Fluctuations and forecasts in the fishery for queen scallops (Aequipecten opercularis) around the Isle of Man     

Vause  B. J.; Beukers-Stewart  B. D.; Brand  A. R. 《ICES Journal of Marine Science》2007,64(6):1124-1135

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Mitochondrial DNA analyses of narrow-barred Spanish mackerel (Scomberomorus commerson) suggest a single genetic stock in the ROPME sea area (Arabian Gulf, Gulf of Oman, and Arabian Sea)     

Hoolihan  John P.; Anandh  Prem; van Herwerden  Lynne 《ICES Journal of Marine Science》2006,63(6):1066-1074

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Burrow density and stock size fluctuations of Nephrops norvegicus in a semi-enclosed bay     

Smith  C.J; Papadopoulou  K.-N 《ICES Journal of Marine Science》2003,60(4):798-805

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The collapse of cod in Eastern Canada: the evidence from tagging data   总被引：1，自引：0，他引：1  

Myers  R. A.; Barrowman  N. J.; Hoenig  J. M.; Qu  Z. 《ICES Journal of Marine Science》1996,53(3):629-640

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Climate variability and tropical tuna: Management challenges for highly migratory fish stocks     

Kathleen A. Miller 《Marine Policy》2007

The 1995 United Nations Fish Stocks Agreement facilitates the creation of regional fishery management organizations (RFMOs) to govern harvests of straddling and highly migratory fish stocks. The stability and success of these organizations will depend, in part, on how effectively they can maintain member nations’ incentives to cooperate despite the uncertainties and shifting opportunities that may result from climate-driven changes in the productivity, migratory behavior, or catchability of the fish stocks governed by the RFMO. Such climatic impacts may intensify incentives for opportunism, and create other management challenges for the RFMOs now governing tropical tuna fisheries in the Pacific and Indian Oceans.  相似文献   

对水产资源评估的两种世代分析方法比较     

刘群  曾晓起 《中国海洋大学学报(自然科学版)》1995,(4)

本文采取常用的种群评估方法，应用模拟数据比较研究了两种世代分析方法（ＶＰＡ）（Ｇｕｌｌａｎｄ（１９６５）ＶＰＡ方法和分离ＶＰＡ方法（ＰｏｐｅａｎｄＳｈｅｐｈｅｒｄ１９８２））。指出：在没有应用捕捞努力量调谐最近捕劳死亡率时，分离ＶＰＡ和ＧｕｌｌａｎｄＶＰＡ都不能正确反映实况；当使用调谐方法后，两种方法的结果都有所改善；对三组初始捕捞死亡率，Ｇｕｌｌａｎｄ方法给出相同结果；相反分离ＶＰＡ对不同初始值作出不同答案，但是在初始值接近真值时，分离ＶＰＡ的计算值较Ｇｕｌｌａｎｄ方法为好。  相似文献   

Changes in recruitment, growth, and stock size of northern shrimp (Pandalus borealis) at West Greenland: temperature and density-dependent effects at released predation pressure     

Wieland  Kai 《ICES Journal of Marine Science》2005,62(7):1454-1462

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Data-moderate assessments of Cape monkfish Lophius vomerinus and west coast sole Austroglossus microlepis in Namibian waters     

JN Kathena  A Kokkalis  MW Pedersen  JE Beyer  UH Thygesen 《African Journal of Marine Science》2018,40(3):293-302

There is global interest in providing scientific advice on optimal harvesting of all commercially exploited fish stocks. Nevertheless, many commercially important stocks lack analytical assessments. Therefore, we evaluate a data-moderate stock assessment method: the stochastic surplus production model in continuous time (SPiCT). The method was applied to two Namibian stocks: (i) the data-rich Cape monkfish Lophius vomerinus, where results are compared to a new data-rich assessment using a state–space assessment model (SAM); and (ii) the data-moderate west coast sole Austroglossus microlepis, which is an important bycatch species in the Cape monkfish fishery, but currently unassessed. The information available to the data-moderate assessment is total commercial catch, commercial catch per unit effort (CPUE), and survey CPUE. SPiCT and SAM gave largely consistent estimates of relative fishing mortality (F/F_MSY) and relative exploitable biomass (B/B_MSY) for the Cape monkfish stock, although with some discrepancies. Differences in the biomass estimates between the two assessments suggest that further investigation is required to understand the cause, and that some caution is necessary when considering the biomass of the stock. SPiCT shows that the west coast sole may be overexploited, although the confidence bounds were too wide for a firm conclusion. Similarity in the estimates of F/F_MSY for Cape monkfish in recent years, using SPiCT relative to SAM, likewise indicates the suitability of SPiCT for managing west coast sole.  相似文献   

闽江口及其附近海域棘头梅童鱼资源的研究   总被引：5，自引：0，他引：5  

黄良敏  李军  谢仰杰  张雅芝 《台湾海峡》2010,29(2):250-256

利用2006～2007年4个季节的底拖网捕捞渔获调查数据,对闽江口及附近海域底拖网鱼类中的棘头梅童鱼的资源状况进行了分析.结果表明：棘头梅童鱼在春季和冬季的渔获质量所占比例较高,分别为3.2%和4.8%;而夏季和秋季的渔获质量所占比例较低,分别为1.8%和1.5%.优势体长组为110～120mm;4个季节的资源密度波动于1.44～38.61kg/km2之间,其平均值为16.14kg/km2.4个季节的平均资源现存量约为58.09t,其中冬季资源量最大（138.99t）;资源密度在春、冬季明显高于夏、秋季;资源分布与水温、水深及盐度等环境因子关系密切.其喜栖息于低温、低盐和浅水海域,秋、冬季分布较广,部分出现离岸及南移现象.文中还应用ELEFAN技术分析了棘头梅童鱼的Von Bertalanffy生长参数（K）、极限体长（L∞）、总死亡系数（Z）、自然死亡系数（M）和开发率（E）,各指标值分别为0.60、183.75mm、2.42、0.69和0.71.这说明其生长较为迅速,但捕捞死亡率过高,已出现过度捕捞现象,应该加强保护以实现资源可持续再生与利用.  相似文献   

Fecundity of the European lobster (Homarus gammarus) off southwestern Norway after stock enhancement: do cultured females produce as many eggs as wild females?     

Agnalt  Ann-Lisbeth 《ICES Journal of Marine Science》2008,65(2):164-170

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