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首页> 外文期刊>ICES Journal of Marine Science >Risk and strategy of fishers alternatively exploiting sea bream and tuna in the Gibraltar Strait from an efficiency perspective
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Risk and strategy of fishers alternatively exploiting sea bream and tuna in the Gibraltar Strait from an efficiency perspective

机译：从效率角度出发，在直布罗陀海峡交替捕捞鲷鱼和金枪鱼的风险和战略

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摘要

While in the last few years interest in efficiency analyses has increased among fisheries economists, efficiency analyses have not been used so far to compare the profitability of alternative fisheries. We compared the profitability of the sea bream fishery and the tuna fishery, both operating in the South of Spain (Gibraltar Strait), based on an efficiency analysis and on a comparison of the efficient frontiers of the two fisheries. Results for 2002 show that, even if the sea bream is a higher-value species than tuna, the profitability of the latter is higher. However, sea bream still appears to be the target species of the fleet whereas the tuna fishery appears only as an alternative fishery. The key reason appears to be that the latter involves more risk than the former. The management of each fishing vessel seems related to the management strategy of the captain and to his assessments of risk.
机译：尽管在过去几年中，渔业经济学家对效率分析的兴趣有所增加，但到目前为止，尚未使用效率分析来比较替代渔业的获利能力。我们基于效率分析和两种渔业有效边界的比较，比较了在西班牙南部（吉布拉塔尔海峡）经营的鲷鱼和金枪鱼渔业的利润率。 2002年的结果表明，即使鲷鱼的价值高于金枪鱼，后者的利润也更高。但是，鲷鱼仍然是船队的目标物种，而金枪鱼渔业仅作为替代渔业。关键原因似乎是后者比前者更具风险。每个渔船的管理似乎都与船长的管理策略及其风险评估有关。

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