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Evolving trends in the Kenyan artisanal reef fishery and its implications for fisheries management

机译：肯尼亚手工珊瑚礁渔业的发展趋势及其对渔业管理的影响

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Marine capture fishery in Kenya is small contributing only 4% to the overall fish production in the Country. This is because the fishery is artisanal characterized by relatively simple gears and vessels and has as yet received little attention due to the limited understanding of its contribution to coastal livelihoods. Nevertheless the Kenyan reefs are considered to be among the most heavily exploited reefs in East Africa. A review of the coastal artisanal fisheries landings for the past sixty years indicates that significant changes have occurred in the fisheries. There has been an increase in effort evidenced by the increased number of fishers, fishing vessels and change in fishing gears. Overall the landings have remained relatively stable over the past decade fluctuating between 5000 tonnes and slightly more than 8000 tonnes annually which are within the range of the predicted sustainable limit of the fishery based on both the Schaefer and fox model prediction of the maximum sustainable yield (MSY). Our estimate of MSY (8264-8543) and the corresponding effort of 11371-15,467 fishers, derived from the Schaefer and Fox models, would suggest that yields higher than the presently obtained levels cannot be expected in future and that the inter annual variation in total landings may have to do with environmentally triggered changes in resource productivity. The model results also suggest that the overall effort of the present fishery already exceeds sustainable effort levels by at least 20%, suggesting a general state of overfishing. Therefore, there is an urgent need to not only apply stricter gear restrictions but also regulate new entrants in to the fishery while improving on the collection and monitoring of catch and effort data. (C) 2014 Elsevier Ltd. All rights reserved.
机译：肯尼亚的海洋捕捞渔业很小，仅占该国鱼类总产量的4％。这是因为该渔业的手工特征是相对简单的渔具和船只，由于对渔业对沿海生计的贡献的了解有限，因此该渔业很少受到关注。然而，肯尼亚的珊瑚礁被认为是东非开发程度最高的珊瑚礁之一。对过去六十年来沿海手工渔业登陆的回顾表明，渔业发生了重大变化。渔民，渔船数量的增加和渔具的变化证明了努力的增加。在过去十年中，总体上登陆量保持相对稳定，每年在5000吨和8000吨之间波动，这在基于Schaefer和Fox模型对最大可持续产量的预测的渔业可持续极限范围内（ MSY）。我们从Schaefer和Fox模型得出的MSY（8264-8543）估算值和11371-15,467渔民的相应工作量表明，将来无法预期单产会高于目前获得的水平，并且年度总量着陆可能与环境触发的资源生产率变化有关。模型结果还表明，当前渔业的总体努力已超过可持续努力水平至少20％，这表明过度捕捞的总体状况。因此，迫切需要不仅对渔具实行更严格的限制，而且还对渔业的新进入者进行规范，同时改善捕捞和努力数据的收集和监测。 （C）2014 Elsevier Ltd.保留所有权利。

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