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Book (series)A review of the marine resources of the WECAFC region. 1981
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The marine resources of the Western Central Atlantic Ocean fall under the area of jurisdiction of the WECAF Commission: the international body concerned with problems of fisheries management for the Caribbean Sea, the Gulf of Mexico and their Atlantic approaches from Cape Hatteras (35°N Latitude) to Recife, Brazil (10°S Latitude) enclosing a total shelf area of 1.9 million km2 inside 200 m, and including highly diverse environments and fisheries from wide, productive estuarine shelves supporting industrial trawl fisheries along the North and South margins, to narrow shelves, particularly of the many island archipelagos dominated by coral reefs whose productivity is limited to supporting a diversity of small artisanal fisheries. Total landings from the whole area reached 2 million tons in 1978 made up of a large variety of species but dominated by the menhaden fisheries of the northern region. The report considers the main resources of the region, their productivity, population dynamics and estimates of potential yield under several headings, namely, sharks, reef fish, coastal pelagics, menhaden, spiny lobster, crabs and molluscs. A description of the principal fisheries by region is followed by a summary of available information on the status of the stocks, including assessments already in the literature, and new assessments reported here for the first. -
Book (series)Report of the FAO Working Group on the Assessment of Small Pelagic Fish off Northwest Africa. Agadir, Morocco, 17–26 April 2007. / Rapport du Groupe de travail de la FAO sur l’évaluation des petits pélagiques au large de l’Afrique nord-occidentale. Agadir, Maroc, 17-26 avril 2007. 2007
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No results found.The seventh meeting of the FAO Working Group on the Assessment of Small Pelagic Fish off Northwest Africa was held in Agadir, Morocco, from 17 to 26 April 2007. The Group assessed the status of the small pelagic resources in Northwest Africa and made projections on the development of the status of the stocks and on future effort and catch levels. The advices for the stocks are given in relation to the agreed reference points F0.1, FMSY, B0.1 and BMSY and on the basis of the projections for the next five years. The results of the assessments indicate that the stock of round sardinella is overexploited and consequently a decrease in effort in the total sardinella fishery was recommended. The Atlantic horse mackerel was also found to be overexploited whereas the Cunene horse mackerel was found to be fully exploited. It was recommended that the effort in 2008 should decrease about 20 pour cent of the actual effort. The sardine stock in Zone A+B was found overexploited and the Working Group recommended to decrease the effort by 20 pour cent corresponding to a catch level of 350 000 tonnes in 2008. The stock of sardine in Zone C was found to be not fully exploited and it was noted that the total catch level may be temporarily increased, but should be adjusted to natural changes in the stock. The mackerel was found not to be fully exploited, the catches should not exceed in 2008 the current level of 200 000 tonnes. It was not possible to reach relia ble conclusions from the assessment models applied to bonga and anchovy but, in the case of anchovy, acoustic estimates show a decrease in biomass from 2005 to 2006. As a precautionary measure, the catch level for this species should not exceed the average over the last three years of 115 000 tonnes. For bonga, the recommendation from 2006 is maintained as no new information is available on this species, and the Working Group recommended that the catch level should not exceed 42 000 tonnes. -
DocumentSurvey of resources in the Indian Ocean and Indonesian area 1971
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No results found.The resources of the tropical ocean derive from a number of separate ecosystems; for the present purpose there are five: the upwelling areas, offshore oceanic areas, coral seas, mangrove swamps, and coastal areas outside upwelling regions; Studies of the oceanic system lead to the conclusion that stocks of the four most valued tunas (yellowfin, bigeye, albacore, and southern bluefin) are fully exploited; other tunas and tuna-like fishes perhaps can be exploited: Spanish mackerel and especially s kipjack, whose estimated production is 100.000 tons; Coral seas are difficult to exploit, but production is likely to be high; there may be tertiary resources of Sardinella or mackerels over the whole coral area; Mangrove swamps are extensive, and their high productivity could be exploited with a variety of fish, shellfish, and crustacean cultures; the swamps need to be investigated for present resources; Upwelling areas and the associated offshore divergences are the most productive; the most p romising area for development is that off Northern Somalia and Southern Arabia, followed by the Malabar Coast and the Indonesian area. A fisheries survey should be mounted to catalogue resources of the three promising areas; surveys of pelagic resources with echo-sounders and purse-seines should be initiated all over the region but particularly in the upwelling areas.
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