Resultados de la búsqueda
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A spatial multi-species operating model of the Antarctic Peninsula krill fishery and its impacts on land-breeding
management units (SSMUs) in the Scotia Sea, to reduce the potential impact of fishing on land-based predators ... envelopes rather than in point estimate form, giving a truer reflection of the uncertainty inherent in ... Abstract: An updated version of the Spatial Multi-species Operating Model (SMOM) of krill ... advice regarding the subdivision of the precautionary catch limit for krill among 15 small-scale ...
Meeting Document : WG-SAM-07/12 : Autor(es): É.E. Plagányi and D.S. Butterworth (South Africa)
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Estimation of natural mortality using catch-at-age and aged mark-recapture data: a simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation
realistic. In simulation studies of multiple years of releases, both the BODE and CCODE models gave accurate ... bias in estimation of M for both the BODE and CCODE models. This problem was reduced so that bias in ... CCODE model estimates of M became progressively smaller as less “severe” selectivity was imposed in the ... other model parameters in integrated assessments via CASAL for the Heard and McDonald Islands (HIMI ...
Meeting Document : WG-SAM-10/11 Rev. 1 : Autor(es): S.G. Candy (Australia)
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By-catch of fish during a 1995/96 deep-sea longline experimental fishing cruise off the Kerguelen Islands (Division 58.5.1)
total catch in number. The grenadier Macrourus carinatus and two species of skates Bathyraja eatonii and ... and bathymetrical differences in the by-catch species distribution is noted. The mean abundances ... 1996. The by-catch has been identified with 10 species of fish reaching a important part (36,1%) of the ... Bathyraja irrasa are the dominant species in the by-catch. The morid Antimora rostrata is also a common by ...
Meeting Document : WG-FSA-96/36 : Autor(es): Pruvost, P., Duhamel, G.
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Diet of two icefish species from the South Shetland Islands and Elephant Island, Champsocephalus gunnari and Chaenocephalus aceratus 2001–2003
importance of other taxa (Themisto gaudichaudii, mysids, myctophids) in the diet was negligible. The average ... Abstract: The summer diet of two species of icefishes (Channichthyidae) from the South Shetland ... 2001 to 2003. C. gunnari fed almost exclusively on krill (Euphausia superba) in all years. The ... % body weight per day. Most of the stomachs of C. aceratus were empty. Stomachs with food contained ...
Meeting Document : WG-FSA-03/61 : Autor(es): H. Flores, K.-H. Kock, S. Wilhelms (Germany) and C.D. Jones (USA)
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Modeling the growth dynamics of Antarctic krill
resulted in the transfer of individuals to the next highest size class (growth), whereas negative net ... in the current literature. The model was forced with an environmental time series of food (pelagic ... that were consistent with observations of experimentally starved individuals. the annual change in ... designed to examine the effect of the ingestion of sea-ice algae in the late winter and early spring. The ...
Meeting Document : WG-EMM-96/68 : Autor(es): Lascara, C.M., Hofmann, E.E.
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Circumpolar connections between Antarctic krill (Euphausia superba Dana) populations: Investigating the roles of ocean and sea ice transport
critical food source and shelter, particularly in the early life stages. Advective modelling of transport ... potential roles of the ocean and sea ice in maintaining the observed circumpolar krill distribution. We show ... interaction with sea ice is important in determining the large-scale distribution of krill and its associated ... in the Southern Ocean. Krill have a close association with sea ice which provides access to a ...
Meeting Document : WG-EMM-07/P10 : Autor(es): S.E. Thorpe, E.J. Murphy and J.L. Watkins (United Kingdom)
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Estimating the abundance of pack-ice seals off east Antarctica
helicopters to estimate the density of seals hauled out on the ice in survey strips. The probability of ... Abstract: A survey was undertaken to provide estimates of the abundance of crabeater, Ross and ... leopard seal populations in 1,500,000 km2 of pack-ice off east Antarctica between longitudes 60-150oE ... -linked dive recorders were deployed on a sample of seals to estimate the probability of seals being ...
Meeting Document : WG-EMM-05/23 : Autor(es): C. Southwell (Australia), D. Borchers, C. Paxton (United Kingdom), B. de la Mare (Canada), P. Boveng (USA), A.S. Blix and E.S. Nordoy (Norway)
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Sensitivity analysis identifies high influence sites for estimates of penguin krill consumption on the Antarctic Peninsula
models of standing krill biomass and the design of a sustainable krill fishery for the Scotia Sea ... . Antarctic krill (Euphausia superba) is a significant component of diet for penguins breeding in this region ... in krill predation estimates. We use a comprehensive database of Antarctic penguin abundances to ... of pygoscelid penguins breeding in this region. We find that a high quality survey of Zavodovski ...
Meeting Document : WG-EMM-12/P02 : Autor(es): H.J. Lynch, N. Ratcliffe, J. Passmore, E. Foster and P. N. Trathan
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Proposal to standardise the submission of meeting documents to working groups
this would result in a standard set of guidelines for the submission of meeting documents to working ... Abstract: At the request of the Scientific Committee, the Secretariat has prepared a single ... reference document which provides guidelines for the submission of meeting documents to the Scientific ... Committee, WG-EMM and WG-FSA (including ad hoc WG-IMAF). In doing so, the Secretariat noted some Working ...
Meeting Document : WG-FSA-05/15 : Autor(es): Secretariat
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Experimental acoustic estimation of bathypelagic fishes biomasses from the South Georgia and Shag Rock shelf areas with trawl sampling (RV Atlantida, February 1996)
, data of biological and oceanologica3 researches are presented. The data on target strengths obtained in ... stations location, catch length compostion, per cent proportion of various fish species in trawls samples ... - situ for icefish (Champsocephalus gunnari), the latter per cent proportion in trawl catches, velocity ... and length-weight factors, affecting the genera3 estimation of biomass are analysed. Author(s ...
Meeting Document : WG-FSA-96/59 : Autor(es): Sunkovich, V. Yu., Frolkina, G.A., Severin, V.A., Abramov, A.M., Yorobyov, V.M., Polischuk, M.I., Bukatin, P.A., Shnar, V.N.