Topic
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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TL;DR: More than 340 references about Tanzanian fishery and fish ecology were covered in this article, with most of them presented as grey literature (57%) with limited distribution; only one-fifth were scientific publications in international journals.
Abstract: Fishery resources are a vital source of food and make valuable economic contributions to the local communities involved in fishery activities along the 850 km stretch of the Tanzania coastline and numerous islands. Small-scale artisanal fishery accounts for the majority of fish catch produced by more than 43 000 fishermen in the country, mainly operating in shallow waters within the continental shelf, using traditional fishing vessels including small boats, dhows, canoes, outrigger canoes and dinghys. Various fishing techniques are applied using uncomplicated passive fishing gears such as basket traps, fence traps, nets as well as different hook and line techniques. Species composition and size of the fish varies with gear type and location. More than 500 species of fish are utilized for food with reef fishes being the most important category including emperors, snappers, sweetlips, parrotfish, surgeonfish, rabbitfish, groupers and goatfish. Most of the fish products are used for subsistence purposes. However, some are exported. Destructive fishing methods such as drag nets and dynamite fishing pose a serious problem as they destroy important habitats for fish and other organisms, and there is a long-term trend of overharvested fishery resources. However, fishing pressure varies within the country as fishery resources are utilized in a sustainable manner in some areas. For this report more than 340 references about Tanzanian fishery and fish ecology were covered. There are many gaps in terms of information needed for successful fishery management regarding both basic and applied research. Most research results have been presented as grey literature (57%) with limited distribution; only one-fifth were scientific publications in international journals.
152 citations
TL;DR: Recreational fishing, wether free or at cost, has an economic value and this value was measured in five Nordic countries based on a contingent valuation mail survey.
Abstract: Recreational fishing, wether free or at cost, has an economic value. This value was measured in five Nordic countries based on a contingent valuation mail survey. Regression models were used to ide ...
152 citations
TL;DR: The lack of any recovery by snapper within the Mimiwhangata Marine Park, despite the exclusion of commercial fishers and restrictions on recreational fishing, indicates that partial closures are ineffective as conservation tools.
152 citations
TL;DR: In this paper, a conservative estimate of the number of freshwater bony fish species present in the Bangladesh floodplain is 273 of which 13 are exotics, and the future aim is to shift the benefits to the fishers and to ensure the long-term sustainability of the resources.
152 citations
Journal Article•
TL;DR: In this article, the authors reviewed some species typically used in stock enhancement in Japan were reviewed, and the causes of program success or failure were analyzed in an attempt to determine the best approach for future stocking.
Abstract: Some species typically used in stock enhancement in Japan were reviewed, and the causes of program success or failure were analyzed in an attempt to determine the best approach for future stocking. Recent successes in salmon stock enhancement are attributed to improvement of the return rate resulting from physiological and behavioral research. In scallop stock enhancement, high quality of seedlings, improvement of the environment, crop rotation, and the marketing system have supported a steady yearly increase in yield. Flounder stock enhancement in Fukushima Prefecture has achieved a 30% recapture rate, and the cost-benefit ratio is estimated to be more than 300%. In the case of red sea bream, because recreational anglers now catch a higher percentage of stocked fish than do commercial fishermen, a new method of fisheries regulation may be required, as recreational anglers now pay only little of the costs of the stocking program. Masu salmon and abalone stocks are best preserved by the protection of spawning grounds. In marine ranching of striped jack, understanding of behavioral ecology seems to be essential for the success of this project and the prevention of genetic pollution. Behavioral quality of stocked fish is a determining factor in the success of stock enhancement, so attempts have been made to improve behavioral quality in several species. Although sea farming projects have been well supported by basic research on diet, physiology, morphology, and behavior, the present authors believe that ecological research in the natural habitat of each species is indispensable for the success of stock enhancement and that the national and prefectural governments should take the initiative in protection of genetic diversity.
152 citations