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首页> 外文期刊>Indian Journal of Fisheries >Economic externalities of low value fishes in trawl operations in Kerala
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Economic externalities of low value fishes in trawl operations in Kerala

机译：喀拉拉邦拖网作业中低价值鱼类的经济外部性

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Fisheries over the years evolved from subsistence fishing towards a capital intensive enterprise. There has been structural transformation in the fishing fleet with motorisation and mechanisation. The current scenario of marine fisheries in terms of fishing fleets clearly indicates a situation "too many boats chasing too few fishes". Due to the tragedy of commons in operation, increasing fleet size as well as costs of fishing and the decreasing catch per unit efforts, the fishing operations have taken a toll. The Mechanised sector is venturing into multiday fishing which negate the losses of fishing cost. Sizeable amount of low value fishes are landed across the landing centres on account of targeted fishing. Low value fishes include juveniles, bycatch, trash fishes and discards and it is estimated that around 30% of the mechanised landings constitute low value fishes which has a huge untapped economic value. Economic loss due to low value catch could be reduced by implementing mesh-size regulations to avoid juvenile catch, prevent discards and utilising bycatch. Appropriate utilisation strategies are to be developed with respect to discards, regulating multiday fishing operations or innovative measures may be adopted to land the catches on frequent intervals. There exists a huge consumer demand on account of the escalating domestic market prices of fish. The paper focuses on the targeted fishing and resultant huge amount of low value fishes that possess huge economic value which are being surpassed. The paper estimates the quantum of low value fish across the different fishing sectors. The paper suggests the possible policy intervention required for harnessing the market for low value fishes
机译：多年来，渔业从自给自足渔业发展为资本密集型企业。捕鱼船队已经进行了机械化和机械化改造。就捕捞船队而言，目前海洋渔业的情况清楚地表明了一种情况：“太多的船只追逐了很少的鱼类”。由于运营中公地的悲剧，船队规模的增加，捕鱼成本的增加以及单位捕捞努力的减少，捕鱼活动造成了损失。机械化部门正在冒险进行多日捕捞，从而抵消了捕捞成本的损失。由于有针对性的捕捞，相当数量的低价值鱼类被降落在登陆中心。低价值鱼类包括幼鱼，兼捕，杂鱼和丢弃物，据估计，约有30％的机械化着陆构成了低价值鱼类，具有巨大的未开发经济价值。通过实施筛网尺寸规程来避免幼鱼捕获，防止丢弃和利用副渔获物，可以减少由于低价值渔获物造成的经济损失。将针对丢弃物制定适当的利用策略，规范多日捕捞作业，或采取创新措施频繁地将渔获物降落。由于鱼的国内市场价格上涨，存在巨大的消费者需求。本文着眼于有针对性的捕捞以及由此产生的大量具有超大经济价值的低价值鱼类，这些鱼类已被超越。本文估计了不同捕捞部门中低价值鱼类的数量。该文件提出了利用低价值鱼类市场所需的可能的政策干预措施

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