Résultats de la recherche

1. Notes for identifying the three macrourid species, M. holotrachys, M. whitsoni and M. carinatus in CCAMLR Subarea 48.3

   Abstract:  Digital pictures and morphological measures are presented to aid CCAMLR observers with ... scaled). The relative positioning of the second dorsal fin and the anal fin can also be used to ... , combinations of 2 or more characters should be successful. Genetic analysis of liver samples will confirm ... species identification Author(s):  S.A. Morley, M. Belchier, M.G. Purves, T. Mulvey and J. Dickson (United ...

   Meeting Document : WG-FSA-02/29 : Auteur(s): S.A. Morley, M. Belchier, M.G. Purves, T. Mulvey and J. Dickson (United Kingdom)

2. The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species

   across a range of 'ecosystem' effects and, as formulated here, can also be related directly to ... fisheries impact incidentally on an ecosystem, (ii) what should be the conservation objectives for predators ... of fished species, and (iii) what approaches could be considered for achieving the conservation ... , theory tells us that predators of fished species would be competing with the fishery only if they are ... fished species? The advantage of such evaluations is that the initial management system can be built on ... met by fisheries. These points are illustrated using a simple simulation model that could be used as ... interactions between species. Species that directly interact with the target and by-catch species (hereafter ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 37–64 : Auteur(s): Constable, A.J

3. SC-CAMLR-39

   G. Watters SC-CAMLR-39/BG/12 The United Nations' Intergovernmental Panel on Climate Change&#039 ... Dissostichus mawsoni in Subarea 88.3, with notes on by-catch species S. Chung, B. Moore, I. Slypko, S.-G. Choi ... . Teschke, S. Hain, H. Pehlke, P. Brtnik, G. Griffith, A. Lowther and T. Brey SC-CAMLR-39/BG/14 Co-conveners ... /15 Co-conveners’ summary of WG-SAM-2020 e-group discussions WG-SAM Co-conveners (C. Péron and T ...

   Meeting

4. Krill population dynamics at South Georgia 1991–1997, based on data from predators and nets

   -group cohorts in the length-frequency distribution, we suggest that year's of high mean krill ... scientific nets from the same area over the summers of 1991-1997. In comparing the 5 years with both predator ... sampling the same overall krill population. Greatest similarity results from comparing net samples with ... and thereafter increased steadily to 1997. Using these data in conjunction with putative size/age ...

   Meeting Document : WS-AREA 48-98/15 : Auteur(s): K. Reid, J. Watkins, J. Croxall and E. Murphy (UK)

5. Intra-archipelago moult dispersion of southern elephant seals at the Prince Edward Islands, southern Indian Ocean

   Abstract:  During three summer surveys at Prince Edward Island (PEI), southern Indian Ocean (2001 ... all, 42 seals that had been tagged as weaned pups at their natal site were found on Marion Island (MI ... ), 38 of which could be individually identified by resighting their tag numbers. The majority of the MI ...

   Meeting Document : WG-EMM-10/P16 : Auteur(s): W.C. Oosthuizen, M.N. Bester, P.J.N. de Bruyn and G.J.G. Hofmeyr

6. Fishery Report 2018: Dissostichus eleginoides South Georgia (Subarea 48.3)

   (1 May to 31 August) to minimise interactions with foraging birds during their breeding season ... been assumed that are consistent with the values used in other toothfish assessments conducted by ... with the CCAMLR decision rule which requires the stock to be at 50% of B0 after 35 years, with a ... this report the CCAMLR fishing season is represented by the year in which that season ended, e.g. 2015 ...

   Document : Site Section: Publications

7. A study of Patagonian toothfish (Dissostichus eleginoides) post-tagging survivorship in Subarea 48.3

   . Toothfish were kept in tanks with seawater replacement for at least 12 hours after tagging. On one vessel ... , fish with a variety of injuries were selected to see if this affected recovery. In the final analysis ... , 396 animals were included, with an overall survivorship of 90%. Smaller animals and animals in better ... suggest that experienced observers using animals in good condition would normally achieve a toothfish post ... observer had only chosen fish that were judged to be in good or average condi- tion and otherwise suitable ... that had been tagged and released in earlier years, or were assumed to be fish that had fallen off the ... on survivorship was most significant for fish greater than 90 cm, with a suggestion that ... information from observers, who report that large fish are difficult to tag. However, it also might be an ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 279–289 : Auteur(s): Agnew, D.J., J. Moir Clark, P.A. McCarthy, M. Unwin, M. Ward, L. Jones, G. Breedt, S. Du Plessis, J. Van Heerdon and G. Moreno

8. Potential nursery areas for fish in the Prydz Bay region

   survey with a fine-meshed midwater trawl in Prydz Bay in January/February 1991 indicated the potential ... for the shelf area of the Bay to be a nursery ground for nototheniid and channichthyid fish. Nearly ... area could be considered a nursery area. File:  22-Williams.pdf ... alone will be analysed. Pleuragramma antarcticum constituted the great majority of the catch, with ... that nearly all juvenile fish caught in the Prydz Bay region are associated with the continental shelf ... the shelf break area, and while channichthyid catches are much lower, it should be remembered that ... PRYDZ BAY REGION R. Williams* * Abstract A survey with a fine-meshed midwater trawl in Prydz Bay ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 369–380 : Auteur(s): Williams, R.

9. Protocols for trawl sampling, recording of biological data, and hydrography for the 2019 International synoptic krill survey in Area 48

   surveys that have been conducted within the region of CCAMLR Area 48. Author(s):  T. Knutsen, B. Krafft, A ... the CCAMLR 2000 Survey has demonstrated that standardization of equipment and methods is one of the ... order for participants that carry out the upcoming International Krill Synoptic Survey 2019 to collect ... database of comparable quality with data obtained through the CCAMLR 2000 Survey and other more recent ...

   Meeting Document : WG-EMM-18/23 : Auteur(s): T. Knutsen, B. Krafft, A. Renner, G. Skaret, G.J. Macaulay and O.A. Bergstad

10. Sea Ice Biota: Trophic modelling of the Ross Sea

    range of variability that may be present in sea ice algal biomass. The fitted curve (Figure 1a ... our peak may be a little late. We note that this regression gives a phase in the algal biomass ... that biomass and productivity will be highly correlated, which has implications for estimating ... that sea ice primary production is greatest in November with about 60% occurring in November and ...

    Document : Site Section: Publications

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