Résultats de la recherche
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Progress towards an assessment of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 882C–H for the years 2002–03 to 2015–16 using a two-area model
Antarctic toothfish (Dissostichus mawsoni) in the Amundsen Sea region, defined here as SSRUs 88.2C–H. The ... region is split into two main areas: the North (SSRU 88.2H) comprising large mature fish, and the South ... models were first developed for the region in 2014 and refined in 2015. Results showed the need to ... collect mark-recapture data in the South to help inform the estimation of biomass in the South. We present ...
Meeting Document : WG-FSA-16/44 : Auteur(s): S. Mormede, K. Large and S. Hanchet
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A possible framework in which to consider plausible models of the Antarctic marine ecosystem for evaluating krill management procedures
Abstract: CCAMLR requires an assessment method for recommending a subdivision of the krill catch ... limit in Area 48 that will be highly likely to achieve the objectives of the convention despite the ... uncertainties in knowledge. This will be part of the management procedure governing the krill fishery. The ... agreed workplan for developing a management procedure includes the evaluation of candidate management ...
Meeting Document : WG-EMM-04/24 : Auteur(s): A. Constable (Australia)
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Preliminary assessment of Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a survey in April–May 2003
, for Heard Island Plateau (Division 58.5.2) was done, using the standard CCAMLR methods, based on the ... result of a randomly stratified trawl survey completed between 16 April and 10 May 2003. The 2003 ... 1999. A minor revision to the recruitment series resulted in a relatively small reduction in the ... preliminary estimate of sustainable long-term yield assessed using the standard method. The preliminary ...
Meeting Document : WG-FSA-03/33 : Auteur(s): A.J. Constable, C.R. Davies, R. Williams and T. Lamb (Australia)
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Relationships between distribution of two euphausiid species and oceanographic characteristics in the Ross Sea (January–February 2000)
the Ross Sea area. Activities included acoustic, fishery and physical measurements. More than 2370 ... nautical miles were acoustically sampled to determine the euphausiid biomass; during the echosurvey, every ... between the two species. Euphausia superba and Euphausia crystallorophias swarms were recognized, and ... average length estimated, by means of the three-frequency method, based on the fluid sphere model. Net ...
Meeting Document : WG-EMM-02/38 : Auteur(s): A. Russo, M. Azzali, E. Biffi, G. Lanciani and E. Paschine (Italy)
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Bird Island, South Georgia during the 1998 winter and 1998/99 pup-rearing season
Abstract: Results of the survey of entanglements of Antarctic fur seals at Bird Island, South ... Georgia for the ninth consecutive winter (1998) and eleventh consecutive summer (1998/99) are reported ... here. The number of seals observed entangled in the winter (13) represented an 86 % increase on the ... 1997 winter total and an 87 % decrease on the highest previous total (1992). The proportion of animals ...
Meeting Document : SC-CAMLR-XVIII/BG/05 : Auteur(s): Delegation of the United Kingdom
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Horizontal and vertical distribution and demography of euphausiids in the Ross Sea and its adjacent waters in 2004/2005
Abstract: The horizontal and vertical distribution and population structure of euphausiids in the ... Ross Sea and its adjacent waters were investigated during the summers of 2004/2005 using stratified ... towed samples. Nine species of euphausiids occurred in the survey area. Among them, Euphausia triacantha ... was dominant in biomass north of the southern boundary of the Antarctic circumpolar current (SB ...
Meeting Document : WG-EMM-08/P10 : Auteur(s): K. Taki, T. Yabuki, Y. Noiri, T. Hayashi and M. Naganobu
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ESTIMATING THE SWEPT AREA OF DEMERSAL LONGLINES BASED ON IN-SITU VIDEO FOOTAGE
video camera recorded the interactions between the main line and the benthos during setting and hauling ... . Footage revealed that after setting the line moved very little, despite cross currents. During hauling ... , the section of line visible to the camera swept sideways, interacting with sessile benthic organisms ... before leaving the seafloor. Based on an estimate of the rate of sideways movement, the total time ...
Meeting Document : WG-FSA-08/58 : Auteur(s): D. Welsford and R. Kilpatrick (Australia)
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Precautionary measures for a new fishery on Martialia hyadesi (Cephalopoda, Ommastrephidae) in the Scotia Sea: an ecological approach
Abstract: In anticipation of the development of a new fishery for the oceanic squid Martialia ... hyadesi in the Scotia Sea a revision is presented of annual consumption of the species by higher predators ... and a brief review is provided of information about the life cycle and distribution obtained from ... research fishing and commercial catches. The species is consumed by seabirds, seals and whales and the most ...
Meeting Document : WG-FSA-96/20 : Auteur(s): Rodhouse, P.G.
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Physical oceanographic setting of the Siedlecki January 1987, South Shetland Island data set
Abstract: In the vicinity of the northern tip of Antarctic Peninsula, the Bransfield Straits and ... South Shetland Islands, cold polar waters from the Weddell Sea meet warmer circumpolar water from the ... Pacific Ocean. A series of fronts form which collectively are referred to as the Weddell-Scotia Confluence ... . Within the Confluence region the Weddell Gyre water is separated from the Pacific or Scotia Sea water by ...
Meeting Document : SC-CAMLR-VII/BG/19 : Auteur(s): United States of America
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Recommendations on estimating krill escape mortality during fishing operations: the problems and approaches
Abstract: The task to estimate the escape mortality of krill during the fishing operation ... assigned by Scientific Committee requires assessment of the total krill passed through the rope and netting ... parts of trawl and krill amount appeared unviable in the process of escapement. The recommendations ... presented are the first attempt to develop the method of instrumental assessment of the «escape mortality ...
Meeting Document : WG-SAM-10/06 : Auteur(s): V.K. Korotkov and S.M. Kasatkina (Russia)