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CCAMLR

Comisión para la Conservación de los Recursos Vivos Marinos Antárticos

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  1. 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 : Autor(es): D.A. Croll, D.A. Demer, R.P. Hewitt, J.K. Jansen, M.E. Goebel and B.R. Tershy (USA)

  2. 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 : Autor(es): D.G. Ainley (USA), P.R. Wilson, K.J. Barton (New Zealand), G. Ballard, N. Nur (USA) and B. Karl (New Zealand)

  3. 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 : Autor(es): J. Clarke, M. Tierney, S. Candy, S. Nicol, L. Irvine and K. Kerry (Australia)

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

    distant-water pelagic fleets began fishing for tuna and tuna-like species in the early 1950s. Along with ... 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 ...

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

  5. 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 : Autor(es): 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.

  6. 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 : Autor(es): Franchi, E., Kerry, K., Clarke, J.

  7. Foraging response of Antarctic fur seals to changes in the marine environment

    1964 d at sea. The frequencies of krill, fish and squid in the diet were estimated from prey items ... Abstract:  This study examined the relative contribution of environmental variation and the ... seasonal demands of pup rearing on the foraging behaviour of female Antarctic fur seals Arctocephalus ... gazella at Bird Island, South Georgia (54° S, 38° W), during 3 austral summers (1994 to 1996). Time-depth ...

    Meeting Document : WG-EMM-99/35 : Autor(es): D.J. McCafferty, I.L. Boyd, T.R. Walker and R.I. Taylor (United Kingdom)

  8. Development of standard methods for environmental data

    Abstract:  At the request of WG-EMM-97, the Secretariat has revised the draft standard method for ... -ice cover viewed from a CEMP site), F3 (local weather at a CEMP site) and F4 (snow cover at a CEMP ... site). Author(s):  Secretariat Title:  Development of standard methods for environmental data Approval ...

    Meeting Document : WG-EMM-98/06 : Autor(es): Secretariat

  9. A summary of the commercial fishery for mackerel icefish Champsocephalus gunnari in Subarea 48.3 during the 1997/98 season

    , fished commercially for mackerel icefish at South Georgia (Subarea 48.3) using a midwater trawl for ten ... days between 25 December 1997 and 5 January 1998. The total catch of C. gunnari was 5.04 tonnes in 34 ... hauls. 67% of this catch was taken in just two hauls, confirming the patchy distribution of this species ... . Most of the catch was made up of fish between 22 and 30 cm long. Fish of this size range have ...

    Meeting Document : WG-FSA-98/53 : Autor(es): G. Parkes, A. King and C. Jones (United Kingdom)

  10. Proposal to standardise the submission of meeting documents to working groups

    Abstract:  At the request of the Scientific Committee, the Secretariat has prepared a single ... reference document which provides guidelines for the submission of meeting documents to the Scientific ... benefit from some standardisation of the Working Group-specific differences in relation to: submission ... proposal to WG-FSA for consideration at its meeting in 2005. Author(s):  Secretariat Title:  Proposal to ...

    Meeting Document : WG-EMM-05/10 : Autor(es): Secretariat

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Correo electrónico: ccamlr [at] ccamlr [dot] org
Teléfono: +61 3 6210 1111
Facsímil: +61 3 6224 8744
Dirección: 181 Macquarie Street, Hobart, 7000, Tasmania, Australia

 

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