Resultados de la búsqueda
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Factors affecting the growth rate and mass at weaning of Antarctic fur seal pups at Bird Island, South Georgia
Abstract: We studied the influence of sex of pup, maternal age, birth date of pup, number of ... foraging trips, and the mean duration of both foraging trips at sea and nursing visits ashore on the growth ... and mass at weaning of pups of Antarctic fur seals (Arctocephalus gazella) during the austral summers ... the pups influenced the nature and magnitude of sex differences in estimated growth rates. Growth ...
Meeting Document : WG-CEMP-93/09 : Autor(es): N.J. Lunn, I.L. Boyd, T. Barton and J.P. Croxall (United Kingdom)
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Evaluating the impact of multi-year research catch limits on overfished toothfish populations
Abstract: In stocks that have been depleted by overfishing, the benefits of additional fisheries ... removals for research purposes need to be evaluated against the risks that such catches may contribute to ... delaying the recovery of such stocks. Through simulating a Dissostichus eleginoides stock that has been ... decades to recover even in the absence of fishing, and apparently low levels of research catches can ...
Meeting Document : WG-FSA-10/42 Rev. 1 : Autor(es): D.C. Welsford (Australia)
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Chronology of previously submitted scientific documents, and updated maps and analyses supporting MPA planning in the Ross Sea region
Abstract: A proposal for a Marine Protected Area in the Ross Sea region has been submitted to ... CCAMLR and iteratively updated since 2012 consistent with Scientific Committee advice. The purpose of ... this paper is to: 1) identify previously submitted scientific documents supporting MPA planning in the ... scientific papers to reflect the boundaries of the current MPA proposal and with updated fishery data, to ...
Meeting Document : SC-CAMLR-XXXIII/BG/23 Rev. 1 : Autor(es): Delegations of New Zealand and the USA
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Results of the tagging experiment for (D. eleginoides) in Subarea 48.4, 2007 update
Abstract: 1. During the 2006/07 fishing season one UK and one New Zealand vessel fished in ... distributions of abundance around the fishing area. There were two tag recaptures in 2007, both of D ... . eleginoides. These were recaptured 84km and 14km from their points of release. 3. The UK proposes to continue ... the mark-recapture experiment in Subarea 48.4 in 2007/08. Initial estimates of population size will be ...
Meeting Document : WG-FSA-07/32 : Autor(es): J. Roberts and D.J. Agnew (United Kingdom)
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Krill distribution pattern due to water structure and dynamics near the South Sandwich Islands in January–February 2000 (Krill Synoptic Survey 2000)
48.4 near South Sandwich Islands. The main water masses were revealed and their boundaries determined ... : waters of Antarctic Circumpolar Current, Weddell Sea and Secondary Frontal zone of Weddell Gyre. The ... schematic maps of geostrophic waters circulation are made. The joint analysis of environment parameters and ... length frequency, maturity stages and waters inhabited. Distribution of the 1st krill group (juveniles 25 ...
Meeting Document : WG-EMM-00/33 : Autor(es): V. Sushin, P. Chernyshkov, V. Shnar, F. Litvinov and K. Shulgovskiy (Russia)
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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 ... determined actually only by MSBS (or MVBSS) acoustic parameter distribution and independent on the midwater ... : assessment of MSBS (MVBS) acoustic parameter distribution and krill length (weight) distribution in the study ...
Meeting Document : WG-EMM-98/21 : Autor(es): 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 ... areas designated within the Convention Area. As at August 2011, there is one designated MPA managed by ... CCAMLR. In addition, the ATCM has designated 6 exclusively marine Antarctic Specially Protected Areas ...
Meeting Document : WS-MPA-11/19 : Autor(es): S.M. Grant and P.N. Trathan (UK)
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Antarctic toothfish and macrourids are likely important prey of Arnoux’s beaked whales in the Ross Sea region
Abstract: On the basis of circumstantial evidence, an elevated likelihood exists that Antarctic ... toothfish and the most-caught by-catch species, macrourids, in the Area 88 fishery are important components ... in the diet of the Arnoux’s beaked whale (Berardius arnouxii), which is a component of the Ross Sea ... macrourids are likely important prey of Arnoux’s beaked whales in the Ross Sea region Approval: Approved ...
Meeting Document : WG-EMM-09/15 : Autor(es): R.L. Brownell Jr and D.G. Ainley (USA)
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PREDICTING THE VULNERABILITY OF BENTHIC, HABITAT-FORMING ORGANISMS TO DISTURBANCE USING LIFE-HISTORY CHARACTERISTICS
Abstract: Assessing the impacts of fishing on Vulnerable Marine Ecosystems (VMEs) in the Southern ... Ocean is hampered by the paucity of information on the resistance and resilience of these ecosystems to ... physical and chemical variables. Where records for the Southern Ocean exist, they fall within general ... data are presented for the phylum Cnidaria, an important group of habitat-forming organisms that are ...
Meeting Document : WG-EMM-09/35 : Autor(es): K. Martin-Smith (Australia)
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BOOK REVIEW: WHALES OF THE SOUTHERN HEMISPHERE: BIOLOGY, WHALING, AND PERSPECTIVES OF POPULATION RECOVERY by Y. A. Mikhalev
Abstract: Examined the distribution and migration patterns of whales in the Southern Hemisphere ... . The presence of a new species of killer whale in the Antarctic, Orcinus nana, is shown. The impacts of ... extermination of whales in the Antarctic ecosystem are examined. Regions are defined which could be used as ... THE SOUTHERN HEMISPHERE: BIOLOGY, WHALING, AND PERSPECTIVES OF POPULATION RECOVERY by Y. A. Mikhalev ...
Meeting Document : WG-FSA-09/11 : Autor(es): Delegation of Ukraine