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Mariculture and Fisheries Department Kuwait Institute for Scientific Research
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Field experiments to improve the efficacy of gargoor (fish trap) fishery in Kuwait’s waters[J]. 海洋湖沼学报(英文), 2012,30(4):535-546.
Chen, W., Al-Baz, A., Bishop, J.M. et al. Field experiments to improve the efficacy of gargoor (fish trap) fishery in Kuwait’s waters., Chin. J. Ocean. Limnol. 30, 535–546 (2012). https://doi.org/10.1007/s00343-012-1212-x
Field experiments to improve the efficacy of gargoor (fish trap) fishery in Kuwait’s waters[J]. 海洋湖沼学报(英文), 2012,30(4):535-546. DOI: 10.1007/s00343-012-1212-x.
Chen, W., Al-Baz, A., Bishop, J.M. et al. Field experiments to improve the efficacy of gargoor (fish trap) fishery in Kuwait’s waters., Chin. J. Ocean. Limnol. 30, 535–546 (2012). https://doi.org/10.1007/s00343-012-1212-x DOI:
Fish traps were investigated to understand the effects of season
bait type
trap size
and trap soak time on catch rates
catch composition
and trap loss rates from March 2004 to September 2005
to improve the performance and management of Kuwait’s gargoor (cage style fish trap) fishery
which used to be the nation’s most important one in terms of value and landings volume. Catch rates were the highest in April/May (5–8 kg/trap haul) and again in December (7 kg/trap haul). Bait type and trap size also affected catch rates and species composition. Of the seven baits tested
the best catch rates
>5 kg/trap haul
occurred with cuttlefish (Sepia pharaonis)
but wolf-herring (Chirocentrus dorab) and mullet (Liza klunzingeri) also produced good results (4–5 kg/trap haul). Within the five tested sizes
the two largest-sized traps captured more fish and larger size fish. Analysis of variance (ANOVA) showed significant differences of catch rate among traps with different baits as well as among traps of different sizes. Duncan test further revealed these differences between two specific baits and sizes. Cluster Analysis of species composition showed more differences among different baits than among different trap sizes. Longer soak times did not result in larger catch rates
but increased trap loss. About 10-day soak time resulted in trap loss 7%
while 40-day soak time could result in a loss of around 20%. Consequently
it is recommended that the gargoor be checked every 10 or fewer days. The average overall catch rate during the study period was lower than that of 1980s (4.5 vs. 5.8 kg/trap haul)
indicating a possible decline of fish abundance in Kuwait’s waters. It is recommended that the number of gargoor fishing boats and gargoors from each boat should be limited to allow stock rehabilitation.
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