Resultados de la búsqueda
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A distribution-free model of length-frequency distribution to inform fishery stratification for integrated assessments
hauls are an important input to integrated fish stock assessments. Statistical tests for variables that ... significantly influence the LFD helps in evaluating how to account for important differences in availability and ... set of length quantiles L for a predetermined set of corresponding probabilities P (in this instance ... (GAMM) with cubic smoothing splines fitted to P for each combination of the covariates (i.e. gear type ...
Meeting Document : WG-SAM-13/18 : Autor(es): S. Candy, P. Ziegler and D. Welsford (Australia)
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Spatial distribution of predator/prey interactions in the Scotia Sea: implications for measuring predator/fisheries overlap
for Antarctic krill Euphausia superba in the South Shetland Islands have used different measurement ... distribution of predators, krill and krill fisheries and an effort-corrected index of relative abundance as a ... function of distance from land was used to identify the characteristics of areas of high potential for ... within 100 km of land. The requirement of land for breeding and the biological and oceanographic ...
Meeting Document : WG-EMM-02/14 : Autor(es): K. Reid, M. Sims, R.W. White and K.W. Gillon (United Kingdom)
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Maturity stages for skates (Rajiformes)
Abstract: Current CCAMLR maturity stages for skates (Rajiformes) use a three-stage key. As such ... manual could lead to some confusion between fish at stage 2 and stage 3 (mature). Suggestions for ... updating the descriptions of the maturity stages for skates are provided, as is a rationale for considering ... a four-stage key that allows for the collection of data for fish that are at active stages of the ...
Meeting Document : CCAMLR-XXXIII/03 : Autor(es): J. R. Ellis, S.R. McCully Phillips and V. Laptivovsky (United Kingdom)
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Maturity stages for skates (Rajiformes)
Abstract: Current CCAMLR maturity stages for skates (Rajiformes) use a three-stage key. As such ... manual could lead to some confusion between fish at stage 2 and stage 3 (mature). Suggestions for ... updating the descriptions of the maturity stages for skates are provided, as is a rationale for considering ... a four-stage key that allows for the collection of data for fish that are at active stages of the ...
Meeting Document : WG-FSA-14/33 : Autor(es): J.R. Ellis, S.R. McCully Phillips and V. Laptivovsky (United Kingdom)
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A Proposal for a new Antarctic Specially Protected Area (ASPA)
Abstract: A proposal for a new Antarctic Specially Protected Area, Rosenthal Islands, Anvers ... Island, Palmer Archipelago, has been submitted by the United States for consideration at the 2019 Meeting ... of the Antarctic Treaty Consultative Meeting- Committee for Environmental Protection (ATCM XLII- CEP ... is submitted for consideration by WG-EMM. Author(s): P. Penhale Title: A Proposal for a new ...
Meeting Document : WG-EMM-2019/01 : Autor(es): P. Penhale
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Options for CCAMLR meeting duration and timing
Abstract: At CCAMLR-XXXVII, the Commission agreed that the timing and arrangements for its ... meetings could be a subject for further discussion at its meeting in 2019. This paper reviews past ... practices, explores three alternatives for shortening the meeting from 10 working days to 9 working days ... , and options for timing of the meetings that avoid any dates in November. Author(s): CCAMLR ...
Meeting Document : CCAMLR-38/BG/18 : Autor(es): CCAMLR Secretariat
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Stock size and tac estimation for the Patagonian toothfish, Dissostichus eleginoides, from the Kerguelen Islands area
Abstract: Biological data and fishery statistics collected in 1984-1992 were used for stock size ... area. Method of R. Jones (1964) was used for estimating population size and TAC. Calculations were done ... for the 1984/85 and 1991/92 seasons where directed fishery for the species took place. Population size ... of D. eleginoides for these seasons was estimated at 43-50 x 103 tonnes. TAC was estimated at 7.3-7.5 ...
Meeting Document : WG-FSA-92/09 : Autor(es): S.M. Pronenko, P.B. Tankevich, V.V. Gerasimchuk and V.N. Chikov (Ukraine)
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Fishing for structure; can we describe normal patterns in toothfish fishing operations using catch and effort data?
Abstract: We describe the typical steps involved in demersal longline fishing operations for ... and for error trapping or data validation. During this process we identified some unusual values for ... more difficult to evaluate given the wide range of influences that may affect recorded values for a ... given parameter. There are strong functional relationships identified between some of the variables. For ...
Meeting Document : WG-FSA-16/36 : Autor(es): J.M. Fenaughty and K. Large
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SUMMARY OF NOTIFICATIONS FOR KRILL FISHERIES 2011/12
Abstract: Six Members submitted notifications for a total 15 vessels for krill fisheries in ... 391,000 tonnes. There was no notification submitted for exploratory fisheries for krill in 2011/12. Author ... (s): Secretariat Title: SUMMARY OF NOTIFICATIONS FOR KRILL FISHERIES 2011/12 Approval: Approved ...
Meeting Document : WG-EMM-11/08 : Autor(es): Secretariat
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Simulating performance of trend analysis for setting catch limits in exploratory toothfish research plans
Abstract: Catch limits for toothfish in research blocks were set for the 2017/18 season using a ... developed and tested as a matter of priority for WG-SAM-18. We formalised and codified the rules and ... developed a simulation approach to examine the performance of the trend analysis rules for scenarios with ... high or low abundance, high or low uncertainty in biomass estimates, and for populations with ...
Meeting Document : WG-SAM-18/23 : Autor(es): S. Hoyle, S. Parker, A. Dunn and S. Mormede