Resultados de la búsqueda
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New corrections factors for the quantification of fish represented in pellets of the blue-eyed shag Phalacrocorax atriceps
necessary for the quantification of fish represented in pellets. These factors were obtained for Notothenia ... , Notolepis coatsi and Electrona antarctica were represented in pellets but not found in the stomach contents ... . Fish were the main prey and N. coriiceps and H. antarcticus were the dominant species both in mass and ... number. Observations on behaviour showed that the daily foraging trips per bird increased in number but ...
Meeting Document : WG-EMM-95/83 : Autor(es): Silva, P., Casaux, R., Favero, M., Barrera-Oro, E.
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Fishing and conservation in southern waters
Abstract: Fishing in the Southern Ocean commenced on finfish in 1969/70 and on krill in 1972/73 ... the by-catch of juvenile fish in the krill fishery, to incidental mortality of birds during longline ... operations and the entanglement of seals in fragments of discarded or lost fishing gear. Most fish stocks had ... (CCAMLR) came into force in 1982. Stringent conservation measures to halt the further decline of the ...
Meeting Document : SC-CAMLR-XII/BG/11 : Autor(es): Delegation of Germany
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Preliminary model of krill fishery behaviour in Subarea 48.1
fishery in Subarea 48.1 and estimates the effort applied and the catch of krill in fine-scale squares ... March, compare favourably with the general distribution of catches in Subarea 48.1. A number of ... the management option of closing the zones around Livingston and Elephant Islands in alternate years ... would result in an average yearly catch similar to that at present, although the catch is much more ...
Meeting Document : WG-KRILL-93/14 : Autor(es): D.J. Agnew (Secretariat)
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Variation in reproductive performance of seabirds and seals at South Georgia, 1976–1986 and its implications for southern ocean monitoring studies
Orkney Islands) are summarised and reviewed. Breeding success of the Wandering Albatross, which breeds in ... significantly. The other species at South Georgia, which breed in summer and for which krill forms a significant ... proportion of their diet, have shown major fluctuations in some or all of: breeding population size, breeding ... particularly poor reproductive performance by almost all species. Difficulties in provisioning offspring were ...
Meeting Document : SC-CAMLR-VI/BG/15 : Autor(es): J.P. Croxall, T.S. McCann, P.A. Prince and P. Rothery (United Kingdom)
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The Antarctic toothfish Dissostichus mawsoni (Nototeniidae) nutrition in the Ross Sea during the fishing season 2011/12
Abstract: During fishing trip of F/V «Jung Woo 3» (Republic of Korea) in the Ross Sea over 29 ... species were found in the stomachs of the Antarctic toothfish. The main forage organisms for the toothfish ... dominant in the toothfish nutrition at SSRU “J” at the shelf in the vicinity of the Ross Ice Shelf. In that ... area the shrimp Notocrangon antarcticus played an important role in the toothfish nutrition ...
Meeting Document : WG-FSA-12/06 : Autor(es): Yu.V. Korzun and N.A. Misar (Ukraine)
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Towards the development of a stock assessment for Patagonian toothfish in Division 58.4.4, SSRU C on Ob and Lena Banks
Abstract: Following the advice from the CCAMLR Working Group in WG-SAM in 2012, a preliminary ... assessment of stock status of D. eleginoides in SSRU C in Ob-Lena Banks was made using a CASAL catch-at ... -length model. In this preliminary assessment, the model was started in 1990 and catch, proportions at ... length in the catch, and recapture data from SSRU C from 2007/08 to 2011/12 were fitted in the model. The ...
Meeting Document : WG-FSA-12/59 : Autor(es): K. Taki (Japan)
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Revised stock assessment of the Patagonian toothfish, Dissostichus eleginoides, in research block C of Division 58.4.4 (Ob & Lena Banks) using CASAL
fishing, CCAMLR decided to close the fishery in 2002 in division 58.4.4. Since 2008 only one vessel ... , Shinsei maru No. 3, has conducted research fishing in accordance with a research plan submitted under CM ... 24-01. France notifies its wish to collaborate in this research fishery over the coming years in ... order to participate in the tagging program and achieve a robust stock assessment. A preliminary ...
Meeting Document : WG-FSA-14/06 : Autor(es): A. Rélot-Stirnemann (France)
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A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2014 random stratified trawl survey
Abstract: The annual Random Stratified Trawl Survey was undertaken in Division 58.5.2 in the ... standard CCAMLR methods. A pattern of multiple year classes being present simultaneously in the population ... , which was first detected in 2011, has persisted. The large cohort observed in recent surveys was still ... projected. These projections indicate that catches of 309t in the 2014/15 season and 275t in the 2015/16 ...
Meeting Document : WG-FSA-14/44 : Autor(es): D.C. Welsford (Australia)
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Quantifying the impacts of ice on demersal longlining; a case study in CCAMLR Subarea 88.1
Abstract: The effect of sea ice is acknowledged as a major influence on fishing operations in ... high latitudes but not widely understood in detail other than by fishers and specialists in Antarctic ... fisheries research and management. Using the toothfish fishery in CCAMLR Subarea 88.1 as a case study we ... provide a method to quantify the effect of sea-ice on fishing. We discuss the ways in which ice effects ...
Meeting Document : WG-FSA-14/55 Rev. 1 : Autor(es): J.M. Fenaughty and S.J. Parker (New Zealand)
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Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.3a
began in 2013 in data-poor fisheries. In the present report, catch, effort and biological data recorded ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ... . Based on the result, the next three-season (2016-18) research plan in Division 58.4.3a is also presented ... spp. population(s) in data- poor exploratory fisheries. During the second three-season research, we ...
Meeting Document : WG-SAM-15/03 : Autor(es): Delegation of Japan