Résultats de la recherche
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Benthos: Trophic modelling of the Ross Sea
Description / Abstract: A supporting document to the CCAMLR Science paper: M.H. Pinkerton, J.M ... . Bradford-Grieve and S.M. Hanchet. 2010. A balanced model of the food web of the Ross Sea, Antarctica ... megafauna have been conducted in the McMurdo Sound and Terra Nova Bay regions (Dayton et al. 1969, 1970 ... Terra Nova Bay, with densities up to 59 ind m-2 (25 average). The study showed that the bivalve ... ) along the coast from Cape Adare and Terra Nova Bay, out to 500 m depth; and (2) in the Ross Sea from ... Hydroid may consequently be underestimated on the slope and deep water. No area coverage measurements of ...
Document : Site Section: Publications
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An iterative model to construct an age/length key to assess the age composition of a new fishery for Dissostichus eleginoides in Chilean waters
Paper Title: An iterative model to construct an age/length key to assess the age composition of a ... sampled from the same population. If such sampling is not possible the estimates of the age distribution ... could be biased. By using an iteration algorithm it is possible to overcome this limitation. The age ... composition of catch for Dissostichus eleginoides was obtained with the application of a single age/length key ... sampled from the same population. If such sampling is not possible the estimates of the age distribution ... could be biased. By using an iteration algorithm it is possible to overcome this limitation. The age ... composition of catch for Dissostichus eZeginoides was obtained with the application of a single age/length ... key to the monthly length distribution using the non-linear model (Hoenig and Heisey, 1987). We found ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 11–20 : Auteur(s): Robotham, V. H. and Z. Young U.
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Status of the coastal stocks of Dissostichus spp. in East Antarctica (Divisions 58.4.1 and 58.4.2)
between them being at about 90°E. The western stock may be centred around Prydz Bay, and appears to be of ... Paper Title: Status of the coastal stocks of Dissostichus spp. in East Antarctica (Divisions ... operating off the coast of East Antarctica (30°E–150°E; FAO/CCAMLR Divisions 58.4.1 and 58.4.2) since 2003 ... . An experiment run from 2005 to 2008 required the tagging of toothfish as a prerequisite for ... mouth of Prydz Bay (SSRU 5842E). Although there has been no fishing in SSRU 5841B, the area ... side of SSRU 5841C, the north- ern part of SSRU 5841E and the western part of SSRU 5841G. No D ... very low. Densities increase to the east of Division 58.4.2, particularly in SSRU 5842E off Prydz Bay ... Current (ACC) at this point, away from its close continental position to the north of Prydz Bay and from ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 71–100 : Auteur(s): Agnew, D.J., C. Edwards, R. Hillary, R. Mitchell and L.J. López Abellán
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Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons
their release sites. Density estimates from the mark-recapture data were in the order of 50 000 to 100 ... Paper Title: Preliminary analyses of data collected during experimental phases of the 1994/95 and ... 1995/96 Antarctic crab fishing seasons Abstract / Description: Data collected on board the FV American ... Champion during Phases 1 and 2 of the experimental crab fishery were analysed using generalised additive ... Phase 3 of the EHR, so there are no results presented for this phase. The American Champion used ... movement of crabs away from their release sites. Density estimates from the mark-recapture data were in ... to 100 crabs, and the release sites were distributed throughout each of the three depletion squares ... distances between release and recapture sites, and the crabs may not have travelled in a linear fashion ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 141–159 : Auteur(s): Watters, G
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Identifying taxonomic groups vulnerable to bottom longline fishing gear in the Ross Sea region
Paper Title: Identifying taxonomic groups vulnerable to bottom longline fishing gear in the Ross ... vulnerable marine ecosystems (VMEs) requires a specific list of the taxa that are considered vulnerable in ... the fishery being assessed. New Zealand identified an interim list of taxa to monitor in fishery by ... -catch in the Ross Sea as part of its benthic fisheries impact assessment. The rationale for including or ... been identified to genus level. Although no data on the longevity of antipathar- ians in the Southern ... fishery depths, but no soft corals have been observed deeper than 2 000 m. Some of the deep-sea species ... Balleny Islands and northern area seamounts. No samples have been collected from the eastern Ross Sea ... IDENTIFYING TAXONOMIC GROUPS VULNERABLE TO BOTTOM LONGLINE FISHING GEAR IN THE ROSS SEA REGION S.J. Parker ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 105–127 : Auteur(s): Parker, S.J. and D.A. Bowden
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Connectivity and population structure in Pleuragramma antarcticum along the west Antarctic Peninsula
Marguerite Bay, with no mixing between. The presence of a single length mode at Charcot Island and Marguerite ... Bay corresponding to the year class found during GLOBEC 2001 suggested a dominant cohort and no local ... , discrete populations along the Western Antarctic Peninsula (WAP), or whether the shelf circulation leads to ... , reduction in sea-ice along the WAP may lead to extinction of local populations through drastic mortality of ...
Meeting Document : WG-FSA-10/16 : Auteur(s): J. Ashford, J. Ferguson, A. Piñones, J. Torres and W. Fraser
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Evidence of Vulnerable Marine Ecosystems documented via submarine in the Antarctic Sound and Gerlache Strait (Subarea 48.1)
cold-water coral taxa not observed at the sites that were triggered as vulnerable by a high abundance ... Abstract: In order to adequately achieve CCAMLR’s conservation objectives and preserve the ... biodiversity of the Southern Ocean, a variety of ecosystems must be protected. This holds especially true for ... the benthic communities of this region that are characteristically mosaic in their distributions. As ...
Meeting Document : WG-EMM-18/35 : Auteur(s): S. Lockhart and J. Hocevar
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Some thoughts on precautionary measures for the krill fishery
Paper Title: Some thoughts on precautionary measures for the krill fishery Abstract / Description ... : The concept of precautionary measures for krill is discussed. A precautionary catch limit, based on ... the potential yield model developed by the CCAMLR Scientific Committee's Working Group on Krill ... precautionary catch limit in large areas, such as Statistical Area 48, but the approach requires considerable ... from a key foraging site or else during the most sensitive period of the year. This criticism could ... precautionary catch limit, i t would require monitoring of the fishing fleet to ensure that there is no ... size is derived from field counts which, since the locations of these sites are known, can be ... some sites, such as South Georgia; and (iv) fine-scale catch and effort data from the krill fishery ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 1–11 : Auteur(s): Everson, I. and W.K. de la Mare
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An overview of Southern Ocean zooplankton data: abundance, biomass, feeding and functional relationships (submitted to the 2008 Joint CCAMLR-IWC Workshop)
the north and south. Those compiling data on numerical density (no. m –2 or no. m –3) need to allow ... functional relationships (submitted to the 2008 Joint CCAMLR-IWC Workshop) Abstract / Description: There is ... overview is provided of the diversity and basic biology of SO zooplankton, with an emphasis on abundance ... , distribution and feeding. Second, advice is provided on the uses, strengths and limitations of zooplankton data ... mesozooplankton abundance at a coastal site in the Ross Sea (Foster, 1989; Knox et al., 1996). Macro ... the most commonly used zoo- plankton sampler, but no single net type or mesh size is suitable to ... zooplank- ton in the literature or in databases might include numerical densities (no. ind. m–2) but often ... Email – aat@pml.ac.uk *New address: Plymouth Marine Laboratory Prospect Place, The Hoe Plymouth PL1 ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 171–218 : Auteur(s): A. Atkinson, P. Ward, B.P.V. Hunt, E.A. Pakhomov and G.W. Hosie
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Report on the CCAMLR Marine Debris monitoring program: 2018 update
predominantly packaging items and plastics. There is no evidence of an increase in debris at monitored sites ... Abstract: Data from South Africa, the United Kingdom, the United States and France were received ... for the 2018 marine debris monitoring season. Debris items collected during beach surveys remain ... , but it remains ubiquitous in the CCAMLR area. Due to the limited scope of submitted data, as well as ...
Meeting Document : WG-FSA-18/18 : Auteur(s): CCAMLR Secretariat