Resultados de la búsqueda
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Histopathology of Antarctic krill (Euphausia superba) bearing black spots
onboard a krill fishing vessel in the winter of 2003 and 2006 in the South Georgia region, the Antarctic ... Ocean, approximately 2-5% of sub-samples of 100 krill bore small black spots. The black spots were most ... often found on the cephalothorax of the body. Three bacteria were isolated from these black spots, and ... classified into either Psychrobacter or Pseudoalteromonas by the sequences of 16S rRNA genes. Histological ...
Meeting Document : WG-EMM-07/29 : Autor(es): S. Miwa, T. Kamaishi, T. Matsuyama, T. Hayashi and M. Naganobu (Japan)
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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 ... summarized briefly, and the central role played by krill emphasized. The background to the hypothesis of a ... that has become available since the postulate was first advanced is discussed. The objective of the ... ) species. The model commences in 1780 (the onset of fur seal harvests) and distinguishes the Atlantic ...
Meeting Document : WG-EMM-05/34 : Autor(es): M. Mori and D.S. Butterworth (South Africa)
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NPOA-Seabirds Science Advisory Group Final recommendations on fields of research for the NPOA Medium Term Research Plan 2006/07–2010/11
Abstract: Following the review by Alderman (unpublished) and Bull (unpublished) of research into ... seabird-fishery interactions, a set of recommendations were made by the Science Advisory Group to the ... National Plan of Action – Seabirds. The recommendations were developed under six main topic areas: a ... ) mitigation research; b) estimation of bycatch; c) population estimation and modelling; d) foraging ecology; e ...
Meeting Document : WG-FSA-05/46 : Autor(es): S. Waugh (Convener) (New Zealand)
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Evaluating methods to assess yield of Patagonian toothfish (Dissostichus eleginoides) in CCAMLR Division 58.5.2
Abstract: This paper describes aspects of the Management Strategy Evaluation (MSE) being ... currently being used for Patagonian toothfish in Division 58.5.2, the types of data and observations of the ... types of methods being used to assess yield of toothfish according to the CCAMLR decision rules. We ... summarise some preliminary results as well as the details of continuing work for assisting the special ...
Meeting Document : WG-FSA-05/69 : Autor(es): A.J. Constable, I. Ball, B. Raymond, S. Candy, R. Williams (Australia) and A. Dunn (New Zealand)
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Electronic monitoring of seabird interactions with trawl third-wire cables on trawl vessels – a pilot study
third-wire cables on trawl vessels. This pilot study involved field testing of EM systems on shoreside ... Economic Zone. EM systems, consisting of two closed circuit television cameras, GPS, hydraulic and winch ... one-month period in the fall of 2002. Detailed analysis of about 200 hours of fishing imagery occurred ... cables. The EM system provided imagery of sufficient quality to detect the presence, abundance, and ...
Meeting Document : WG-FSA-04/23 : Autor(es): H. McElderry, J. Schrader, D. McCullough, J. Illingworth, S. Fitzgerald and S. Davis (USA)
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Electronic monitoring of seabird interactions with trawl third-wire cables on trawl vessels – a pilot study
third-wire cables on trawl vessels. This pilot study involved field testing of EM systems on shoreside ... Economic Zone. EM systems, consisting of two closed circuit television cameras, GPS, hydraulic and winch ... one-month period in the fall of 2002. Detailed analysis of about 200 hours of fishing imagery occurred ... cables. The EM system provided imagery of sufficient quality to detect the presence, abundance, and ...
Meeting Document : WG-FSA-04/23text : Autor(es): H. McElderry, J. Schrader, D. McCullough, J. Illingworth, S. Fitzgerald and S. Davis (USA)
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Interannual variability of polynya extent in the Antarctic Ocean
Abstract: There are two general kinds of polynya (an ice-free area within sea ice borders ... processes by exposing the surface of ocean to the atmosphere. Additionally, we think that the coastal ... reports on the place, time and shape of the coastal polynyas. Accordingly, we pursued the transition of ... the coastal polynyas using satellite image data of sea ice concentrations by the NSIDC (National Snow ...
Meeting Document : WG-EMM-01/34 : Autor(es): M. Naganobu and K. Segawa (Japan)
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Trawl survey of the Patagonian toothfish (Dissostichus eleginoides) resource off the Prince Edward Islands
Abstract: A bottom trawl survey was conducted in the northern half of the South African EEZ ... around the Prince Edward Islands in April 2001. Due to the paucity of bathymetric data, it was not ... study to ascertain the feasibility of conducting future trawl surveys, and to collect relevant data to ... aid in the design of such surveys should they be deemed practical. The maximum operating depth for the ...
Meeting Document : WG-FSA-01/72 : Autor(es): R.W. Leslie and B.P. Watkins (South Africa)
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Fishing for toothfish using pots: results of trials undertaken around South Georgia, March–May 2000
Abstract: During the period March to May 2000, the UK undertook trials of a pot fishing method to ... trial, the results, and discusses the commercial viability of this fishing method for toothfish ... of crab species. The catch rate of toothfish was notably lower than that achieved in the longline ... fishery. Importantly, the use of pots eliminated bird bycatch. To capitalise on this feature, there is a ...
Meeting Document : WG-FSA-00/23 : Autor(es): D. Agnew, T. Daw, M. Purves and G. Pilling (United Kingdom)
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Catchability of midwater trawls in relation to krill fishery
estimation of total krill lengths distribution, obtained on the basis of trawl samples from different catched ... total distribution of krill length, obtained using weighting of trawl samples (usually 200 ind.) against ... the catch, may considerably differ (statistically significantly) from that calculated on the basis of ... trawling. The example of trawl samples processing for the study area off Elephant Island is presented ...
Meeting Document : WG-EMM-98/20 : Autor(es): S.M. Kasatkina (Russia)