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Applying the Catch-MSY model to the stock assessment of the northwestern Pacific saury Cololabis Saira 被引量:4
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作者 SHI Yongchuang HUA Chuanxiang +2 位作者 ZHU Qingcheng HUANG Shuolin FENG Huili 《Journal of Oceanology and Limnology》 SCIE CAS CSCD 2020年第6期1945-1955,共11页
The Pacific saury(Cololabis saira)is one of the major harvested species in the temperate waters of the northwestern Pacific Ocean(NPO).The Catch-MSY model uses catch data and basic life history information to estimate... The Pacific saury(Cololabis saira)is one of the major harvested species in the temperate waters of the northwestern Pacific Ocean(NPO).The Catch-MSY model uses catch data and basic life history information to estimate the Maximum Sustainable Yield(MSY)for data-limited fisheries.Since there is considerable uncertainty in the current status of the Pacific saury stock in the NPO,the Catch-MSY model was used in this study to estimate MSY on the basis of catch data and life history information from the North Pacific Fisheries Commission(NPFC).During the process,17 scenarios,according to different prior distributions of the intrinsic rate of increase(r)and carrying capacity(K),were set for sensitivity analysis.Moreover,the influence of different catch time series and different process errors were taken into account.The results show the following:(1)there was a strong negative correlation relationship between ln(r)and ln(K);the MSY increases with an increase in the lower limit of r;(2)The time series of catch data had a limited impact on the assessment results,whereas the results of the model were sensitive to the annual catch in the first and last years;(3)The estimated MSYs of the Pacific saury were 47.37×10^4 t(41.57×10^4 t to 53.17×10^4 t)in scenario S1A and 47.53×10^4 t(41.79×10^4 t to 53.27×10^4 t)in scenario S1B.Given the uncertainty of the Catch-MSY model,maintaining a management target between 50×10^4 t and 70×10^4 t was a better management regulation.This study shows that the Catch-MSY model is a useful choice for estimating the MSY of data-limited species such as the Pacific saury. 展开更多
关键词 cololabis saira Catch-MSY model intrinsic rate of increase maximum sustainable yield northwest Pacific Ocean
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Microbiota and Shelf Life of Whole and Gutted Pacific Saury(Cololabis saira) During Refrigerated Storage
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作者 CAO Rong LIN Ruihuan +1 位作者 SUN Huihui LIU Qi 《Journal of Ocean University of China》 SCIE CAS CSCD 2020年第2期473-478,共6页
Pacific saury(Cololabis saira)is usually sold as whole fish in wholesale markets,or in its gutted form which is easy for consumers to cook in retail markets.In order to assess the effect of gutting on the shelf life o... Pacific saury(Cololabis saira)is usually sold as whole fish in wholesale markets,or in its gutted form which is easy for consumers to cook in retail markets.In order to assess the effect of gutting on the shelf life of Pacific saury during refrigerated storage and reveal the microbial community,fish samples grouped into(I)whole fish and(II)gutted fish were analyzed periodically for sensory,biochemical and microbiological characteristics,and high-throughput sequencing technology was used to investigate the microbiota.Results showed that the sensory score for the gutted fish became unacceptable on day 8,while the whole fish score remained acceptable for 10 days.The total volatile basic nitrogen(TVB-N)value of the gutted fish reached 30 mg N(100 g)^-1 on day 6,while that of the whole samples surpassed 30 mg N(100 g)^-1 on day 10.The thiobarbituric acid reactive substances(TBARS)value of the gutted fish got close to 5.0 mg kg^-1 on day 10,while that of the whole samples surpassed 5.0 mg kg^-1 on day 14.The aerobic plate colony counts(APCs)for the gutted and whole Pacific saury reached 7.0 log10 CFUg^-1 on days 6 and 10,respectively.Organoleptic,biochemical and microbiological analyses revealed that shelf-lives should be 6–8 days for gutted fish and 10 days for whole fish.Microbiota analysis results showed that gutting partly changed the initial microbiota,but didn't alter the dominant bacteria during storage.When the fish were spoiled,high proportion of Pseudomonadaceae was detected in both groups. 展开更多
关键词 cololabis saira gutting shelf life MICROBIOTA
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北太平洋秋刀鱼渔场与水温垂直结构的关系 被引量:1
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作者 张培超 张孝民 +1 位作者 陈丙见 李凡 《河北渔业》 2022年第6期35-39,44,共6页
根据2019年7—12月我国大陆秋刀鱼(Cololabis saira)渔船生产数据,对秋刀鱼渔场与水温垂直结构的关系进行了分析。首先,运用信息增益技术(IGT)分析了影响CPUE的6个水温因子,各因子按影响大小排序依次是12.5 m水层温度(T_(12.5))、0~12.... 根据2019年7—12月我国大陆秋刀鱼(Cololabis saira)渔船生产数据,对秋刀鱼渔场与水温垂直结构的关系进行了分析。首先,运用信息增益技术(IGT)分析了影响CPUE的6个水温因子,各因子按影响大小排序依次是12.5 m水层温度(T_(12.5))、0~12.5 m水温的垂直梯度(△_(T0-12.5))、12.5~37.5 m水温的垂直梯度(△_(T12.5-37.5))、海表面温度(T_(0))、37.5~62.5 m水温的垂直梯度(△_(T37.5-62.5))和37.5 m水层温度(T_(37.5))。然后,用频度分析的方法确定了影响秋刀鱼渔场分布的六个水温因子的适宜范围,分别是:T_(12.5)为7~12℃,△T_(0-12.5)为(1~3)×10^(-2)℃/m,△T_(12.5-37.5)为(3~4)×10^(-2)℃/m,T_(0)为10~16℃,△T_(37.5-62.5)为(2~3)×10^(-2)℃/m,T_(37.5)为6~10℃。研究结果显示12.5 m水层温度(T_(12.5))比海表面温度(T_(0))对秋刀鱼渔场的分布有更大的影响,以后应加强研究12.5 m水层及其附近水层温度与秋刀鱼渔场的关系。 展开更多
关键词 信息增益 水温垂直结构 秋刀鱼(cololabis saira) 渔场 北太平洋
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