Résultats de la recherche
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A summary of the commercial fishery for mackerel icefish Champsocephalus gunnari in Subarea 48.3 during the 1997/98 season
days between 25 December 1997 and 5 January 1998. The total catch of C. gunnari was 5.04 tonnes in 34 ... hauls. 67% of this catch was taken in just two hauls, confirming the patchy distribution of this species ... . Most of the catch was made up of fish between 22 and 30 cm long. Fish of this size range have ... previously been shown to be ages two and three. The catch of species other than C. gunnari amounted to only ...
Meeting Document : WG-FSA-98/53 : Auteur(s): G. Parkes, A. King and C. Jones (United Kingdom)
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Diet and prey consumption of Antarctic petrels Thalassoica antarctica at Svarthamaren, Dronning Maud Land and at sea outside the colony
Abstract: The diet of the Antarctic petrel Thalassoica antarctica was studied during two years at ... found in other diet studies. Estimates of food consumption for birds breeding at Svarthamaren (c ... . 250,000 pairs) indicate that the take approximately 6,600 tons of Crustaceans, 2,600 tons of fish and 485 ... tons of squid during the breeding season. Furthermore, their annual consumption is estimated to 34,800 ...
Meeting Document : WG-EMM-97/58 : Auteur(s): Røv, N., Lorentsen, S., Klages, N.
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Population numbers of fur seals at Prince Edward Island, Southern Ocean
south-east coast of the island; the first a mixed (with Subantarctic fur seals) breeding colony with an ... Abstract: During the period 17–22 December 2001, the onshore distribution and the abundance of ... Prince Edward Island (46°38´S, 37°57´E). Two breeding colonies of Antarctic fur seals were located on the ... estimated 24 pups on a vegetated promontory on the northern section of Boggel Beach, and the second, a ...
Meeting Document : WG-EMM-03/18 : Auteur(s): M.N. Bester, P.G. Ryan and B.M. Dyer (South Africa)
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Southern royal albatross Diomedea epomophora census on Campbell Island, 4 January–6 February 1996, and a review of population figures
was counted. Comparisons of different field census techniques and a measure of the rate of egg loss ... Abstract: A census of breeding Southern Royal Albatross was undertaken at Campbell Island during ... the period 4 January to 6 February 1996 of the 1995-96 breeding season. A total of 7787 occupied nests ... January-February 1995, much of which could be explained by some larger survey blocks being counted more ...
Meeting Document : SC-CAMLR-XVII/BG/13 : Auteur(s): Delegation of New Zealand
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IDENTIFICATION OF DATA QUALITY METRICS FOR TAGGING DATA SELECTION
rates of recapture of tags released by the trip, and above-median tag recapture rates by the trip.A ... Abstract: The suite of data quality metrics introduced by Middleton & Dunn (2008) is examined ... to identify those metrics that are most informative with respect to the identification of good ... bootstrap analysis indicates that the range of data quality metrics associated with known good tagging data ...
Meeting Document : WG-SAM-09/19 : Auteur(s): D.A.J. Middleton and A. Dunn (New Zealand)
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Analysis of the stomach content in the blue-eyed shag Phalacrocorax atriceps bransfieldensis at Nelson Island, South Shetland Islands
or loss of the otoliths through the gastrointestinal tract. The analysis of the stomach contents is ... Abstract: Forty stomach contents of the blue eyed shag Phalacrocorax bransfieldensis were sampled ... at Nelson Island, South Shetland Islands, in January 1994. The analysis of the diet showed that fish ... number (47%). The comparison with data published on pellets analysis of shags from the same colony gave ...
Meeting Document : WG-CEMP-94/31 : Auteur(s): N. Coria, R. Casaux, M. Favero and P. Silva (Argentina)
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CPUEs and body length of Antarctic krill density during the 1997/98 season in Area 48
and north east of South Georgia. Size composition differed among the areas. In the west of the ... differed among the periods. In the north east of South Georgia, single mode (approx. 37-39mm) with narrow ... winter of 1997/98 season in the Area 48. The fishing grounds were formed around the South Shetland ... Islands, west of the Antarctic Peninsula, and around the South Orkneys Islands from mid-December to mid ...
Meeting Document : WG-EMM-99/48 : Auteur(s): S. Kawaguchi (Japan)
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An overview of tagging skates (Rajiformes) and CCAMLR skate tagging data
tag loss and tag shedding rates in fish (with emphasis on elasmobranchs), a summary of CEFAS tagging ... Abstract: Tagging studies of skates and rays worldwide provide valuable information to help ... better understand a wide range of metrics including movements and migrations, stock units, growth rates ... potentially valuable data source to better understand this group of fish. Despite tagging programmes being ...
Meeting Document : WG-SAM-13/25 Rev. 1 : Auteur(s): S.R. McCully, D. Goldsmith, G. Burt, R. Scott and J.R. Ellis (United Kingdom)
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An overview of tagging skates (Rajiformes) and CCAMLR skate tagging data
tag loss and tag shedding rates in fish (with emphasis on elasmobranchs), a summary of CEFAS tagging ... Abstract: Tagging studies of skates and rays worldwide provide valuable information to help ... better understand a wide range of metrics including movements and migrations, stock units, growth rates ... potentially valuable data source to better understand this group of fish. Despite tagging programmes being ...
Meeting Document : WG-FSA-13/33 : Auteur(s): S.R. McCully, D. Goldsmith, G. Burt, R. Scott and J.R. Ellis (United Kingdom)
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Poor breeding success of the Adélie penguin at Béchervaise Island in the 1998/99 season
island. Evidence from analyses of foraging location, foraging trip duration and diet led to the ... Abstract: This paper describes the diet and foraging behaviour of Ad6lie penguins at B6chervaise ... Island during 1998-99, a season of high chick mortality. One thousand nests perished in the three weeks ... following first hatch, when the chicks were very small. A total of 802 chicks reached crèche age from 1880 ...
Meeting Document : WG-EMM-99/25 : Auteur(s): L. Irvine, J.R. Clarke and K.R. Kerry (Australia)