Resultados de la búsqueda
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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: 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 ... 48.4; A total of 186 D. eleginoides and 202 D. mawsoni were tagged and released in 2010, leaving a ... total of 794 tagged fish in the water, respectively. A total of 13 D. eleginoides and 22 D. mawsoni were ...
Meeting Document : WG-FSA-10/40 : Autor(es): J. Roberts and D. Agnew (UK)
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Descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 & 88.2 for the years 2000–01 to 2014–15
Abstract: We provide an update of the descriptive analyses of the toothfish tagging programme in ... and 2473 recaptured, and 1191 Patagonian toothfish released and 103 recaptured since 2001. In recent ... catch in the Ross Sea region. Tag recapture data showed that most fish are recaptured only a short ... . The 308 recaptures in the Ross Sea region in 2014 was the highest observed, which then reduced to 183 ...
Meeting Document : WG-FSA-15/37 : Autor(es): S.J. Parker and S. Mormede (New Zealand)
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Characterisation of the toothfish fishery in the Ross Sea region (Subarea 88.1 and SSRUs 88.2A–B) through 2018/19
Abstract: This report summarises fishing catch and effort in the Ross Sea region (Subarea 88.1 ... the 2019 season. The implementation of the Ross Sea Region Marine Protected area in December of 2017 ... distributions showed no trends in the different management areas; interannual variability is likely driven by ... spatial patterns in fishing. The strongest time trend in the data is the change in the sex ratio over time ...
Meeting Document : WG-FSA-2019/07 : Autor(es): J. Devine, S. Parker and A. Dunn
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Entanglement of Antarctic fur seals (Arctocephalus gazella) in man made debris at Bird Island, South Georgia, during the 2006 winter and 2006/07 breeding season
total of 41 winter entanglements were observed in the reporting period compared to 2 observed in the ... previous winter. This is the second highest winter total since records began in 1990 (the highest was in ... loop of rope similar to that shown in appendix three. Plastic packaging bands were the second most ... ) were involved in 56% of all entanglements in winter and 53% in the summer. Overall females made up the ...
Meeting Document : SC-CAMLR-XXVI/BG/17 : Autor(es): Delegation of the United Kingdom
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Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Bird Island, South Georgia, during the 2003 winter and 2003/04 breeding season
Abstract: In the fourteenth consecutive winter of the survey at Bird Island, South Georgia, the ... classified as severe (71%). In contrast the sixteenth consecutive summer of reporting saw a decrease of 45 ... made in 1989. Severe injuries accounted for only a single entanglement during the summer. As in ... previous years, most individuals observed entangled in debris were juveniles (79% of winter and 55% of ...
Meeting Document : SC-CAMLR-XXIII/BG/14 : Autor(es): Delegation of the United Kingdom
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Preliminary analyses in support of the CEMP Review Workshop: serial correlations
Abstract: As part of the preliminary analyses undertaken in preparation for the CEMP Review ... Workshop, the Secretariat has documented serial correlation in time series of CEMP indices. The values ... input to the serial correlation analysis were the ‘transformed’ annual index values reported in WG-EMM ... -03/24. Serial correlation in biological indices occurred in 4, 10 and 33 % of the time series at ...
Meeting Document : WG-EMM-03/27 : Autor(es): Secretariat
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Shedding new light on the life cycle of mackerel icefish in the Southern Ocean
Abstract: Mackerel icefish (Champsocephalus gunnari) has a widespread distribution in the ... considerably between populations in the southern Scotia Arc and those living further to the north. Fish living ... in the north mature one year earlier than in the south. They have a much shorter life span and die ... in the north. Stocks have declined in most parts of the distributional range due to the impact of ...
Meeting Document : WG-EMM-03/4 : Autor(es): K.-H. Kock (Germany) and I. Everson (United Kingdom)
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Relationship between Antarctic krill (Euphausia superba) variability and westerly fluctuations and ozone depletion in the Antarctic Peninsula area
Abstract: An assessment of the environmental processes influencing variability in the recruitment ... and density of Antarctic krill (Euphausia superba) is important, as variability in krill stocks ... affects the Antarctic marine ecosystem as a whole. We have assessed variability in krill recruitment and ... . We found a significant positive correlation between krill recruitment in the Antarctic Peninsula area ...
Meeting Document : WG-EMM-99/52 : Autor(es): M. Naganobu, K. Kutsuwada, Y. Sasai and T. Taguchi (Japan) and V. Siegel (Germany)
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Krill distribution in the western Atlantic sector of the Southern Ocean during 1983/84, 1984/85 and 1987/88 on the basis of the Soviet mesoscale surveys with Isaacs Kidd midwater trawl
Abstract: In the paper the results of the investigations on three mesoscale surveys covering wide ... from 158 to 202 stations were carried out by Soviet research vessels in summer-autumn periods of 1983 ... /84 and 1987/88 and in a spring period 1984/85 by a standard grid of stations according to the ... standard method by Isaacs Kidd Midwater Trawl in the layer 0-100 m. Krill biomass distribution (g/1000 m3 ...
Meeting Document : WG-EMM-98/32 : Autor(es): V.A. Sushin and K.E. Shulgovsky (Russia)
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SOUTHERN OCEAN SENTINEL: REPORT OF THE FIRST INTERNATIONAL WORKSHOP IN 2009
held at the CCAMLR Headquarters in Hobart in April 2009. The conclusions of that workshop are provided ... presentations. A report of the workshop will be submitted to the Scientific Committee for its considerations in ... . This process will fill an important gap in current discussions on climate change impacts on marine ... ecosystems by the Intergovernmental Panel on Climate Change. It will also assist CCAMLR in addressing climate ...
Meeting Document : WG-EMM-09/37 : Autor(es): A.J. Constable