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 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 : Auteur(s): 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 : Auteur(s): 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 : Auteur(s): 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 : Auteur(s): M. Naganobu, K. Kutsuwada, Y. Sasai and T. Taguchi (Japan) and V. Siegel (Germany)
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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 : Auteur(s): A.J. Constable
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Variations in food composition and feeding intensity of mackerel icefish (Champsocephalus gunnari) at South Georgia
) around Shag Rocks and the mainland of South Georgia was investigated in January/February 1985, January ... superba), the hyperiid Themisto gaudichaudii, mysids and in 1985 also Thysanoessa species. The proportion ... of krill and Themisto in the diet items varied considerably between the three seasons, whereas the ... proportion of mysids in the diet remained fairly constant. krill is obviously the prefered diet. In years of ...
Meeting Document : WG-FSA-92/26 : Auteur(s): K.-H. Kock (Germany), I. Everson (United Kingdom), S. Wilhelms (Germany), S. Campbell (United Kingdom), J. Szlakowski (Poland), G. Parkes (United Kingdom), Z. Cielniaszek (Poland) and C. Goss (United Kingdom)
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Reproduction in Antarctic notothenioid fish - a review
Abstract: Abstract: Gonad maturation in Antarctic notothenioid fish is a biennial process ... gunnari in the Atlantic Ocean sector do not spawn each year. Gonadosomatic index (GSI) of females is 15–40 ... –20% of that of females. Length at first spawning may be from 55% of Lmax onwards, but in many species ... Zone are autumn/winter spawners, whereas in the High-Antarctic Zone more species spawn in summer and ...
Meeting Document : SC-CAMLR-X/BG/12 : Auteur(s): Delegation of Germany
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Observations of penguins in the waters off South Orkney Islands, 2011–2013
Abstract: In this study, we introduce the initial results from three seasons (2011-2013) of ... penguin observations made in the waters off the South Orkney Islands. The surveys followed pre-determined ... penguins were observed and Chinstrap penguins (Pygoscelis antarctica) dominated in numbers during all three ... seasons, with Adélie (P. adeliae) and Gentoo penguins (P. papua) only present in modest numbers. The ...
Meeting Document : WG-EMM-13/35 : Auteur(s): B.A. Krafft, G. Skaret (Norway) and P. Trathan (United Kingdom)
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Progress towards an assessment of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 882C–H for the years 2002/03 to 2017/18 using a two-area model
Antarctic toothfish (Dissostichus mawsoni) in the Amundsen Sea region, defined here as SSRUs 88.2C–H. The ... were first developed for the region in 2014 and refined in 2015 and 2016. Results showed the need to ... collect mark-recapture data in the South to inform the estimation of biomass in the South. Simulation work ... undertaken in 2017 showed that if tag recaptures continued in the south, and were spread among research ...
Meeting Document : WG-FSA-18/37 : Auteur(s): S. Mormede and S. Parker
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REPORT ON TRANSHIPMENT OF KRILL IN 2009
Abstract: Report on transhipment of krill in 2009 Delegation of Japan Abstract: According to the ... in the CCAMLR Convention Area in 2009, as a background paper for CCAMLR annual meeting to be held in ... transshipments within the Convention Area”, especially in accordance with the paragraph 6 of the Measure, Japan ... submits the attached report on transshipment activities by its krill fishing vessel in CCAMLR Convention ...
Meeting Document : CCAMLR-XXIX/BG/05 : Auteur(s): Delegation of Japan