Search results
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Intra-archipelago moult dispersion of southern elephant seals at the Prince Edward Islands, southern Indian Ocean
), 38 of which could be individually identified by resighting their tag numbers. The majority of the MI ... . The attendance rate of the known individuals at their natal island during the annual moult was only 40 ... PEI, and 80 ± 4% for the simulation. Seasonal and annual absences of seals from MI violate the ... ‘homogeneity of capture’ assumption of mark–recapture models. When multiple sightings during any year are ...
Meeting Document : WG-EMM-10/P16 : Author(s): W.C. Oosthuizen, M.N. Bester, P.J.N. de Bruyn and G.J.G. Hofmeyr
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Depth distribution and spawning pattern of Dissostichus eleginoides over the winter period in Subarea 48.3
Abstract: Trends in mean length and maturity stage of toothfish were examined using observer data ... statistically significant pattern of changing mean length at depth with month was found in both 1997 and 1998 ... seasons, suggesting movement of animals both up and down slope at particular times of year. Months with a ... . Examination of maturity data suggests that in addition to a major spawning event in late July/August, there ...
Meeting Document : WG-FSA-98/58 : Author(s): D.J. Agnew, K. Kerkieta, L. Heaps, C. Jones, J. Pearce and A. Watson (United Kingdom)
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ANALYSIS OF VME DATA COLLECTED BY UK VESSELS FISHING IN THE ROSS SEA DURING THE 2008/09 CCAMLR SEASON
Abstract: Analysis of VME data collected in 2008/09 by UK vessels and national and international ... observers onboard was carried out to explore evidence of VMEs in the Ross Sea. 2008/09 data corroborated ... areas in 88.1I, E and F identified in our previous analysis of data collected by observers on UK vessels ... meaning of our historical CPUE data. Although a positive (exponential) association was apparent between ...
Meeting Document : WS-VME-09/05 : Author(s): Peatman, T., Mitchell, R.E., Pearce, J., Agnew, D.J.
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Global relationships amongst black-browed albatrosses: analysis of population structure using mtDNA and microsatellites
Abstract: The population structure of black-browed (Thalassarche melanophris and T. impavida) and ... five island groups in the Southern Ocean. High levels of sequence divergence were found in both taxa ... (T. impavida). T. melanophris from Campbell Island contain birds from each of the three groups ... , indicating high levels of mixture and hybridization. In contrast, grey-headed albatrosses form one globally ...
Meeting Document : WG-FSA-01/19 : Author(s): T.M. Burg and J.P. Croxall (United Kingdom)
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A preliminary survey on breeding population of Adélie penguins at Cape Hallett in the Ross Sea region, Antarctica
Abstract: To develop a long-term ecological research program at a breeding site of Adélie ... out a preliminary survey on the population size and foraging trips of penguins at Cape Hallett. All ... aerial images using an unmanned aerial vehicle (UAV). The Cape Hallett colony was composed of ... approximately 700 sub-colonies occupied by 53,450 pairs of Adélie penguins in 2016. The foraging area of the ...
Meeting Document : WG-EMM-17/06 : Author(s): J.-H. Kim, H. Chung, W.Y. Lee, J.-W. Jung, M.C. Park, H.C. Shin and J.H. Kim
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Proposal to modify Conservation Measure 10-05 to establish transparency related to the total catch, transhipment and landing of toothfish
-CDS) and Conservation Measure 10-05 to better document the harvest and subsequent movements of ... vessel’s catch, as well as the amount and description of catch that is transshipped, and to capture ... multiple landings from a single harvest event. These improvements will enable the use of the e-CDS to track ... all Dissostichus spp. moving in trade back to the original harvest event and strengthen the ability of ...
Meeting Document : CCAMLR-XXXVI/24 : Author(s): Delegation of the USA
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Model-based, ecosystem risk assessments of MPA scenarios in Planning Domain 1
-Fishery Model to assess the risks of distributing catch limits for krill among small-scale management ... parameterizations of this model and conduct comparable risk assessments at smaller spatial scales. We use the method ... to assess some of the risks associated with two marine protected area (MPA) scenarios in Planning ... Argentina and Chile can, if desired, be improved by changing the sizes of the coastal buffers that define ...
Meeting Document : SC-CAMLR-XXXVI/BG/27 : Author(s): Delegation of the USA
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Some comments on the procedure of krill target strength assessment in echosurveys
Abstract: The impact of midwater trawl selectivity and catchability upon TS and TS 1 kg estimates ... . Application of the proposed method of mean weighted TS 1 kg estimation provides the biomass estimation ... : assessment of MSBS (MVBS) acoustic parameter distribution and krill length (weight) distribution in the study ... area. The latter requires to settle a complex of problems which allow to consider the trawl as a ...
Meeting Document : WG-EMM-98/21 : Author(s): S.M. Kasatkina (Russia)
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Marine Protected Areas in the Southern Ocean: update on current status of designated areas
Abstract: The development of a representative system of Antarctic marine protected areas (MPAs ... ) will require up to date information on the location, conservation aims and current status of protected ... (ASMAs) with both marine and terrestrial components (all located south of 60°S). A further 3 MPAs have so ... national jurisdictions. The geographic distribution and range of values being protected within these areas ...
Meeting Document : WS-MPA-11/19 : Author(s): S.M. Grant and P.N. Trathan (UK)
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Latitudinal variation of demersal fish assemblages in the western Ross Sea
°S. The distribution and abundance of 65 species collected in these surveys were examined to ... influence this. Species accumulation with sample frequency did not reach an asymptote, but the rate of new ... species was low suggesting data were adequate for describing the main components of the communities. Three ... broad assemblages were identified, in the southern Ross Sea (south of 74°S), central–northern Ross Sea ...
Meeting Document : WG-FSA-10/P03 : Author(s): M.R. Clark, M.R. Dunn, P.J. McMillan, M.H. Pinkerton, A. Stewart and S.M. Hanchet