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Trial Fishing for Lantern Fishes (Myctophids) in the gulf of oman (1989-1990)









Fisheries Circular. No. 935. Rome, FAO. 1998. 66p. (Translated by Tooraj Valinassab).


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    Report of the fao EastMed support to the fishing trials carried out off the south Lebanese coasts 2012
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    Lebanese coastal habitats are suffering from over-pressure from fishing activities being exposed at the same time to different sources of pollution. In order to evaluate the potentiality of offshore fishing grounds for local artisanal fishery, we carried out a short survey in the area between Tyre and Naqoura (South Lebanon), using both monofilament gillnets to target hake (Merluccius merluccius) and Spanish traps designed to catch the striped soldier shrimp (Plesionika edwa rdsii). A total of 11 hauls, 7 with gillnets and 4 with traps were carried out in spring 2012, between 8 and 420 m depth. The fish and shrimp specimens caught were measured (total length TL and carapace length CL) sexed, weighted and maturity stage recorded. A total of 34 species were caught in the gillnet hauls. In the offshore sampling stations, the hake was the most abundant species in the catch with CPUE up to 6.6 kg/km net day. Hake specimens ranged between 25.5 and 57.5 cm with a high occurrence of mature females. The traps for the soldier shrimps returned mean CPUEs of 210-310 g/trap/day higher of those obtained in other sectors of the Western Mediterranean. The composition of the catch showed large differences according to the depth: the higher abundance of large ovigerous females was observed between 200 and 300 m depth. On deeper depths (400-420 m) the catch was almost composed by males and immature females, while the smallest immature spe cimens were caught in the haul carried out between 100 and 150 m depth. The results of the survey, even if preliminary, showed the occurrence of potentially exploitable resources on the Lebanese upper slope. Further surveys are required to gather quantitative data on the spatio-temporal distribution of hake and striped soldier shrimp off-shore the Lebanese coasts and to identify the more suitable fishing periods and areas.
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    Summary report on cruise of the R/V Shoyo Maru in the North Arabian Sea, 2 October 1975 - 14 January 1976 1976
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    As reported in the Fourth Session of the IOFC Executive Committee held in Rome in October 1974, the efforts of IOP in bringing the R/V Shoyo Maru to participate in the North Arabian Sea survey succeeded when the vessel undertook cruises along the waters of Pakistan in November/December 1975. The present paper gives a brief description of the survey and its results, summarized from the original report in Japanese which has been published by the Fishery Agency of Japan in July 1976. The activities covered oceanographic observation, conventional biological survey (sighting of pelagic shoals and collection of fishes) and acoustic survey. A rendez-vous with the R/V Dr. F. Nansen, the main vessel for the North Arabian Sea survey, for calibration of acoustic instruments was a special feature of the survey. The up-welling supposedly to be remnant of the southwest monsoon phenomenon was located at 23°N, 63°E as late as November during the year of survey. Another up-welling noticed in the vicini ty of 24°N, 66°E was interpreted as one inherent to the continental slope. The pelagic shoals appeared rather scarce in the offshore waters covered by the vessel and the demersal fishes were located mainly in the continental slope. The demersal catch included longspine seabream, giant catfish, Jarboua therapon, threadfin breams, brushtooth lizardfish and sweetlips. Indications of substantial stock of squids were noticed in the offshore waters around the up-welling area. The squids appear to sink to deeper layers of 100-350 mt during daytime and move to the upper layer at night and are easily hooked by jigs.
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    Stock assessment for the round herring (Etrumeus teres) caught by purse seine in the Gulf of Suez 1984
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    This report describes an assessment of the round herring stock based on catch sampling undertaken during the seasons of 1979/80, 1980/81 and 1981/82. Spawning was shown to occur from January through May in each year; and first sexual maturity to occur several months prior to age 2 years. The recruitment of young fish was concluded as taking place between seasons. Yield per recruit estimations indicated that increases above the contemporary levels of fishing effort would be associated with reduce d annual catches; while substantial reductions in fishing effort would be associated with only small consequential decreases in catch. Reductions in the duration of the fishing season while maintaining the fishing efforts constant, were shown likely to be associated with increased catches

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