Search results
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Competition-mediated prey availability drives Adélie penguin (Pygocelis adeliae) chick size, mass and condition at colonies of differing size in the southern Ross Sea
, and the interactions between them, is a key component in understanding the factors driving changes in animal ... . The presence of two giant icebergs from 2001 to 2005 increased sea ice concentrations, reducing adult foraging ... between them, is a key component in understanding the factors driving changes in animal populations.  ... environmental variability. The presence of two giant icebergs from 2001 to 2005 increased sea ice ...
Meeting Document : WG-EMM-13/31 : Author(s): A.L. Whitehead (Australia), P. O’B. Lyver (New Zealand), G. Ballard (USA), K. Barton, B.J. Karl (New Zealand), D.G. Ainley, K. Dugger, S. Jennings (USA), A. Lescroël (France) and P.R. Wilson (New Zealand)
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A brief outline of the biology of the Antarctic silverfish, Pleuragramma antarcticum Boulenger, 1902 (Nototheniidae) from the Antarctic Indian Ocean
of age. The potential absolute and relative fertility of this species is one of the highest for high ... of age. The potential absolute and relative fertility of this species is one of the highest for high ... three relatively isolated groups. Fish aged from 0+ to 3+ years live in the epi- mesopelagic zone where ... there are macro aggregations of plankton, while fish aged from 3+ to 12+ years form near-bottom, pelagic schools ...
Meeting Document : WG-FSA-92/11 Rev. 1 : Author(s): V.V. Gerasimchuk (Ukraine)
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Rajid by-catch in the longline fishery for toothfish in Subarea 48.3
Rocks and South Georgia, achieved average catch rates of over 1 ray/thousand hooks, and 20-30 rays ... and South Georgia, achieved average catch rates of over 1 ray/thousand hooks, and 20-30 rays/ thousand ... / thousand toothfish. Catch rates were lowest to the south and east of South Georgia. The two species most ... -69cm for males and 80-84cm for females, for B. murrayi was 65-69cm and 70-74cm for males and females ...
Meeting Document : WG-FSA-99/40 : Author(s): D.J. Agnew, J. Taylor and I. Everson (United Kingdom)
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Development of the Southern Ocean Continuous Plankton Recorder survey
the 1925–1927 Discovery Expedition, and has been used successfully for 70 years to monitor plankton ... in the North Sea and North Atlantic Ocean. Sixty-five years later the CPR as a Type II version returned ... south on 110°E in early December and north on 150°E in mid-March each year, and will serve ... the Australian data. Since 1991, over 90 tows have been made, providing over 36,000 nautical miles of records ...
Meeting Document : WS-BSO-07/P4 : Author(s): Hosie, G., M. Fukuchi and S. Kawaguchi
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Length-age composition of the Patagonian toothfish, Dissostichus eleginoides, from the Kerguelen Island area
considerably, mean fish length was 76.0- 86.6 cm. Fish of two to 14 years old age groups were most abundant ... considerably, mean fish length was 76.0 - 86.6 cm. Fish of two to 14 years old age groups were most abundant ... in catches, mean age was 8.2- 9.8 years. In the 1991/92 season fishing for the species was concentrated ... was 5.8 years. Mean length of fish taken at 540- 600 m depth was 85.8, mean age was 9.7 years. Results ...
Meeting Document : WG-FSA-92/08 : Author(s): V.G. Prutko and V.N. Chikov (Ukraine)
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The direct impact of fishing and fishery-related activities on marine life in the CCAMLR Convention Area with particular emphasis on longline fishing and its impact on albatrosses and petrels – a review
one season. A number of direct effects from fishing activities can be seen on marine life ... for Dissostichus eleginoides spread over most of the Southern Ocean within one season. A number of direct effects ... Abstract: Finfishing started in the Southern Ocean more than 30 years ago at South Georgia ... and Iles Kerguelen. The fishery extended further south for a few years in the second half of the 1970039 ...
Meeting Document : SC-CAMLR-XIX/BG/11 : Author(s): Delegation of Germany
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Review of biological parameters for Ross Sea skates
this may be a considerable underestimate, and true longevity may exceed 20 years. Age at sexual maturity ... be a considerable underestimate, and true longevity may exceed 20 years. Age at sexual maturity for A. georgiana ... or age at maturity estimate is available for B. cf. eatonii. Author(s): M.P. Francis (New Zealand) Title ... or age at maturity estimate is available for B. cf. eatonii. ...
Meeting Document : WG-FSA-06/31 : Author(s): M.P. Francis (New Zealand)
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A brief exploitation of the stone crab Lithodes murrayi (Henderson) off south west Africa, 1979/80
to commercial fishing, there was a densely populated region between 24°00039;S and 24°40039;S, although ... the crabs were present in small numbers over a much larger area. Over 90 per cent of the fishing effort ... exploitation of the stone crab Lithodes murrayi (Henderson) off south west Africa, 1979/80 Approval: Approved ... over a much larger area. Over 90 per cent of the fishing effort was applied in this area of high ...
Meeting Document : WS-CRAB-93/21 : Author(s): R. Melville-Smith (South Africa)
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Aerobic dive limit: how often does it occur in nature?
Abstract: Diving animals offer a unique opportunity to study the importance of physiological ... animal is it’s aerobic dive limit (ADL). The ADL has only been measured in a few species. The goal ... animals of three species of otariids, the Antarctic fur seal, Arctocephalus gazella, the Australian sea ... with the dive pattern of individual animals. In both Antarctic Fur Seals and Australian sea lions, deeper diving ...
Meeting Document : WG-EMM-00/48 : Author(s): D.P. Costa, N.J. Gales and M.E. Goebel (USA)
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Entanglement of Antarctic fur seals in marine debris at Cape Shirreff and San Telmo Islets, Livingston Island, Antarctica: 1988–1997
females, one juvenile male, and two pups). The total percentage of entangled animals versus total ... ) and nylon ropes. We have managed to liberate 35% of the total entangled animals (four females, one juvenile ... male, and two pups). The total percentage of entangled animals versus total population in the area per ... in marine debris (neck collars) at SSSI N°32 and CEMP site 039;Cape Shirreff and San Telmo islets039 ...
Meeting Document : SC-CAMLR-XVI/BG/33 : Author(s): Delegation of Chile