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Registros recuperados: 78
Primeira ... 1234 ... Última
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The role of the Yala swamp lakes in conservation of Lake Victoria region haplochromine cichlids: evidence from molecular genetic and trophic ecology studies OceanDocs
Abila, R.; Salzburger, W.; Ndonga, M.F.; Owiti, D.O.; Barluenga, M..
Lake Kanyaboli (Kenya), a satellite lake of Lake Victoria, has been suggested as a potential refugium for haplochromine cichlids that have gone extinct in Lake Victoria. We employed mitochondrial DNA and microsatellite DNA molecular markers as well as feeding ecology studies to re- evaluate the evolutionary and ecological significance of Lake Kanyaboli haplochromines. The mitochondrial DNA and microsatellite markers revealed high genetic diversity in the endangered Xystichromis phytophagus and also the presence of mtDNA haplotypes that may have either gone extinct in Lake Victoria or have arisen in situ. Lake Kanyaboli thus acts as a ‘genetic reservoir’ for the Lake Victoria species flock. Gut content analysis revealed six trophic groups among the six...
Tipo: Proceedings Paper Palavras-chave: Tropical fish; Genetics; Swamps; Lakes; Resource conservation; Environment management; Rare resources; Resource management; Trophic relationships; Genetic diversity; Swamps; Inland waters; Water reservoirs; Freshwater lakes; Species extinction; Ecological efficiency; Genetics; Swamps; Lakes; Swamps; Inland waters; Water reservoirs; Species extinction; Resource conservation; Resource management; Http://aims.fao.org/aos/agrovoc/c_3222; Http://aims.fao.org/aos/agrovoc/c_7544; Http://aims.fao.org/aos/agrovoc/c_4160; Http://aims.fao.org/aos/agrovoc/c_7544; Http://aims.fao.org/aos/agrovoc/c_3876; Http://aims.fao.org/aos/agrovoc/c_8324; Http://aims.fao.org/aos/agrovoc/c_17744; Http://aims.fao.org/aos/agrovoc/c_6523; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2006 URL: http://hdl.handle.net/1834/2130
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Distribution of economic benefits from the fisheries of Lake Victoria OceanDocs
Abila, R.O.; Odongkara, K.O.; Onyango, P.O..
The Lake Victoria fishery contributes immensely to the socio-economic development of the riparian states. The East African Community has designated the lake basin as an ‘economic growth zone’, with the potential to develop into a major economic region. The fisheries are vital in creating employment opportunities, mostly rural-based, thereby helping to reduce rural-urban migration. Fish is also a rich source of animal protein for human consumption and provides raw material (fishmeal) for processing animal feeds. The fish industry contributes to GDP and has continued to be an important source of foreign exchange earned from fish exports. Besides, the fish industry contributes to the national and local government revenues through levying of various taxes,...
Tipo: Proceedings Paper Palavras-chave: Fishery economics; Fishery management; Fishery policy; Marketing; Resource management; Socioeconomic aspects; Economic benefits; Trade; Riparian zone; Economic analysis; International policy; Exploitation; Resource development; Freshwater fish; Inland fisheries; Inland water environment; Lake fisheries; Lake fisheries; Fishery management; Marketing; Economic analysis; Resource development; Resource management; Trade; Inland fisheries; Inland water environment; Http://aims.fao.org/aos/agrovoc/c_4159; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_4620; Http://aims.fao.org/aos/agrovoc/c_2469; Http://aims.fao.org/aos/agrovoc/c_28018; Http://aims.fao.org/aos/agrovoc/c_6524; Http://aims.fao.org/aos/agrovoc/c_7848; Http://aims.fao.org/aos/agrovoc/c_3873; Http://aims.fao.org/aos/agrovoc/c_3875.
Ano: 2006 URL: http://hdl.handle.net/1834/2128
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What is the socio-economic value of the wetlands fisheries? The case of Yala Wetland in Kenya OceanDocs
Abila, R.O.; Othina, A..
Wetlands in most parts of the world are under threat of over-exploitation partly because their socio-economic value is not well known. Yala Wetland, the largest freshwater wetland in Kenya, with a large part of it bordering Lake Victoria’s shoreline, faces even greater threats of extinction. This wetland measures about 17,500 ha and is host to a number of indigenous fish species, animals and plants which are exploited by the local communities for subsistence and commercial purposes.There has been pressure to reclaim portions of this wetland for agricultural activity. So far, 2,300 ha has, indeed, been drained for commercial agriculture. Furthermore, it is difficult to control effort in the exploitation of the remaining wetland resources since the...
Tipo: Proceedings Paper Palavras-chave: Wetlands; Inland waters; Overexploitation; Socioeconomic aspects; Fishery resources; Resource management; Water reservoirs; Monitoring systems; Land use; Resource conservation; Environment management; Protected resources; Freshwater lakes; Inland fisheries; Lake fisheries; Wetlands; Inland waters; Overexploitation; Http://aims.fao.org/aos/agrovoc/c_8371; Http://aims.fao.org/aos/agrovoc/c_3876; Http://aims.fao.org/aos/agrovoc/c_28014.
Ano: 2006 URL: http://hdl.handle.net/1834/1493
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Toward increased engagement between academic and indigenous community partners in ecological research Ecology and Society
Adams, Megan S.; Department of Geography, University of Victoria; Raincoast Conservation Foundation; Hakai Beach Institute; megan.s.adams@gmail.com; Carpenter, Jennifer; Heiltsuk Integrated Resource Management Department; jcarpenter2@heiltsuknation.ca; Housty, Jess A.; Qqs Projects Society;; Neasloss, Douglass; Kitasoo/Xai-Xais Integrated Resource Authority; Spirit Bear Research Foundation;; Paquet, Paul C.; Department of Geography, University of Victoria; Raincoast Conservation Foundation; ppaquet@baudoux.ca; Service, Christina; Department of Geography, University of Victoria; Spirit Bear Research Foundation; Hakai Beach Institute; christina.service@gmail.com; Walkus, Jennifer; Wuikinuxv Nation Fisheries;; Darimont, Chris T.; Department of Geography, University of Victoria; Raincoast Conservation Foundation; Hakai Beach Institute; darimont@uvic.ca.
Ecological research, especially work related to conservation and resource management, increasingly involves social dimensions. Concurrently, social systems, composed of human communities that have direct cultural connections to local ecology and place, may draw upon environmental research as a component of knowledge. Such research can corroborate local and traditional ecological knowledge and empower its application. Indigenous communities and their interactions with and management of resources in their traditional territories can provide a model of such social-ecological systems. As decision-making agency is shifted increasingly to indigenous governments in Canada, abundant opportunities exist for applied ecological research at the community level....
Tipo: Peer-Reviewed Synthesis Palavras-chave: Aboriginal; Collaborative research; Community engagement; Ecology; First Nations; Indigenous communities; Natural science; Resource management; Social-ecological systems; Trust.
Ano: 2014
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Coastal Management in the Western Indian Ocean Region: A Capacity Needs OceanDocs
Amaral, M.; Coley, C.; Hale, L.; Kiambo, R.; Francis, J..
Developing capacity in coastal and marine issues of the Western Indian Ocean (WIO) region is a very important activity, given the present growing and projected pressures on the coastal and marine resources. The region’s experience in both knowledge-based, technical and equipment capacity building has been progressively growing. Many large milestones have been reached in this current effort to assess the capacity of the WIO region both in the form of increasing the knowledge base on core competencies of a good coastal manager as well as identifying the capacity-building efforts going on in the region. > Management of coastal and marine issues is critical to ensure a sustainable future in a region where tens of millions of people depend on coastal...
Tipo: Working Paper Palavras-chave: Coastal zone management; Resource management; Environment management.
Ano: 2001 URL: http://hdl.handle.net/1834/112
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Fifteen Weddings and a Funeral: Case Studies and Resilience-based Management Ecology and Society
Anderies, John M; Arizona State University; m.anderies@asu.edu; Walker, Brian H; CSIRO Sustainable Ecosystems; Brian.Walker@csiro.au; Kinzig, Ann P; Arizona State University; Ann.Kinzig@asu.edu.
Tipo: Peer-Reviewed article Palavras-chave: Resilience; Social-ecological systems; Resource management.
Ano: 2006
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Can Resilience be Reconciled with Globalization and the Increasingly Complex Conditions of Resource Degradation in Asian Coastal Regions? Ecology and Society
Armitage, Derek; Wilfrid Laurier University; darmitag@wlu.ca; Johnson, Derek; Centre for Maritime Research; dsjohnson@marecentre.nl.
This paper explores the relationship between resilience and globalization. We are concerned, most importantly, with whether resilience is a suitable conceptual framework for natural resource management in the context of the rapid changes and disruptions that globalization causes in social-ecological systems. Although theoretical in scope, we ground this analysis using our experiences in two Asian coastal areas: Junagadh District in Gujarat State, India and Banawa Selatan, in Central Sulawesi, Indonesia. We present the histories of resource exploitation in the two areas, and we attempt to combine a resilience perspective with close attention to the impact of globalization. Our efforts serve as a basis from which to examine the conceptual and practical...
Tipo: Peer-Reviewed Synthesis Palavras-chave: Globalization; Resilience; Complexity; India; Indonesia; Resource management; Coastal management; Social-ecological system; Sustainability.
Ano: 2006
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Investigación y manejo de praderas de luga roja en la XII Región OceanDocs
Ávila, M.; Cáceres, J.; Núñez, M.; Camus, P.; Pavez, H.; Cortés, H; González, J.; Tapia, C.; Mejías, P.; Cornejo, S.; Romo, H.; Candia, A..
El objetivo del proyecto es desarrollar un plan de manejo del recurso luga roja. Este objetivo se logra a través de los siguientes objetivos específicos: determinar el (los) períodos óptimos de cosecha para las praderas de la XII Región, que permitan maximizar la biomasa obtenida conservando la capacidad productiva del recurso; diseñar y evaluar estrategias de manejo del recurso en la XII Región.
Tipo: Report Palavras-chave: Algae; Biomass; Reproduction; Resource management; Harvesting; Biomass; Algae; Reproduction; Resource management; Harvesting; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_258; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_6524; Http://aims.fao.org/aos/agrovoc/c_3500.
Ano: 2004 URL: http://hdl.handle.net/1834/1736
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Evaluación y manejo de praderas de feofitas en la Provincia de Arauco OceanDocs
Ávila, M.; Cáceres, J.; Núñez, M.; Camus, P.; Romo, H.; Pérez, R..
El objetivo general del proyecto fue evaluar los stocks y proponer alternativas de explotación de las praderas de feofitas (Durvillaea antarctica y Macrocystis pyrifera) de la Provincia de Arauco, VIII Región. Este objetivo se logró a través de los siguientes objetivos específicos: identificar y caracterizar los algares de Durvillaea y Macrocystis de la Provincia de Arauco; determinar el estado poblacional de los algares identificados; analizar alternativas de explotación y acciones de manejo para los algares identificados en la zona de estudio de acuerdo a la realidad local; proponer regímenes de explotación y acciones de manejo, para los algares identificados en la zona de estudio de acuerdo a la realidad local.
Tipo: Report Palavras-chave: Algae; Stock assessment; Exploitation; Resource management; Stock assessment; Algae; Resource management; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_258; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2005 URL: http://hdl.handle.net/1834/1810
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Monitoreo biológico pesquero del recurso erizo en la XII Región (FASE I) OceanDocs
Barahona, N.; Young, Z.; Gálvez, P.; Orensanz, J.M.; Cornejo, S.; Mejías, P.; Miranda, H.; Jerez, G.; Carrasco, J..
El propósito de este proyecto fue diseñar e implementar un sistema de monitoreo biológico-pesquero, geográficamente orientado al levantamiento de información de las actividades extractivas del recurso erizo en la XII Región. Para alcanzar el objetivo general del proyecto, se planteó iniciar un proceso de toma de datos complementario al ejecutado por el proyecto Investigación Situación Pesquerías Bentónicas, en el marco de una Pesca de Investigación. En la propuesta técnica, el período comprometido con actividades en terreno, fue de tres meses; se hicieron algunos ajustes a la programación y se traspasaron algunas actividades a la fase II de este estudio. De esta manera se continuó con la toma de datos durante todo el período de extracción, marzo a agosto...
Tipo: Report Palavras-chave: Fishery surveys; Monitoring; Catch/effort; Resource management; Benthos; Biological data; Benthos; Monitoring; Resource management; Http://aims.fao.org/aos/agrovoc/c_878; Http://aims.fao.org/aos/agrovoc/c_4911; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2005 URL: http://hdl.handle.net/1834/1809
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Transition Landscapes and Social Networks: Examining On-Gound Community Resilience and its Implications for Policy Settings in Multiscalar Systems Ecology and Society
Beilin, Ruth; Melbourne School of Land and Environment, University of Melbourne; rbeilin@unimelb.edu.au; Reichelt, Nicole Tania; Melbourne School of Land and Environment, University of Melbourne; reichelt@unimelb.edu.au; King, Barbara Joyce; Melbourne School of Land and Environment, University of Melbourne; b.king3@pgrad.unimelb.edu.au; Long, Allison; Department of Sustainability and Environment, Victorian Government; allison.long@dse.vic.gov.au; Cam, Stephanie; Department of Sustainability and Environment, Victorian Government; stephaniec@rmcg.com.au.
Community based natural resource management groups contribute to landscape scale ecological change through their aggregation of local ecological knowledge. However, the social networks at the heart of such groups remain invisible to decision makers as evidenced in funding cuts and strategic policy documents. Our research is a pilot study of the social networks in two peri-urban landscapes in Victoria, Australia. We describe the social network analysis undertaken with regard to natural resource management issues. The findings are assessed against the qualities of resilience: diversity, modularity, connectivity, and feedback loops. A social network analysis tool is discussed with participants to assess its usefulness on-ground and with agency staff...
Tipo: Peer-Reviewed Reports Palavras-chave: Community based; Complex systems; Landcare; Multiscalar collaboration; Resource management; Social network analysis; Social resilience.
Ano: 2013
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Markets Drive the Specialization Strategies of Forest Peoples Ecology and Society
Belcher, Brian; Center for International Forestry Research (CIFOR); b.belcher@cgiar.org; Achdiawan, Ramadhani; Center for International Forestry Research (CIFOR); r.achdiawan@cgiar.org; Alexiades, Miguel; University of Kent at Canterbury; mna@kent.ac.uk; Campbell, Bruce; Center for International Forestry Research (CIFOR); b.campbell@cgiar.org; Cunningham, Tony; World Wildlife Fund/UNESCO/Kew People and Plants Initiative; peopleplants@bigpond.com; Fantini, Alfredo; Universidade Federal de Santa Catarina; afantini@cca.ufsc.br; Gautam, Krishna H; Hokkaido University; khgautam@yahoo.com; de Jong, Wil; Center for International Forestry Research (CIFOR); w.de-jong@cgiar.org; Kusters, Koen; Center for International Forestry Research (CIFOR); k.kusters@cgiar.org; Kutty, M. Govindan; Sylva conS; sylvacon@md5.vsnl.net.id; Fu, Maoyi; Chinese Academy of Forestry; fmy@fy.hz.zj.cn; Nair, T.K. Raghavan; Sylva conS; tkrnair@hotmail.com; Ndoye, Ousseynou; CIFOR-Cameroon; o.ndoye@cgiar.org; Ocampo, Rafael; ; quassia@racsa.co.cr; Rai, Nitin; ; nitinrai@vsnl.com; Schreckenberg, Kate; Overseas Development Institute; k.schreckenberg@odi.org.uk; Shackleton, Sheona; Rhodes University; s.shackleton@ru.ac.za; Shanley, Patricia; Center for International Forestry Research (CIFOR); p.shanley@cgiar.org; Sunderland, Terry; African Rattan Research Programme; afrirattan@aol.com; Youn, Yeo-Chang; Seoul National University; youn@snu.ac.kr.
Engagement in the market changes the opportunities and strategies of forest-related peoples. Efforts to support rural development need to better understand the potential importance of markets and the way people respond to them. To this end, we compared 61 case studies of the commercial production and trade of nontimber forest products from Asia, Africa, and Latin America. The results show that product use is shaped by local markets and institutions, resource abundance, and the relative level of development. Larger regional patterns are also important. High-value products tend to be managed intensively by specialized producers and yield substantially higher incomes than those generated by the less specialized producers of less managed, low-value products....
Tipo: Peer-Reviewed Reports Palavras-chave: Commercialization; Forest use; Market development; Nontimber forest products; Poverty; Resource management; Specialization.
Ano: 2004
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Different property rights regimes in the Lake Victoria multiple species fishery OceanDocs
Berger, B.; Brown, G.; Ikiara, M..
Greater ecosystem complexity is recognized by studying a two species predator-prey model under two property rights regimes: free entry and a system such as individual quotas which execute an economically optimal solution. A bottom-up management experiment is discussed in the context of Lake Victoria fisheries.
Tipo: Report Palavras-chave: Freshwater fish; Predators; Resource management; Predators; Resource management; Http://aims.fao.org/aos/agrovoc/c_6163; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2004 URL: http://hdl.handle.net/1834/1273
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ENVIRONMENTAL POLICY ANALYSIS AND INSTRUMENTS FOR BIODIVERSITY CONSERVATION: A REVIEW OF RECENT ECONOMIC LITERATURE AgEcon
Bhattarai, Madhusudan; Hammig, Michael D..
This paper provides a synthesis of recent literature dealing with the institutional environment, policy framework, and economic instruments used in policy analysis related to the conservation and sustainable use of biodiversity resources. The paper analyzes the economic consequences of alternative policy options and summarizes the application of these economic issues in the formulation of biodiversity protection policy. The paper also concludes that the proper understanding of underlying institutions and, if needed, institutional reforming procedures are also required to provide appropriate incentive structures for conservation and sustainable use of biodiversity resources. Illustrations of these principles and examples are taken from published accounts...
Tipo: Working or Discussion Paper Palavras-chave: Biodiversity; Conservation; Resource management; Environmental Economics and Policy; Q2; Q3.
Ano: 1998 URL: http://purl.umn.edu/18810
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Different property rights regimes in the Lake Victoria multiple species fishery OceanDocs
Brown, G.; Berger, B.; Ikiara, M..
Greater ecosystem complexity is recognized by studying a two species predator-prey model under two property rights regimes: free entry and a system such as individual quotas which execute an economically optimal solution. A bottom-up management experiment is discussed in the context of Lake Victoria fisheries.
Tipo: Report Palavras-chave: Freshwater fish; Predators; Resource management; Predators; Resource management; Fisheries.
Ano: 2004 URL: http://hdl.handle.net/1834/1273
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Diagnóstico del recurso ostión del sur OceanDocs
Cornejo, S.; Daza, E.; Guzmán, L..
El presente informe da cuenta de los resultados de las actividades realizadas para evaluar el estado de los bancos de ostión del sur (Chlamys vitrea), en sectores selectos de la región de Magallanes y Antártica Chilena (XII Región). Se incorporan también propuestas de administración y medidas para la recuperación de las poblaciones del recurso. Se presenta la ubicación geográfica de los bancos identificados en cada fiordo y la superficie ocupada por ellos, además de las estructuras de tamaño, tallas medias, fracción de ejemplares sobre la talla mínima legal, relación longitud peso, pesos medios, estimaciones de densidad y abundancia, además de las estimaciones de las capturas totales permisibles (CTPs).
Tipo: Report Palavras-chave: Marine molluscs; Resource management; Population characteristics; Population density; Abundance; Population structure; Population structure; Resource management; Population density; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_6524; Http://aims.fao.org/aos/agrovoc/c_6112.
Ano: 2005 URL: http://hdl.handle.net/1834/1755
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Les perspectives du privé dans la gestion des ressources: contribution de GAIPES OceanDocs
Coulibaly, M..
GAIPES
Tipo: Conference Material Palavras-chave: Resource management; Fishery regulations; Reproduction; Fishing effort; Fishery products; Bilateral agreements; International cooperation; Research; Marketing; Fishing; Fishery products; Marketing; Resource management; Reproduction; Fishing effort; International cooperation; Research; Fishing; Http://aims.fao.org/aos/agrovoc/c_2941; Http://aims.fao.org/aos/agrovoc/c_4620; Http://aims.fao.org/aos/agrovoc/c_6524; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_24027; Http://aims.fao.org/aos/agrovoc/c_16378; Http://aims.fao.org/aos/agrovoc/c_6513; Http://aims.fao.org/aos/agrovoc/c_26950.
Ano: 2004 URL: http://hdl.handle.net/1834/3674
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Análisis de los conflictos uso-recursos en el humedal de San Miguel de Parada OceanDocs
Cruz, Y.; García, R.; Lafargue, S.; Reyes, O..
El humedal de San Miguel de Paradas es el más extenso e importante de Santiago de Cuba, propuesto en la categoría de Refugio de Fauna por albergar alrededor de 132 especies de aves. A pesar de los esfuerzos realizados, el desarrollo socioeconómico en zonas aledañas al humedal, continúa incrementando su nivel de degradación. En el presente trabajo se realiza una caracterización de los usos, recursos y usuarios del humedal, así como un análisis de la interacción de los usos y usuarios y los conflictos presentes en la zona. Se identificaron los principales impactos y problemas existentes. La importancia de este trabajo consiste en que constituye la línea base para la confección de una propuesta de programa de Manejo Integrado para la conservación del Humedal...
Tipo: Preprint Palavras-chave: Resource management; Resource management; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2010 URL: http://hdl.handle.net/1834/3621
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Marine Resource Management for Misali Island: Preliminary Analysis by Frontier-Tanzania OceanDocs
Daniels, C.; Fanning, E.; Redding, D..
Abstract—In collaboration with local stakeholders, Frontier-Tanzania is collecting biophysical information to facilitate effective management initiatives for Misali Island, where marine resource management is currently limited to a 1.4-km2 non-extraction zone within a 21.6-km2 conservation area. In the study reported here, the extraction and non-extraction zones at Misali Island with similar substrata were compared. Data analysis showed a significant disassociation in both abundance and mean length patterns of fish families found in each zone. Further analysis using t-tests on individual families showed that some groups were significantly more abundant in either zone, but without significant differences of mean lengths. Fish family abundance and length...
Tipo: Journal Contribution Palavras-chave: Misali; Non-extraction zone; Artisanal fishing; Pemba; Marine resources; Resource management.
Ano: 2003 URL: http://hdl.handle.net/1834/950
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PECES Y MACROINVERTEBRADOS MÓVILES DE HÁBITATS ARTIFICIALES EN LA BAHÍA DE TAGANGA, CARIBE COLOMBIANO Boletín de Investigaciones
Delgadillo-Garzón,Óscar.
Fishes and macroinvertebrates associated to two types of artificial habitats deployed in Taganga Bay were assessed by stationary visual census to compare these assemblages. Forty-one species of fishes and nine macroinvertebrates were observed in eleven visual censuses. The distribution patterns depicted in abundance and richness between the two types of habitats used (concrete blocks vs. artificial shelters), were a possible response to dissimilarities in their location and number of visual census. A relative high fish richness and diversity were found in these artificial habitats, in comparison to other artificial structures in Colombia, probably owing to their proximity with heterogeneous natural habitats. The use of complex artificial habitats could...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Artificial habitats; Fishes; Macroinvertebrates; Resource management; Taganga Bay.
Ano: 2009 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612009000100011
Registros recuperados: 78
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