Résultats de la recherche
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Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons
of recaptured crabs and the movement of crabs away from their release sites. Density estimates from ... Abstract: Data collected from the FN American Champion during Phases 1 and 2 of the experimental ... crab fishery were analyzed with generalized additive models and depletion estimators. Results from the ... generalized additive models show that the density of fishable P. spinosissima is highest off the northern ...
Meeting Document : WG-FSA-96/34 : Auteur(s): Watters, G.
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Report on the status of wandering, black-browed and grey-headed albatrosses at South Georgia
albatrosses were carried out at South Georgia in the 2003/04 breeding season. Wandering albatrosses were ... -headed albatrosses were breeding at South Georgia in the 2003/04 season. Compared to results from a ... predominantly yacht-based survey of black-browed and grey-headed albatrosses over the whole of South Georgia ... conducted in the mid 1980s, numbers of these two species appear to have decreased by 26% and 14 ...
Meeting Document : WG-FSA-04/71 : Auteur(s): S. Poncet (United Kingdom),G. Robertson (Australia), R. Phillips (United Kingdom), K. Lawton (Australia), B. Phalan, J. Croxall and P. Trathan (United Kingdom)
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Post-fledging and winter migration of Adélie penguins (Pygoscelis adeliae) in the Mawson region of east Antarctica
were satellite-tracked using the Argos system during the winters of 1995-97 and 1998 respectively. Six ... February 1996 and 1997 and were tracked for up to five months before transmissions stopped. The seventh ... tracked for 32 days. All fledglings travelled northward initially, then westward along the edge of the ... fast-ice or in the pack-ice. Fledglings had travelled between 536 and 1931 km to the west of their ...
Meeting Document : WG-EMM-02/47 : Auteur(s): J. Clarke and K. Kerry (Australia), C. Fowler (USA), R. Lawless, S. Eberhard and R. Murphy (Australia)
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An ecosystem-based approach to management: using individual behaviour to predict the indirect effects of Antarctic krill fisheries on penguin foraging
many species within the Antarctic. Despite extensive knowledge of the ecosystem that they occupy, there ... is still incomplete understanding of the links between species and the effect of environmental ... understand the interactions between penguins and krill to determine the indirect effect of krill fisheries on ... is predicted to reduce penguin food intake. Given the documented links between krill and penguins ...
Meeting Document : WG-EMM-03/34 : Auteur(s): S.H. Alonzo, P.V. Switzer and M. Mangel (USA)
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The fishery for Patagonotothen brevicauda guntheri in CCAMLR Subarea 48.3
Paper Title: The fishery for Patagonotothen brevicauda guntheri in CCAMLR Subarea 48.3 Abstract ... / Description: Fine-scale data supplied to CCAMLR for 1987/88 showed that the catches of P atagonotothen ... brevicauda guntheri were five times greater in the South Georgia area than at Shag Rocks. Previous survey ... data and reports to the CCAMLR Working Group on Fish Stock Assessment indicated that this species was ... no reports of P.b. guntheri being taken as by-catch in the krill fishery. 3. DISTRIBUTION OF ... WG-FSA-90/12 THE FISHERY FOR PATAGONOTOTHEN BREVICAUDA ... CCAMLR for 1987/88 showed that the catches of Patagonotothen brevicauda guntheri were five times greater ... in the South Georgia area than at Shag Rocks. Previous survey data and reports to the CCAMLR Working ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 275–283 : Auteur(s): Everson, I. and C. Mitchell
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Investigation of bias in the mark–recapture estimate of toothfish population size at South Georgia
Paper Title: Investigation of bias in the mark–recapture estimate of toothfish population size at ... South Georgia Abstract / Description: This paper investigates the influence of mixing of fish, and the ... uneven distribution of tag placements and recapture effort, on bias in the Petersen estimator of ... population size. It does so by constructing a spatial model of the South Georgia toothfish fishery ... , regardless of where they were. No other mortality factors were included in the model, not even the antici ... InvestIgatIon of bIas In the mark–recapture estImate of toothfIsh populatIon sIze at south georgIa D.J. Agnew ... Abstract This paper investigates the influence of mixing of fish, and the uneven distribution of tag ... placements and recapture effort, on bias in the Petersen estimator of population size. It does so by ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 47–63 : Auteur(s): Agnew, D.J., G.P. Kirkwood, J. Pearce and J. Clark
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An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging program in Subareas 88.1 and 88.2 for 2006/07
moved significant distances from the slope fisheries in SSRUs 88.1H, 88.1I, and 88.1K to Terra Nova Bay ... Abstract: Descriptive analyses of the toothfish tagging programme carried out in Subareas 88.1 ... and 88.2 since 2001 are updated. The paper provides a preliminary update of the tag-release and tag ... -recapture data that were presented at the October 2006 meeting of WG-FSA by including data from New Zealand ...
Meeting Document : WG-SAM-07/5 : Auteur(s): A. Dunn, S.M. Hanchet and S.L. Ballara (New Zealand)
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Estimating optimal observer coverage in the Antarctic krill fishery
Paper Title: Estimating optimal observer coverage in the Antarctic krill fishery Abstract ... / Description: Data collected as part of the CCAMLR Scheme of International Scientific Observation from ... components analysis (VCA) to determine the relationship between observer coverage and our ability to reliably ... estimate parameters of interest, in this case the mean (or median) krill length and the rate of larval fish ... Estimating optimal obsErvEr covEragE in thE antarctic krill fishEry D.J. Agnew1, P. Grove2, T. Peatman1 ... Abstract Data collected as part of the CCAMLR Scheme of International Scientific Observation from ... components analysis (VCA) to determine the relationship between observer coverage and our ability to ... reliably estimate parameters of interest, in this case the mean (or median) krill length and the rate of ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 139–154 : Auteur(s): Agnew, D.J., P. Grove, T. Peatman, R. Burn and C.T.T. Edwards
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La CCAMLR et ses liens avec le Traité sur l'Antarctique
, I 1977 Southern Ocean fisheries survey programme. The living resources of the Southern Ocean FAO, Rome ... (Italy) 160 p. Eddie, G.O 1977 Southern Ocean fisheries survey programme. The harvesting of krill. FAO ... , Rome (Italy) , 1977, 82 p. Grantham, G.J 1977 Southern Ocean fisheries survey programme. The ... utilization of krill FAO, Rome (Italy) 67p.. El-Sayed S. Z. (ed) 1994 Southern Ocean ecology : the BIOMASS ... Description / Abstract: This document provides background information concerning the CAMLR ... Convention and outlines the linkages between the CAMLR Convention and the Antarctic Treaty and key ... obligations for the information of prospective and existing parties to the Convention. ...
Document : Site Section: The Organisation
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CPUEs, body length and greenness of Antarctic krill during 1987/88 season in the fishing ground north of Livingston Island
Paper Title: CPUEs, body length and greenness of Antarctic krill during 1987/88 season in the ... there was a marked change in two kinds of CPUEs, body length and greenness of krill during the fishing ... season, these parameters were examined for each 10-day period of the Japanese krill fishery in the ... northern waters of Livingston Island in the 1987/88 season. It appears that Japanese trawlers have not ... March, the major fishing ground moved to the waters west of Elephant Island. There was no significant ... area moved as a whole and assume no advection from adjacent areas, approximately 7% of the biomass was ... ANTARCTIC KRILL DURING 1987/88 SEASON IN THE FISHING GROUND NORTH OF LlVINGSTON ISLAND Y. Endo and T ... , body length and greenness of krill during the fishing season, these parameters were examined for each ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 323–338 : Auteur(s): Endo, Y. and T. Ichii