Resultados de la búsqueda
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Managing ecosystem uncertainty: critical habitat and dietary overlap of top-predators in the Ross Sea
managers of the close spatial and temporal ecological overlaps among top predators in the Ross Sea Shelf ... ) demonstrated that space-time overlap is critical to predicting the degree to which a fishery might affect a ... food web. The fisheries that we contemplate are those for Antarctic toothfish and the Antarctic minke ... whale, though other species might also soon be exploited in the Ross Sea region. In addition to those ...
Meeting Document : WG-EMM-06/29 : Autor(es): Testa, J.W., Stewart, B.S., Olmastroni, S., Lyver, P., Karl, B., Eastman, J., Barton, K., Ballard, G., Toniolo, V., Wilson, P., Ainley, D.
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An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) in Division 58.5.2 using CASAL
using CASAL and demonstrates that all of the data available for assessments, including surveys, fishery ... -binned mark-recapture data, can be incorporated into the model. Earlier difficulties in using CASAL have ... been resolved. The results presented here indicate a general downward bias in the expected recaptures ... showing that the mark-recapture observations indicates a smaller stock size than the other datasets. This ...
Meeting Document : WG-FSA-06/64 : Autor(es): A. Constable, S. Candy, T. Lamb and I. Ball (Australia)
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Exploratory analysis of acoustic data from the Ross Sea
Abstract: This report presents results from a pilot study to determine the feasibility of ... conducting acoustic surveys for toothfish and rattails in the Ross Sea. Acoustic data were collected using a ... Simrad ES60 38 kHz echosounder on the New Zealand commercial longliner FV Janas during the 2002–03 ... analyses focused on the subset of acoustic data collected when setting longlines so acoustic recordings ...
Meeting Document : WG-FSA-SAM 03/9 : Autor(es): R.L. O’Driscoll and G.J. Macaulay (New Zealand)
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Hydrography and acoustic biomass estimates of Antarctic krill (Euphausia superba) near the South Shetland Islands, Antarctica, during January 2000: preliminary results
Abstract: To estimate the abundance and distribution of Antarctic krill (Euphausia superba) in ... the vicinity of South Shetland Islands (SSI), a hydroacoustic/oceanographic survey was conducted by ... the R/V Onnuri from 9 to 19 January 2000. The acoustic data were obtained using a Simrad EK500 ... echosounder operating at 38, 120, and 200 kHz, from 8 transects comprising the South Shetland Islands (SSI ...
Meeting Document : WG-EMM-00/52 : Autor(es): D. Kang, Y. Lee, H.-C. Shin, W. Lee and S. Kim (Republic of Korea)
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RESULTS OF THE RESEARCH PROJECT TO DIGITIZE HISTORICAL SOVIET KRILL FISHING EXPEDITION DATA
Abstract: The research project to digitize former Soviet krill fishing research, exploratory and ... commercial expedition’s data has been realized in Ukraine at the Southern Research Institute of Marine ... Fisheries and Oceanography of the Ukraine State Fishery Committee and at the Taras Shevchenko National ... expeditions in Southern Ocean between the years of 1972-1991. The main purpose of these expeditions was to ...
Meeting Document : CCAMLR-XXVIII/BG/18 : Autor(es): Delegation of Ukraine
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Relationships between oceanographic environment and distribution of krill and baleen whales in the Ross Sea and adjacent waters, Antarctica in 2004/05
Abstract: We have surveyed the ecological interactions between the oceanography and biological ... ecosystem in the Ross Sea and its adjacent waters with a joint survey the R/V Kaiyo Maru and the Japanese ... Whale Research Program in the 2004/05 austral summer. We compared the relationship between the ... geographical distribution of the main biological prey and predator populations such as krill including other ...
Meeting Document : WG-EMM-08/31 : Autor(es): M. Naganobu, S. Nishiwaki, H. Yasuma, R. Matsukura, Y. Takao, K. Taki, T. Hayashi, Y. Watanabe, T. Yabuki, Y. Yoda, Y. Noiri, M. Kuga, K. Yoshikawa, N. Kokubun, H. Murase, K. Matsuoka, T. Iwami and K. Ito (Japan)
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Fish and squid in the diet of king penguin chicks, Aptenodytes patagonicus, during winter at sub-Antarctic Crozet Islands
Abstract: The diet of king penguins, Aptenodytes patagonicus, rearing chicks was studied during ... three consecutive austral winters (1990, 1991 and 1992) at Crozet Islands. The mean stomach content mass ... of the 47 samples was 503 g. Percentages of wet and reconstituted masses showed that both fishes (66 ... and 36%, respectively) and squid (34 and 64%) are important components of the winter diet. Juveniles ...
Meeting Document : WG-EMM-97/09 : Autor(es): Cherel, Y., Ridoux, V., Rodhouse, P.G.
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Analysis of the diet of Champsocephalus gunnari in Subarea 48.3, in late summer of years 1994–97, Dr E. Holmberg surveys
Abstract: The diet composition of mackerel icefish Champsocephalus gunnari caught in Subarea 48.3 ... ;Q" (%) methods. Krill (Euphausia superba) followed by the amphipod hyperiid Themisto ... gaudichaudii was the main food item around South Georgia and Shag Rocks in the period investigated, except in ... 1994, when the order of importance of these two organisms in the diet was inverted. The consumption of ...
Meeting Document : WG-FSA-97/48 : Autor(es): Barrera-Oro, E., Marschoff, E., Casaux, R.
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An underwater setting method for surface longliners, to minimise the accidental/incidental capture of seabirds
Abstract: The accidental/incidental capture of seabirds by longline gear may be causing a ... significant decline in the numbers of some species (most notably albatross Diomedea sp) in the Southern Oceans ... . In response to the sea bird problem, the New Zealand Department of Conservation funded a programme in ... are reported in this document. One with the tube opening facing forward was unsuccessful,in flushing ...
Meeting Document : WG-FSA-97/53 : Autor(es): Walshe, K.A.R., Parnes, P.
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Revised research plan for the exploratory longline fishery for Dissostichus spp. in 2012/13 Subarea 48.6 and Divisions 58.4.1, 58.4.2 and 58.4.3a (this is a revision of WG-SAM-12/09)
Abstract: The research fishing proposal for Dissostichus spp. in Subarea 48.6 and Divisions ... 58.4.1, 58.4.2 and 58.4.3a is resubmitted following paragraph 3.24 of WG-SAM-12. In the present proposal ... , we firstly showed information of catch, efforts, tagging experimental results based on the CCAMLR C2 ... data, and secondly showed the results of biological features with some discussion of life history in ...
Meeting Document : WG-FSA-12/60 Rev. 1 : Autor(es): Delegation of Japan