conservation of these environments, their organisms and resources, and the economic, sociological and legal aspects.
Subject = Conservation
Mostrando recursos 1 - 20 de 1.007
Palmyra Atoll coral reef habitat mapping completion report
The United States Coral Reef Task Force (USCRTF) was established in 1998 by Presidential Executive Order 13089 to lead U.S. efforts to preserve and protect coral reef ecosystems. Current, accurate, and consistent maps greatly enhance efforts to preserve and manage coral reef ecosystems. With comprehensive maps and habitat assessments, coral reef managers can be more effective in designing and implementing a variety of conservation measures, including:
• Long-term monitoring programs with accurate baselines from which to track changes;
• Place-based conservation measures such as marine protected areas (MPAs); and
• Targeted research to better understand the oceanographic and ecological processes affecting coral reef...
Integrating remote sensing products and GIS tools to support marine spatial management in West Hawai'i - Wedding , Lisa M.; Gibson, Barbara A.; Walsh, William J.; Battista, Tim A.
Marine protected areas (MPAs) represent a form of spatial management, and geospatial information on living marine resources and associated habitat is extremely important to support best management practices in a spatially discrete MPA. Benthic habitat maps provide georeferenced information on the geomorphic structure and biological cover types in the marine environment. This information supports an enhanced understanding of ecosystem function and species habitat utilization patterns. Benthic habitat maps are most useful for marine management and spatial planning purposes when they are created at a scale that is relevant to management actions. We sought to improve the resolution of existing benthic...
Assessment of natural resource conditions in and adjacent to Dry Tortugas National Park - Jeffrey, Christopher F.G.; Hile, Sarah D.; Addison, Christine; Ault, Jerald S.; Currin, Carolyn; Field, Don; Fogarty, Nicole; Luo, Jiangang; McDonough, Vanessa; Morrison, Doug; Piniak, Greg; Ransibrahmanakul, Varis; Smith, Steve G; Viehman, Shay
This project characterized and assessed the condition of coastal water resources in the Dry Tortugas National Park (DRTO) located in the Florida Keys. The goal of the assessment was to: (1) identify the state of knowledge of natural resources that exist within the DRTO, (2) summarize the state of knowledge about natural and anthropogenic stressors and threats that affected these resources, and (3) describe strategies being implemented by DRTO managers to meet their resource management goals.
The park, located in the Straits of Florida 113 km (70 miles) west of Key West, is relatively small (269 square kilometers) with seven small...
Ecological Condition of Coastal Ocean Waters within Stellwagen Bank National Marine Sanctuary: 2008 - Balthis, W. Leonard; Hyland, Jeffrey L.; Cooksey, Cynthia; Fulton, Michael H.; Wirth, Edward F.; Cobb, Donald; Wiley, David N.
In June 2008, the NOAA National Ocean Service (NOS), in conjunction with the EPA National Health and Environmental Effects Laboratory (NHEERL), conducted an assessment of the status of ecological condition of soft-bottom habitat and overlying waters within the boundaries of Stellwagen Bank National Marine Sanctuary (SBNMS). The sanctuary lies approximately 20 nautical miles east of Boston, MA in the southwest Gulf of Maine between Cape Ann and Cape Cod and encompassing 638 square nautical miles (2,181 km2). A total of 30 stations were targeted for sampling using standard methods and indicators applied in prior NOAA coastal
studies and EPA’s Environmental Monitoring...
National Centers for Coastal Ocean Science (NCCOS) research highlights in the Chesapeake Bay
The Chesapeake Bay is the largest estuary in the
United States. It is a unique and valuable national treasure
because of its ecological, recreational, economic
and cultural benefits. The problems facing the Bay are
well known and extensively documented, and are largely
related to human uses of the watershed and resources
within the Bay. Over the past several decades as the
origins of the Chesapeake’s problems became clear, citizens
groups and Federal, State, and local governments
have entered into agreements and worked together to
restore the Bay’s productivity and ecological health.
In May 2010, President Barack Obama signed Executive
Order number 13508 that tasked a team of Federal
agencies to develop a way...
An integrated biogeographic assessment of reef fish populations and fisheries in Dry Tortugas: Effects of No-take Reserves - Jeffrey, Christopher F. G.; Leeworthy, Vernon R.; Monaco, Mark E.; Piniak, Greg; Fonseca , Mark
The Tortugas Integrated Biogeographic Assessment presents a unique analysis of demographic changes in living resource populations, as well as societal and socioeconomic benefits that resulted from the Tortugas Ecological Reserves during the first five years after their implementation. In 2001, state and federal agencies established two no-take reserves within the region as part of the Florida Keys National Marine Sanctuary. The northern reserve (Tortugas Ecological Reserve North) was established adjacent to the Dry
Tortugas National Park, which was first declared a national monument in 1935. The reserves were designed to protect a healthy coral reef ecosystem that supports diverse faunal assemblages...
Mapping reef fish and the seascape: using acoustics and spatial modeling to guide coastal management - Costa, Bryan; Taylor, J. Christopher; Kracker, Laura; Battista, Tim; Pittman, Simon J.
Reef fish distributions are patchy in time and space with some coral reef habitats supporting higher densities (i.e., aggregations) of fish than others. Identifying and quantifying fish aggregations (particularly during spawning events) are often top priorities for coastal managers. However, the rapid mapping of these aggregations using conventional survey methods (e.g., non-technical SCUBA diving and remotely operated cameras) are limited by depth, visibility and time. Acoustic sensors (i.e., splitbeam and multibeam echosounders) are not constrained by these same limitations, and were used to concurrently map and quantify the location, density and size of reef fish along with seafloor structure in...
Modeling seabird group size: implications for ecological impact assessments - Rypkema, Diana; Zipkin, Elise F.; O'Connell, Allan F.; Sussman, Allison; Wimer, Mark
The purpose of this project is to model seabird flock size data to provide recommendations to the Bureau of Ocean and Energy Management for offshore wind turbine placement. Our hypothesis is that ecological characteristics influence which statistical distribution will provide the best fit to
seabird flock size data. To test this, seabird species can be grouped based on shared ecological traits, such as foraging mechanism or diet.
Marine and estuarine ecosystem and habitat classification - Allee, Rebecca J.; Dethier, Megan; Brown, Dail; Deegan, Linda; Ford, R. Glenn; Hourigan, Thomas F.; Maragos, Jim; Schoch, Carl; Sealey, Kathleen; Twilley, Robert; Weinstein, Michael P.; Yoklavich, Mary
The Ecological Society of America and NOAA's Offices of Habitat Conservation and Protected Resources sponsored a workshop to develop a national marine and estuarine ecosystem classification system. Among the 22 people involved were scientists who had developed various regional classification systems and managers from NOAA and other federal agencies who might ultimately use this system for conservation and management. The objectives were to: (1) review existing global and regional classification systems; (2) develop the framework of a national classification system; and (3) propose a plan to expand the framework into a comprehensive classification system. Although there has been progress in...
The ecological condition of estuaries in the Gulf of Mexico
This document is intended for use by scientists and other citizens concerned with the ecological condition of estuaries, as well as by managers and lawmakers interested in the sustained use of estuaries for commercial and recreational purposes. It also addresses public concerns about the aesthetic quality of coastal areas vital to tourism and recreation. By producing this report on the ecological condition of estuaries in the Gulf of Mexico, we have taken one step in assessing the health of this environmental resource. We have produced an environmental report card to be used as a guide in the evaluation of management...
A study of water quality in Baltimore Harbor - Garland, Chesley F.
Baltimore Harbor is polluted by discharge of sewage and industrial wastes into tributary streams and peripheral waters. The Harbor is used extensively for navigation, industrial water supply, and recreation as well as for waste disposal. The degree of pollution varies from negligible in the principal fairway to severe in the innermost sections. Private industry discharges several hundred tons of acid materials daily and is also the principal source of organic pollution.
Report of Chesapeake Biological Laboratory, 1937 - Truitt, R.V.
The Chesapeake Biological Laboratory is a research and study center founded to accelerate the acquisition of knowledge through the gathering and dissemination of facts to the end that there may be a fuller appreciation of nature.
The Effects of coral bleaching in the northern Caribbean and western Atlantic - Jones, Loureene; Acolado, P.; Cala, Y.; Cobi Án, D.; Coelho, V.; Hernández, A.; Jones, Ross J; Mallela, Jennie; Manfrino, C.
Jones, L., Acolado, P., Cala, Y., Cobi Án, D., Coelho, V., Hernandez, A., Jones, R., Mallela, J., and Manfrino, C., 2008, The Effects of Coral Bleaching in the Northern Caribbean and Western Atlantic, Chapter 7:73- 84, in Wilkinson, C., Souter, D., (eds.), Status of Caribbean Coral Reefs after Bleaching and Hurricanes in 2005, Global Coral Reef Monitoring Network, Townsville, Australia, 152pp.
A study of the crab pot as a fishing gear - Davis, Charles C.
The crab pot as a fishing gear was introduced in Maryland waters, following some years of greatly expanded use in Virginia, during the 1939 season, and was widely used during 1940. The 1941 session of the Maryland Legislature, however, illegalized the crab pot. Since that time the device has been given up almost entirely by Maryland fishermen, its attempted use in a commercial way having persisted in diminishing numbers in only one region of the state.
Report of the Workshop on Blue Crab Stock Dynamics in Chesapeake Bay, December 13-15, 1982, Chesapeake Biological Laboratory
This workshop was convened to begin building a foundation of understanding for developing and evaluating proposed measures for the rational management of the blue crab fishery in Chesapeake Bay. Our goal was to generate a summary of knowledge of blue crab stock dynamics. Specifically, we intended to address, and hoped to estimate, the basic parameters of an exploited stock - growth, mortality, natality, migration rates, sex ratios and abundance. In one sense these objectives were simply a means for organizing our discussions. A second objective was to compile at the workshop pertinent data held by the major research institutions on...