Resultados de la búsqueda
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The development of spatially and temporally controlled measures of survival and tag-detection for the CCAMLR tagging program
programme relies on two key aspects (i) that the tagged fish have a good chance of survival and (ii) that ... tagging performance in relation to these two aspects has been thus far inconclusive because of confounding ... . We propose that, by controlling for the spatial and temporal confounding factors using a case-control ... of survival and tag-detection for the CCAMLR tagging program Approval: Approved ...
Meeting Document : WG-SAM-12/30 : Autor(es): S. Mormede and A. Dunn (New Zealand)
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Acoustic manual for the krill synoptic survey in 2019
Abstract: The previously presented document at the 2018 ASAM WG meeting (ASAM-18-07) described a ... design and plans for a synoptic krill acoustic survey in CCAMLR area 48 in 2019. The survey involves the ... 2018 ASAM meeting, and describes acoustic procedures, acoustic reporting- analysis procedures and ... : Acoustic manual for the krill synoptic survey in 2019 Microsoft Word File: emm-18-12.docx Approval ...
Meeting Document : WG-EMM-18/12 : Autor(es): G. Macaulay, G. Skaret, T. Knutsen, O.A. Bergstad and B.A. Krafft
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Method of age determination for Antarctic toothfish (Dissostichus mawsoni)
December 2004 to March 2005 on the longliner “Volna”. Age was determined for 364 individuals. Currently ... Abstract: This work is based on material from Antarctic toothfish, collected in the Ross Sea from ... , 1982; Penttilla, Dery, 1988). According to the method, otolith is broken into two parts across the core ... the used method is appropriate for mass age determination for toothfish. Author(s): E.N. Kyznetsova ...
Meeting Document : WG-SAM-12/18 : Autor(es): E.N. Kyznetsova, A.F. Petrov and V.A. Bizikov (Russia)
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Revised reproductive analysis of Dissostichus mawsoni in SSRU 58.4.1 C for the Korean exploratory longline fishery in 2012/2013
categories, and almost 100% for the male in larger than TL 100 cm categories. Absolute fecundity on the total ... Abstract: In the Division 58.4.1 there are two stocks of Dissostichus mawsoni, which is ... analyze the reproductive ecology of Dissostichus mawsoni in SSRU 58.4.1C based on the histological methods ... as a part of Korean research plan for Dissostichus spp. in SSRUs 58.4.1 C and E during 2012/2013 ...
Meeting Document : WG-FSA-13/45 : Autor(es): I.J. Yeon, J.S. Lee, Y.J. Kwon, M.A. Jeon, S.K, Choi, K.J. Seok, D.W. Lee, K.Y. Ku and H.J. Kim (Republic of Korea)
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Comparison of estimators of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial Distribution
stocks. An appropriate and accurate estimate of the ESS for catch frequency data for each fishery and ... this simulation model. Two existing methods are based on the lack-of-fit of predictions of class ... parameter. This last method generally gave the best estimator of an ESS that is appropriate for haul-level ... an order of magnitude worse than the best two haul-level methods. When process error was incorporated ...
Meeting Document : WG-SAM-07/7 : Autor(es): S.G. Candy (Australia)
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Data requirements for research fishing
Abstract: There are currently two sets of requirements for reporting data from vessels conducting ... research fishing being reported on a separate form. Author(s): Secretariat Title: Data requirements for ... fishing for research purposes (i.e. research fishing): (1) research fishing conducted under Conservation ... Measure 24-01 (scientific research) requires that catch, effort and biological data be reported on a haul ...
Meeting Document : WG-SAM-12/07 : Autor(es): Secretariat
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Conflict or co-existence? Foraging distribution and competition for prey between Adélie and chinstrap penguins
between the two species, however, in a year of normal resource availability (2001) there was no such ... the South Sandwich Islands to the Antarctic Peninsula. To investigate how these two species co-exist ... penguins and 24 chinstrap penguins were used to compare foraging distributions. In both years the diet of ... segregation. There was a significant difference in the foraging areas used by Adélie penguins between years ...
Meeting Document : WG-EMM-02/15 : Autor(es): A.S. Lynnes, K. Reid, J.P. Croxall and P.N. Trathan (United Kingdom)
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A method for estimating recruitment and mortality from time series of length-density data
-likelihood function based on one or more cohorts for which their abundance has been estimated in two or more ... years. A worked example is provided in an appendix. Author(s): A. Constable and I. Ball (Australia ... Abstract: Estimates of natural mortality are currently unavailable for Patagonian toothfish. Such ... estimates are needed for estimating recruitments and for use in assessing yield. This paper proposes a ...
Meeting Document : WG-FSA-00/52 : Autor(es): A. Constable and I. Ball (Australia)
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ALLOCATING THE PRECAUTIONARY CATCH LIMIT FOR KRILL AMONGST THE SMALL-SCALE MANAGEMENT UNITS IN AREA 48: THE IMPLICATIONS OF DATA UNCERTAINTIES
Abstract: Over the past few years WG-EMM has been developing a management procedure for the krill ... - subdivision based on the distribution of historical catches). In recognising the need for a “staged ... candidate methods for subdividing the catch limit and rejected one of them as unsuitable (Option 1 ... of two further options (Option 5- adjustable catch limits within SSMUs and Option 6- structured ...
Meeting Document : WG-EMM-08/12 : Autor(es): P.N. Trathan and S.L. Hill (United Kingdom)
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Rajid by-catch in the longline fishery for toothfish in Subarea 48.3
Rocks and South Georgia, achieved average catch rates of over 1 ray/thousand hooks, and 20-30 rays ... preliminary analysis of data collected by UK scientific observers on vessels fishing toothfish in Subarea 48.3 ... 34.7/thousand hooks for toothfish and 2.2/thousand hooks for grenadier species. Generalised linear ... models demonstrated that there are significant differences between the catch rates of rays for different ...
Meeting Document : WG-FSA-99/40 : Autor(es): D.J. Agnew, J. Taylor and I. Everson (United Kingdom)