Resultados de la búsqueda
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Interactions between cetaceans and long-lining operations for Patagonian toothfish Dissostichus eleginoides around South Georgia
, sperm whales were snagged on the line but were freed. Interviews with fishermen indicated that ... interactions of killer whales and sperm whales with longlining operations may be common in the South Atlantic ... for interactions with sea mammals. Twenty-seven lines were observed and interactions recorded during ... fish/haul for all 27 lines. Sperm whales (Physeter macrocephalus) were also associated with hauling ...
Meeting Document : WG-IMALF-94/16 : Autor(es): J.R. Ashford (United Kingdom) and P.S. Rubilar (Chile)
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Proposal for a CCAMLR sponsored research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea
methodologies. Further, we propose that the first survey be a pilot, with two main objectives: (i) To ... work that could be undertaken to demonstrate the use of the results of such a survey in the provision ... , making it impossible to develop a consistent time series that would monitor trends in recruitment over ... time from the fishery. At its 2010 meeting, the Scientific Committee agreed that a time series of ...
Meeting Document : WG-SAM-11/16 : Autor(es): S.M. Hanchet, S. Mormede, S.J. Parker and A. Dunn (New Zealand)
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Growth and age/length structure of populations of Notothenia (Lepidonotothen) squamifrons (Nototheniidae) in various areas of the Indian sector of the Southern Ocean
paper. It was found that during the first years of life the linear growth rate is 3 to 5 cm per year. It ... earlier by Duhamel (1981), however it should be noted that Duhamel used total length (L) for calculating ... Kerguelen Island area (155 to 188 g/year). It must be noted that retardation of the weight growth rate on ... (Table 2). 126 When comparing the data obtained it can be seen that while the growth rate for all ... each of the areas studied over different years and to note changes that may be occurring. N ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 123–139 : Autor(es): Zaitsev, A.K.
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Incident of Antarctic krill (Euphausia superba) mass infection near the coasts of South Georgia Island (Subarea 48.3)
Abstract: In the north-eastern part of South Georgia Island shelf (Subarea 48.3) on 30 July 2001 ... by the disease that had not been described earlier. In the period of winter and spring some males and ...
Meeting Document : WG-EMM-02/13 : Autor(es): M.S. Savich (Ukraine)
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Report on marine debris collected at Cape Shirreff, Livingston Island, during the 1994/95 Antarctic season
, during the present survey a total of 2,744 articles with 237.7 kg were obtained, indicating that the ... litter at Cape Shirreff was carried out in 1993/94, with a total of 1,754 articles weighing 284.29 kg ... problem of marine debris continue. The plastic was the principal item with a 90.3%; followed by glass, 5.0 ... nests, meanwhile two adult females of Arctocephalus gazella were observed with collars; only one of them ...
Meeting Document : CCAMLR-XIV/BG/24 : Autor(es): Delegation of Chile
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A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2016 random stratified trawl survey
the population. These projections indicate that catches of 561 t in the 2016/17 season and 402 t in ...
Meeting Document : WG-FSA-16/26 : Autor(es): D. Maschette and D. Welsford
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Genetic analysis of Antarctic toothfish samples from the Southern Ocean to explore potential stock boundaries
58.4.2. D. mawsoni appeared to be characterized by low diversity; no genetic variation was detected with ... . It is recommended that the Ross Sea D. mawsoni be treated as a separate stock unit. Author(s): P.J ... out of seven introns digested with the restriction enzymes, but there was no population ... variation with some haplotypes restricted to sea areas. The weak genetic differentiation is supported by ...
Meeting Document : WG-FSA-04/32 : Autor(es): P.J. Smith, S.M. McVeagh (New Zealand) and P.M. Gaffney (USA)
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Some specific features of the USSR krill fishery and possibilities of applying fishery statistics to studies of krill biology and stocks
krill fishery, it is shown that the catch-per-haul variables are associated with the fishing regime of ... the vessel rather than with krill abundance in a certain area. During preparations for regular fishing ... operations very short hauls (under 15 minutes) are practised. Such fishing practice, together with ... -term behaviour patterns have an impact. All these factors limit the extent to which CPUE can be used in ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 237–252 : Autor(es): Dolzhenkov, V.N., T.G. Lubimova, R.R. Makarov, S.S. Parfenovich and V.A. Spiridonov
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Collection, processing and potential use of sonar data from krill fishing vessels
Antarctic krill distribution, and potentially abundance. Data from sonars can be used independently of ... ‘Saga Sea', routinely use sonars, and we provide example data and swarm descriptions from these ...
Meeting Document : SG-ASAM-14/01 : Autor(es): G. Skaret (Norway) and M.J. Cox (Australia)
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An initial analysis of the characteristics of Antarctic krill taken by the commercial fishery and Antarctic fur seals during the winters of 2002 and 2003 at South Georgia
observers that should be addressed prior to more detailed analysis, nevertheless there was considerable ... ensure that other sufficient time can be allocated to other activities, especially the assessment of by ... -frequency distribution of krill at South Georgia during the winter of 2002 and 2003 and compare these with ... during winter. It may be appropriate to review the number of krill measured by observers in order to ...
Meeting Document : WG-EMM-04/62 : Autor(es): K. Reid, D.J. Agnew, N.L. Warren and E. Owen (United Kingdom)