Search results
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The effect of sample size on the observed length distribution of Antarctic krill
during the 2015/2016 fishing season. The variation of statistical property of krill length distribution ... of krill length distribution, including unimodal, bimodal, left-skewed and right-skewed unimodal ... individuals,the mean and coefficient of variance (CV) of the krill length distribution mightnot be very ... sensitive to the size of the samples. Author(s): Delegation of China Title: The effect of sample size on ...
Meeting Document : SC-CAMLR-XXXVI/21 : Author(s): Delegation of China
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Using tag-recapture data to estimate catchability of a series of random stratified trawl surveys
Abstract: For the 2014 assessment of Patagonian toothfish (Dissostichus eleginoides) around the ... Heard Island and McDonald Islands (HIMI) in Division 58.5.2, a prior for catchability q of the random ... stratified trawl survey (RSTS) was estimated by comparing abundance estimates of the survey with abundance ... address potential bias in the estimation of q and conclude that the potential bias that may arise from ...
Meeting Document : WG-SAM-15/34 : Author(s): W. de la Mare, P. Ziegler and D. Welsford (Australia)
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Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons
Abstract: Following on from the apparent failure to satisfactorily assess the status of the C ... , dominated in recent years by the 1987 year class (1 year olds in 1988), was quite robust, despite the use of ... various combinations of survey and cpue indices for tuning. According to the VPA the population in 1991/92 ... was composed of a large proportion of 5 year olds, which was not observed during the survey on ...
Meeting Document : WG-FSA-92/27 : Author(s): G. Parkes (United Kingdom)
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Brief report on results of experimental harvest regime for the exploratory fishery for crab in the area of the South Orkney Islands (CCAMLR Subarea 48.2) during the 2009/10 season
Abstract: From March, 23 till April, 1, 2010 during the cruise of the Russian crabber vessel ... " Tamango " in CCAMLR zone, the searching operations were carried out in the area of the ... statistical subarea 48.2. Judging by insignificant catch crabs, state of benthic fauna and very small fish by ... -catch in traps, one can assume that highly expressed seasonality is present in vital activity of benthos ...
Meeting Document : WG-FSA-10/44 : Author(s): Yu.V. Korzun and S.E. Anosov (Ukraine)
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Progress report on the scientific data compilation and analyses in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica)
Abstract: At the CCAMLR meeting in 2012, the Commission welcomed the offer of Germany to take the ... Ministry of Food, Agriculture and Consumer Protection tasked the Alfred Wegener Institute, Helmholtz Centre ... . Germany intends to update the Scientific Committee on the actual state of our project, particularly on the ... main proceeds of a national data workshop held in Bremerhaven early September 2013. The main objectives ...
Meeting Document : SC-CAMLR-XXXII/BG/07 : Author(s): Delegation of Germany
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Re-analysis of CPUE in both species of toothfish in 48.6 area
Abstract: The present report re-analyses data regarding CPUE for both species of toothfish in ... northern area of 48.6 (SSRU 48.6A, 48.6G). This report is a re-analysis of the CPUE time series proposed in ... . Here, the length of the line was used as effort unit and also high CPUE values reported by a Korean ... analysis of catch intention was implemented by using multivariate statistical approach of the catch ...
Meeting Document : WG-FSA-13/63 : Author(s): R. Wiff, J.C. Quiroz (Chile) and R. Scott (United Kingdom)
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ANALYSIS OF VARIABILITY OF KRILL SIZE AND FISH BY-CATCH IN JAPANESE KRILL FISHERY BASED ON SCIENTIFIC OBSERVER DATA
Abstract: To investigate spatio-temporal variability of krill body length and number of bycatch ... hierarchical Bayesian model. The model was composed of multistage cluster units (i.e., years, subarea, vessels ... variability of krill population structure and a difficulty in predicting krill population dynamics. Variances ... of krill length and bycatch fish number by sampling stages were calculated by the multistage sampling ...
Meeting Document : WG-EMM-11/39 : Author(s): T. Okuda and M. Kiyota (Japan)
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Results of the seventh Ross Sea shelf survey to monitor abundance of Antarctic toothfish in the southern Ross Sea, January 2018, and notification for research in 2018/19
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... this paper we provide results of the seventh annual survey in the time series. The objectives of this ... survey included monitoring sub-adult (≤ 110 cm TL) toothfish in the south of SSRUs 881.J and 881.L in the ... larger (large sub-adult and adult) toothfish in two areas (both situated in SSRU 881.M) of importance to ...
Meeting Document : WG-SAM-18/10 : Author(s): D. Stevens, X. Fu, S. Mormede and S. Parker
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Diet composition and feeding strategy of Antarctic toothfish, Dissostichus mawsoni in the research blocks 58.4.2-1, 58.4.1-2, 58.4.1-3, 58.4.1-4, and 58.4.1-5 for the exploratory longline fishery in 2014/2015 of Korea
Abstract: The stocks of Antarctic toothfish, Dissostichus mawsoni were a relatively economically ... and ecologically important fishery resource in the waters of Antarctic. However, there is not enough ... feeding strategy of D. mawsoni in the research blocks 58.4.2-1, 58.4.1-2, 58.4.1-3, 58.4.1-4, and 58.4.1-5 ... as a part of Korean research plan for the exploratory longline fishery for Dissostichus spp. during ...
Meeting Document : WG-FSA-15/57 : Author(s): Delegation of the Republic of Korea
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Updated assessment of the risks of status quo krill fishing and proposed revisions to Conservation Measure 51-07
Abstract: We used an ecosystem model to assess the risks of 1) the most recent distribution of ... . Our results show that the concentration of fishing effort since 2009 increases the risks that predator ... exacerbated by increased catches in Subarea 48.1. We briefly discuss the implications of our results and ... alternative approaches for spatial management of the krill fishery. Author(s): Delegation of the USA Title ...
Meeting Document : SC-CAMLR-XXXV/BG/36 : Author(s): Delegation of the USA