Résultats de la recherche

1. Trade data analysis – Annual report of global toothfish trade data

   . Application of the Max Partner Pair (MPP) estimation methodology identified the USA again as the largest ... sources for the trade of toothfish products for the 2018 calendar year. The analysis has identified that ... forms with mean unit values of 24.03 US$/kg for imports and 23.40 US$/kg for exports. The data ... identified the largest importer was the United States of America (USA), accounting for 36.50% of the global ...

   Meeting Document : CCAMLR-38/BG/09 : Auteur(s): CCAMLR Secretariat

2. Milk fatty acid signatures indicate both major and minor shifts in foraging ecology of lactating Antarctic fur seals

   away from breeding grounds and likely switch to a diet of krill during lactation. Additionally, at ... Abstract:  Fatty acid signature analysis is based on the conservation and unique signatures of ... fatty acids in the marine food chain and it may be useful in determining the composition of seal diets ... Antarctic fur seals at South Georgia during the perinatal period (n= 19) and subsequently during early (n=11 ...

   Meeting Document : WG-EMM-97/14 : Auteur(s): Boyd, I.L., Iverson, S.J., Arnould, J.P.Y.

3. 2018 International Conference on Assessing Status and Trends of Habitats, Key Species and Ecosystems in the Southern Ocean, Hobart, Tasmania, Australia

   Abstract:  The program Integrating Climate and Ecosystem Dynamics, which is a partner program of ... IMBER and SCAR, will be holding a conference on assessing status and trends of habitats, key species and ... ecosystems in the Southern Ocean in April 2018.  This background paper is an invitation to Members of the SC ... -CAMLR to participate in working groups on four themes that will be of benefit to SC-CAMLR: (1 ...

   Meeting Document : SC-CAMLR-XXXIV/BG/22 : Auteur(s): Delegation of Australia

4. DEVELOPMENT OF A METHODOLOGY FOR DATA QUALITY ASSESSMENT

   biological sampling data from a fishing trip. In particular these measures aim to quantify the prevalence of ... Abstract:  Measures are developed which aim to summarise the quality of fishing event, catch, and ... position or time reporting errors, the diversity of catch, the extent to which catch data follow Benford ... 's Law for the distribution of the first significant digit, whether length-frequency data have been ...

   Meeting Document : WG-SAM-08/13 : Auteur(s): D.A.J. Middleton and A. Dunn (New Zealand)

5. Effects of variability in prey abundance on reproduction and foraging in chinstrap penguins (Pygoscelis antarctica)

   , number of trips day–1, trip duration, number of dives trip–1 and dive rate) did not differ between years ... Abstract:  Life-history theory predicts that adults of long-lived species such as seabirds should ... offspring provisioning, the most energetically costly component of seabird parental care, adults need to ... contend with large interannual fluctuations in prey availability and hence the cost of chick provisioning ...

   Meeting Document : WG-EMM-06/P6 : Auteur(s): D.A. Croll, D.A. Demer, R.P. Hewitt, J.K. Jansen, M.E. Goebel and B.R. Tershy (USA)

6. Diet and foraging effort of Adélie penguins in relation to pack-ice conditions in the southern Ross Sea

   Abstract:  We investigated the diet and aspects of foraging effort among Adélie Penguins ... Pygoscelis adeliae breeding at three colonies on Ross Island, in the southwestern Ross Sea-- Capes Royds ... , Bird and Crozier-- during the chick provisioning period of three austral summers, 1994-95, 1995-96 and ... 1996-97. During the study period, pack-ice cover differed in waters offshore of these colonies, by ...

   Meeting Document : WG-EMM-98/15 : Auteur(s): D.G. Ainley (USA), P.R. Wilson, K.J. Barton (New Zealand), G. Ballard, N. Nur (USA) and B. Karl (New Zealand)

7. Adélie penguin foraging behaviour and breeding success in seasons of contrasting krill availability (Mawson Coast, Antarctica)

   penguins at the Béchervaise Island CEMP site were compared between seasons of contrasting krill ... period. Data on meal mass and foraging trip duration were combined to provide an index of provisioning ... differences between the two seasons included A5: foraging trip duration, A6: breeding success and A8: meal ... particularly apparent during the late guard to early crèche stages of chick rearing, coinciding with the timing ...

   Meeting Document : WG-EMM-03/44 : Auteur(s): J. Clarke, M. Tierney, S. Candy, S. Nicol, L. Irvine and K. Kerry (Australia)

8. Spatio-temporal trends of longline fishing effort in the Southern Ocean and implications for seabird by-catch

   the more recent development and expansion of demersal longline fleets for species such as Patagonian ... toothfish, these vessels are a major source of mortality to several species of seabird. Vessels can set many ... thousands of baited hooks in a day across many kilometres of water. These waters are often used as foraging ... hooks and subsequently drown. To provide a greater understanding of the potential impact of the Southern ...

   Meeting Document : WG-FSA-02/43 : Auteur(s): G.N. Tuck, T. Polacheck and C.M. Bulman (Australia)

9. A REVIEW OF BIAS AND UNCERTAINTY IN ANTARCTIC PACK-ICE SEAL ABUNDANCE ESTIMATES

   Abstract:  While the joint CCAMLR-IWC workshop will consider a number of parameters for species ... of pack-ice seals focuses primarily on abundance and to a lesser extent trends in abundance. The ... review addresses population surveys and abundance estimates for the four species of phocid seal commonly ... spatial scope covers the circumpolar extent of pack-ice, and the temporal scope spans a period of more ...

   Meeting Document : CCAMLR-IWC-WS-08/06 : Auteur(s): Steinhage, D., Bengtson, J., Blix, A.S., Bester, M., Boveng, P., Laake, J., Cameron, M., Nordøy, E., Forcada, J., Stewart, B., Southwell, C., Trathan, P., Rogers, T., Plotz, J., Bornemann, H.

10. Draft: differences in the foraging strategies of male and female Adelie penguins

    of breeding Adelie penguins were demonstrated at two widely separated locations over a number of ... Abstract:  Consistent gender differences in foraging trip durations, feeding localities and diet ... frequently and consumed larger quantities of krill, especially when chicks were small. Males tended instead ... on fish throughout chick rearing. The importance of these results to monitoring programs such as the ...

    Meeting Document : WG-EMM-95/46 : Auteur(s): Franchi, E., Kerry, K., Clarke, J.

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