Résultats de la recherche
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Adélie penguins’ response to unmanned aerial vehicle at Cape Hallett in the Ross Sea region, Antarctica
Adélie penguins in this area, because Cape Hallett was designated as a new site for the Ecosystem ... Antarctica, but there are concerns about the disturbance it causes to penguins in the process. Since 2016 ... count Adélie penguins’ nests at Cape Hallett, but the impact of using this method on breeding penguins ... has not been investigated. An annual survey should be conducted to determine the population size of ...
Meeting Document : WG-EMM-2019/36 Rev. 1 : Auteur(s): J.-H. Kim, Y.-S. Kim, J.-W. Jung, W.Y. Lee, H.-C. Kim, J.H. Kim, H. Chung and H.C. Shin
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Considerations about managing the krill fishery at small spatial and temporal scales
managing the krill fishery at small temporal and spatial scales. We highlight that the devil is in the ... coastal areas. Closed coastal areas potentially protect near-shore krill-dependent predators from the ... closed coastal buffers will alter the potential levels of catch displacement, and therefore highlights ... the need for coupled research to ensure fishery displacement does not become too concentrated in other ...
Meeting Document : WG-EMM-2019/22 : Auteur(s): P.N. Trathan, V. Warwick-Evans and E. Young
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A tale of two islands: contrasting fortunes for sub-Antarctic skuas at the Prince Edward Islands
, continuing an apparent decrease in this species at Marion Island since the 1980s. There is no evidence that ... -Antarctic islands, and can be used to monitor the health of burrowing petrel populations. A survey of skuas ... at the Prince Edward Islands was conducted during December 2008, repeating a previous survey in ... (290 km 2) had a feral population of cats from the 1950s to 1980s, and still supports a large ...
Meeting Document : WG-EMM-10/P03 : Auteur(s): P.G. Ryan, P.A. Whittington and R.J.M. Crawford
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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
mawsoni) released in the Mawson Sea were analyzed. Toothfish were at liberty for 36-366 days, and yielding ... appeared to have remained in the Mawson Sea area for the majority of time at liberty. The recaptured ... individual exhibited distinctive vertical ascents only in September, during the presumed spawning season, and ... was estimated to be near shore in the Mawson Sea. These ascents could represent characteristic ...
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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Final report of the CEMP Special Fund project to develop an image processing software tool (SPPYCAMS) for analysis of camera network monitoring data
Abstract: We provide a final report on the CEMP Special Fund project ‘Developing an image ... processing software tool for analysis of camera network monitoring data’. The project was initiated with ... support from the CEMP Fund in 2015/16. An earlier version of the software developed prior to receiving ... data forms for data obtained from remote camera networks. We are pleased to report that the software ...
Meeting Document : WG-EMM-2019/44 : Auteur(s): C. Southwell, A. Sikka, J. Cusick, H. Achurch, A. Lashko, K. Newbery, M. Salton, J. Kool, J. Hinke, G. Watters, M. Santos, G. Milinevsky, M. Korczak-Abshire, N. Ratcliffe, P. Trathan, A. Barbosa and L. Emmerson
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Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 1994 winter and 1994/95 pup-rearing season
showing severe injuries was 33%, down on the 1993 winter. There were no animals entangled in packaging ... the fifth consecutive winter and seventh consecutive summer at Bird Island, South Georgia. The three ... animals entangled during the 1994 winter is the lowest number recorded since the winter surveys began ... , being 92% lower than in 1993 and 97% lower than the record 1992 winter. Nearly all animals involved were ...
Meeting Document : SC-CAMLR-XIV/BG/08 : Auteur(s): Delegation of the United Kingdom
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Acoustic and catch data collected by the fleet – relevance for feedback management
backscattering is very variable over time during the season as measured onboard a fishing vessel, but there is no ... Abstract: The Norwegian fishing vessels involved in krill fisheries are also used to carry out ... abundance surveys around the South Orkney Islands. The involved companies have accepted running acoustic ... logging also during periods of commercial fishing. In this paper we give an overview of the properties of ...
Meeting Document : WG-EMM-15/13 : Auteur(s): O.R. Godø, T. Klevjer and G. Skaret (Norway)
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Observation on the interactions between marine mammals and mid-water krill trawl
Abstract: An observation on the interaction between marine mammal and krill midwater trawl was ... carried out onboard the Chinese krill fishing vessel Fu Rong Hai during the 2018/19 fishing season. The ... conducted visually with the aid of a SLR Camera and a Marine Binocular. Sea surface observation in Subarea ... 48.3 showed that the number of fur seal (Arctocephalus gazelle) around the fishing vessel increased ...
Meeting Document : WG-FSA-2019/60 : Auteur(s): Y. Ying, G. Fan, X. Zhao, J. Zhang, X. Wang and J. Zhu
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in SSRU 882E including data from the 2005/06 season
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... model for Antarctic toothfish (Dissostichus mawsoni) in the SSRU 88.2E, using revised catch, CPUE, catch ... -at-age and tag-recapture data from New Zealand and all vessels. The updated reference case resulted ... different assumption of the level of natural mortality (M=0.13 y-1), and the revised length-weight and ...
Meeting Document : WG-FSA-06/48 : Auteur(s): A. Dunn and S.M. Hanchet (New Zealand)
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ADDING CATCH AT AGE AND SURVEY DATA TO THE 48.3 TOOTHFISH CASAL ASSESSMENT
sex-aggregated model, and no significant improvement to the tagging data fits. Estimates of cohort ... Abstract: The catch-at-age based CASAL model for toothfish in Subarea 48.3, which was presented ... in 2007, is developed and extended here to include survey data. Additional adjustments to the model ... suggested by WG-FSA-2007 are implemented. Fits to the survey length frequencies are good for recent surveys ...
Meeting Document : WG-SAM-09/13 : Auteur(s): D.J. Agnew and M. Belchier (United Kingdom)