Résultats de la recherche
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Do Adélie penguin fledgling weights provide an index of prey availability?
. The concerns raised by Williams and Croxall (1990) that fledgling weight may increase with an ... as strong for the crèche foraging trips later in the season. Fledgling weights which are measured at ... earlier trips. We interpret these results as an indication of variable resources between the guard and ... fledgling weight. For example, low breeding success could occur in a season with heavy fledglings associated ...
Meeting Document : WG-EMM-05/21 : Auteur(s): L. Emmerson, C. Southwell and J. Clarke (Australia)
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An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 and 88.2 up to 2005/06
data for non-New Zealand vessels for the 2005-06 season for the first time. However, tag data were ... still only available for about half of the non-New Zealand vessels for 2003-04. A reported total of 10 ... ;80%) of Antarctic toothfish have moved less than 50 km. Sub adult fish (80–100 cm) have tended to ... increased the size of toothfish being tagged so that for the first time the size distribution of the tagged ...
Meeting Document : WG-FSA-06/34 : Auteur(s): A. Dunn and S.M. Hanchet (New Zealand)
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An updated assessment of unicorn icefish (Channichthys rhinoceratus) in Division 58.5.2, based on results from the 2015 random stratified trawl survey
and yield for the area of Division 58.5.2 to the west of 79°20’ E using standard CCAMLR methods. Short ... term projections (20 year) indicate sustainable yield of 1663 t. Author(s): D. Maschette and J. Dell ... provides both short (2 years) and long term (20 years) projections of unicorn icefish structure, abundance ... May 2015. Recent work which is presented here has allowed for many of the biological parameters of ...
Meeting Document : WG-FSA-15/50 : Auteur(s): D. Maschette and J. Dell (Australia)
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Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric parameter?
Abstract: In sexually dimorphic species, morphometric parameters have separate distributions for ... normal distributions are used to show that there is a difference between the real mean parameter for a ... functions are able to correctly determine the sex of birds with greater than 80% success the difference ... . Combining all data for both sexes is considered as a procedure for avoiding the necessity of sex ...
Meeting Document : WG-CEMP-92/11 : Auteur(s): D.J. Agnew (Secretariat)
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The biology and ecology of mackerel icefish, Champsocephalus gunnari – an Antarctic fish species that lack haemoglobin
ability to reproduce at an early age coupled with a comparatively high fecundity and growth performance ... and age at first spawning, natural mortality and life expectancy from those on more southerly grounds ... ): Everson, I., Kock, K.-H. Title: The biology and ecology of mackerel icefish, Champsocephalus gunnari – an ... some years. Champsocephalus gunnari has many characteristics typical of Antarctic fish species with ...
Meeting Document : WG-FSA-96/24 : Auteur(s): Everson, I., Kock, K.-H.
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Designation of an MPA in East Antarctica
Author(s): Delegation of the Russian Federation Title: Designation of an MPA in East Antarctica ... Microsoft Word File: cc-xxxiv-bg-30.docx Approval: Approved Secretariat Workflow Status: Content Approved ...
Meeting Document : CCAMLR-XXXIV/BG/30 : Auteur(s): Delegation of the Russian Federation
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An overview of tagging skates (Rajiformes) and CCAMLR skate tagging data
CCAMLR Working Groups. This report provides an overview of global tagging studies on skates, a review of ... conducted in the CCAMLR area for several years now, only preliminary observations have been presented to ... data for skates from European waters to inform on typical return rates and initial observations on some ... data quality and suggestions for future work. Author(s): S.R. McCully, D. Goldsmith, G. Burt, R. Scott ...
Meeting Document : WG-SAM-13/25 Rev. 1 : Auteur(s): S.R. McCully, D. Goldsmith, G. Burt, R. Scott and J.R. Ellis (United Kingdom)
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An overview of tagging skates (Rajiformes) and CCAMLR skate tagging data
CCAMLR Working Groups. This report provides an overview of global tagging studies on skates, a review of ... conducted in the CCAMLR area for several years now, only preliminary observations have been presented to ... data for skates from European waters to inform on typical return rates and initial observations on some ... data quality and suggestions for future work. Author(s): S.R. McCully, D. Goldsmith, G. Burt, R. Scott ...
Meeting Document : WG-FSA-13/33 : Auteur(s): S.R. McCully, D. Goldsmith, G. Burt, R. Scott and J.R. Ellis (United Kingdom)
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Interactions between seabirds and deep water hake trawl gear: an assessment of impacts in South African waters 2004/05
during 20 trips on 14 vessels between mid-2004 and end 2005. Long-winged albatrosses were killed most ... dumping in summer. Serious warp incidents were independent of age among albatrosses, but there was a ... tendency for immature gannets to have a higher interaction rate than adults. Deaths resulting from ... entanglement in fishing nets occurred at an average rate of 3.02 (0.91-5.44) birds per 100 trawls. Estimating ...
Meeting Document : WG-FSA-06/41 : Auteur(s): B.P. Watkins, S.L. Petersen and P.G. Ryan (South Africa)
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Discussion on recent results from an integrated assessment of Antarctic krill (Euphausia superba) in Subarea 48.1
(either decreasing or increasing) in krill biomass have not been apparent over the past 30+ years ... -assessment framework for Antarctic krill (Euphausia superba) to assimilate multiple sources of survey data ... from three of the models provide a robust picture of changes in the krill population. An annual model ... consider how the integrated assessment framework can be used to provide management advice for the krill ...
Meeting Document : WG-EMM-14/35 : Auteur(s): G.M. Watters, C.S. Reiss and D. Kinzey (USA)