Resultados de la búsqueda
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CONVERSION FACTORS AND GREEN WEIGHT CALCULATION IN THE ANTARCTIC KRILL FISHERY
number of reasons:.; o Differences in the method of processing the same products o Seasonal variation o ... Spatial variation o Krill water content o Reporting errors (recording percentage recovered instead of ... total catch estimates as the majority of vessels interviewed made direct estimates of green weight ... catches; and, A need for closer monitoring of processing methods, calculation of green weight catches, and ...
Meeting Document : TASO-09/06 : Autor(es): Moir Clark, J., Peatman, T.
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Further krill-predator model calculations
Antarctic fur seal dataset. These calculations are extended here. The level of krill fishing intensity ... estimated previously. Tests of the estimation procedure indicate that γhalf estimates are likely to be ... biased upwards. The estimator is not robust to incorrect specification of the form of the functional ... relationship assumed between krill availability and survival rates, and especially not to the assumption of the ...
Meeting Document : WG-EMM-97/70 : Autor(es): Thomson, R.B., Butterworth, D.S.
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Krill catch distribution in relation to predator colonies, 1987-1991
Abstract: The distribution of krill catches in relation to predator colonies in Subareas 48.1 and ... 48.2 is shown. 74-90% of catches in Subarea 48.1 are taken within 100 km of predator colonies between ... December and March, and these are between 10 and 18% of the estimated total penguin consumption in this ... period. The pattern of fishing is very consistent in all years 1988-1991 in Subarea 48.1, but is more ...
Meeting Document : WG-KRILL-92/18 : Autor(es): Secretariat
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Australian research on Antarctic bird and seal diets
Abstract: Many data on the diets of important vertebrate predator species in Prydz Bay and around ... , Euphausia superba forms a rather low proportion of the diet of most vertebrate predators. Euphausia ... between prey species. The use of these predators to monitor the state of prey populations is thus very ... limited, although continuing studies will be useful to assess the natural varibility of the system. Around ...
Meeting Document : SC-CAMLR-VII/BG/32 : Autor(es): Delegation of Australia
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Estimating toothfish biomass in Subarea 48.3 using local depletions
Abstract: We investigated local depletions of toothfish under concentrated fishing effort as a ... means of estimating toothfish density at South Georgia. Over the four years 2000-2003, we found 25 areas ... of 12’ by 12’ where there had been forty or more hauls in any particular year. There were 62 ... individual vessel fishing events in these areas over this period, 40 of which appeared to be depletions ...
Meeting Document : WG-FSA-SAM-04/18 : Autor(es): Pearce, J., Agnew, D.
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CEMP data inventory and summary analysis
krill-based ecosystems to provide a basis for regulating harvesting of Antarctic living marine resources ... process and methods used to provide data extracts for analyses by Members as part of the development of ... approaches to feedback management. This report also includes a number of issues for consideration in relation ... to the clarification of the format for submitting data on penguin breeding population size and ...
Meeting Document : WG-EMM-16/08 : Autor(es): CCAMLR Secretariat
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Krill consumption by Adélie penguins in CCAMLR Divisions 58.4.1 and 58.4.2
Abstract: We estimate the total abundance of Adélie penguins foraging in Divisions 58.4.1 and ... 58.4.2 and provide preliminary estimates of krill consumed by breeding Adélie penguins in these Divisions ... using a newly developed bio-energetics model. Our estimate of ~6 million Adélie penguins substantially ... breeding population than was evident from previous work. The population of breeding Adélie penguins was ...
Meeting Document : WG-EMM-16/65 : Autor(es): C. Southwell and L. Emmerson
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Research concept on catchability to study toothfish abundance/stocks in the Antarctic marine areas
Abstract: Main two methods, which are used for the estimation of abundance/stocks of toothfish in ... CPUE data. But calculation of toothfish abundance with using these methods demands a number of ... assumptions, which sometimes broaden too much the possible values of the calculated parameters. The authors ... present a method approach concerning possible use of a bottom trawl survey to estimate a minimum ...
Meeting Document : WG-SAM-18/19 : Autor(es): K. Demianenko, L. Pshenichnov, O. Diripasko and V. Gurianov
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Información presentada por la República de Angola relativa a la eliminación del Northern Warrior de las listas de barcos de pesca INDNR
Abstract: This paper introduces the second request by Angola for the removal of the Northern ... Warrior from the NCP-IUU Vessel List and annexes the additional information in support of the request ... given to the inclusion of the vessel on the NCP-IUU list in 2016. Angola requested the removal of the ... benefit of all meeting participants including Observers. Author(s): CCAMLR Secretariat Title ...
Meeting Document : CCAMLR-XXXVII/34 : Autor(es): CCAMLR Secretariat
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Revisión del enfoque precautorio para garantizar el uso racional del recurso vivo Dissostichus eleginoides en la Subárea 48.3
. This paper reviews the long-term decline in the size structure of Patagonian toothfish (Dissostichus ... the start of the 2000s until now, longline fishing in the South Georgia area has targeted immature ... fish smaller than 100 cm. The issue of non-rational use of the Patagonian toothfish stock in Subarea ... 48.3 is examined. Author(s): Delegation of the Russian Federation Title: Revision of the ...
Meeting Document : CCAMLR-38/31 Rev. 2 : Autor(es): Делегация Российской Федерации