Search results
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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)
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Age and growth in length of Micromesistius australis, Norman, 1937 (Pisces, Gadidae), in the southern zone of the Argentine Sea
paraffin inclusion and cutting technique. A distribution of length frequencies for each sex was made. A ... curves were made up; one for males and the other for females. A linear regression was made and the ...
Meeting Document : SC-CAMLR-V/BG/31 : Author(s): Delegation of Argentina
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Annual Report from SCAR to CCAMLR
work on climate change communications, which will be a significant activity over the next year. The ... ). SCAR looks to CCAMLR as a key partner in this initiative. Three new potential Scientific Research ... 21st Century (AntClim21). As the SRP of most direct relevance to CCAMLR, AntEco has a CCAMLR ...
Meeting Document : CCAMLR-XXX/BG/15 : Author(s): Submitted by SCAR
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Diet components and trophic interactions in five demersal fish in CCAMLR Subarea 48.3
aceratus, Pseudochaenichthys georgianus, Notothenia rossii and Dissostichus eleginoides, on a cruise ... . georgianus shows a diet where crustaceans and fishes had similar values of %PSIRI and D. eleginoides ate only ... predators. Cluster analysis shows a grouping between C. gunnari and N.rossii, whose principal preys was ...
Meeting Document : WG-FSA-13/60 : Author(s): N.R. Marí and G.H. Troccoli (Argentina)