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本文通过评估肯尼亚南部多种渔具渔业的捕鱼成本以及渔民利用小型及大型定网、刺网、地曳网、手钓和叉鱼枪等渔具所获得的收入,确定了渔具使用的财务依据。文中采用直接观察、对捕鱼带头人和船长等关键知情人的访谈等方法收集渔获量、渔具的成本、渔船、以及鱼类价格等数据。在所采用的渔具中,叉鱼枪的月使用成本最低(每月1美元);大型定网的月使用成本最高(每月13美元)。投入资金成本的地曳网捕鱼者收益最高(每月183美元);没有投入资金成本的地曳网捕鱼者收益最低(每月20美元)。获取的收入和渔具的收益率有一个直接的正相关关系。本文利用财务手段把每种渔具对鱼类及其栖息地的损害分为4个等级,结果表明成本低的渔具对环境造成的破坏最为严重,显示出渔具的成本和环境健康之间存在一种权衡取舍的关系。
This paper identifies the financial justification for the use of gear by assessing the cost of fishing for various types of fishing gear in southern Kenya and the incomes of fishers using fishing gear such as small and large nets, gillnets, geodesic mounts, hand-fishing and spear guns. The paper collects data on catches, gear costs, fishing vessels, and fish prices using direct observations, interviews with key insiders such as fishing leaders and masters. Among fishing gear used, the cost of monthly use of a barbed-wire gun is the lowest (US $ 1 per month); large-scale netting costs the highest monthly cost (US $ 13 per month). The cost of capital to the net-mokers highest earnings ($ 183 per month); did not put the cost of capital to the lowest profit of net-mokers ($ 20 a month). There is a direct and positive correlation between the income earned and the rate of return on fishing gear. This paper uses financial means to classify the damage of each fishing tackle to fish and its habitat as four grades. The results show that the cost of the fishing tackle is the most serious damage to the environment, indicating that there is a difference between fishing tackle cost and environmental health Weigh trade-offs.