Résultats de la recherche
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Bird Island, South Georgia during the 1999 winter and the 1999/2000 pup rearing season
and a 94% decrease on the highest previous total (1992). Four of these animals wereentangled in ... on the 1998 winter. The number of seals observed entangled in the summer was the second lowest ... recorded to date,being 42% lower than in the 1998/99 season. The proportion of adult animals affected was ... number of entanglements in polypropylene straps showed an increase by12.5% onthe 1998/99 season. The low ...
Meeting Document : SC-CAMLR-XIX/BG/02 : Auteur(s): Delegation of the United Kingdom
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Relationship between distribution of Antarctic krill (Euphausia superba) and environmental index MTEM-200 in the Antarctic Ocean throughout the year
concentrated in three waters in the east Antarctic Ocean, the Scotia Sea, and north of South Georgia Island ... in the Scotia Sea, and north of South Georgia Island, respectively. Similarly, the historical krill ... isopleths of MTEM-200 substantially corresponded with each oceanic front in the Southern Ocean. MTEM-200 can ... Abstract: Antarctic krill (Euphausia superba) is the key species of the Antarctic marine ...
Meeting Document : WG-EMM-08/32 : Auteur(s): M. Naganobu, T. Kitamura and K. Hasunuma (Japan)
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An updated spatially explicit population dynamics operating model for Antarctic toothfish in the habitable depths of the Ross Sea region
spatial distribution and movement of Antarctic toothfish in the Ross Sea region given the movement ... hypothesis proposed. Further data collection would be useful to improve the parameterisation of the model, in ... operating model for Antarctic toothfish in the habitable depths of the Ross Sea region Approval: Approved ... model for Antarctic toothfish in the Ross Sea region, for a medium scale spatial resolution (189 spatial ...
Meeting Document : WG-SAM-14/31 : Auteur(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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Modelling the predator–prey interactions of krill, baleen whales and seals in the Antarctic ecosystem
Abstract: The history of human harvests of seals, whales, fish and krill in the Antarctic is ... ) species. The model commences in 1780 (the onset of fur seal harvests) and distinguishes the Atlantic ... /Indian and Pacific sectors in view of the much larger past harvests in former. A reference case and five ... Africa) Title: Modelling the predator–prey interactions of krill, baleen whales and seals in the ...
Meeting Document : WG-EMM-05/34 : Auteur(s): M. Mori and D.S. Butterworth (South Africa)
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The structure and spatial distribution of Antarctic krill aggregations from acoustic observation in the South Georgia area
significant distinctions in spatial distribution patterns of krill in the northwestern and the northeastern ... that in winter months in the northwestern part where foraging areas of dependent predators are located ... 100 g/m2 determined as potential fishing grounds were located in the northeastern part of South ... Georgia. Comparison of krill aggregations structure in the northwestern and the northeastern parts of ...
Meeting Document : WG-EMM-04/66 Rev. 1 : Auteur(s): S.M. Kasatkina (Russia)
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PROPOSAL FOR AN EXTENSION TO THE MARK–RECAPTURE EXPERIMENT TO ESTIMATE TOOTHFISH POPULATION SIZE IN THE SOUTH OF SUBAREA 48.4
Abstract: 1. A three-year tagging study in the South of Subarea 48.4 was initiated in the 2008/09 ... , size, movement and growth of both Dissostichus eleginoides and Dissostichus mawsoni in the South of ... those experienced in the North of 48.4. 196 Amblyraja georgiana and 1 Bathyraja eatonii were tagged and ... experiment in the South of Subarea 48.4 in 2009/10 with a combined catch limit of 75 tonnes for Dissostichus ...
Meeting Document : WG-FSA-09/18 : Auteur(s): J. Roberts and D.J. Agnew (United Kingdom)
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Surface water masses, primary production, krill distribution and predator foraging in the vicinity of Elephant Island during the 1989-90 austral summer
). Examination of interrelations between the various physical and biological components measured in the study ... sampling scale of the ship compared to the predator. 6) Krill found in chinstrap penguin stomach samples ... : Surface water masses, primary production, krill distribution and predator foraging in the vicinity of ... Abstract: Four successive surveys of the pelagic marine environment were conducted over a 100-by ...
Meeting Document : WG-CEMP-90/11 : Auteur(s): A.F. Amos, J.L. Bengtson, O. Holm-Hansen, V.J. Loeb, M.C. Macaulay and J.H. Wormuth (USA)
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ESTIMATION OF MANAGEMENT REFERENCE POINTS CONSISTENT WITH THE CATCH TRIGGER LEVEL FOR THE ANTARCTIC KRILL FISHERY IN AREA 48
of F and SSB reference points for the krill stock in Area 48 consistent with the catch trigger level ... design feature of the Generalised Yield Model in place to prevent projections from running with ... potentially significant bias in projected recruitment resulting from poor parameterisation of the beta ... biomass reference points for the krill fishery in CCAMLR Area 48 consistent with the catch trigger level ...
Meeting Document : WG-EMM-11/17 : Auteur(s): T. Peatman, J. Moir Clark, D.J. Agnew (UK)
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A characterisation of the toothfish fishery and tagging programme in the Amundsen Sea region (SSRUs 88.2C–H) through 2015–16
88.2C-G) into four smaller research blocks in order to increase the likelihood of recaptures of ... information on the size of the population. Furthermore, 11 tagged fish were recaptured in the north (SSRU ... Abstract: This report provides a characterisation of the toothfish fishery and associated tagging ... programme in the Amundsen Sea Region (SSRUs 88.2C–H) up to and including the 2015/16 fishing year. A ...
Meeting Document : WG-FSA-16/45 : Auteur(s): K. Large, S. Parker and S. Hanchet
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Some characteristics of krill transport in the Scotia Sea based on the Russian survey data
Abstract: In this work the characteristics of krill transport across the SSMUs determined on the ... . Berezhinsky (Russia) Title: Some characteristics of krill transport in the Scotia Sea based on the Russian ... basis of long-term Russian research in Area 48 are considered. Estimates of mean current velocities ... based on the long-term data from 3012 stations and respective time intervals when the water mass in the ...
Meeting Document : WG-EMM-05/41 : Auteur(s): S.M. Kasatkina, V.N. Shnar and O.V. Berezhinsky (Russia)