| 剩余产量模型在不同渔业中的应用 |
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| 引用本文： | 倪建峰,刘群.剩余产量模型在不同渔业中的应用[J].海洋湖沼通报,2004(1):60-67. |
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| 作者姓名： | 倪建峰 刘群 |
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| 作者单位： | 中国海洋大学水产学院,青岛,266003 |
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| 基金项目： | 国家自然科学基金面上项目 ( 30 2 710 2 5 )资助 |
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| 摘 要： | 剩余产量模型因其简单和所需数据较少的特点为渔业资源评估广泛采用.本文应用目前常用的四种剩余产量模型对五种渔业下的渔业生物种群及北大西洋箭鱼种群xiphias gladius评估效果作了比较.四种剩余产量模型在渔业1中的评估效果较好,而在渔业2中的效果较差;Schnute模型在充分捕捞的渔业,如渔业3、4、5,尤其是在低生物量的渔业3中评估效果较好,但不适合评估未充分捕捞的渔业.Walters-Hilborn模型(W-H模型)适用于各种渔业,尤其是渔业1、4、5.在过度捕捞渔业中如渔业3、4,模型对参数q的估计较其它参数接近真值.在北大西洋箭鱼(xiphias gladius)渔业的评估中,W-H模型对MSY的估计约为14000吨,接近于Prager(1996)的结果.
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| 关 键 词： | 剩余产量模型 模拟分析 |
| 文章编号： | 1003-6482(2004)01-0060-08 |
| 修稿时间： | 2003年3月26日 |
PERFORMANCES OF SURPLUS PRODUCTION MODELS IN DIFFERENT FISHING SCENARIOS |
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| NI Jianfeng,LIU Qun.PERFORMANCES OF SURPLUS PRODUCTION MODELS IN DIFFERENT FISHING SCENARIOS[J].Transaction of Oceanology and Limnology,2004(1):60-67. |
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| Authors: | NI Jianfeng LIU Qun |
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| Abstract: | Surplus production models, because of their simplicit and relatively undemanding of data, are attractive tools for many fish stock assessments. The paper compares the most popularly used surplus production models using simulated data and swordfish (xiphias gladius) fishery data in the North Atlantic Ocean. None of the four models could work well in scenario 2, an under-exploited stock.. However, the produced accurate results in scenario 1. The Schnute model worked well for fully-exploited stocks such as those in scenarios 3,4 and 5, especially for low biomass stocks such as scenario 3, but not suitable to under-exploited stocks such as scenario 2. The Walters-Hilborn model (W-H model) generally did well in all kinds of scenarios especially in scenrios 1,4, and 5. We have obtained accurate estimates of q for high fishing effort fisheries (scenarios 3,4). For swordfish (xiphias gladius) fishery, the estimation from the models produced and MSY of about 14500 tons, very near the result of Prager in 1996. |
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| Keywords: | Surplus production models simulation analysis |
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