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Position: Home > Articles > Analysis on resources of Chinese shrimp Fenneropenaeus orientali in Tianjin sea area Fishery Modernization 2014,41 (2) 61-66

天津海域中国对虾资源量分析

作  者：
谷德贤;王婷;刘国山;刘茂利;王晓宇
单  位：
天津市水产研究所;天津渤海水产研究所
关键词：
天津海域;中国对虾;Δ-分布模型法;资源评估
摘  要：
根据2013年5、6、8、10月4个航次的底拖网调查结果,利用-分布模型法、扫海面积法、Cadina经验公式等,对天津海域中国对虾资源进行评估,并分析了其季节变化及分布情况。结果显示,调查海域5月未捕获中国对虾,6月中国对虾平均体重为4.31 g,平均体长75.82 mm,平均头胸甲长23.04 mm,8月中国对虾平均体重为23.82 g,平均体长143.33 mm,平均头胸甲长43.38 mm,10月捕获中国对虾1尾。中国对虾8月份平均资源密度最大,为1 502.94 ind/km2、43.31 kg/km2,其资源分布呈逐月向外海深水区推移的趋势,资源量分布重心:6月位于117°53.23'E、39°00.28'N,8月位于117°57.22'E、38°52.96'N,10月位于118°00'E、39°00'N。2013年天津海域中国对虾现存资源量为129.93 t,最大持续产量为212.20 t。
译  名：
Analysis on resources of Chinese shrimp Fenneropenaeus orientali in Tianjin sea area
作  者：
GU Dexian;WANG Ting;LIU Guoshan;LIU Maoli;WANG Xiaoyu;Tianjin Fisheries Research Institute;Bohai Fishery Research Institute of Tianjin;
关键词：
Tianjin sea area;;fenneropenaeus orientali;;delta-distribution model-based method;;biological characteristics fishery stock assessment
摘  要：
The resources of Chinese shrimps Fenneropenaeus orientali were surveyed with bottom trawl in May, June,August and October,2013,in Tianjin sea area. The results showed that,no Chinese shrimps were captured in May; the average carapace length,body length and body weight were respectively 23. 04 mm, 75. 82 mm,and 4. 31 g in June,and were respectively 43. 38 mm,143. 33 mm,and 23. 82 g in August; and only one Chinese shrimp was captured in October. The seasonal variation and distribution of Chinese shrimps were analyzed using Delta-distribution model-based method,sweeping area method,and Cadina Experience Formula. Based on the analyses above,the maximum values of monthly average resource density and biomass were 1 502. 94 ind / km2and 43. 31 kg / km2,appearing in August. The Chinese shrimps migrated from inner side to outer side of Bohai Bay by month,and the core area of the resources located at 117°53. 23'-118°00'E、 38°52. 96'-39° 00. 28' N. The standing crop and maximum sustainable yield( MSY) were 129. 93 t and 212. 20 t respectively,in Tianjin sea area.

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