Résultats de la recherche

1. THE DIET OF THE ANTARCTIC TOOTHFISH IN THE ROSS SEA

   toothfish, Dissostichus mawsoni, in the Ross Sea. The diet for a sample from McMurdo Sound in the ... macrourid (grenadier or rattail) Macrourus whitsoni dominated the diet at 54% and 37%, respectively. In the ... genera. It can be concluded that D. mawsoni is a generalized piscivorous predator that feeds primarily in ... the water column and occasionally on the substrate. There is variability in the diet within Subarea ...

   Meeting Document : WG-EMM-09/16 : Auteur(s): J.T. Eastman and A.L. DeVries (USA)

2. Milk consumption and growth efficiency in Antarctic fur seal (Arctocephalus gazella) pups

   consumption was determined on 388 occasions in 177 pups. Mean estimates of milk consumption ranged from 2.5 to ... 2-day maternal attendance periods (feeding bouts). There were no differences in milk consumption ... between the sexes in any year. Both per-bout and per-day milk consumption increased steadily with age ... before decreasing significantly in the last 30-40 days of lactation. Per-bout milk consumption was ...

   Meeting Document : WG-EMM-97/11 : Auteur(s): Socha, D.G., Arnould, J.P.Y., Boyd, I.L.

3. Population dynamics of wandering albatross Diomedea exulans and Amsterdam albatross D. amsterdamensis in the Indian Ocean and their relationships with longline fisheries: conservation implications

   Abstract:  Studies carried out over the past three decades at Crozet and Kerguelen Islands in the ... populations are in contact with long-line fisheries, mainly the pelagic Japanese southern blue-Jin tuna ... recent years has probably resulted in the slow recovery of these albatross populations as a result of ... albatross populations, most which are still declining in the Southern Ocean. Possible conservation measures ...

   Meeting Document : WG-FSA-96/09 : Auteur(s): Jouventin, P., Brothers, N., Weimerskirch, H.

4. Distribution and abundance of Antarctic krill in the vicinity of Elephant Island during the 1994 austral summer

   from four acoustic surveys conducted in the vicinity of Elephant Island, Antarctica, from mid-January ... biomass in the same survey portion was estimated to be 359 X 106 t. During the second and third surveys ... high densities of krill were mapped in the shoal waters to the north of Elephant Island; biomasses were ... during the last five years of AMLR surveys in the Elephant Island study area and one-fifth of the 1990 ...

   Meeting Document : WG-Joint-94/09 : Auteur(s): R.P. Hewitt and D.A. Demer (USA)

5. Standard methods of CEMP in video

   Abstract:  “Standard methods in video” was prepare to improve standarization of data collection ... for different groups that are working in CEMP. It was made under recommendation of WG CEMP) (Stockholm ... 5.17). The video was made in PAL N system. Author(s):  J.C.Ricca, M.A. Porretti and D.F. Vergani ... (Argentina) Title:  Standard methods of CEMP in video Approval:  Approved ...

   Meeting Document : WG-CEMP-92/44 : Auteur(s): J.C.Ricca, M.A. Porretti and D.F. Vergani (Argentina)

6. Population assessment of Antarctic toothfish in Subarea 48.4 using tag-recapture method

   Abstract:  The stock of Antarctic toothfish in the CCAMLR subarea 48.4 was estimated using as the ... Petersen method as  640 tonnes. Application of the harvest rate used for D. eleginoides in Subarea 48.3 (γ ... = 0.038) gives yields of 24 t for the Antarctic toothfish in the region vs. previous estimation of 30 ... in Subarea 48.4 using tag-recapture method Approval:  Approved ...

   Meeting Document : WG-FSA-13/64 : Auteur(s): V. Laptikhovsky (United Kingdom)

7. Has climate change promoted genetic fragmentation in the ice-dependent fish Pleuragramma antarcticum?

   pelagic life cycle and plays a major trophic role in the coastal Antarctic marine ecosystem. A previous ... pools, and population structure. In the present study, we used 16 EST-linked microsatellites to ... variability in the southwestern AP, while significant genetic differences were detected on a small geographic ... anti-clockwise Coastal Current, than in the opposite direction. Reduced level of gene flow along the ...

   Meeting Document : WG-FSA-13/67 : Auteur(s): C. Agostini, T. Patarnello (Italy), J. Ashford, J. Torres (USA) and L. Zane (Italy)

8. Preliminary examination of otolith microchemistry to determine stock structure in Antarctic toothfish (Dissostichus mawsoni) between SSRU 88.1C and 88.2H

   evaluated using otolith microchemistry techniques. Our aims were to (i) determine whether fish from in ... concentrations in the otolith edge and then to (ii) assess the potential of natal signatures to distinguish ...   stocks among these regions. For the elements (Mg, Al and Sr) spatial variation in otolith chemistry was ... shown. This resulted in the correct classification of 63% of fish overall to their original capture ...

   Meeting Document : WG-SAM-14/33 : Auteur(s): R. Tana, B.J. Hicks, C. Pilditch and S.M. Hanchet (New Zealand)

9. Apparent decrease of Weddell seal numbers in the western Ross Sea

   molting haul outs in the western Ross Sea: Edisto Inlet- Moubray Bay, northern Victoria Land, and ... Edisto-Moubray as well. The timing of decline, or perhaps spreading (low numbers of seals in more places ... ), is unknown but appears unrelated to changes in sea ice conditions, which was our initial hypothesis ... . We analyzed both historic and satellite-derived ice data but found only an expansion of pack ice in ...

   Meeting Document : WG-EMM-14/44 : Auteur(s): D.G. Ainley, M.A. Larue (USA), I. Stirling (Canada), S. Stammerjohn and D.B. Siniff (USA)

10. By-catch analysis as a part of progress report for the research fishery of Dissostichus spp. in Subarea 48.6 by Japan and South Africa during 2012/13–2016/17

    report for the research fishery of Dissostichus spp. in Subarea 48.6 by Japan and South Africa during ... by-catch occurred in most longline research operations, the number of by-catch individuals was less ... than 100 individuals in most of the operations. In most of longline operation, by-catch weight was less ... highest at research blocks 48.6_1. As temporal change of by-catch, only GRV shows obvious decrease in ...

    Meeting Document : WG-SAM-17/44 : Auteur(s): T. Okuda, S. Somhlaba and T. Ichii

Pages