Résultats de la recherche

1. Stock assessment of mackerel icefish (Champsocephalus gunnari) in the vicinity of Kerguelen Islands (Division 58.5.1) after the 2017 Poker Biomass survey

   Abstract:  In 2017, a bottom trawl survey (PoKer 4) was undertaken at Kerguelen Islands (Division ... 58.5.1) to collect information about the size distribution and the biomass status of mackerel icefish ... , Champsocephalus gunnari. Data from this random stratified trawl survey was used for a short term assessment of C ... of 3081 t is recommended for 2017/2018 and 2753 t for 2018/2019. Author(s):  R. Sinegre and G ...

   Meeting Document : WG-FSA-17/63 : Auteur(s): R. Sinegre and G. Duhamel

2. The Use of Penguin Stomachal Contents for the Simultaneous Study of Prey and Predator Parameters

   assumptions made in the analysis of data. Nested designs are proposed as the correct approach because lack of ... independence between krill found in the stomach of a given penguin prevents the pooling of krill lengths from ... different samples. Samples taken at Bahía Esperanza are used to illustrate the different approaches. A ... highly significant linear regression between krill size and time was found. Full use of the information ...

   Meeting Document : WG-CEMP-89/16 : Auteur(s): E. Marschoff and B. González (Argentina)

3. Distribution and biological characteristics of two toothfish species of genus Dissostichus (family Nototheniidae) off Bouvet Island

   crossover point at depth of 1300 m. For both species the size and weight compositions were studied; indices ... ) toothfish, were registered during the fishery on Dissosyichus spp. on the shelf edge and slope of Bouvet ... surrounding the island. The vertical distribution of two species was differentiated distinctly, with the ... of stomach fullness and qualitative diet composition as well as maturation stages of gonads and their ...

   Meeting Document : WG-FSA-11/17 : Auteur(s): A.F. Petrov (Russia)

4. 2007 krill biomass update of the South Shetland and Elephant Island regions of Area 48

   Abstract:  Antarctic krill biomass trends in the South Shetland Island region of Area 48 are ... 2007), acoustic biomass estimates previously presented at the 2006 WG-EMM meeting in Namibia (WG-EMM-06 ... from Author(s):  C.S. Reiss and A.M. Cossio (USA) Title:  2007 krill biomass update of the South ... Shetland and Elephant Island regions of Area 48 Approval:  Approved ...

   Meeting Document : WG-EMM-07/31 : Auteur(s): C.S. Reiss and A.M. Cossio (USA)

5. Population dynamics of the wandering albatross (Diomedea exulans) on Macquarie Island and the effects of mortality from longline fishing

   increased from 17 in 1956 to a maximum of 97 in 1966, and then declined at an average rate of 8.1% per year ... Abstract:  The estimated breeding population of wandering albatrosses on Macquarie Island ... emigration). The decline is correlated with the onset of large-scale fishing for tuna in the southern ... hemisphere using longlines. The effect of longline mortality on the population dynamics of the wandering ...

   Meeting Document : WG-IMALF-94/07 : Auteur(s): William K. de la Mare and Knowles R. Kerry (Australia)

6. Sensitivities in the assessment of the Patagonian toothfish (D. eleginoides) in Subareas 48.3 and 48.4 to truncation of tagging data

   Abstract:  The assessment of toothfish in CCAMLR subarea 48.3 currently uses the first four years ... of tag recaptures post release as input data, whereas the assessment in subarea 48.4 uses all ... available recapture data (excluding in-year recaptures). A theoretical analysis of the use of data from ... double-tagged recaptures suggests that including recaptures from fish at liberty for long periods will ...

   Meeting Document : WG-SAM-17/35 : Auteur(s): T. Earl

7. THE HISTOLOGICAL ANALYSIS OF OOGENESIS AND MATURITY OF ANTARCTIC TOOTHFISH FROM THE ROSS SEA

   toothfish oogenesis have been determined. At the maturing of toothfish, ovaries from the stages III to IV ... Abstract:  The results of the histological analysis of the Antarctic toothfish (Dissostichus ... morphological parameters, indices of gonads and condition by Fulton have been described. The histological ... criteria of the assessment of the ovary maturity stages, cytological parameters of oocytes and type of the ...

   Meeting Document : WG-FSA-09/26 : Auteur(s): S.V. Piyanova and A.F. Petrov (Russia)

8. The effect of abiotic factors on the reproduction of seabirds on the Argentine Islands

   Abstract:  The research was conducted during the summer season from 12.13.2011 to 02.09.2012 at ... the Ukrainian Antarctic station "Academik Vernadsky". The most numerous breeding colony of ... among the newborn penguins on the Galindez Is caused by starvation. The number of residential nests ... decreased almost three times. Underwater surveys conducted by us in this period in the area of Galindez Is ...

   Meeting Document : WG-EMM-16/59 : Auteur(s): І.V. Dykyy

9. By-catch of juvenile Champsocephalus gunnari in krill fishery on the shelf of South Georgia Island

   depth with a maximum density observed at depth between 100 and 200 m. High catches of C. gunnari ... Abstract:  AtlantNIRO had conducted in 1982-1990 a series of juvenile fish trawl surveys of ... abundant species around South Georgia Is. Results of these survey were summarised and compared with ... published data. Juveniles of Champsocephalus gunnari were found to be distributed from the surface to 500 m ...

   Meeting Document : WG-FSA-92/06 : Auteur(s): G.A. Frolkina, V.I. Latogursky, V.A. Sushin (Russian Federation)

10. Can the length composition of krill in predator diets provide information on the age-dependence of krill natural mortality?

    schedule of krill natural mortality at age. In principle, such a method would allow inferences about this ... of krill is split between predator species. This method uses data on the length distribution of krill ... predator abundance and food consumption studies. Some results of the method are put forward purely for ... illustrative purposes. Further discussions about the practicalities of obtaining reliable estimates of the ...

    Meeting Document : WG-EMM-95/40 : Auteur(s): Thomson, R.B., Butterworth, D.S.

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