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An assessment of temporal variability and interrelationships between CEMP parameters collected on Adélie penguins at Béchervaise Island
Abstract: We examined temporal variability in a series of CEMP parameters collected over the ... the correlation of each parameter with breeding success. Breeding success was measured in terms of 1 ... sex of the foraging birds and the timing of foraging trips were important in determining whether ... ) the absolute number of chicks on the island which fully crèche and 2) the number of chicks crèched per ...
Meeting Document : WG-EMM-02/46 : Автор(ы): L.M. Emmerson, J. Clarke, K. Kerry and C. Southwell (Australia)
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Fitting Euphausia superba into Southern Ocean food-web models: a review of data sources and their limitations
include krill in food-web models and to guide modellers to key sources of data. It describes the strengths ... . Temporally, the intense (order of magnitude) interannual variability in krill population size within the ... are still not yet confident which are the major predators of krill but studies increasingly suggest ... Paper Title: Fitting Euphausia superba into Southern Ocean food-web models: a review of data ... tend to concur that mean krill den- sity and recruitment strength declined in the latter decades of ... superba). This is because (i) they have an important role in the food web of parts of the Southern Ocean ... (order of magnitude) interannual variability in krill population size within the southwest (SW) Atlantic ... ). They have also been found in the diets of benthic predators (Dearborn et al., 1991; Main and Collins ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 219–245 : Автор(ы): A. Atkinson, S. Nicol, S. Kawaguchi, E. Pakhomov, L. Quetin, R. Ross, S. Hill, C. Reiss, V. Siegel, G. Tarling (submitted to the 2008 Joint CCAMLR-IWC Workshop)
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Global relationships amongst black-browed albatrosses: analysis of population structure using mtDNA and microsatellites
five island groups in the Southern Ocean. High levels of sequence divergence were found in both taxa ... could be the result of differences in foraging and dispersal patterns. Breeding black-browed albatrosses ... Abstract: The population structure of black-browed (Thalassarche melanophris and T. impavida) and ... (T. impavida). T. melanophris from Campbell Island contain birds from each of the three groups ...
Meeting Document : WG-FSA-01/19 : Автор(ы): T.M. Burg and J.P. Croxall (United Kingdom)
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An exploratory analysis of skate speciation using DNA identification techniques
region, were sequenced in specimens of Antarctic skates from the Ross Sea (Pacific Ocean sector), the ... Abstract: Two regions of the mitochondrial DNA, part of the cytochrome b gene and the control ... Islands (Atlantic Ocean sector). Based on the DNA results, the species of Bathyraja referred to as B ... . eatonii in the Ross Sea appears to be a discrete sister species to B. eatonii from the Atlantic sector. In ...
Meeting Document : WG-FSA-04/27 : Автор(ы): P.J. Smith and S.M. McVeagh (New Zealand)
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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 ... ’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 ... . Exploitation has been limited to South Georgia and Heard and McDonald Islands since the second half of the 1990 ...
Meeting Document : WG-FSA-07/12 : Автор(ы): K.-H. Kock (Germany) and I. Everson (UK)
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Fishing patterns of Japanese krill trawlers
, 30nm, and 60nm). Distribution of the operation units showed considerable variation in space and time ... expressing the status of krill in the fishing ground. Catch per fishing days maybe the reasonable index for ... expressing the status of krill in the fishing ground. Author(s): S. Kawaguchi, T. Kameda and Y. Takeuchi ... strategies, especially focusing on their movement in time and space. The operations were grouped into ...
Meeting Document : WG-EMM-02/28 Rev. 1 : Автор(ы): S. Kawaguchi, T. Kameda and Y. Takeuchi (Japan)
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Standardisation of commercial CPUE
Abstract: This paper reports analysis of CPUE data on cod in the Barents Sea. The potential of ... vessel trawling operations take place at acceptable proximity in time and space. The methodological ... approach might be of interest for the longline fishery for tothfish as well as for the trawl fishery on ... krill. A model for standardisation of fishing power for individual vessels in a commercial fishing fleet ...
Meeting Document : WG-SAM-15/P01 : Автор(ы): A. Salthaug and O.R. Godø
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Estimating penguin populations using image analysis of colour aerial photography
Abstract: Penguin populations are potentially sensitive indicators of change in the Antarctic and ... sub-Antarctic and are used extensively to monitor changes in the marine ecosystem. Aerial photographic ... colonies, for colonies in areas of complex terrain, or for colonies where ground access is difficult ... study colonies, highlighting various assumptions that contribute to differences in the population ...
Meeting Document : WG-EMM-02/34 Text : Автор(ы): P.N. Trathan (United Kingdom)
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On commercial significance of krill aggregations
of acoustic investigation obtained in the Soviet trawler operation areas in Subareas 48.1-48.4 were ... and 2002 (2380 hauls). In the course of the recent twenty years, krill has been fished in the areas ... numbering 22000 hauls for the period of 1986-1990 and those from Ukrainian trawlers for the period of 2001 ... estimated at 24 g/m2 (Boyd, 2001). As is evident from comparison of above density values, the fleet and ...
Meeting Document : WG-EMM-03/31 : Автор(ы): S.M. Kasatkina (Russia)
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UPDATE ON ITEMS OF INTEREST TO WG-IMAF
potential for use in the CCAMLR context. Author(s): N. Walker (New Zealand) Title: UPDATE ON ITEMS OF ... Economic Zone that are relevant to the work of WG-IMAF. These developments include refinement of the ... requirement of fishing practices to reduce seabird bycatch by surface longline vessels and the introduction of ... regulations to reduce seabird bycatch by bottom longline vessels. The bycatch of seabirds by fisheries within ...
Meeting Document : WG-FSA-08/47 : Автор(ы): N. Walker (New Zealand)
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