Résultats de la recherche

1. Interannual variability in Antarctic krill (Euphausia superba) density at South Georgia, Southern Ocean: 1997 – 2013

   . Hence, only the densest krill swarms detected in any one year drove the mean krill density estimates for ... the WCB in that year. WCB krill density (µ, mean density for the area) showed several years (1997-8 ... , 2001-2003, 2005-2007) of high values (µ > 30 g m-2) interspersed with years (1999-2000, 2004, 2009 ... estimates for a 17 year time series of acoustic surveys of the Western Core Box at South Georgia.  Krill ...

   Meeting Document : WG-EMM-14/P04 : Auteur(s): S. Fielding, J. Watkins, P. Trathan et al.

2. Temporal changes in sighting density indices of baleen whales in CCAMLR Subareas 48.1 and 48.2 based on three circumpolar sighting surveys

   . CPI, CPII and CPIII data in Subarea 48.1 corresponded to years 1982/83, 1989/90 and 1993/94+1999/00 ... are consistent with abundance estimates trend in humpback and Antarctic minke whales. Two issues are ... , respectively while that in Subarea 48.2 those corresponded to years 1981/82, 1986/87 and 1997/98, respectively ... whales in the krill fishing/top predators feeding areas, and the impact on land-based predators. Author(s ...

   Meeting Document : WG-EMM-16/26 : Auteur(s): L.A. Pastene and T. Hakamada

3. Report on Bottom Fisheries and Vulnerable Marine Ecosystems

   ....................................................................................... 20 (ii) ATTACHMENT A: Glossary of terms, definitions and concepts ......................... 46 ... , adopting a measure to control bottom trawling in high-seas areas (CM 21-05). In that same year, the ... in the Convention Area, including two annexes CM 22-07 (2009) – Interim measure for bottom fishing ... present on the register and their status 10. Thirty-two encounters with VMEs have been notified in ...

   Document : Site Section: Publications

4. Criteria for aging the otoliths of Dissostichus eleginoides from South Georgia (Subarea 48.3) and an analysis of aging precision

   readings by one observer and readings by two observers showed considerable inconsistency in aging both ... criteria to test. Two sets of criteria ate presented for aging the otoliths of Dissostichus eleginoides ... , one (C1) developed from previous work on the same species; the other (C2) adapted from generalized ... criteria used to age high latitude fish from the north-west Pacific Ocean. Growth structures were found to ...

   Meeting Document : WG-FSA-98/52 : Auteur(s): J. Ashford (United Kingdom) and S. Wischniowski (Canada)

5. Skate tagging in the Heard Island and McDonald Island (Division 58.5.2) toothfish fishery up to 2013

   liberty of nearly eight years for one B. irrasa. Range of movement in depth was between-266 m and 280 m ... recapture rate of less than one percent. The average distance between release and recapture for each of the ... from release to recapture, with B. irrasa tending to move in depth more than the other two species ... . Growth increments for tagged and recaptured B. eatonii indicated growth of ~20mm/year for both sexes ...

   Meeting Document : WG-FSA-13/22 : Auteur(s): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)

6. Fishery Report: Dissostichus eleginoides Kerguelen Islands (Division 58.5.1)

   report is the CCAMLR season (1 December to 30 November of the following year). 60°E 65°E 70°E 75°E 80 ... the year. 1 Although the fishing season defined by ... France in its EEZ extends from 1 September to 31 August of the following year, the season used in this ... /88 0 892 892 0 892 1988/89 0 1 311 1 311 0 1 311 1999/90 0 1 243 1 243 0 1 243 1990/91 26 2 982 ...

   Document : Site Section: Publications

7. e-cc-xxii.pdf

   ... 20 000. 2.9 During the year, the Commission and the Scientific Committee had been represented by ... problems of recent years. 2.4 Two Scientific Committee working group meetings, along with associated ... SCAF 3.38 The Commission noted that Germany had been elected Chair of SCAF for the next two years ... Crab Resources................................................................................ 20 application/pdf attached to:CCAMLR-XXII

   Meeting Report : CCAMLR-XXII

8. Phytoplankton standing stocks in relation to krill in Antarctic waters

   lies between latitude 56° to 61° 17's and longitude 30° to 40°E is characterized by cold surface ... , consisting of 32 diatoms and one dinoflagellete. Chaetoceros and Nitzschia spp. dominated the phytoplankton ... abundance could be possible sites for locating krill fisheries in the southern oceans. Author(s):  X.N ...

   Meeting Document : WG-EMM-98/34 : Auteur(s): X.N. Verlecar, R. Vijayakumar, F. Saldhana and L. Martins (India)

9. Revised estimates of seabed areas within the 500 m isobath of the South Orkney Islands (Subarea 48.2) and consequences for standing stock biomass estimates of nine species of finfish

   increased from 5%-30% for eight species and decreased 20% for one. Author(s):  C.D. Jones (USA) Title ... estimates are about 1,424 (20%) nautical miles larger in area within the 50-500 m isobaths than Everson’s ...

   Meeting Document : WG-FSA-99/33 : Auteur(s): C.D. Jones (USA)

10. A comparison between otoliths and scales for use in estimating the age of Dissostichus eleginoides from South Georgia

    the two readers in estimating the age of D. eleginoides using otoliths and scales. File:  05ashford ... sides. Using ANOVA, we compared data obtained from the two structures to test the hypothesis that ... using otoliths. For scales, bias occurred for both readers between readings; for otoliths, only one ... reader was biased. Residual variances indicated one reader was relatively more precise than the other in ... . Sustainable exploitation rates should have been 20-30% of that based on age determinations from scales, in ... use of otoliths and scales in estimating tootlifish age 0 10 20 30 40 50 10 20 30 40 50 Reader l ... as one year if the fish was taken after 1 July but not before. Scales Typically, annuli on ... , used to test for differences between repeated age estimatiol~s using scales and otoliths by two ...

    Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 75–92 : Auteur(s): Ashford, J.R., S. Wischniowski, C. Jones, S. Bobko and I. Everson

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