Résultats de la recherche

1. Summary of Ross Sea skate tagging programme results

   years at liberty shows that some skates survive and recover from being hauled out of depths of around ... probably increases the survival of released animals. Unfortunately, this means that length at release can ... not be determined, so no useful data were gathered for estimating skate growth rates. Amblyraja ... maximum distance travelled was less than 70 km. The distance travelled did not increase with period at ...

   Meeting Document : WG-FSA-06/32 : Auteur(s): S.L. Ballara, A. Dunn and M.P. Francis (New Zealand)

2. Risk categorisation for Macrourus whitsoni and Amblyraja georgiana in the Ross Sea

   , and comparison of longline and trawl catch rates with other Antarctic areas suggest that population in ... . Amblyraja georgiana were categorized as risk status 3 – species that are exploited as bycatch, and have a ... limited reproductive potential, and/or other life history characteristics that make them especially ... the Ross Sea may be relatively large. Author(s):  R.L. O’Driscoll (New Zealand) Title:  Risk ...

   Meeting Document : WG-FSA-05/21 : Auteur(s): R.L. O’Driscoll (New Zealand)

3. Model-based, ecosystem risk assessments of MPA scenarios in Planning Domain 1

   Argentina and Chile can, if desired, be improved by changing the sizes of the coastal buffers that define ... to assess some of the risks associated with two marine protected area (MPA) scenarios in Planning ... Domain 1, one representing the MPA proposed by Argentina and Chile. We conclude that the MPA proposed by ... the General Protection Zones around the South Shetland and South Orkney Islands. We also conclude that ...

   Meeting Document : SC-CAMLR-XXXVI/BG/27 : Auteur(s): Delegation of the USA

4. A krill–predator–fishery model for evaluating candidate management procedures

   simulations. We present a range of performance measures that can be used to evaluate catch-allocation ... well as fishery performance. This evaluation must be conducted in the context of considerable ... transport of krill between these areas. Krill and predator population dynamics are implemented with coupled ... uncertainty, and structural uncertainty can be assessed by comparing and merging results from multiple such ...

   Meeting Document : WG-EMM-05/13 : Auteur(s): G.M. Watters, J.T. Hinke (USA), K. Reid and S. Hill (United Kingdom)

5. Assessment of escape mortality of Antarctic krill (Euphausia superba) in trawls

   (Euphausia superba) that escape from the most common mesh size used in the current commercial fishery. The ... on the mortality rates found. A decrease in body length was also found significantly correlated with ... increased mortality rate. The escape mortality rate from experiment parallels and considered to be closest ... to a realistic catching process in a 16 mm mesh size, was found to be 1-6%. Krill may be more ...

   Meeting Document : WG-EMM-14/14 : Auteur(s): B.A. Krafft (Norway) and L.A. Krag (Denmark)

6. TARGET STRENGTH STUDIES ON ANTARCTIC SILVERFISH (PLEURAGRAMMA ANTARCTICUM) IN THE ROSS SEA

   Abstract:  Target strength (TS) determinations can be classified into several types: 1 ... free swimming fish in their natural habitat. A canvassing of the literature suggested that the type of ... study may influence the result. For example, some authors suggested that freezing the fish reduce the ... over-all backscatter of 30% (Sun et al. 1985), others that TS measurements on living fish ex situ would ...

   Meeting Document : SG-ASAM-09/10 : Auteur(s): M. Azzali, I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi (Italy)

7. Differentiation of independent populations of Antarctic krill

   circulation. On the basis of the review, it is suggested that there is probably one composite population of E ... -populations is expected to correspond with the number of quasi-stationary cyclonic water circulations. At ... present, at least six stable cyclonic water circulations can be found and at least two or three of them ... may be habitats of independent krill sub-populations. A proposal is given for future studies into ... that in the Southern Ocean there is only one cyclonic circulation with its centre in the Weddell ... with five pairs of pleopods without setae). It is assumed that this path of development corresponds ... Weddell Drift, Le. is a part of the circulation in the Weddell Sea. It will be recalled that there are ... three of them may be habitats of independent krill populations. The possibility that conditions for ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 275-281 : Auteur(s): USSR

8. Fishery Report: Champsocephalus gunnari (ANI) South Georgia (Subarea 48.3)

   Throughout this report the CCAMLR fishing season is represented by the year in which that season ended, e.g ... 1998 1 4 520 6 1999 1 4 840 265 2000 2 4 036 4 114 2001 5 6 760 960 2002 5 5 557 2 667 2003 4 ... population but are also likely to be biased by changes in factors such as the characteristics/number of ... hauls (N) and the number of fish measured (n) in each year at the top of each panel. Note that in 2010 ...

   Document : Site Section: Publications

9. Recommandation : engager des discussions sur un moyen de planifier et d'organiser les travaux de la Commission pour la conservation de la faune et la flore marines de l'Antarctique (CCAMLR)

   Abstract:  In recent years, there has been an increase in the number and complexity of issues that ... issues concurrently. Australia recommends that, given discussions held during the CCAMLR Symposium, and ... ways to more effectively plan and organise the work of the Commission. Australia proposes that the ... -setting exercise. As such, Australia recommends that the Commission: agree that an improved approach to ...

   Meeting Document : CCAMLR-XXXIV/18 : Auteur(s): Delegation of Australia

10. Diet of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea region, Antarctica

    . Overall, the diet of sub-adult toothfish was similar to that of adult toothfish, with a dominance of ... stomach contents of toothfish could be used to detect ecosystem change in the Ross Sea region, with a ... the Ross Sea continental slope (70°–73°S, 175°E–175°W). Variation of stomach contents with toothfish ... of baited autoline fishing gear was found to be nearly 11 times higher for icefish than for ...

    Meeting Document : WG-FSA-12/52 : Auteur(s): D.W. Stevens, M.R. Dunn, M.H. Pinkerton and J.S. Forman (New Zealand)

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