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Fishing

About: Fishing is a research topic. Over the lifetime, 26543 publications have been published within this topic receiving 455552 citations. The topic is also known as: angling.


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Journal ArticleDOI
TL;DR: In this article, the relationship between fishing and farming in providing household income and nutritional security among Luo communities on the shores of the Kenyan sector of Lake Victoria is investigated, and the authors aim to shed light upon two key issues relating to change and development in traditional African food production systems.
Abstract: The paper considers the relationships between fishing and farming in providing household income and nutritional security among Luo communities on the shores of the Kenyan sector of Lake Victoria. In recent years the resources of Lake Victoria have come under severe pressure due to a variety of economic and ecological factors associated with over-fishing and a significant decline in fish species. Farming has increased in importance as households attempt to meet subsistence needs, but plot fragmentation, drought and low investment have led to poor crop yields. Future development strategies need to enhance the sustainability of the resources of both lake and land, and possibly build upon traditional management methods and institutions. THIS STUDY AIMS TO SHED LIGHT upon two key issues relating to change and development in traditional African food production systems. Firstly, remarkably little has been written on the socio-economic aspects of artisanal fishing systems in Africa, in spite of the fact that fish provides a rich source of protein in a continent where there is a widespread and often chronic shortage of animal products.1 Secondly, in the face of popular media images of a continent constantly plagued by human and environmental problems, recent research has demonstrated that many traditional African food production systems are, in fact surprisingly resilient. This resilience is frequently based upon a wide range of indigenous 'coping mechanisms', the essence of which is the detailed appreciation and utilization of the filll spatial and ecological diversity of the resource base, to

93 citations

Journal ArticleDOI
TL;DR: In this article, the biology, foraging ecology and management of New Zealand sea lions in relation to the subantarctic arrow squid Nototodarus sloanii fishery are reviewed.
Abstract: The New Zealand (NZ) sea lion Phocarctos hookeri is one of the world's most rare and highly localized pinnipeds. NZ sea lions only breed on New Zealand's subantarctic islands, with 86% of breeding occurring on the Auckland Islands (50°S, 166°E). In 1995, the sea surrounding the Auck- land Islands out to 12 nautical miles (n miles) was declared a Marine Mammal Sanctuary, primarily to protect the breeding area of this species. Subsequently, in 2003, this area became a concurrent no- take Marine Reserve. Both protection measures ban commercial trawl fishing within this area. Trawl- ing is the predominant anthropogenic impact upon this species, both through direct (mortality as a result of bycatch) and potential indirect (resource competition) effects. However, despite this area- based protection and the fisheries management measures in the surrounding waters, the species, which numbers less than 12 000 ind., has shown a 30% decline in pup production over the last 8 yr. In this paper, I review the biology, foraging ecology and management of NZ sea lions in relation to the subantarctic arrow squid Nototodarus sloanii fishery to explore alternative management options within the framework of current legalisation in New Zealand. Management options need to afford better protection for this declining species, while still allowing profitable commercial fisheries operations for arrow squid in New Zealand waters.

93 citations

Journal ArticleDOI
TL;DR: It is concluded that ecotrophic modelling is an useful tool for fishery management, since it can improve the understanding of the predator–prey interactions among the exploited (fishery resources) and unexploited but potential fishery resources of the system.

93 citations

Journal ArticleDOI
TL;DR: Shannon et al. as mentioned in this paper explored the effects of altered fishing on three abundant small pelagic fish, and on hake, using Ecosim for three scenarios of top-down and bottom-up control.
Abstract: Shannon, L J, Cury, P M, and Jarre, A 2000 Modelling effects of fishing in the Southern Benguela ecosystem – ICES Journal of Marine Science, 57: 720–722 A mass-balanced model of the Southern Benguela upwelling ecosystem was constructed using Ecopath The effects of altered fishing on three abundant small pelagic fish, and on hake, are explored using Ecosim for three scenarios of top-down and bottom-up control: (1) bottom-up control of zooplanktivorous fish by zooplankton dampens effects of altered fishing; (2) wasp–waist control (top-down control of zooplankton by their predators and bottom-up control of predators by small pelagic fish) causes vigorous effects to propagate through the ecosystem; and (3) effects of mixed control (neither top-down nor bottom-up control) are intermediate between the former two scenarios Heavier fishing may be sustainable under one scenario of control, whereas fisheries may crash if another type of control is assumed The key to predicting ecosystem effects of fishing is understanding the way in which components of the ecosystem interact

93 citations

Journal ArticleDOI
TL;DR: An annual spawning aggregation of Nassau grouper,Epinephelus striatus, observed off the southern coast of Quintana Roo, Mexico, on full moon days in December and January, was surveyed during the winters from 1991 to 1993 as discussed by the authors.
Abstract: An annual spawning aggregation of Nassau grouper,Epinephelus striatus, observed off the southern coast of Quintana Roo, Mexico, on full moon days in December and January, was surveyed during the winters from 1991 to 1993. A fish aggregation had been appearing at one traditional site off Mahahual for more than 80 years, but currently it forms at undetermined sites far from the original site. Fish migration was northwards in the fore reef border along the 14 m isobath and isolated groups were observed. Through visual assessment fish aggregations were found to include 200 to 500 individuals. The fishing on Nassau grouper aggregations has been active since 1910 by using hook and line; however, recently fishermen used gill nets. It is necessary to continue the research on this aggregation and establish management guidelines to protect the species.

93 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20231,709
20223,569
20211,068
20201,247
20191,089
20181,130