Résultats de la recherche

1. Review of biological parameters for Ross Sea skates

   taken as bycatch in the Ross Sea toothfish fishery: Amblyraja georgiana and Bathyraja cf. eatonii ... . Differences in length-weight relationships among regions raise doubt about the conspecificity of A. georgiana ... (TL). The length at maturity of females is not well determined but is probably in the range 95–100 cm ... both sexes combined is: TLt = 101.3(1? e?0.308[t+1.30]). The best estimate of longevity in A. georgiana ...

   Meeting Document : WG-FSA-06/31 : Auteur(s): M.P. Francis (New Zealand)

2. Demography and population trends of the Atlantic yellow-nosed albatross

   Tristan da Cunha archipelago and Gough Island in the central South Atlantic Ocean, and is threatened by ... mortality from longline fisheries operating in the South Atlantic. Demographic data have been collected from ... two study colonies on Gough Island and Tristan da Cunha for 20 years. Annual variation in the number ... in the South Atlantic Ocean. Population modeling predicts annual rates of decrease of 1.5–2.8% on ...

   Meeting Document : WG-FSA-03/37 : Auteur(s): R. Cuthbert (United Kingdom), P.G. Ryan, J. Cooper (South Africa) and G. Hilton (United Kingdom)

3. Beach debris survey, Signy Island, South Orkney Islands 2000/2001

   CCAMLR in 1995/96 has been effective and should continue. Plastic waste was predominant, as in previous ... duration of sea-ice around Signy Island was prolonged in 2000/2001 and may have limited the amount of ... materials with a high resistence to degradation in the marine environment remains a problem and highlights ...

   Meeting Document : SC-CAMLR-XX/BG/05 : Auteur(s): Delegation of the United Kingdom

4. Beach debris survey Signy Island, South Orkney Islands 1997/98

   debris items collected from the beaches was the lowest recorded since the surveys began in 1990. This ... fishing vessels brought into force by CCAMLR in 1996, 36% of the debris found at Signy were packaging ... bands although the number recovered has been decreasing since 1993/94. The reduction in debris reported ... at Signy Island in 1997/98 continues a promising trend. However the considerable amount of plastic ...

   Meeting Document : CCAMLR-XVII/BG/20 : Auteur(s): Delegation of the United Kingdom

5. FURTHER DEVELOPMENTS OF A SIMULATION MODEL, ‘PATCH’, FOR EVALUATING MANAGEMENT STRATEGIES TO CONSERVE BENTHIC HABITATS (VULNERABLE MARINE ECOSYSTEMS) WHICH ARE POTENTIALLY VULNERABLE TO IMPACTS FROM BOTTOM FISHERIES

   ecosystems’ in order to maintain the ecological structure and function of, particularly, deep sea benthic ... uncertainties to be captured in a straight-forward manner to assist CCAMLR in maintaining its precautionary ... approach in managing Antarctic fisheries. The model is ready for use by WG-FSA this year to begin ...

   Meeting Document : WG-FSA-09/42 : Auteur(s): A.J. Constable (Australia)

6. SEABIRD: DRAFT USER MANUAL V1.00-2008/06/18

   that allows a great deal of flexibility in specifying the population dynamics, parameter estimation ... modelled population in the way that best suits the available data. Depending on these data the user may ... stage (e.g., immature or mature), sex, or behaviour (e.g., in any year mature birds may be classified as ... of events in a model year. A wide variety of types of data can be used. Estimation can be by maximum ...

   Meeting Document : WG-SAM-08/P03 : Auteur(s): D. Fu and R.I.C.C. Francis (New Zealand)

7. Acoustic discrimination of southern ocean zooplankton

   Abstract:  Acoustic surveys in the vicinity of the sub-Antarctic island of South Georgia revealed ... the existence of a number of horizontally extensive yet vertically discrete scattering layers in the ... employed for fishery acoustics, it is possible to discriminate in situ between several zooplanktonic taxa ... , taxa which in some instances exhibit similar gross morphological characteristics and have overlapping ...

   Meeting Document : WG-EMM-97/54 : Auteur(s): Watkins, J.L., Brierley, A.S., Goss, C., Ward, P.

8. Zooplankton target strength: volumetric or areal dependence?

   system. Experiments were conducted with live, tethered individuals in an enclosure filled with filtered ... Born Approximation Model (Chu et al., 1993), indicated that animal behavior is an important factor in ... the scattering characteristics of zooplankton. In addition, because scattering from individual ... zooplankton is highly non-linear, especially in the geometric scattering region (ka>l), linear regressions ...

   Meeting Document : WG-Krill-94/13 : Auteur(s): D.A. Demer and L.V. Martin (USA)

9. Beached marine debris surveys and incidences of seabird/marine mammal entanglements and hydrocarbon soiling at Bird Island and King Edward Point, South Georgia, and Signy Island, South Orkneys, 2009/10

   Abstract:  Data were collected at Bird Island, South Georgia and Signy Island, South Orkneys as in ... (November 2009 to March 2010). Plastic and longline fishing line were the most commonly observed items (in ... net) and none were observed at Signy. In total, 149 items of marine debris were found in association ...

   Meeting Document : SC-CAMLR-XXIX/BG/10 : Auteur(s): Delegation of the United Kingdom

10. Ocean acidification and the Southern Ocean

    , including the Southern Ocean. The relative undersaturation of CaCO3 in the Southern Ocean suggests that ... assumes “business as usual”- emissions leading to 778 ppm of CO2 in the atmosphere by 2100- aragonite will ... develop research programs to fill in the gaps of current research on Southern Ocean impacts as soon as ... processes besides calcification in invertebrates and vertebrates. Ocean acidification is relevant to ...

    Meeting Document : CCAMLR-XXIX/BG/24 : Auteur(s): ASOC Observer

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