Résultats de la recherche

1. Fish and squid in the diet of king penguin chicks, Aptenodytes patagonicus, during winter at sub-Antarctic Crozet Islands

   Abstract:  The diet of king penguins, Aptenodytes patagonicus, rearing chicks was studied during ... of the 47 samples was 503 g. Percentages of wet and reconstituted masses showed that both fishes (66 ... and 36%, respectively) and squid (34 and 64%) are important components of the winter diet. Juveniles ... of the demersal onychoteuthid squid M oroteuthis ingens form the bulk of the cephalopod diet, and ...

   Meeting Document : WG-EMM-97/09 : Auteur(s): Cherel, Y., Ridoux, V., Rodhouse, P.G.

2. The fish diet of black-browed albatross Diomedea melanophrys and grey-headed albatross D. chrysostoma at South Georgia

   Abstract:  The fish component of the diet of black-browed and grey-headed albatrosses at South ... 1986 and 1994. Fish represented 30% and 72% by mass of the diet of black-browed albatrosses and 14% and ... 60% by mass of the diet of grey-headed albatrosses in 1986 and 1994 respectively. We determined the ... identity and quantified the contribution (by numbers, size and mass) of fish species mainly by using ...

   Meeting Document : WG-EMM-96/11 : Auteur(s): Reid, K., Prince, P.A., Croxall, J.P.

3. An evaluation of reduced target strength estimates reported for krill (Euphausia superba)

   on the same experiment and report new calculations of the target strength of krill (Euphausia superba ... ) that propose questioning previous measurements of krill target strength and estimates of abundance ... assumptions made in calculating target strength. Whether the results of these papers are valid is critically ... important, given that they are being cited as a basis for increasing the estimates of krill standing stock ...

   Meeting Document : WG-KRILL-90/13 : Auteur(s): M.C. Macaulay (USA)

4. Distribution, abundance and acoustic properties of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea

   community of top predators in the shelf waters of the Ross Sea. In spite of their abundance and important ... role in Antarctic food chains, very little is known of many ecological and biological aspects of this ... species. A combined trawl and acoustic survey of silverfish was carried out on the western Ross Sea shelf ... during the New Zealand International Polar Year Census of Antarctic Marine Life research voyage on R.V ...

   Meeting Document : WG-FSA-10/P04 : Auteur(s): R.L. O’Driscoll, G.J. Macaulay, S. Gauthier, M. Pinkerton and S. Hanchet

5. The annual random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2012

   Abstract:  The annual random stratified trawl survey at HIMI was completed in March to May of 2012 ... Ridge, Plateau Southeast and Plateau West, and in a repeat of the hauls in Ground B. Catches in this ... high as the long term average (2006-2011). The catches of Dissostichus eleginoides for 2012 were twice ... those of 2011 and about one and a half times higher than the long-term average. Champsocephalus gunnari ...

   Meeting Document : WG-FSA-12/25 : Auteur(s): G.B. Nowara and T. Lamb (Australia)

6. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2011/12

   Subarea 88.1 and for 10 years in Subarea 88.2. This report summarises the timing, depth, and location of ... fishing together with the catch of Dissostichus spp. and bycatch species by year for the period 1997–98 to ... 2011–12. During the 2011–12 fishing year most of the catch in Subarea 88.1 came from the slope SSRU ... 88.1K. About 70% of the catch in the north was taken from 88.1C, and about 85% of the catch on the shelf ...

   Meeting Document : WG-FSA-12/42 : Auteur(s): M.L. Stevenson ,S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)

7. Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.1

   -SAM meeting. We tentatively recalculated a sample size of Dissostichus spp in each block in such a way ... that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of coefficient ... variance of biomass estimate from the bootstrapped procedure, under the condition that the exploitation ... blocks, in order to promote successful stock assessment. We tentatively examined the degree of coverage ...

   Meeting Document : WG-FSA-13/38 : Auteur(s): Delegation of Japan

8. Descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 & 88.2 for the years 2000–01 to 2012–13

   Abstract:  We provide an update of the descriptive analyses of the toothfish tagging programme in ... Subareas 88.1 and 88.2, including summaries of data for the 2013 season. Overall, a total of 37 047 ... tagging rate of one toothfish per tonne of catch in the Ross Sea region. Tag recapture data showed that ... most fish are recorded as being recaptured only a short distance from their point of release, typically ...

   Meeting Document : WG-FSA-13/49 : Auteur(s): S. Parker, A. Dunn, S. Mormede and S. Hanchet (New Zealand)

9. Selectivity and two biomass measures in an age-based assessment of Antarctic krill (Euphausia superba)

   Abstract:  An integrated, age-structured model was fitted to different combinations of survey data ... using two forms of selectivity (logistic or double-logistic) with time-constant or annually varying ... selectivity to investigate the population dynamics of Antarctic krill (Euphausia superba) near the Antarctic ... the South Shetland Islands from 1992 to 2011. Two indices of krill biomass based on (1) trawl-net ...

   Meeting Document : WG-EMM-15/P07 : Auteur(s): D. Kinzey, G.M. Watters and C.S. Reiss

10. An ecosystem-based management procedure for krill fisheries: a method for determining spatially-structured catch limits to manage risk of significant localised fisheries impacts on predators

    single-species assessment of yield, and a method for implementing the procedure.  The decision rule for ... setting catch limits for a given harvest strategy has a straight forward expression of the target ... of predator-prey dynamics beyond that evident in the data.  It is a natural extension of the current ... precautionary approach of CCAMLR for krill and can utilise existing datasets, including B0 surveys, local scale ...

    Meeting Document : WG-EMM-15/36 : Auteur(s): A. Constable and S. Candy (Australia)

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