Search results
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Relative abundance of large whales around South Georgia
whaling in 1965, we report three independent sighting databases: a cruise in 1997, observations from Bird ... photographed off South Georgia matched animals known from Peninsula Valdes, Argentina, a population known to be ... growing at 7% per annum. In contrast, blue and fin whales appear to be less abundant. A single blue whale ...
Meeting Document : WG-EMM-99/34 : Author(s): M.J. Moore (USA), S.D. Berrow (UK), B.A. Jensen (USA), P. Carr (UK), R. Sears (Canada) and V.J. Rowntree, R. Payne and P.K. Hamilton (USA)
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Increase in relative abundance of fjord Notothenia rossii in Potter Cover, South Shetland Islands, after the decrease associated with commercial fishing in the area
Abstract: A monitoring program of demersal fish in inshore sites of the South Shetland Islands ... has continued in Potter Cove from 1991 to 1999, covering a continuous sampling period of sixteen years ... non commercially fished Notothenia coriiceps, which was already reported for the period 1983-1990 in a ...
Meeting Document : WG-FSA-99/30 : Author(s): E.R. Barrera-Oro, E.R. Marschoff and R.J. Casaux (Argentina)
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The diet of toothfish species Dissostichus eleginoides Smitt and D. mawsoni Norman with overlapping distributions around the South Sandwich Islands, Southern Ocean
correlated with their relative abundance around the islands derived from fishery bycatch data, suggesting a ... carnivores and finds that D. mawsoni and D. eleginoides occupy a similar trophic niche and are likely to ... feeding behaviour, which may reflect the increased metabolic demands of a cold water-adapted physiology ...
Meeting Document : WG-FSA-11/P03 : Author(s): J. Roberts, J. Xavier and D. J. Agnew
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Aggregation patterns of pelagic predators and their principal prey, Antarctic krill, near South Georgia
predators that feed upon krill. 2. Our data were collected in February 1986, during a systematic shipboard ... using strip transects, and krill abundance was simultaneously estimated using a hull-mounted echosounder ... seals were distributed in a strikingly non-random fashion at sea near South Georgia; their ...
Meeting Document : WG-CEMP-93/13 : Author(s): R.R. Veit (USA), E.D. Silverman (USA) and I. Everson (United Kingdom)
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Oceanic condition and zooplankton distribution/ abundance in Bransfield Strait during austral summer 1989/1990
to hydrographic condition, a total of 29 sampling stations was occupied for the CTD casts and ... plankton towings in a systematic grid from December 29, 1989 to January 7, 1990. Comparisons of temperature ... . Bellingshausen Sea water enters near Low Island, then, mainly flows toward Deception Island. A total of 39 taxa ...
Meeting Document : WG-KRILL-91/14 : Author(s): S.M. Kim and M.S. Suk (Korea)
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Antarctic ecosystem management
Abstract: This document describes a framework within which an initial strategy could be developed ... action that is regarded as practicable. The research includes (a) identifying those components (species ... . With regard to interim management action, it is recommended that (a) management areas should be ...
Meeting Document : WG-DCH-84/03 : Author(s): D.S. Butterworth (South Africa)
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ANALYSIS OF VARIABILITY OF KRILL SIZE AND FISH BY-CATCH IN JAPANESE KRILL FISHERY BASED ON SCIENTIFIC OBSERVER DATA
fish, observer data sets on Japanese krill fishery from 1995 to 2008 were analyzed by using a ... , and haul) based on a state-space model, which can separate biological process error in the population ... variability of krill population structure and a difficulty in predicting krill population dynamics. Variances ...
Meeting Document : WG-EMM-11/39 : Author(s): T. Okuda and M. Kiyota (Japan)
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Seabird by-catch by tuna longline fisheries off southern Africa, 1998–2000
, seabird bycatch rates were high, with a mean of 1.6 birds killed per 1 000 hooks. Japanese vessels (1 ... % effort observed) had a higher bycatch rate (2.6 birds per 1 000 hooks, range per trip 0.1–5.4) than South ... African vessels (0.8, range 0.0–4.3; 17% effort observed), possibly as a result of gear differences. Bird ...
Meeting Document : WG-FSA-01/28 : Author(s): P.G. Ryan, D.G. Keith and M. Kroese (South Africa)
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Trends in entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at South Georgia
Abstract: A study conducted at South Georgia in 1988/1989 indicated that several thousand ... of recording entangled fur seals confirms that entanglement is a persistent problem, although its ... bands and the fact that all such bands washed ashore over the last 2 years have been cut, does suggest a ...
Meeting Document : SC-CAMLR-XV/BG/03 : Author(s): Delegation of the United Kingdom
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ENTANGLEMENT OF ANTARCTIC FUR SEALS ARCTOCEPHALUS GAZELLA IN MAN-MADE DEBRIS AT BIRD ISLAND, SOUTH GEORGIA DURING THE 2007 WINTER AND 2007/08 BREEDING SEASON
March 2008 a total of 36 entangled seals were observed. Sixteen and 20 entanglements were observed in ... the winter period showed a decrease in the number of entanglements compared to the high levels during ... summer period showed a small rise in the number of entanglements compared with the previous season, but ...
Meeting Document : WG-FSA-08/27 : Author(s): E.W.J. Edwards (UK)