Resultados de la búsqueda
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Reproduction in the Antarctic icefish Champsocephalus gunnari and its implications for fisheries management in the Atlantic sector of the Southern Ocean
Abstract: Available information on key reproductive parameters of Champsocephalus gunnari has ... been reviewed and discussed in the light of existing conservation measures. Length at first spawning is ... the other South Atlantic fishing grounds. Spawning activities of Champsocephalus gunnari and those of ... other exploited species could be best protected by the establishment of permanent closed fishing season ...
Meeting Document : SC-CAMLR-VIII/BG/16 : Autor(es): Delegation of Federal Republic of Germany
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Spatial distribution of Champsocephalus gunnari size and age are related with depth
Abstract: The results of four fish surveys (EDUARDO L HOLMBERG 1994 to 1997) are analyzed to ... detect associations between the sizes of Champsocephalus gunnari (also age classes), Gobionotothen ... eleginoides and depth of catch, as well as among C. gunnari age classes. Except D. eleginoides median sizes of ... all species resulted significantly associated with depth, positively in the case of C. gunnari and N ...
Meeting Document : WG-FSA-97/45 : Autor(es): Marschoff, E.R., Serra, J.A., Gonzalez, B., Calcagno, J.
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Quantitative stock survey and some biological and morphometric characteristics of the deep-sea red crab Geryon quinquedens off south west Africa
Abstract: In order to assess the abundance of the red crab Geryon quinquedens, two otter-trawl ... bimodal frequency distribution of female crabs was evident with modal sizes at 7.7 cm and 8.7 cm carapace ... processing the live material to a cooked frozen product, red crab is subject to a mass loss of about 54 per ... cent. Analysis of stomach contents by volume showed that only 12 per cent of male stomachs contained 5 ...
Meeting Document : WS-CRAB-93/22 : Autor(es): C.J. De B. Beyers and C.G. Wilke (South Africa)
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Tooth growth in male Antarctic fur seals (Arctocephalus gazella) from South Georgia: an indicator of long-term growth history
Abstract: Growth of upper canine teeth of male Antarctic fur seals (Arctocephalus gazella) which ... died of natural causes at Bird Island. South Georgia, was quantified from measurements of annual layers ... in longitudinal sections of teeth. Mean age at death was 7∙69 ± 0∙07 years and this showed a small ... significant correlations between morphometrics of teeth and those of seals, suggesting that tooth growth ...
Meeting Document : WG-CEMP-93/11 : Autor(es): I.L. Boyd and J.P. Roberts (United Kingdom)
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The state of exploited fish stocks in the Southern Ocean - a review
until the season 1989/90. About two thirds of the catches have been taken in the Atlantic Ocean sector ... Indian Ocean sector. The fishery is regulated under the auspices of the Convention on the ‘Conservation ... of Antarctic Marine Living Resources’ (CCAMLR) for rile whole Southern Ocean since 1982 and under ... most heavily affected by fishing are those of Notothenia rossii in both sectors, Notothenia squamifrons ...
Meeting Document : SC-CAMLR-X/BG/13 : Autor(es): Delegation of Germany
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Quantitative assessment of benthic fauna and assemblages in the Heard Island and McDonald Islands region
quantitative insight into the distribution, abundance and species composition of macrobenthic invertebrate ... communities in the region. The areas sampled were selected for the purpose of comparing and reporting regional ... differences in faunal composition and consist of a number of seamounts and submarine plateaus. The ... macrobenthic invertebrate fauna of the region is moderate in diversity and, while many taxa are endemic, is ...
Meeting Document : WG-EMM-10/25 : Autor(es): T. Hibberd, D.C. Welsford, A.J. Constable, K. Moore and S. Doust (Australia)
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Finfish research proposals for Subarea 48.6 by Koryo Maru 11 for 2012/13 (this is a revision of WG-SAM-12/12)
limited to Statistical Subarea 48.6. Preliminary assessments of Dissostichus spp. stocks in Subarea 48.6 ... north of 60°S (SSRUs 48.6A and 48.6G) and south of 60°S (SSRUs 48.6B, 48.6C, 48.6D and 48.6E) were ... analysis. The preliminary assessment indicates that the historic precautionary maximum catch limit of 200 ... tonnes of Dissostichus spp. for Subarea 48.6 north of 60°S is sustainable and precautionary, and suggests ...
Meeting Document : WG-FSA-12/30 : Autor(es): C. Heiniken and R. Ball (South Africa)
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A revised assessment of Patagonian toothfish in Subarea 48.4
existing area based, species combined approach. This paper describes the revised assessment of D ... Abstract: The stocks of toothfish in Subarea 48.4 are currently divided, for assessment purposes ... , into northern and southern components. The northern component is assessed as a single species of D ... . eleginoides whilst the southern component is assessed as a combination of D. eleginoides and D. mawsoni. Both ...
Meeting Document : WG-SAM-13/24 : Autor(es): R. Scott (United Kingdom)
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Southern Ocean Network of Acoustics (SONA)
Abstract: Southern ocean processes are intimately linked to some of the most pressing challenges ... faced by society today: climate change, ocean acidification and the sustainable management of marine ... resources. To address these challenges we need to improve our understanding of the natural causes and ... consequences of Southern Ocean change. Sustained observations, which can only be large enough and maintained ...
Meeting Document : WG-EMM-13/17 Rev. 1 : Autor(es): S. Fielding (United Kingdom), E. Josse (France), R. Kloser (Australia), R. O’Driscoll (New Zealand), C. Reiss (USA) and G. Skaret (Norway)
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A method to evaluate selection of Antarctic krill in towed fishing gears
) apply different trawl designs. Very little information exists on the size selectivity of E. superba ... . Size selectivity describes a given trawls designs ability to catch different sizes of a population and ... is valuable information for the management of harvested marine stocks. Size selectivity data is ... the time. FISHSELECT is developed as an alternative method, and is based on thorough measurements of ...
Meeting Document : WG-EMM-13/34 : Autor(es): L.A. Krag, B. Herrmann (Denmark), S. Iversen, A. Engås, S. Nordrum and B.A. Krafft (Norway)