Résultats de la recherche
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Stomach flushing of Adelie penguins (CEMP Method A8)
Abstract: This paper describes in detail a method for obtaining food samples from Pygoscelid ... penguins and some suggested modifications to CEMP Standard Method A8. It proposes a new method for draining ... . Previous papers which have reported diet composition on the basis of a single regurgitate per bird are ...
Meeting Document : WG-EMM-95/32 : Auteur(s): Clarke, J.
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Dynamic model of krill Euphausia superba swarm
insects appear to disperse according to a reaction diffusion model with a constant diffusion coefficient ... . It was found that the vertical density pattern of krills' swarm, with a mean density of up to ...
Meeting Document : WG-EMM-95/68 : Auteur(s): Kalinowski, J., Azzali, M.
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Performance and geometry of the FP-120 trawl used during the UK 1993/94 fish stock assessment survey around South Georgia, Subarea 48.3
Abstract: Methods for the calculation of the horizontal opening (swept area) of a bottom trawl ... and trawI depth. A new multiple regression equation is compared to that used previously for the ... biomass estimates is of the order of a 1% to 5% increase, depending upon species. Author(s): G. Pilling ...
Meeting Document : WG-FSA-94/23 : Auteur(s): G. Pilling and G. Parkes (United Kingdom)
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Diagnostic model of functioning of Antarctic krill population in the Cooperation Sea
Abstract: Being prepared by a collective of authors, this paper demonstrates some approaches to ... assess variations in parameters of the ecosystem and its staunchness against their impact. A possibility ... is shown to apply logical-information modelling for future creation of a prognostic model of ...
Meeting Document : WG-Joint-94/07 : Auteur(s): V. Belyaev and M. Khudoshina (Ukraine)
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Age and growth of Antarctic Euphausiacea (Crustacea) under natural conditions
species Euphausia triacantha, and a three-year life span proposed. Male Euphausia crystallorophias have a ... shorter life span than females, while their growth rate is similar. A short description of the life cycle ...
Meeting Document : SC-CAMLR-VI/BG/24 : Auteur(s): V. Siegel (FRG)
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Feasibility of trawl surveys to estimate abundance of juvenile toothfish in Subarea 88.1
Abstract: This report presents results from a desktop study to determine the feasibility of ... conducting trawl surveys for juvenile toothfish in Subarea 88.1 (Ross Sea). Potential problems including a ... and previous research cruises. The major limitation on a trawl survey in the Ross Sea is ice cover. On ...
Meeting Document : WG-FSA-SAM-04/07 : Auteur(s): Wood, B.A., ODriscoll, R.L., Hanchet, S.M.
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Application of continuous time Markov chains to modelling animal movement: estimation of movement rates and retention times for Patagonian toothfish
Abstract: The study of animal movement and distribution has been a central focus in ecology since ... little application in data analyses or prediction in studies movement. Here we develop a continuous time ... , discrete state stochastic model, a continuous time Markov chain (CTMC), for analyzing movement data ...
Meeting Document : WG-FSA-SAM-06/16 : Auteur(s): C. Wilcox, M. Bravington and D. Peel (Australia)
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Have Antarctic toothfish returned to McMurdo Sound?
Abstract: A dramatic reduction in catch rates of Antarctic toothfish in McMurdo Sound, Antarctica ... , results from a new monitoring programme for Antarctic toothfish and other top predators carried out in ... following a temporary environmentally driven absence or that they remained locally present but were not ...
Meeting Document : WG-FSA-15/P01 : Auteur(s): S.J. Parker, S. Mormede, A.L. DeVries, S.M. Hanchet and R. Eisert
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Krill consumption by Adélie penguins in CCAMLR Divisions 58.4.1 and 58.4.2
using a newly developed bio-energetics model. Our estimate of ~6 million Adélie penguins substantially ... revises known abundance upwards by including the large non-breeding population and estimating a larger ... estimated to consume 193,300 (57,700 – 313,700) tonnes of krill during a breeding season (November (arrival ...
Meeting Document : WG-EMM-16/65 : Auteur(s): C. Southwell and L. Emmerson
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Density and geographical distribution of krill larvae on the Weddell – Scotia Confluence region during summer 2011
Confluence region show a strong decrease in the abundance of Euphausia superba larvae and an increase in ... values at a fixed grid of points. Significance of the differences was established using a binomial test ...
Meeting Document : WG-EMM-16/51 : Auteur(s): E. Rombolá, C. Franzosi, G. Tossonotto, V. Alder and E. Marschoff