Resultados de la búsqueda
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Biological features of the icefish Champsocephalus gunnari from commercial catches in Subarea 48.3 during the period from 8 December 1999 until 31 January 2000
Abstract: In the period from 11 December 1999 to 31 January 2000 Russian trawler "Zakhar ... Sorokin" carried out fishing the icefish Champsocephalus gunnari feeding consent rations in the ... western shelf of the South Georgia Island. Icefish 26-40 cm in length, with the average size of 30.3 cm ... made up the bulk of the catches. Length-frequency distribution was characterized by bimodality, with ...
Meeting Document : WG-FSA-00/20 : Autor(es): V.L. Senioukov (Russia)
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Oceanic debris observations in the southern ocean whale sanctuary, from Antarctic Peninsula to the Ross Sea: December 1994 to March 1995
the Pacific section of the Southern Ocean Whale Sanctuary from December 1994 to March 1995 are ... reported. Natural megalitter, mostly seaweed, was concentrated In the more northern latitudes near the ... start and finish of the expedition, especially near the Antarctic Convergence south of the Tasman Sea ... . Man-made megalitter was nowhere common, but was seen mostly near and to the west of the Antarctic ...
Meeting Document : SC-CAMLR-XVI/BG/29 : Autor(es): ASOC Observer
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Distribution, biomass and abundance of Antarctic krill in the vicinity of Elephant Island during the 1996 austral summer
Abstract: Results from two acoustic and net surveys conducted in the vicinity of Elephant Island ... during the 1996 austral summer indicate very good krill recruitment from spawning in 1994/5. Areas of ... than 200m. One-year old juvenile krill numerically dominated catches during the first survey in January ... and were widely distributed throughout the southern portion of the survey area. Large, sexually mature ...
Meeting Document : WG-EMM-96/23 : Autor(es): Demer, D.A., Hewitt, R.P., Loeb, V.
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Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground
other model parameters in integrated assessments via CASAL for the Heard and McDonald Islands (HIMI ... . An alternative strategy was adopted whereby the catch-at-age and mark-recapture data were restricted ... to the main trawl ground in which the longest time series of catches and the great majority of ... years 1998 to 2008. A large proportion of the recaptures of fish released in this fishery were aged and ...
Meeting Document : WG-FSA-10/41 : Autor(es): S. Candy, D. Welsford, T. Lamb, J. Verdouw and J. Hutchins (Australia)
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Antarctic krill populations in the outflow region of the north-western Weddell Sea
Abstract: A meso-scale zooplankton and krill net sampling survey was carried out in the north ... March 2013. The aim of the survey was to study the zooplankton composition and krill abundance and ... distribution in the outflow region of the Weddell Sea. Due to severe pack-ice conditions, more than half of the ... survey area was covered by ice during the summer season. Antarctic krill densities were found to be ...
Meeting Document : WG-EMM-13/24 : Autor(es): V. Siegel (European Union)
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Investigation of potential biases in the assessment of Antarctic toothfish in the Ross Sea fishery using outputs from a spatially explicit operating model
-recapture data, and rely on the assumption that tagged and untagged fish have constant probabilities of ... recapture regardless of the spatial distribution of releases or subsequent fishing effort for recaptures ... . Conceptually this assumption implies either that tagged and untagged fish mix equally in the population, or ... that fishing effort for recaptures is distributed in proportion to the underlying abundance. Neither of ...
Meeting Document : WG-SAM-13/36 : Autor(es): S. Mormede and A. Dunn (New Zealand)
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Integrated stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery (Division 58.5.2)
eleginoides) at the Heard and the McDonald Islands (Division 58.5.2) with data until the start of August 2013 ... . Compared to the last assessment in 2011, this assessment updated the growth model and compared the effects ... stock assessment estimates and projected catch limits that satisfy the CCAMLR decision rules. Re ... -defining the fishery structure was based on a method by Candy et al. (2013) that suggested a simplification ...
Meeting Document : WG-FSA-13/24 : Autor(es): P. Ziegler, S. Candy and D. Welsford (Australia)
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2006–2013 fish distribution and biomass in the Kerguelen EEZ (CCAMLR DIVISION 58-5-1) for the bathymetric range 100–1 000 m
Abstract: Three fish biomass surveys have been recently undertaken in the northern part of the ... Kerguelen Plateau (POKER 1, 2006; POKER 2, 2010; POKER 3, 2013) with the chartered trawler FV “Austral ... ” repeating the same random and stratified sampling stations in the bathymetric range 100 – 1000 m. Data on ... the bathymetric and geographical fish distribution are available for 19 bottom-dwelling species (13 ...
Meeting Document : WG-FSA-14/07 : Autor(es): G. Duhamel, M. Hautecœur and R. Sinegre (France)
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Proposal to continue participation in the second year of the joint CCAMLR research survey to collect spatially stratified longline and bathymetric data in 88.2_A and 88.2_B in 2015/16
Abstract: Toothfish in SSRUs 882.A–B are currently managed as part of the Ross Sea region stock ... , but the stock structure and fish movement patterns are uncertain and more information is required for ... the management across all of the region. Recognising this requirement, the Scientific Committee ... endorsed two years of spatially stratified longline surveys in the northern region of SSRUs 88.2A–B (SC ...
Meeting Document : WG-SAM-15/32 : Autor(es): Delegation of the United Kingdom
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Conservation at CCAMLR: Understanding Article II of the Convention on the Conservation of Antarctic Marine Living Resources
Abstract: Article II has periodically been the subject of discussion in the Commission. As ... CCAMLR moves through its fourth decade of service as a vital part of the Antarctic Treaty system, the ... delegations of United States and Australia considered it was important to recall the development of the ... taking a close look at Article II of the Convention to see how the term is applied and to consider its ...
Meeting Document : CCAMLR-XXXV/BG/28 : Autor(es): Delegations of Australia and the USA