淀山湖鱼类生物多样性调查样本量的优化设计
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- 英文论文题名：Sample Size Requirement for Estimating Species Richness of fishes in Dianshan Lake
- 论文作者：王家启 ; 戴小杰 ; 王坤 ; 王浩展 ; 田思泉
- 英文论文作者：WANG Jiaqi ; DAI Xiaojie ; WANG Kun ; WANG Haozhan ; Tian Siquan ; College of Marine Science ; Shanghai Ocean University ; Collaborative Innovation Center for Distant-water Fisheries ; National Distant-water Fisheries Engineering Research Center ; Shanghai Ocean University ; The Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources ; Ministry of Education ; Shanghai Ocean University
- 年：2016
- 作者机构：上海海洋大学海洋科学学院;远洋渔业协同创新中心;上海海洋大学国家远洋渔业工程技术研究中心;上海海洋大学大洋渔业资源可持续开发省部共建教育部重点实验室;
- 论文关键词：渔业资源 ; 样本量 ; 探测率 ; 物种多样性 ; 优化
- 英文论文关键词：fishery resources ; sample size ; probability of detection ; diversity of species ; optimization
- 会议召开时间：2016-11-02
- 会议录名称：2016年中国水产学会学术年会论文摘要集
- 语种：中文
- 分类号：S932
- 学会代码：OGSB
- 会议名称：2016年中国水产学会学术年会
- 会议地点：中国四川成都
- 主办单位：中国水产学会、四川省水产学会
- 学会名称：中国水产学会
- 页数：1
- 文件大小：505k
- 原文格式：D
- 会议级别：全国
摘要
渔业资源调查中样本量或站点数的选择影响估算渔业资源特征的准确度和精确度。本文以2010年7月~2011年6月淀山湖渔业资源调查数据为基础,利用重采样方法,估算淀山湖渔业资源最优调查频次和最佳站点数。研究结果显示:2010年7月~2011年6月年捕获的鱼类种数为45种;在保持调查物种比例不变、探测率不变的情况下,采样频次越少,每次调查需要设置的站点数就越多;95%的概率捕获90%的物种,每年调查12次和每年调查11次分别需要设置19和21个站点。每年调查12次,Shannon-Wiener多样性指数随着每次调查站点数的增多而变大,增长到一定程度之后逐渐趋于稳定,淀山湖鱼类群落的物种多样性调查最佳站点数为21。本文的研究方法和结果可以为其它类似研究提供借鉴。
Sample size plays a significant role in determining accuracy and precision for estimates of fisheries population dynamics or fish communities. A fisheries survey that estimated the fish community in Dianshan Lake was conducted as a case study to determine the necessary the sample size requirement for such estimates. Monthly surveys of 24 survey stations in Dianshan Lake were conducted from July, 2010 to June, 2011, resulting in the collection of 45 fish species from 14 families. A resampling technique was used to estimate the optimal survey times and number of survey stations for a Dianshan Lake fishery survey. Results reflected the inverse relationship between the number of stations and number of samples needed to maintain a 90%fixed percentage of fish species detection and 95% fixed probability of detection within the fishery survey. The sample sizes required for these fixed percentages were 19 and 21 stations sampled 11 and 12 times per year, correspondingly.
Sample size plays a significant role in determining accuracy and precision for estimates of fisheries population dynamics or fish communities. A fisheries survey that estimated the fish community in Dianshan Lake was conducted as a case study to determine the necessary the sample size requirement for such estimates. Monthly surveys of 24 survey stations in Dianshan Lake were conducted from July, 2010 to June, 2011, resulting in the collection of 45 fish species from 14 families. A resampling technique was used to estimate the optimal survey times and number of survey stations for a Dianshan Lake fishery survey. Results reflected the inverse relationship between the number of stations and number of samples needed to maintain a 90%fixed percentage of fish species detection and 95% fixed probability of detection within the fishery survey. The sample sizes required for these fixed percentages were 19 and 21 stations sampled 11 and 12 times per year, correspondingly.
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