Résultats de la recherche
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Preliminary results on the diet of the snow petrel Pagodroma nivea at Laurie Island, Antarctica, during the 1997/98 breeding season
Abstract: The diet of the Snow Petrel Pagodroma nivea was investigated at Laurie Island, South ... Orkney Islands, (60¡46'S, 44¡42'W), Antarctica, over the period January-February of 1998 ... . Stomach contents and regurgitates of adults were sampled during the chick-rearing period. Fish, followed ... further studies on the composition of the diet of the Snow Petrel as well as on the distribution and ...
Meeting Document : WG-EMM-00/11 : Auteur(s): G. Soave, V. Ferretti, N. Coria and R. Casaux (Argentina)
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An exact time of release and recapture stock assessment model applied to Macquarie Island Patagonian toothfish (Dissostichus eleginoides)
Abstract: This paper presents an assessment of the harvested population of Patagonian toothfish ... fishing season. Population models that include dynamics of tagged and un-tagged fish, daily releases ... , catches, recaptures, natural mortality, and annual net recruitment are used to assess the population of ... one of the main fishing regions of Macquarie Island: Aurora Trough. The pre-tagging abundance is ...
Meeting Document : WG-FSA-00/43 : Auteur(s): G. Tuck, W. de la Mare, W. Hearn, R. Williams, A. Smith, X. He and A. Constable (Australia)
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THE USE OF PATENT DATABASES TO DETECT TRENDS IN THE KRILL FISHERY
over the utility of these sources of information to detect trends, and of the need to obtain more ... number and type of patents related to krill that are lodged annually. This information matches well with ... database be taken over by the Secretariat so that they can maintain an annual register of krill related ... patents which will be of use for indicating future trends in the krill fishery. Author(s): Delegation of ...
Meeting Document : SC-CAMLR-XXVIII/BG/15 : Auteur(s): Delegation of Australia
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ON INCIDENTAL MORTALITY OF ANTARCTIC KRILL AT KRILL FISHERY
Abstract: Analysis of the Antarctic krill (Euphausia superba) commercial and research fishery in ... 1970-ies and 1980-ies showed that different modifications of midwater trawls applied had comparatively ... 40-50% of the «percolated» individuals were injured, at the same time while «punched» through small ... meshes of the trawl codend 60 to 100% of individuals perished. There are two main aspects of this problem ...
Meeting Document : WG-EMM-09/11 : Auteur(s): L. Pshenichnov (Ukraine)
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LENGTH AND AGE AT SPAWNING OF ANTARCTIC TOOTHFISH DISSOSTICHUS MAWSONI IN THE ROSS SEA
Abstract: This study uses a histological assessment of age and length at spawning for female and ... fishing seasons. The female spawning ogive incorporates the proportion of sexually mature fish that do not ... management decision rules. A characterisation of the oocyte developmental cycle of Antarctic toothfish shows ... vitellogenic phase over at least a 6–12 month period, resulting in a developed batch of oocytes accumulating at ...
Meeting Document : WG-FSA-09/37 : Auteur(s): S.J. Parker and P.J. Grimes (New Zealand)
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OCEANIC CIRCUMPOLAR HABITATS OF ANTARCTIC KRILL
Abstract: Surveys of Euphausia superba often target localised shelves and ice edges where their ... , with 70% of the total stock concentrated between 0o and 90oW. Within this Atlantic sector, krill are ... inner shelf whereas in the Indian-Pacific sectors krill prevail in the ocean within 200-300 km of the ... shelf break. Overall, 87% of the total stock live over deep oceanic water (>2000 m) and krill occupy ...
Meeting Document : WG-EMM-08/P04 - Abstract : Auteur(s): A. Atkinson, V. Siegel, E. A. Pakhomov, P. Rothery, V. Loeb, R.M. Ross, L.B. Quetin, K. Schmidt, P. Fretwell, E.J. Murphy, G.A. Tarling and A.H. Fleming
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Establishment of a CEMP monitoring program at Bouvetøya
western coast of the island during the 1996/97 field season. Species included in the monitoring program ... (1996/97), monitoring of the following parameters were initiated for the two species of penguins ... : Breeding population size CA3), Age-specific annual survival and recruitment (A4), Duration of foraging ... Seal, the.. program includes monitoring of Duration of cow foraging/attendance cycles (C 1) and Pup ...
Meeting Document : SC-CAMLR-XVI/BG/04 : Auteur(s): Delegation of Norway
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A comparison between the estimated density of krill from an acoustic survey with that obtained by scientific nets on the same survey
Abstract: This work presents the initial comparative analysis of acoustic and net haul krill ... part of a hydroacoustic biomass survey for Antarctic krill in CCAMLR Division 58.4.1. The acoustic ... found between the two data sets. Several orders of magnitudes were seen in the range of variation ... , excluding sites where krill represented less than 90% of the catch. This reduction in variation was thus ...
Meeting Document : WG-EMM-97/43 : Auteur(s): Pauly, T., Higginbottom, I., Hosie, G., de la Mare, W.K., Nicol, S.
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On the accuracy of the pellet analysis method to estimate the food intake in the Antarctic shag Phalacrocorax bransfieldensis
Abstract: The accuracy of correction factors estimated to compensate the digestion and loss ... through the gastrointestinal tract of the otoliths of fish represented in pellets of the Antarctic Shag ... Phalacrocorax bransfieldensis was tested at two localities of the South Shetland Islands. F or such purpose, the ... results from the analysis of 226 and 115 pellets collected at Harmony Point and at Duthoit Point ...
Meeting Document : WG-EMM-97/61 : Auteur(s): Casaux, R.
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Preliminary results on by-catch of fish during krill fishery in March to May 1993 on the polish trawler M/T Lepus
Abstract: From the end of March to the beginning of May. 1993, during fishing operations for ... , investigations were• carried out to determine biological/fisheries characteristics of the exploited stocks. One ... of their goals was to determine the proportion of juvenile fish forms in krill concentrations. The ... present study gives the results of these observations. It appears from the investigations that the by ...
Meeting Document : WG-FSA-94/25 : Auteur(s): Z. Cielniaszek and R. Pactwa (Poland)