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Aquatic Commons (28.304 recursos)
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 1.011

1. Resiliencia en crestas de arrecifes coralinos del este del golfo de Batabanó, Cuba, y factores determinantes probables - Alcolado, Pedro M.; Caballero-Aragón, Hansel; Lara, Ariagna; Rey-Villiers, Néstor; Arriaza, Liliam; Lugioyo, Gladys M.; Alcolado-Prieto, Pedro; Castellanos, Susel; Perera, Susana; Rodríguez-García, Alain
RESUMEN Se comparó el grado de resiliencia de seis crestas arrecifales del este del golfo de Batabanó, Cuba. Tres fueron del norte del golfo de Cazones (Tramo Norte) y las restantes, del oeste de Cayo Largo (Tramo Sur). Las del primer tramo fueron las de faro Cazones, Norte de la cresta de cayo Diego Pérez y de faro Diego Pérez. Las otras tres fueron las de cayo Rico, arrecifes Los Ballenatos y arrecifes Hijos de Los Ballenatos. Se emplearon los indicadores biológicos del Protocolo AGRRA. El Tramo Norte presentó las crestas más resilientes, sobre todo la de faro Cazones. Las del...

2. Programa Jornada Científica Infantil XIX, abril 2014, "Por la mejor protección de nuestros mares y costas"
Abarca los trabajos que se presentan durante los 3 días que dura el evento infantil.

3. Estado de conservación de la ictiofauna arrecifal en sitios de buceo turístico de cuatro regiones del Archipiélago Sabana-Camagüey, Cuba. - Lara-Lorenzo, Ariagna; García-Rodríguez, Alain; Chevalier-Monteagudo, Pedro; Salvat-Torres, Héctor; Claro-Madruga, Rodolfo
Los peces constituyen uno de los atractivos principales en los arrecifes coralinos para el buceo turístico, por lo cual resulta necesario monitorear su abundancia y valores estéticos. El objetivo de esta investigación fue evaluar el estado de conservación de las asociaciones de peces arrecifales en cuatro de los principales polos turísticos del Archipiélago Sabana-Camagüey, Cuba en el año 2010. Se muestrearon 23 sitios de buceo turísticos en áreas adyacentes a las regiones de Varadero (5 sitios), cayos de Villa Clara (6 sitios), Cayo Coco (6 sitios) y Santa Lucia (6 sitios). En cada uno de ellos se realizaron seis réplicas de censos visuales de todas las...

4. Boundary options for a research area within Gray's Reef National Marine Sanctuary - Kendall, Matthew S.; Eschelbach, Katherine A.
Gray’s Reef National Marine Sanctuary (GRNMS) is exploring the concept of a research area (RA) within its boundaries. The idea of a research area was first suggested in public scoping meetings held prior to the review of the Gray’s Reef Management Plan. An RA is a region specifically designed for conducting controlled scientific studies in the absence of confounding factors. As a result, a multidisciplinary group gathered by GRNMS was convened to consider the issue. This Research Area Working Group (RAWG) requested that a suite of analyses be conducted to evaluate the issue quantitatively. To meet this need, a novel...

5. 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...

6. 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...

7. 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...

8. 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...

9. 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...

10. 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...

11. 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...

12. Statistical guidelines for sampling marine avian populations - Zipkin, Elise F.; Kinlan, Brian; Sussman, Allison; Wimer, Mark; O'Connell, Allan F.

13. Statistical analysis to support guidelines for marine avian sampling - presentation/report to BOEM, Oct. 26, 2012 - Kinlan, Brain; Zipkin, Elise F.; O'Connell, Allan F.; Sussman, Allison; Wimer, Mark; Caldow, Chris

14. 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.

15. 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...

16. 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...

17. Soundings: the Newsletter of the Monterey Bay Chapter of the American Cetacean Society. 2013
Issues January - November/December 2013. (PDF contains 96 pages)

18. 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.

19. Report of Chesapeake Biological Laboratory, 1938 - Truitt, R.V.
Substantial progress was made in 1938 both in respect to additions made in the physical plant and to the problems effectively pursued by an energetic staff.

20. 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.

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