Résultats de la recherche

1. APPLICATION TO UNDERTAKE WINTER SCIENTIFIC RESEARCH IN CCAMLR SUBAREA 88.1 (SSRUS 88.1B, 88.1C AND 88.1G) IN THE 2008/09 SEASON

   in CCAMLR SSRUs 88.1B, 88.1C and, ice permitting, 88.1G in 2008/09, as the first in a three year time ... collect information that should assist in the understanding of the early life history and reproduction of ... accordance with Conservation Measures 24-01, 33-03, 41-01 and 41-09. Author(s):  Delegation of New Zealand ...

   Meeting Document : WG-FSA-08/62 : Auteur(s): Delegation of New Zealand

2. Net-based verification of acoustic techniques used to identify Antarctic krill

   ' using an SDWBA-derived range for Sv120-3, (iii) '2 freq 2-16'- with an Sv120-38 range ... of 2-16 dB and (iv) '2 freq 2-12'-with an Sv120-38 range of 2-12 dB The '3 freq model ... orientation distributions for the two cruises were estimated with the SDWBA model, with cruise specific ... orientation distributions applied the performance of the '3 freq model' was comparable with the two ...

   Meeting Document : SG-ASAM-09/04 : Auteur(s): J. Watkins and S. Fielding (United Kingdom)

3. Hook selectivity in the longline fishery of Dissostichus eleginoides (Nototheniidae) off the Chilean coast

   fisheries of the patagonian toothfish Dissostichus eleginoides related with the selectivity of the type and ... . The size frequency of the population collected with straight hooks No3 and 4 are not significatively ... different, being No 3 near 31 % more efficient than No 4. Different bait do not present significative ... as the number of the straight hook increases (for example from 4 to 3) or when they change from ...

   Meeting Document : WG-FSA-91/11 : Auteur(s): C.A. Moreno (Chile)

4. Population status of Ross Sea killer whales (Orcinus orca, Type C) in McMurdo Sound, Antarctica, based on photo-identification studies

   -eating ecotype, in McMurdo Sound, Antarctica, during 7 seasons, over a 14-year period from 2001/02 to ... -recapture approach to identify a seasonal ‘resident’ population with an average annual abundance of 55 ... individuals (95% probability = 44-68) that exhibited strong inter- and intra-annual site fidelity, with ... with the average annual estimated number of deaths (= 2.4, 95% probability = 1.2-4) being balanced by ...

   Meeting Document : WG-EMM-16/50 : Auteur(s): R. Pitman, H. Fearnbach and J.W. Durban

5. Estimation of tag-loss rates for tagged fish in the Patagonian toothfish (Dissostichus eleginoides) fisheries at Heard Island and McDonald Islands in Division 58.5.2

   fishery, 99.3% of all double-tagged fish retain at least one tag after one year, and 80.2% after ten years ... , with longline-caught and recaptured fish losing their tags quicker than trawl-caught and recaptured ... fish. With an initial tag-loss proportion of 2.8% and ongoing tag-loss rate of 0.056 in the longline ... -loss rate for longline varied strongly between time periods, with l = 0.007 for 2003-2006, l = 0.021 ...

   Meeting Document : WG-FSA-17/21 : Auteur(s): P. Ziegler

6. Diet variability and reproductive performance of macaroni penguins (Eudyptes chrysolophus) at Bird Island, South Georgia

   . frigida) in 2000. There was no clearly dominant prey group in 1999. The five-year average proportion of E ... frequency occurrence of T. gaudichaudii both increased with a decreasing proportion of E. superba in the ... due to higher energy or time costs associated with feeding on alternative prey types. Author(s):  C.M ... (Euphausia superba) was the main prey in 17 out of 22 years. Amphipods (Themisto gaudichaudii) were the main ...

   Meeting Document : WG-EMM-12/17 : Auteur(s): C.M. Waluda, S.L. Hill, H.J. Peat and P.N. Trathan (United Kingdom)

7. Analysis of krill fishery operations in Subarea 48.1: spatial-time distribution of CPUE and fishing efforts

   methods. Our investigation shows how fishery operated by years and month in each SSMUs with special ... method. We obtained the additional evidence that ‘high CPUE’ regime’ in 2006-2011 is not associated with ... Abstract:  In previous years we revealed that period 2006-2011 is characterized by the highest ... values of standardized CPUE indices in the Subarea 48.1 for the last 25 years. We continue to investigate ...

   Meeting Document : WG-EMM-14/21 : Auteur(s): S. Kasatkina and P. Gasyukov (Russia)

8. Results of the sixth Ross Sea shelf survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, January 2017

   appears in 2012 progressing through each year, with the appearance of a second strong cohort in 2015. The ... predators: Terra Nova Bay in 2017, with McMurdo Sound surveyed in 2016. The estimated relative biomass index ... . Scaled length frequencies for the core strata indicate the progression of a strong year class that ... decline in relative biomass during the survey time series is consistent with the decline in abundance of ...

   Meeting Document : WG-SAM-17/01 : Auteur(s): K. Large, L. Robinson and S. Parker

9. SO-AntEco: Contributing information and scientific advice on benthic biodiversity in the South Orkney Islands (Domain 1) region

   with an international team of scientists from the Scientific Committee for Antarctic Research (SCAR ... . The expedition took place on board the BAS research ship RRS James Clark Ross in early 2016. The focus ... , 2014). The benthic assemblages of the SOISS MPA region were found to be strongly correlated with ... substrate, where hard substrates hosted a greater number of individuals, taxa and biomass with a dominance ...

   Meeting Document : WG-EMM-17/37 : Auteur(s): M.J. Brasier, S.M. Grant, P.N. Trathan, L. Allcock, O.S. Ashford, H. Blagbrough, A. Brandt, B. Danis, R. Downey, M. Eléaume, P. Enderlein, C. Ghiglione, O. Hogg, K. Linse, M. Mackenzie, C. Moreau, L. Robinson, E. Rodríguez, V. Spiridonov, A. Tate, M. Taylor, C. Waller, H. Wiklund and H.J. Griffiths

10. Coincidence between climate fluctuations and variability in the Antarctic krill (Euphausia superba) recruitment

    Drake Passage and krill recruitment variabiIlty. Years of high pressure gradients coincided with the ... years of good krill recruitment, and vice versa. Author(s):  Sasai, Y., Kutsuwada, K., Naganobu, M ...

    Meeting Document : WG-EMM-95/53 : Auteur(s): Sasai, Y., Kutsuwada, K., Naganobu, M.

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