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1. 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)

2. Can otolith elemental signatures record the capture site of Patagonian toothfish (Dissostichus eleginoides), a fully marine fish in the Southern Ocean?

   . However, application has been more limited in species exposed exclusively to oceanic waters, where ... gradients in physical and chemical properties are less extreme. To test whether otolith elemental signatures ... record spatial information in an oceanic species, we sampled otoliths from Patagonian toothfish ... America and in the Antarctic were misclassified to sampling areas in the other region. Moreover, edge ...

   Meeting Document : WG-FSA-06/P1synpro : Auteur(s): Ashford, J.R., C.M. Jones, E. Hofmann, I. Everson, C. Moreno, G. Duhamel and R. Williams

3. Can otolith elemental signatures record the capture site of Patagonian toothfish (Dissostichus eleginoides), a fully marine fish in the Southern Ocean?

   . However, application has been more limited in species exposed exclusively to oceanic waters, where ... gradients in physical and chemical properties are less extreme. To test whether otolith elemental signatures ... record spatial information in an oceanic species, we sampled otoliths from Patagonian toothfish ... America and in the Antarctic were misclassified to sampling areas in the other region. Moreover, edge ...

   Meeting Document : WG-FSA-06/P1text : Auteur(s): Ashford, J.R., C.M. Jones, E. Hofmann, I. Everson, C. Moreno, G. Duhamel and R. Williams

4. Spatio-temporal trends of longline fishing effort in the Southern Ocean and implications for seabird by-catch

   distant-water pelagic fleets began fishing for tuna and tuna-like species in the early 1950s. Along with ... thousands of baited hooks in a day across many kilometres of water. These waters are often used as foraging ... Ocean’s longline fleets on seabird populations, this paper describes the trends in longline effort of the ... major pelagic and demersal fisheries in southern waters. The total reported effort from all longline ...

   Meeting Document : WG-FSA-02/43 : Auteur(s): G.N. Tuck, T. Polacheck and C.M. Bulman (Australia)

5. Notes on the availability of three important finfish species in offshore waters of the lower South Shetland Islands (Subarea 48.1)

   Abstract:  In 1998, an offshore scientific trawl survey of bottom fish sampling within the 50-500 ... m isobath of the lower South Shetlands Islands (King George Island to Low Island) was conducted. In ... gibberifrons has been monitored relative to another potentially exploitable fish, Notothenia coriiceps, in the ... relationships for these three species. In general, these two data sets are complementary, and demonstrate well ...

   Meeting Document : WG-FSA-99/31 : Auteur(s): C.D. Jones (USA), E.R. Barrera-Oro, E.R. Marschoff and R.J. Casaux (Argentina)

6. Sexual dimorphism and sexual segregation in foraging strategies of northern giant petrels Macronectes halli during incubation

   dimorphism, in terms of the intersexual food competition hypothesis, on foraging and fasting strategies of ... , duration of foraging trips) was greater for females than for males. In contrast, foraging efficiency ... body reserves. In males the total mass gain was best explained by mass at departure and body size. We ... , promoting sexual size dimorphism. Our results indicate that sex-specific differences in fasting endurance ...

   Meeting Document : WG-FSA-99/38 : Auteur(s): J. González-Solís, J.P. Croxall and A.G. Wood (United Kingdom)

7. Results of the Dissostichus spp. new fisheries projects in the Antarctic region (CCAMLR Statistical Subareas 48.1, 48.2 and 88.3)

   part of the New Fisheries Projects developed by Chile, mainly in order to establish presence of ... Dissostichus spp. in the CCAMLR Statistical Subareas 48.1, 48.2 and 88.3. Industrial longlines Spanish system ... toothfish (D. eleginoides) was captured from King George Island, in the Antarctic-Pacific Ocean (latitude 61 ... °24'S) to the Scottish Sea in the Antarctic-Atlantic (Latitude 58°01'S). The Dissostichus ...

   Meeting Document : SC-CAMLR-XVII/BG/07 Rev. 1 : Auteur(s): Delegation of Chile

8. 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)

9. 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.

10. 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)

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