Résultats de la recherche

1. Evidence to support the annual formation of growth zones in otoliths of Antarctic toothfish (Dissostichus mawsoni)

   ) have been aged assuming that one translucent zone is formed annually in the otoliths of this species ... before recapture. The number of zones between the fluorescent oxytetracycline line and the otolith margin ... indicates that one translucent zone is formed annually in otoliths of post-mature D. mawsoni. Otoliths from ... that the modes represented year classes and that one translucent zone is formed annually in otoliths of ...

   Meeting Document : WG-FSA-02/33 : Auteur(s): P.L. Horn, C.P. Sutton (New Zealand) and A.L. DeVries (USA)

2. DEMOGRAPHIC PATTERNS OF ANTARCTIC KRILL (EUPHAUSIA SUPERBA) EXPLAIN THE SPATIAL SEGREGATION OF BALEEN WHALES (MYSTICETI) AROUND THE SOUTH SHETLAND ISLANDS, ANTARCTICA

   Peninsula) and test whether whales exhibit interspecific differences in their exploitation of krill ... Ocean. We used a combination of spatial regression techniques, incorporating spatial autocorrelation, to ... model the overlap between three species of baleen whales and their krill prey. Whales exhibited ... the Antarctic Circumpolar Current. The spatial segregation of krill length-maturity stages provides an ...

   Meeting Document : WG-EMM-09/33 : Auteur(s): J.A. Santora, C.S. Reiss, V.J. Loeb and R.R. Veit (USA)

3. THE CONVENTION ON THE CONSERVATION OF ANTARCTIC MARINE LIVING RESOURCES (CCAMLR) AND THE ECOSYSTEM APPROACH As published in the International Journal of Marine and Coastal Law, Vol. 23, No. 3, 2008

   Abstract:  Lack of adequate governance of the high seas areas has resulted in the continued ... degradation of ocean and marine habitats. Ȁ e ecosystem approach, which comprises integrated, precautionary ... incorporation of an ecosystem approach to the conservation and management of marine living resources, and ... compliance levels, it has attempted to balance conservation objectives with the maintenance of commercial ...

   Meeting Document : CCAMLR-XXVII/BG/25 : Auteur(s): Submitted by ASOC

4. PRELIMINARY RESULTS OF TRIALS TESTING MODIFIED LONGLINE GEAR ‘TROTLINES’ IN PRESENCE OF CETACEANS IN SUBAREA 48.3

   cetaceans were present. This difference increased with increasing abundance of cetaceans highlighting the ... potential of this gear to reduce cetacean depredation. 3. By-catch to catch ratio was greater by number for ... Spanish system lines when cetaceans were present during hauling. 4. A large percentage of skates caught on ... . Consequences of a move to trotlines would therefore lead to: i. Some positive benefits by reducing cetacean ...

   Meeting Document : WG-FSA-08/44 : Auteur(s): R.E. Mitchell, J. Clark, P. Reyes, L. Jones, J. Pearce, C.E. Edwards and D. Agnew (UK)

5. An overview and some preliminary results of a biological/oceanographic survey off the coast of East Antarctica (80-150°e) carried out in January to March 1996

   oceanographic and biological variables over the entire survey area. This paper summarises the range of variables ... Abstract:  A major biological/physical survey of the waters off East Antarctica was carried out ... between January and April 1996. The focus was on the distribution and abundance of Antarctic krill in ... CCAMLR Statistical Area 58.4.1 but in addition, measurements were also made on a whole suite of ...

   Meeting Document : WG-EMM-96/29 : Auteur(s): de la Mare, W., Wright, S., Bindoff, N., Thiele, D., Pauly, T., Gillespie, D., Woehler, E., Nicol, S.

6. Stability of trip selections for the assessment of Antarctic toothfish in the Ross Sea

   Abstract:  A dataset for the 2009 assessment of Antarctic toothfish (Dissostichus mawsoni) in the ... Ross Sea was selected on the basis of data quality metrics for individual trips. Initial informative ... datasets were selected comprising trips with high (above median) rates of recovery of previously released ... dataset. A retrospective analysis of this data selection method was undertaken to evaluate whether trip ...

   Meeting Document : WG-FSA-10/26 : Auteur(s): D.A.J. Middleton (New Zealand)

7. Mitigation of Macrourus by-catch in research block 58.4.1_6 and estimation of Macrourus biomass and sustainable catch in Divisions 58.4.1 and 58.4.2

   ) avoidance, ii) mitigation and iii) the setting of sustainable by-catch limits if mortality is not ... preventable (SC-CAMLR-XXII, paragraph 5.230). Here, we undertake a risk assessment of the effects of ... block 58.4.1_6 in particular. We investigate the distribution of D. mawsoni and Macrourus spp. catch ... grid includes only areas of low Macrourus spp. by-catch rates, or (2) replace the requirement for ...

   Meeting Document : WG-FSA-17/23 : Auteur(s): D. Maschette, P. Burch, P. Yates and P. Ziegler

8. Cycles of Euphausia superba recruitment evident in the diet of Pygoscelid penguins and net trawls in the South Shetland Islands, Antarctica

   Abstract:  Size and sex of Antarctic krill taken from chinstrap and gentoo penguin diet were ... sustaining the population during each cycle. Penguin diet samples contained adult krill of similar lengths to ... proportionately more females when the krill population was dominated by large adults at the end of the cycles; net ... samples showed greater proportions of males in these years. These patterns are comparable to those ...

   Meeting Document : WG-EMM-07/P2 : Auteur(s): A. Miller and W. Trivelpiece (USA)

9. Estimation of the incidental capture of seabird species in commercial fisheries in New Zealand waters, 2000/01

   Abstract:  Ministry of Fisheries observers reported 1236 seabird captures from fishing operations ... novaezelandiae) trawl fisheries accounted for 94% of the 701 seabird captures in observed trawl fisheries ... . Observed incident rates in longline fisheries were highest in the ling longline fishery: 24% of observed ... ling autoline sets caught seabirds, compared with 6% of observed chartered tuna longline sets caught ...

   Meeting Document : WG-FSA-04/55 : Auteur(s): S.J. Baird (New Zealand)

10. A possible model of metapopulation structure of Dissostichus eleginoides in the southern Indian Ocean

    Abstract:  Based on data on movements of Patagonian toothfish derived from tagging experiments and ... analysis of toothfish DNA from Heard Island and McDonald Islands (HIMI), Kerguelen, Crozet and Marion ... some or all of the subadult fish at HIMI migrate northwestwards to Kerguelen and Crozet. Larval fish ... spawned to the north-west of HIMI then return to HIMI in the Antarctic Circumpolar Current. If such a ...

    Meeting Document : WG-FSA-03/72 : Auteur(s): R. Williams, A.J. Constable, C. Davies and S. Candy (Australia)

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