13 resultados para 64-481

em Aquatic Commons


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Contents: At a crossroads: England’s small-scale fisheries are being integrated within a national system. Diversionary tactics: Most of Peru’s anchoveta catches meant for human consumption are being diverted. Fair, sustainable? The new EU-Mauritania Fisheries Agreement has been welcomed—and spurned. A weighty responsibility: A fisheries reform process is under way in several parts of Africa. Sri Lanka. Restoring past glory: The Regional Fisheries Livelihoods Programme focuses on fisheries in the Negombo lagoon. Need for vigilance: Summary of a study on globalization and trade treaties in Atlantic Canadian fisheries. A collective voice: A national workshop on the ILO Work in Fishing Convention was held in Goa, India. Short-term model: Brazil is backing increased production through industrial fisheries and aquaculture. Living the learning. 70 participants from the Honduran Caribbean coast gathered at a conference on SSF. Brazil. Towards synthesis: On the approach of civil society organizations towards the proposed SSF Guidlines.

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During this season the investigations were mainly directed towards elucidation of the selective action of trolling lures. Feather jigs, buffalo horn jigs, stainless steel jigs, Japanese whale bone jigs and plastic jigs were selected. Operations were carried out from Fisheries technology No. 5.

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Hilsa shad, Tenuolosa ilisha, belongs to Clupeidae family and Alsinae subfamily is an euryhaline pelagic and anadromous species living in marine and freshwater waters. Regarding to study the biological characteristics of this species, this study was carried out in the Northern Persian Gulf within Bushehr province waters during years 2006-7. A total of 344 specimens were collected and transported to the laboratory for further different biological measurements consist of: reproduction (GSI, fecundity, maturity stages), feeding (stomach contents, food preference ...), aging; 58 morphometric and ٧ meristic measurements. The results indicate that minimum, maximum and mean body weight are 203, 953 and 481.35±147.64 g, respectively and this values for total length are 26.5, 45.1 and 35.99±3.98 cm. For food regimes, the most abundant phytoplankton foods belong to Bacillariophyta (83.74٪) and zooplanktons of Arthropoda (51٪). The mean RLG was measured about 1.53±0.22 and the mean feeding intensity was about 51.79±38.13. Also, the aging of studied fishes showed that they have 2 to 4 years and most of the samples had 2+ years. The reproduction studies showed that Indian shad is a batch spawner species. The average gonadosomatic index (GSI) is 1.64±1.382 and the main spawning season was determined for April-May.