Résultats de la recherche

1. The biology and ecology of mackerel icefish, Champsocephalus gunnari – an Antarctic fish species that lack haemoglobin

   may mean that the stocks of C. gunnari in Sub-Antarctic waters have far more resilience and a greater ... exploited since the beginning of the 1970's with reported annual catches exceeding 50- 100 000 tomes in ... characteristics in common, such as feeding mode and food, early life history, and growth in the first years of ... . They may grow to more than 60cm and may become 13-15 years old. However, in the vicinity of South ...

   Meeting Document : WG-FSA-96/24 : Auteur(s): Everson, I., Kock, K.-H.

2. DIRECT EFFECTS OF CLIMATE CHANGE ON THE ANTARCTIC KRILL FISHERY

   seasonal behaviour of the region’s largest fishery, that for Antarctic krill. Declining sea ice cover in ... the main krill fishing grounds has resulted in greater accessibility of krill stocks to the fishing ... thought of as being indirect, for example through distributional changes of fish populations, changes in ... evidence of direct effects of the changing physical environment – the duration of sea ice cover- on the ...

   Meeting Document : WG-EMM-09/P06 : Auteur(s): S. Kawaguchi, S. Nicol and A.J. Press

3. Summary of monitoring and research effort and preliminary results from the 2019 Scotia Sea krill monitoring survey with FV Cabo de Hornos

   samples on the shelf north of the south Shetland islands, in the Bransfield Strait, the shelf north of the ... distribution were dominated by two modes, one of very large animals averaging around 55 mm dominating in the ... Association of Responsible Harvesting Companies (ARK) and manned with personnel from the Institute of Marine ... Research to carry out a significant part of the 2019 Scotia Sea large scale krill monitoring. All sections ...

   Meeting Document : WG-EMM-2019/46 : Auteur(s): G. Skaret, M. Martinussen, G. McCallum, R. Pedersen, J. Rønning, A.L. Donoso, O.A. Bergstad and B.A. Krafft

4. CASAL model evaluation incorporating the calculation of harvest rate for D. eleginoides at Division 58.4.4b

   Abstract:  In order to achieve the milestone “1.5 Update CASAL model” of the ongoing research plan ... at the block 1 of Division 58.4.4b (Table 1). Changing IUU level (26.5 t to 40 t) in 2009/10 fishing ... season cause increasing of B0 In all scenarios, the estimated MCYs for D. eleginoides were higher than ... 58.4.4b were revised. Following WG-SAM-2019 suggestions (para 6.76 in the WG-SAM2019 report), we conducted ...

   Meeting Document : WG-FSA-2019/62 : Auteur(s): T. Okuda and F. Massiot-Granier

5. Population and breeding of the gentoo penguin Pygoscelis papua at Marion Island, 1994/95 to 2002/03

   Abstract:  The numbers of gentoo penguins Pygoscelis papua breeding at subantarctic Marion Island ... 1998/99, there was a steady decrease in numbers breeding between 1995/96 and 2000/01, when the ... increased the overall production of fledged chicks by 11%. Based on demographic parameters measured at other ... localities, the production of chicks at Marion Island was inadequate to maintain the population during the ...

   Meeting Document : WG-EMM-03/16 : Auteur(s): R.J.M. Crawford, J. Cooper, M. du Toit, M.D. Greyling, B. Hanise, C.L. Holness, D.G. Keith, J.L. Nel, S.L. Petersen, K. Spencer, D. Tshingana and A.C. Wolfaardt (South Africa)

6. Larval fish distribution and abundance of the western Ross Sea

   carried out in the western Ross Sea in November-December 1994. The present study focused on improvement of ... the knowledge of the larval fish community in relation to its distribution and relative abundance. A ... abundance of larval fish in the whole area was about 2.7 specimens / 1000 m3 of sea water filtered. The ... Chionodraco sp. It was noteworthy the high number of Trematomus lepidorhinus (570 larvae) found in a single ...

   Meeting Document : WG-FSA-95/11 : Auteur(s): Greco, S., la Mesa, M., Vacchi, M.

7. Modelling the impact of fishery by-catches on albatross populations

   parameters in the model. 3. The model used two alternative assumptions about patterns of at-sea distribution ... -catch in longline fisheries and this mortality has been implicated in the population declines. 2. We ... developed a deterministic, density-dependent, age-structured model for assessing the effects of longlining ... of wandering albatross (uniform between 30°S–60°S; proportional to the distribution of longline ...

   Meeting Document : WG-FSA-01/18 : Auteur(s): G. Tuck, T. Polacheck (Australia), J.P. Croxall (UK) and H. Weimerskirch (France)

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

   60% by mass of the diet of grey-headed albatrosses in 1986 and 1994 respectively. We determined the ... (40% estimated biomass), whereas in 1994 Pseudochaenichthys georgianus was the main fish prey (57% of ... from the commercial fishery, which was active in 1986 but closed in 1994. Otherwise the fish diet of ... Abstract:  The fish component of the diet of black-browed and grey-headed albatrosses at South ...

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

9. Feeding ecology of the two sympatric fish species Notothenia rossii and N. coriiceps from western Antarctic Peninsula: a fatty acids and stable isotopes approach

   useful tool to elucidate the flow of energy and trophic interactions in an ecosystem and to analyse the ... - Notothenia rossii and N. coriiceps – that are key components in the inshore ecosystem of the South Shetland ... flow, taking as representative of the area the local food web of Potter Cove, in King George Island ... , polychaetes and gastropods) were screened in order to re-evaluate their trophic position (TP) and the energy ...

   Meeting Document : WG-FSA-2019/26 : Auteur(s): E. Moreira, M. Novillo, K. Mintenbeck, E. Barrera-Oro and M. De Troch

10. METHODOLOGY OF EVALUATING THE AQUATIC LIFE RESOURCES

    applied in the proposed technique offer the mean integral values of probabilities. It is recommended to ... Abstract:  ic life is developed in accordance with the rules of metrology, mathematical statistics ... water life was investigated through biocenotic conditionality in the areas of their equal probability in ... concentrations. The traditional method of squares in evaluating the stocks of water life was modernized with the ...

    Meeting Document : WG-SAM-08/P02 : Auteur(s): L.A. Kovalchuk (Ukraine)

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