Résultats de la recherche
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Depth and temperature preferences of Antarctica toothfish (Dissostichus mawsoni) from a pilot popup satellite archival tag study in the Mawson Sea
yearlong, 15-second data records from a single, recaptured individual. These fish occupied an overall ... depth range of 326 to 1824 m and a temperature range of-1.95 to 0.7°C. Through available depth and ... spawning behavior and suggested Mawson Sea is a potential spawning ground. Future investigation is ... reproductive ecology of Antarctic toothfish. To this end, a tagging configuration is proposed to target logging ...
Meeting Document : WG-FSA-18/22 : Auteur(s): C.H. Lam, S.-G. Choi, E. Kim, S. Chung, J. Lee and D.H. An
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Annual migrations of pelagic fish stocks into a krill hotspot
Abstract: We report here on the existence of seasonal fish migrations into a krill hotspot ... from krill on a single frequency. Trawl catches in the area during 2019 gave high densities of mackerel ... icefish, so this species is a likely candidate, if these targets are swimbladderless notothenoids, their ... . Author(s): T. Klevjer Title: Annual migrations of pelagic fish stocks into a krill hotspot Approval ...
Meeting Document : WG-EMM-2019/33 : Auteur(s): T. Klevjer
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Progress report on the scientific data compilation and analyses in support of the planning of a potential Marine Protected Area (MPA) east of the zero meridian in the Weddell Sea (Antarctica)
resources and marine biodiversity. During the Commission meeting of 2018, a proposal was made by Norway on ... 6.39) as a useful way forward to achieve consensus and offered to work collaboratively with Norway, the ... . Griffith, T. Hatterman, A. Høgestøl, Y. Kasajima, A. Lowther, S. Moreau, B. Njaastad, P. Koubbi, C. von ... and analyses in support of the planning of a potential Marine Protected Area (MPA) east of the zero ...
Meeting Document : SC-CAMLR-38/BG/14 : Auteur(s): G. Griffith, T. Hatterman, A. Høgestøl, Y. Kasajima, A. Lowther, S. Moreau, B. Njaastad, P. Koubbi, C. von Quillfeldt, T. Brey, K. Teschke and O.A. Bergstad
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A balanced trophic model of the ecosystem of the Ross Sea, Antarctica, for investigating effects of the Antarctic toothfish fishery
Abstract: We report on the development of a mass balanced carbon-budget trophic model of the Ross ... Sea with which to investigate effects of the fishery for Antarctic toothfish (Dissostichus mawsoni). A ... parameters. The Ross Sea is a low primary production system, with high seasonal, spatial and interannual ... . A number of demersal fish species (including Macrourus whitsoni, Bathyraja eatonii, Chionobathyscus ...
Meeting Document : WG-EMM-07/18 : Auteur(s): M.H. Pinkerton, S.M. Hanchet and J. Bradford-Grieve (New Zealand)
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OPTIMISING THE DESIGN OF LARGE-SCALE GROUND SURVEYS OF ADÉLIE PENGUIN ABUNDANCE USING VIRTUAL SIMULATION IN A GEOGRAPHIC INFORMATION SYSTEM
virtual simulation in a GIS environment to explore how the recommended area/density approach can be ... approach is illustrated using a case study of a large-scale ground survey of Adélie penguins. The findings ... LARGE-SCALE GROUND SURVEYS OF ADÉLIE PENGUIN ABUNDANCE USING VIRTUAL SIMULATION IN A GEOGRAPHIC ...
Meeting Document : WG-EMM-11/42 : Auteur(s): C. Southwell, R. Driessen and S. Candy (Australia)
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Preliminary assessment of mackerel icefish (Champsocephalus gunnari) in the vicinity of Heard Island and McDonald Islands (Division 58.5.2), based on a survey in July 2007, using the generalised yield model
Abstract: A survey of mackerel icefish, Champsocephalus gunnari, was undertaken in Division ... -term annual yield in the 2007/2008 CCAMLR season. This paper provides a preliminary assessment of yield ... mackerel icefish, and an increase on the recommended catch over the projection. Based on a similar cohort ... (Champsocephalus gunnari) in the vicinity of Heard Island and McDonald Islands (Division 58.5.2), based on a survey ...
Meeting Document : WG-FSA-07/47 : Auteur(s): D.C. Welsford (Australia)
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Beached birds: a guide used by north pacific groundfish observers to identify seabirds incidentally caught in fisheries
vessels in the Bering Sea and Gulf of Alaska. This new guide replaces a dichotomous key on looseleaf paper ... , typically wet and bedraggled birds---appearances much different than living specimens. A description of ... collection at the NMFS North Pacific Groundfish Observer Program. A copy of Beached Birds is available in the ... CCAMLR Library. Author(s): T. Hass and S. Davis (USA) Title: Beached birds: a guide used by north ...
Meeting Document : WG-FSA-03/24 : Auteur(s): T. Hass and S. Davis (USA)
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The direct impact of fishing and fishery-related activities on marine life in the CCAMLR Convention Area with particular emphasis on longline fishing and its impact on albatrosses and petrels – a review
Iles Kerguelen. The fishery extended further south for a few years in the second half of the 1970' ... Ocean within one season. A number of direct effects from fishing activities can be seen on marine life ... local and killed probably only a few animals per year. Author(s): Delegation of Germany Title: The ... particular emphasis on longline fishing and its impact on albatrosses and petrels – a review Approval ...
Meeting Document : SC-CAMLR-XIX/BG/11 : Auteur(s): Delegation of Germany
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Seabird mortality on longlines in Australian waters: a case study of progress and policy
impact of longline fishing on seabirds was first documented, is presented as a case study. Most of the ... seabird bycatch and/or adoption of mitigation methods has been slow. This is a cause for concern given ... , large amounts of data are necessary to gain clear insights into the suite of species impacted by a ... employed. In many cases, it is unlikely that such data will be available for a fishery. To overcome some of ...
Meeting Document : WG-FSA-98/29 : Auteur(s): R. Gales, N. Brothers, T. Reid, D. Pemberton and G.B. Baker (Australia)
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A model at the level of the foraging trip for the indirect effects of krill (Euphausia superba) fisheries on krill predators
population level effects. Here, we present for. the first time a model at the level of the foraging trip for ... the effects of a fishery on krill predators, using the Adelie penguin (Pygoscelis adeliae) as a model ... relative comparisons of penguin reproductive success and adult survival in the absence or presence of a ... and offspring needs and a standard life history model to set the upper limits for expected offspring ...
Meeting Document : WG-EMM-96/20 : Auteur(s): Switzer, P.V., Mangel, M.