Résultats de la recherche
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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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Some aspects of the relation between Antarctic krill abundance and CPUE measures in the Japanese krill fishery
-swarm density. Search time data may be needed to assess the density of swarms in a concentration, but ... may be difficult to record in practice, and a number of other factors may complicate any analysis. The ... attention. A data sample from the Japanese krill fishery statistics data-base has been selected for further ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 109–125 : Auteur(s): Butterworth, D.S.
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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
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Progress report of the CEMP Special Fund project to develop an image processing software tool for analysis of camera network monitoring data
Abstract: We provide a brief update on the progress of our CEMP Special Fund project ‘Developing ... initiated with support from the CEMP Fund in 2015/16. A software programmer has been engaged and is ... community. We expect to complete a package of software and post-processing code by early 2018. Author(s): C ...
Meeting Document : WG-EMM-17/10 : Auteur(s): C. Southwell, L. Emmerson, K. Newbery, J. Hinke, G. Watters, M. Santos, G. Milinevsky, M. Korczak-Abshire, N. Ratcliffe and P. Trathan