Résultats de la recherche

1. Identification of Pleuragramma antarctica larvae in the Ross Sea via mitochondrial DNA

   , length and growth data for larvae found in the western and eastern Ross Sea during the austral summer of ... nursery grounds in Terra Nova Bay have led to added inquiry into larval distribution and life history ... traits in the Ross Sea. A report submitted to the CCAMLR-EMM working group last year provided abundance ... in a fraction of samples. Sequences were aligned with known GenBank sequences for P. antarctica and ...

   Meeting Document : WG-FSA-15/61 : Auteur(s): J.A. Caccavo (Italy), C. Brooks (USA), L. Zane (Italy) and J.R. Ashford (USA)

2. COLLAPSE OF SOUTH AFRICA’S PENGUINS IN THE EARLY 21ST CENTURY

   Algoa Bay (Eastern Cape), their breeding localities in these regions being separated by c. 600 km. Their ... period. In both the Western and Eastern Cape provinces, long-term trends in numbers of penguins breeding ... Abstract:  The number of African penguins Spheniscus demersus breeding in South Africa collapsed ... from about 56 000 pairs in 2001 to some 21 000 pairs in 2009, a loss of 35 000 pairs (>60%) in eight ...

   Meeting Document : WG-EMM-11/P8 : Auteur(s): R.J.M. Crawford, R. Altwegg, B.J. Barham, P.J. Barham, J.M. Durant, B.M. Dyer, D. Geldenhuys, A.B. Makhado, L. Pichegru, P.G. Ryan, L.G. Underhill, L. Upfold, J. Visagie, L.J. Waller and P.A. Whittington

3. Variation in the distribution of Antarctic krill Euphausia superba around South Georgia

   Abstract:  Between 1980 and 1997 British Antarctic Survey carried out 11 cruises in the region of ... cruises and look particularly at differences between krill taken from the eastern and western ends of the ... ). The PCA for all cruises combined showed that there were no obvious differences in the type of krill ... found in different water depths, although there were some indications that differences did occur between ...

   Meeting Document : WG-EMM-97/47 : Auteur(s): Daly, H.I., Murray, A.W.A., Watkins, J.L.

4. Longline sink rates on a bottom autoline vessel in New Zealand: draft

   the middle of an unweighted longline of this design sinks to 10m in a mean time of 63.0 seconds (n ... vessel F.V. San Aotea in New Zealand. The objective of the project was to determine line sink rate, and ... as would be used in normal fishing operations to test the effectiveness of weighting the longline as ... ):  N.W. McL. Smith (New Zealand) Title:  Longline sink rates on a bottom autoline vessel in New Zealand ...

   Meeting Document : WG-FSA-98/51 : Auteur(s): N.W. McL. Smith (New Zealand)

5. Report on fish by-catch on exploratory fishing in Divisions 58.4.1 and 58.4.2

   everywhere. The ratio by-catch to target catch was higher in the eastern part of Division 58.4.1. The ratio ... eastern blocks where Macrourus CPUE also increased in the last 3 years. Macrourus CPUE was 23kg/1000 hooks ... Abstract:  In this paper, we report on fish by-catch during exploratory fishing activities ... undertaken in Divisions 58.4.1 and 58.4.2 during the 2012 to 2018 seasons. Fish by-catch comprised 14 species ...

   Meeting Document : WG-FSA-18/28 : Auteur(s): C. Péron, P. Yates, D. Maschette, C. Chazeau, P. Ziegler, D. Welsford, N. Gasco and G. Duhamel

6. Validating the Gasco-method for depredation estimation in Subarea 48.3

   model estimation of the lost catch. A new method was developed in 2014 that used an observed change in ... method performed similarly to the established method both in estimating total losses, and identifying ... estimation in Subarea 48.3 Approval:  Approved Secretariat Workflow Status:  Content Approved Delegation ...

   Meeting Document : WG-SAM-16/32 : Auteur(s): M. Söffker and T. Earl

7. Adélie penguin population change in the pacific sector of Antarctica: relation to sea-ice extent and the Antarctic Circumpolar Current

   strong correlations to ice conditions in the eastern portion of the study area (174 to 130°W), and ... evidence that the Ross Island penguins winter in the eastern Ross Sea/western Amundsen Sea. A demographic ... Abstract:  One of the longest continuing data sets involving a marine organism in the Antarctic is ... environmental factors; and used path analysis to analyze annual variation in population growth in relation to ...

   Meeting Document : WG-EMM-01/23 : Auteur(s): P.R. Wilson (New Zealand), D.G. Ainley, N. Nur, S.S. Jacobs (USA), K.J. Barton (New Zealand), G. Ballard and J.C. Comiso (USA)

8. Descriptive analysis of mesopelagic backscatter from acoustic data collected in the Ross Sea

   estimate middle trophic level prey organisms (e.g., krill and mesopelagic fish) in the Ross Sea. Single ... frequency (38 kHz) acoustic data were available from New Zealand longline vessels participating in the ... exploratory fishery for toothfish in 2002–03 and 2005–06, and multifrequency (12, 38, and 120 kHz) acoustic ... data were collected from the research vessel Tangaroa during a voyage to the western Ross Sea in ...

   Meeting Document : WG-EMM-06/11 : Auteur(s): R.L. O’Driscoll (New Zealand)

9. The relationship between foraging behaviour and energy expenditure in Antarctic fur seals

   expenditure was investigated in nine Antarctic fur seal females rearing pups. At-sea metablic rate (MR) (mean ... of 6.34 ± 0.4 W • kg–1; 4.6 times predicted BMR) was positively correlated to foraging trip duration ... :  The relationship between foraging behaviour and energy expenditure in Antarctic fur seals Approval ...

   Meeting Document : WG-EMM-96/07 : Auteur(s): Boyd, I.L., Arnould, J.P.Y., Speakman, J.R.

10. Krill distribution in the western Atlantic sector of the Southern Ocean during 1983/84, 1984/85 and 1987/88 on the basis of the Soviet mesoscale surveys with Isaacs Kidd midwater trawl

    aggregations was observed in the western part of the area from Antarctic Peninsula to the eastern part of the ... the eastern part of the Scotia Sea may cause its absence in the region of South Georgia independing of ... Abstract:  In the paper the results of the investigations on three mesoscale surveys covering wide ... from 158 to 202 stations were carried out by Soviet research vessels in summer-autumn periods of 1983 ...

    Meeting Document : WG-EMM-98/32 : Auteur(s): V.A. Sushin and K.E. Shulgovsky (Russia)

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