Resultados de la búsqueda
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Extending the time series of catch-weighted length frequencies
use of CCAMLR data for D. eleginoides in Subarea 48.3 collected in the seasons 1992/93 and from 1994 ... from 1993/94 because of a mismatch in Flag State which presently occurs between the length and catch ... extended the existing time series of catch-weighted length frequencies for D. eleginoides in Subarea 48.3 ... an overlap of seasons. However there is a systematic difference in the overall number of fish ...
Meeting Document : WG-FSA-SAM-06/04 : Autor(es): David Ramm & Lydia Millar
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A single-area stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea for the 2004/05 season
). A range of model sensitivities were examined, with the base case assuming the Ross Sea fishery as a ... evidence of non-convergence, particular in the declining right-hand limb of the fishing selectivity ... this would have little impact on the estimates of key model parameters and yield estimates. MCMC ... estimates of initial (equilibrium) spawning stock abundance (B0) were 69 400 t (95% credible intervals 47 ...
Meeting Document : WG-FSA-05/33 : Autor(es): A. Dunn, D.J. Gilbert and S.M. Hanchet (New Zealand)
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Ecological implications of body composition and thermal capabilities in young Antarctic fur seals (Arctocephalus gazella)
source of energy and a major component of insulation that allow them to meet these demands. To examine ... the role of lipid stores in a high-latitude pinniped, the body composition and thermoregulatory ... capabilities of Antarctic fur seal (Arctocephalus gazella) pups and yearlings were measured via flow-through ... respirometry and hydrogen isotope dilution. From these data we constructed a model to examine the importance of ...
Meeting Document : WG-EMM-04/69 : Autor(es): M.R. Rutishauser, D.P. Costa, M.E. Goebel and T.M. Williams (USA)
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EVALUATION OF VME TAXA MONITORING BY OBSERVERS FROM FIVE VESSELS IN THE ROSS SEA REGION ANTARCTIC TOOTHFISH LONGLINE FISHERIES DURING THE 2008-09 SEASON
most areas south of 60 °S) to monitor longline bycatch for VME indicator organisms. Observers ... these samples for subsequent onshore classification by taxonomists. Comparison of the observer’s ... were reasonably accurate. Classification of two groups requires further development of training ... on the taxonomic composition and distribution of VME taxa in the Ross Sea region and elsewhere in the ...
Meeting Document : TASO-09/08 : Autor(es): Carter, M., Parker, S.J., Mormede, S., Tracey, D.M.
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Growth per molt of male snow crab Chionoecetes opilio from Conception and Bonavista Bays, Newfoundland
, Newfoundland, in order to estimate the increase in size at the time of molting. Ninety-two animals were ... recaptured which had usable information on growth increments. Based on the amount of growth, we hypothesized ... that 20 of these had molted once while the remainder molted twice. Two lines of evidence support this ... -molters. A nonlinear regression model was developed to estimate the parameters of the relationship between ...
Meeting Document : WS-CRAB-93/12 : Autor(es): D.M. Taylor and J.M. Hoenig (USA)
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Hydrological Conditions and Peculiarities of Glassfish Distribution on the South Georgia Island Shelf in 1986 1987
Abstract: Some peculiarities of spatial and temporal variability of the glassfish distribution on ... summarizing and analysis of hydrographic and commercial fishery and biological data for 1986-1987. Author(s ... ): V.N. Shnar and V.I. Shlibanov (USSR) Title: Hydrological Conditions and Peculiarities of Glassfish ...
Meeting Document : WG-FSA-89/15 : Autor(es): V.N. Shnar and V.I. Shlibanov (USSR)
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Evaluation of VME taxa classification by scientific observers from New Zealand vessels in the Ross Sea Antarctic toothfish longline fishery during the 2009/10 season
areas south of 60°S) to collect and monitor longline bycatch for VME taxa, and implement a move-on rule ... if required. To ensure effective monitoring, an evaluation of VME taxa classification by Scientific ... made to the classification guide, along with specific training, benefitted the accuracy of data ... collection. Comparison of the observer’s classification versus the taxonomist’s classification showed that ...
Meeting Document : TASO-10/10 : Autor(es): D.M. Tracey, M.E. Carter and S.J. Parker (New Zealand)
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Proposal for the establishment of a marine CCAMLR MPA in the Weddell Sea (Antarctica) – First conceptual outline
, the Commission welcomed the offer of Germany to take the lead in developing a Weddell Sea MPA for ... consideration in 2014. Subsequently, the German Federal Ministry of Food, Agriculture and Consumer Protection ... 2013. Here, in our first conceptual outline, we (i) present the principal target area of our evaluation ... study aiming at a Weddell Sea MPA, (ii) give a systematic overview of our preliminary data retrieval ...
Meeting Document : WG-EMM-13/22 : Autor(es): K. Teschke, B. Dorschel, J. Gutt, S. Hain, H. Hellmer, K. Jerosch, R. Knust, K.-H. Kock, M. Schlüter, V. Siegel and T. Brey (Germany)
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Updated description of Patagonian toothfish (Dissostichus eleginoides) tagging and ageing programs in Division 58.5.2, 1997–2015
Abstract: In 2014, CCAMLR endorsed a TAC of 4410 t of Patagonian toothfish in Division 58.5.2 ... , considerably adding to information on the structure of the population. The ageing program at AAD has produced ... an additional 2559 estimates of age, for fish captured during the 2014 and 2015 Random Stratified ... previous maximum age estimate of 42 years. These data have been used to develop age length keys and a ...
Meeting Document : WG-FSA-15/55 : Autor(es): D.C. Welsford, B. Farmer, T.D. Lamb, C. Péron, E. Woodcock and P.E. Ziegler (Australia)
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Spatial distribution and swarm characteristics of Antarctic krill around the South Shetland Islands
Abstract: The spatial distribution and swarm characteristics of Antarctic krill were studied ... , thickness and length of swarms were estimated from the 120kHz data. The full spatial distributions of ... majority of swarms were also found in the upper 100 m layer. The swarm-based method provides a promising ... way not only for biomass estimation but also for the study of swarm characteristics. Author(s): X. Yu ...
Meeting Document : WG-EMM-18/42 : Autor(es): X. Yu, X. Wang and X. Zhao