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 997
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...
SAMUDRA Report No. 65, July 2013
Sticky issues - An update on the recent SSF guidelines, Forced into slavery- New Zealand, Grabbing oceans- MPAs fail to recognize human-rights issues, Getting rights wrong- GPO ignores the voices of SSF people, Smoking kilns- artisan fishers on the map, Depending on mangroves- Vietnam, Statement made at the GDF on work in fishing convention, fishy partnership- proposed GPO, Champion for fishers - Rolf Willmann
Yemaya, No.43, July 2013
South Africa- Shifting livelihoods, Viet Nam-Strengthening livelihoods, Chile - gains and challenges, Uganda- making changes possible, Maritza Mena from Costa Rica, Ground-breaking gender indicators, You tube resources
Breeding populations of seabirds in California, 1989-1991. Volume I - population estimates - Carter, Harry R.; McChesney, Gerard J.; Jaques, Deborah L.; Strong, Craig S.; Parker, Michael W.; Takekawa, Jean E.; Jory, Deborah L.; Whitworth, Darrell L.
In 1989-1991, the U.S. Fish and Wildlife Service surveyed breeding populations of seabirds on the entire California coast. This study was sponsored by the Minerals Management Service in relation to outer continental shelf oil and gas leasing. At 483 nesting sites (excluding terns and skimmers in southern California), we estimated 643,307 breeding birds of 21 seabird species including: 410 Fork-tailed Storm-petrel (Oceanodroma furcata); 12,551 Leach's Storm-petrel (O. leucorhoa); 7,209 Ashy Storm-petrel (O. homochroa); 274 Black Storm-petrel (O. melania); 11,916 Brown Pelican (Pelecanus occidentalis); 10,037 Double-crested Cormorant (Phalacrocorax auritus); 83,394 Brandt's Cormorant (P. penicillatus); 14,345 Pelagic Cormorant (P. pelagicus); 888 Black...
Monitoring report: sand dune reconstruction and restoration, at the Moss Landing Marine Laboratories
The Plan for Sand Dune Reconstruction and Restoration (and Biological Assessment) at Moss Landing Marine Laboratories (ABA Consultants, April 1, 1992) described reconstruction of dune contours and biological restoration with native dune plants to be carried out over the 8 acre site formerly occupied by the marine labs (prior to the Loma Prieta earthquake of October 1989). The plan called for annual reports in letter form which would present data on plant abundance, a short narrative description of changes on the site, progress towards recovery of the plant community, and assessment of progress based on restoration goals and further steps...
Estudio regional sobre las dimensiones sociales en el manejo de areas marinas protegidas: casos en Costa Rica, Nicaragua, Honduras y Panama - Rivera, Vivienne Solís; Borrás, Marvin Fonseca; Gallardo, Daniela Barguil; Ochoa, Mariela; Castañeda, Edgar; Castillo, Geodisio
Explora la percepción de las personas residentes en las comunidades costeras vinculadas a los espacios marinos protegidos en Honduras, Nicaragua, Costa Rica y Panamá. Profundiza, a partir de estudios de caso y el análisis comparativo, los temas de gobernanza, derechos humanos y distribución justa y equitativa de beneficios derivados de la conservación. Los resultados destacan que los esfuerzos de conservación marina no han logrado establecer puentes que permitan satisfacer las necesidades sociales. Las comunidades han sido excluidas de los procesos de toma de decisiones, y los costos de la conservación han recaído en las pueblos costeros. Se plantean recomendaciones orientadas...
Regional study on social dimensions of MPA practice in Central America: cases studies from Costa Rica, Nicaragua, Honduras and Panama
This research focuses on the social dimensions of marine conservation, and makes an assessment of the experiences of coastal and fi shing communities with regard to the governance of MPAs in Central America, based on case studies from Honduras, Nicaragua, Costa Rica and Panama. It examines the national contexts of the above countries in relation to the governance of MPAs. Furthermore, it analyzes the social impacts of MPAs on coastal communities by gathering the experiences and the voices of the communities and institutions involved, and reflects on how to build bridges in the search for forms and models of conservation...
Fishery-dependent livelihoods, conservation and sustainable use of biodiversity: the case of marine and coastal protected areas in India
The lacunae in fishing-community engagement in the management and governance of marine and coastal protected areas (MCPAs) were discussed in the 2009 Chennai Workshop organized by the International Collective in Support of Fishworkers (ICSF). To continue the discussion, a second, two-day workshop to review existing legal and institutional mechanisms for implemention and monitoring of MCPAs, titled ‘Fishery-dependent Livelihoods, Conservation and Sustainable Use of Biodiversity: The Case of Marine and Coastal Protected Areas in India’, was held in New Delhi during 1-2 March 2012.
The objective was to understand the impact of MCPAs on fishing communities, from an environmental-justice and human-rights perspective,...
Getting it right: incorporating social aspects into MPA planning and implementation
This brochure summarizes a series of case studies done in nine countries—Brazil, India, Indonesia, Mexico, Senegal, South Africa, Spain,Tanzania and Thailand—on the role of communities in the planning and implementation of marine protected areas (MPAs).
The studies demonstrate that communities can be powerful allies in efforts for conservation and management of coastal and marine resources. They also underline the need for systematic attention, capacity building, funding and other resources for effective implementation of Programme Element 2 on governance, participation, equity, and benefit sharing of the Programme of Work on Protected Areas (PoWPA) of the Convention on Biological Diversity (CBD).
A historical review of the shad fisheries of North America - Mansueti, Romeo; Kolb, Haven
A review of the relative productivity and value of the shad fisheries of North America as reflected in recorded commercial catches.
A review of reasons for the decline that are biological and socioeconomic.
Factors that have been held responsible are: pollution; destruction or impairment of spawning and nursery areas; overfishing; hydroelectric and canal dams; natural fluctuations in abundance. Natural catastrophes, parasites, and predators are not considered important in causing the decrease in commercial production. Attempts to rehabilitate the fisheries by various means of stocking artificially-reared fry and pond-reared fingerling shad, appear to have failed in every instance. Introduction of shad...