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Otolith elemental signatures reveal habitat shift of Electrona carlsbergi
Abstract: Electron subantarctic (Electrona carlsbergi) is one of important pelagic myctophidae ... which circumpolar distributed between the warm waters of the subtropical confluence zone and the ... Southern Ocean. The distribution, life history and migration pattern of this species were examined using ... the biological data in 1990s, however, the habitat shift of this species was still unclear. The ...
Meeting Document : WG-FSA-17/65 : Автор(ы): L. Wei and G.P. Zhu
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Progress towards a representative network of Southern Ocean protected areas
adoption of marine protected areas (MPAs) in national and international waters. While establishing MPAs in ... international waters has proven to be challenging in most of the world, national governments and the Commission ... for the Conservation of Marine Living Resources (CCAMLR) have succeeded in adopting multiple MPAs in ... the Southern Ocean. But are these MPAs representative of Southern Ocean biodiversity and ecosystems ...
Meeting Document : WS-SM-18/12 Rev. 1 : Автор(ы): C. Brooks, S. Chown, L. Douglass and B. Raymond
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Influence of krill availability on humpback whale breeding success
Abstract: The abundance of the Antarctic krill (Euphausia superba) has been declining in the ... western Antarctic Peninsula (WAP), probably as a consequence of the effects of the considerable increase ... survival) of the krill consumers may be compromised. In the present study, we investigated the reproductive ... success of humpback whales (Megaptera novaeangliae) from Breeding Stock G in relation to krill density ...
Meeting Document : WG-EMM-18/P15 : Автор(ы): E. Seyboth, F. Félix, M.-A. Lea, L. Dalla Rosa, G. Watters, K. Reid and E. Secchi
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Exploratory analysis of acoustic data from the Ross Sea
Abstract: This report presents results from a pilot study to determine the feasibility of ... analyses focused on the subset of acoustic data collected when setting longlines so acoustic recordings ... , corresponding to 2–4 nmi. Data quality was generally good. Of the 84 line recordings, 68 were considered ... January 2003, and the occurrence of a double bottom echo caused by too high a ping rate from 23–30 January ...
Meeting Document : WG-FSA-SAM 03/9 : Автор(ы): R.L. O’Driscoll and G.J. Macaulay (New Zealand)
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Comparison between the CCAMLR-2000 and KY 1988 surveys on environmental variability of krill in the Scotia Sea, Antarctica
Abstract: We assessed the environmental variability of Antarctic krill (Euphausia superba ... in December 1999. The Antarctic Surface Water mass, consisting of Winter Water and Summer Surface ... Antarctic Surface Water in 2000 reduced southward. Geographical distribution of krill, which approximates ... the area of the Antarctic Surface Water, in 1987/88 extended northward with high density. In contrast ...
Meeting Document : WG-EMM-02/43 : Автор(ы): M. Naganobu (Japan), M. Brandon (United Kingdom), K. Ito, K. Segawa (Japan) and V. Siegel (Germany)
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RAPID WARMING OF THE OCEAN AROUND SOUTH GEORGIA,SOUTHERN OCEAN, DURING THE 20TH CENTURY: FORCINGS, CHARACTERISTICS AND IMPLICATIONS FOR LOWER TROPHIC LEVELS
Abstract: The Southern Ocean is known to have warmed considerably during the second half of the ... 20th century but there are few locations with data before the 1950s. In addition, assessments of change ... in this region are hampered by the strong seasonal bias in sampling, with the vast majority of data ... collected during the austral summer. However, oceanographic measurements near South Georgia span most of the ...
Meeting Document : WG-EMM-08/P03 : Автор(ы): M.J. Whitehouse, M.P. Meredith, P. Rothery, A. Atkinson, P. Ward and R.E. Korb
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A von Bertalanffy growth model for Division 58.5.2 fitted to length-at-age data and a comparison of predicted with observed growth from mark–recapture data
variable probability (VP) sampling of fish that were aged. Sub-sampling of random length frequency (LF ... ) data used to obtain the samples of fish for ageing used length-bin sampling involving a fixed sample ... size per bin. Estimation of the VB parameters used a definition of the maximum likelihood which took ... into account VP sampling due to length-dependent selectivity of trawl fishing and also accounted for ...
Meeting Document : WG-FSA-SAM-06/07 : Автор(ы): S.G. Candy, A.J. Constable, T. Lamb and R. Williams (Australia)
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A condensed history and document of the method used by CCAMLR to estimate krill biomass (B0) in 2010
Abstract: Antarctic krill (Euphausia superba) are considered to be one of the key species in the ... Antarctic marine food web, being prey to a wide variety of dependent species as well as being commercially ... harvested. The commercial exploitation of krill is managed under the direction of CCAMLR (Commission for the ... Conservation of Antarctic Marine Living Resources), utilising results derived from the CCAMLR generalised yield ...
Meeting Document : WG-EMM-16/38 : Автор(ы): S. Fielding, A. Cossio, M. Cox, C. Reiss, G. Skaret, D. Demer, J. Watkins and X. Zhao
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Engaging ‘the crowd’ in citizen science and remote sensing to learn about habitat affinity of two Southern Ocean seals
presence/absence patterns of the Weddell seal (Leptonychotes weddellii), and has recently been adapted for ... efficient method to screen large numbers of images (and hence area) for undertaking census counts of Weddell ... images of the pack ice acquired during October 2018 in the Weddell Sea to identify presence/absence of ... 852 VHR images, composed of a series of tiles called “maps”, across both campaigns. The circum ...
Meeting Document : WG-EMM-2019/37 : Автор(ы): M.A. LaRue, D.G. Ainley, J. Pennycook, K. Stamatiou, M. Dozier, J. Saints, L. Sales, N. Nur, S. Stammerjohn and L. Barrington
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Species profile of mackerel icefish (Champsocephalus gunnari)
and became the target species of fisheries in many parts of the low-Antarctic from 1975 to 1990 ... . Exploitation has been limited to South Georgia and Heard and McDonald Islands since the second half of the 1990 ... ’s with annual catches of a few thousand tonnes in each of the two areas. Aspect of the biology and ... exploitation of the species have been summarized in Kock and Everson (2003) and Kock (2005). Additional ...
Meeting Document : WG-FSA-07/12 : Автор(ы): K.-H. Kock (Germany) and I. Everson (UK)
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