Resultados de la búsqueda
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VME Taxa Classification Guide
identification. This document may be cited as: CCAMLR VME Taxa Classification Guide. 4 pp. (2009) References ... cortex. Small specimens can be feathery-like hydroids or bushy- like black coral Entire organism small ... dense, dark brown or black skeleton, can be large (>2 m). Branch tips can look like hydroids or small ... spines, can scrape off surface. Bulbous ends with polyps Can be non-branching and whip-like. Usually ...
Document : Site Section: Publications
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Validation of sink rates of longlines measured using two different methods
, for measuring sink rates to shallow depths when instant readings were required. TDRs can be used to ... readings were required. TDRs can be used to measure sink rates to depths of more than 2 m down to the ... ed as a critical variable that could be controlled and measured. Faster sinking lines reduce the ... optimal performance, the TDR must be thermally stable, i.e. at the ambient sea tempera- ture prior to the ... because it can usually not be determined from the records. To achieve this, a crew member signalled the ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 179–187 : Autor(es): Wienecke, B. and G. Robertson
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Surface water circulation in krill fishing areas near the South Shetland Islands
to be most abundant. The buoys were tracked using the ARGOS satellite positioning system. Based on ... at a depth of 30 m to assess flow patterns at the depth range where krill tended to be most abundant ... considered to be a main current in Bransfield Strait, suggesting strong environmental factor affecting the ... little eddy activity and areas of high eddy activity and drifter retention would be extremely useful ... the depth range where krill tended to be most abundant (Anon., 1993). The buoys were tracked using ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 125–136 : Autor(es): Ichii, T. and M. Naganobu
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UPDATE OF THE INTEGRATED STOCK ASSESSMENT FOR THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS USING CATCH-AT-AGE DATA AND TWO YEARS OF SURVEY ABUNDANCE-AT-AGE DATA
ageing error. CASAL allows a single ageing error matrix to be defined and applies this matrix to ... with readability score of at least 4 can be obtained in sufficient numbers to allow ALKs to be ...
Meeting Document : WG-SAM-09/09 : Autor(es): S.G. Candy (Australia)
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Some thoughts on precautionary measures for the krill fishery
measures for a harvested resource is to ensure that harvesting is conducted at a level which can be ... better will be the scientific advice on which to base management decisions. One of the common ways of ... . However, a fishery could be allowed to exist only if there is enough information to ensure that the ... may have insufficient data, and yet we do not know how large a fishery ought to be permitted. It is ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 1–11 : Autor(es): Everson, I. and W.K. de la Mare
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Zonal structure of zooplankton communities in the Southern Ocean south of Australia: results from a 2150 km continuous plankton recorder transect
strongly correlated with frontal/oceanographic zones. These assemblages appeared to be structured by a ... zones can be subtle, the demarcation between zooplankton assemblages was clear. Cross-frontal changes in ...
Meeting Document : WS-BSO-07/P6 : Autor(es): Hunt, B.P.V. and G. Hosie
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Progress towards a trophic model of the ecosystem of the Ross Sea, Antarctica, for investigating effects of the Antarctic toothfish fishery
. antarcticus) are other key linking species. The trophic model presented here is not complete and should be ... predators (especially Weddell seal, type-C killer whale, sperm whale) cannot be tested reliably by the ...
Meeting Document : WG-EMM-06/14 : Autor(es): M. Pinkerton, S. Hanchet and J. Bradford-Grieve (New Zealand)
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Mercury concentrations in Patagonian toothfish, Dissostichus eleginoides Smitt 1898, among three distinct ocean basins
, halibut, cod, albacore tuna, and orange roughy. Explanation of these geographical differences in Hg may be ... yet to be adequately explored. Author(s): K. Dawson Guynn and M.S. Peterson (USA) Title: Mercury ...
Meeting Document : WG-FSA-06/24 : Autor(es): K. Dawson Guynn and M.S. Peterson (USA)
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Contrasting population changes in sympatric penguin species in association with climate warming
and linear. Chinstrap penguins, considered to be better adapted to ice-free conditions, were affected ... persistent sea ice reductions were likely to increase their available niche, which is likely to be ...
Meeting Document : WG-EMM-06/P3 : Autor(es): J. Forcada, P.N. Trathan, K. Reid, E.J. Murphy and J.P. Croxall (United Kingdom)
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Preliminary analyses of an ectoparasite Eubrachiella antarctica as a marker for stock discrimination of Antarctic toothfish in the Ross Sea
were significantly different between 88.1H and 88.2F. These area differences do not appear to be ... difference in prevalence and intensity of E. antarctica needs to be tested with large scale sampling in ...
Meeting Document : WG-FSA-06/28 : Autor(es): P.J. Smith, A. McKenzie and L. Tubbs (New Zealand)