Guia Para Reducir La Captura De Fauna Incidental Bycatch En Las Pesquerias Por Arrastre De Camaron Tropical
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Guia Para Reducir La Captura De Fauna Incidental Bycatch En Las Pesquerias Por Arrastre De Camaron Tropical
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Author : Food and Agriculture Organization of the United Nations
language : es
Publisher: Food & Agriculture Org.
Release Date : 2007-02-28
Guia Para Reducir La Captura De Fauna Incidental Bycatch En Las Pesquerias Por Arrastre De Camaron Tropical written by Food and Agriculture Organization of the United Nations and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-02-28 with Business & Economics categories.
La fauna acompanante o incidental (Bycatch) es la parte de la captura realizada por el pescador que no es parte de su objetivo de pesca o que no desea pescar. La captura de bycatch puede ser una amenaza para la diversidad de especies y bienestar del ecosistema ya que parte de esta capture usualmente no esta reglamentada. En las pesquerias de arrastre de camaron tropical, el bycatch frecuentemente esta compuesto por juveniles de especies de peces y es, en consecuencia, una amenaza a la seguridad alimentaria y a la produccion pesquera sostenida. El bycatch es un problema global que debe ser abordado. La presente guia fue disenada para pescadores, rederos, tecnologos, pesqueros y cualquier interesado en una guia practica sobre el diseno, uso y operacion efectiva de dispositivos reductores de fauna de Acompanamiento. Los administradores pesqueros, politicos y legisladores pudieran hallar esta guia de gran utilidad como ayuda en el desarrollo de especificaciones para la reglamentacion en el diseno y aplicacion de estos dispositivos en la pesqueria por arrastre de camaron. Publicado tambien en ingles y frances."
Marine Freshwater Research
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Author :
language : en
Publisher:
Release Date : 2008
Marine Freshwater Research written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Freshwater biology categories.
Alternativas Para Reducir La Captura Incidental En La Pesca De Arrastre Del Camar N En El Golfo De Tehuantepec M Xico
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Author : Saúl Sarmiento Náfate
language : es
Publisher:
Release Date : 2009
Alternativas Para Reducir La Captura Incidental En La Pesca De Arrastre Del Camar N En El Golfo De Tehuantepec M Xico written by Saúl Sarmiento Náfate and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
L Neas De Base Biol Gicas De Las Pesquer As De Arrastre De Fondo De Am Rica Latina Y El Caribe
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Author : Organización de las Naciones Unidas para la Agricultura y la Alimentación
language : es
Publisher: Food & Agriculture Org.
Release Date : 2022-03-10
L Neas De Base Biol Gicas De Las Pesquer As De Arrastre De Fondo De Am Rica Latina Y El Caribe written by Organización de las Naciones Unidas para la Agricultura y la Alimentación and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-03-10 with Technology & Engineering categories.
Este informe brinda un resumen de los estudios nacionales de seis países de América Latina y el Caribe – Brasil, Colombia, Costa Rica, México, Suriname y Trinidad y Tobago - en cuanto al conocimiento de la composición y estructura de las capturas incidentales y los descartes en las pesquerías de arrastre, tanto de camarón como de especies de escama demersal. El documento examina la composición, volúmenes, proporciones y destino final de las capturas incidentales, así como la cuantificación de los descartes, tanto para las flotas artesanales como las industriales o semiindustriales. De igual forma, se hace un repaso de la relación entre las variaciones estacionales, las áreas de pesca y el nivel de esfuerzo pesquero con cada una de las variables antes mencionadas. Los resultados de los estudios nacionales, en combinación con análisis de las características comunes que este tema muestra a nivel regional, son la base de las conclusiones y recomendaciones presentadas al final del reporte. Los insumos para su elaboración han sido generados en el marco del proyecto “Gestión sostenible de la captura incidental de las pesquerías de arrastre de América Latina y el Caribe” (REBYC-II LAC), el cual tiene como objetivo central reducir los impactos negativos de la pesca de arrastre en los ecosistemas y, al mismo tiempo, apoyar a las comunidades costeras en la transición hacia prácticas de pesca más responsables que mejoren sus medios de vida.
Informe De Los Talleres De Gesti N Sostenible De Captura Incidental Y Pesquerias De Arrastre Rebyc Ii Alc En Am Rica Latina Y Caribe
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Author :
language : en
Publisher:
Release Date : 2015
Informe De Los Talleres De Gesti N Sostenible De Captura Incidental Y Pesquerias De Arrastre Rebyc Ii Alc En Am Rica Latina Y Caribe written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Bycatches (Fisheries) categories.
Discards In The World S Marine Fisheries
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Author : Kieran Kelleher
language : en
Publisher: Food & Agriculture Org.
Release Date : 2005
Discards In The World S Marine Fisheries written by Kieran Kelleher and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Business & Economics categories.
This publication gives an updated review of the quantity of discards in the world's marine fisheries, using information from a broad range of fisheries in all continents. A number of policy issues are discussed including a 'no discards' approach to fisheries management, the need for balance between bycatch reduction and bycatch utilisation initiatives, and concerns arising from incidental catches of marine mammals, birds and reptiles. The report also highlights the need for more robust methods of estimating discards, and the development of bycatch management plans.
Risk Evaluation And Biological Reference Points For Fisheries Management
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Author : National Research Council Canada
language : en
Publisher: NRC Research Press
Release Date : 1993
Risk Evaluation And Biological Reference Points For Fisheries Management written by National Research Council Canada and has been published by NRC Research Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Nature categories.
Papers presented: 1) Reference points for fisheries management: the western Canadian experience; 2) Reference points for fisheries management: the eastern Canadian experience; 3) Reference points for fisheries management: the ICES experience; 4) Spawning stock biomass per recruit in fisheries management: foundation and current use; 5) The development of a management procedure for the South African anchovy resource; 6) How much spawning per recruit is enough?; 7) The behaviour of Flow, Fmed and Fhigh in response to variation in parameters used for their estimation; 8) The Barents Sea capelin stock collapse: a lesson to learn; 9) Variance estimates for fisheries assessment: their importance and how best to evaluate them; 10) Evaluating the accuracy of projected catch estimates from sequential population analysis and trawl survey abundance estimates; 11) Bootstrap estimates of ADAPT parameters, their projection in risk analysis and their retrospective patterns; 12) Analytical estimates of reliability for the projected yield from commercial fisheries; 13) Risk evaluation of the 10% harvest rate procedure for capelin in NAFO Division 3L; 14) Using jackknife and Monte Carlo simulation techniques to evaluate forecast models for Atlantic salmon; 15) Monte Carlo evaluation of risks for biological reference points used in New Zealand fishery assessments; 16) A comparison of event free risk analysis to Ricker spawner-recruit simulation: an example with Atlantic menhaden; 17) Choosing a management strategy for stock rebuilding when control is uncertain; 18) Risks and uncertainties in the management of a single-cohort squid fishery: the Falkland Islands Illex fishery as an example; 19) Risks of over- and under-fishing new resources; 20) Estimation of density-dependent natural mortality in British Columbia herring stocks through SSPA and its impact on sustainable harvesting strategies; 21) The comparative performance of production-model and ad hoc tuned VPA based feedback-control management procedures for the stock of Cape hake off the west coast of Africa; 22) A proposal for a threshold stock size and maximum fishing mortality rate; 23) Biological reference points for Canadian Atlantic gadoid stocks; 24) Stochastic locally-optimal harvesting; 25) ITQ based fisheries management; 26) Bioeconomic methods for determining TACs; 27) Management strategies: fixed or variable catch quotas; 28) Bioeconomic impacts of TAC adjustment strategies: a model applied to northern cod; 29) Experimental management programs for two rockfish stocks off British Columbia; 30)A brief overview of the experimental approach to reducing uncertainty in fisheries management; 31) Fisheries management organizations: a study of uncertainty.
Fisheries Ecology And Management
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Author : Carl J. Walters
language : en
Publisher: Princeton University Press
Release Date : 2020-06-30
Fisheries Ecology And Management written by Carl J. Walters and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-06-30 with Nature categories.
Quantitative modeling methods have become a central tool in the management of harvested fish populations. This book examines how these modeling methods work, why they sometimes fail, and how they might be improved by incorporating larger ecological interactions. Fisheries Ecology and Management provides a broad introduction to the concepts and quantitative models needed to successfully manage fisheries. Walters and Martell develop models that account for key ecological dynamics such as trophic interactions, food webs, multi-species dynamics, risk-avoidance behavior, habitat selection and density-dependence. They treat fisheries policy development as a two-stage process, first identifying strategies for varying harvest in relation to changes in abundance, then finding ways to implement such strategies in terms of monitoring and regulatory procedures. This book provides a general framework for developing assessment models in terms of state-observation dynamics hypotheses, and points out that most fisheries assessment failures have been due to inappropriate observation model hypotheses rather than faulty models for ecological dynamics. Intended as a text in upper division and graduate classes on fisheries assessment and management, this useful guide will also be widely read by ecologists and fisheries scientists.
The Fishes Of The Gal Pagos Islands
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Author : Jack S. Grove
language : en
Publisher:
Release Date : 1997
The Fishes Of The Gal Pagos Islands written by Jack S. Grove and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Fishes categories.
Marking the culmination of research extending back to Darwin in 1835, this comprehensive reference source for scientists also provides an identification guide for visitors to the Galápagos National Park. Includes 521 illustrations, 151 color.
A Global Assessment Of Fisheries Bycatch And Discards
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Author : Dayton L. Alverson
language : en
Publisher: Food & Agriculture Org.
Release Date : 1994
A Global Assessment Of Fisheries Bycatch And Discards written by Dayton L. Alverson and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Technology & Engineering categories.
The authors estimate that between 17.9 and 39.5 million tons (average 27.0 million) of fish are discarded each year in commercial fisheries. These estimates are based on a review of over 800 papers. The highest quantities of discards are from the Northwest Pacific while tropical shrimp trawl fisheries generate a higher proportion of discards than any other fishery type, accounting for one third of the global total. Of four major gear groups, shrimp trawls stand alone at the top of the list; bottom trawls, long-lines and pot fisheries come next. The third group consists of Japanese high-seas drift net fisheries, Danish seines and purse seines for capelin. Relatively low levels result from pelagic trawls, small pelagic purse seines and some of high seas drift nets. The authors point to inadequate data to determine the biological, ecological, economic and cultural impacts of discards although economic losses run to billions of dollars. However, it appears most likely that socio-cultural attitudes towards marine resources will guide international discard policies. Techniques to reduce bycatch levels including traditional net selectivity, fishing gear development and time/area restrictions, are discussed. Effort reduction, incentive programmes and individual transferable quotas (that make the vessel responsible for bycatch reduction) are seen as promising avenues for the future. However, quick solutions to the problem are unlikely and much more information is required. The publication includes a diskette with the complete Bycatch Database, which was compiled for the study, and a summary of it.