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1. New data on spawning, hatching and growth of the Kerguelen Islands Champsocephalus gunnari shelf stock

   programme allows to identify each year, both from the ichthyoplanktonic surveys and bottom trawlings, an ... Abstract:  Combined studies on the inner shelf and outer shelf of the Kerguelen islands (1989/90 ... to 1992/93) provides new informations about Champsocephalus gunnari stock. An inner shelf quaterly ... in the samples along the study. It would explain the previouly observed three years cycle. Spawners ...

   Meeting Document : WG-FSA-94/9 Rev. 1 : Автор(ы): G. Duhamel (France)

2. Fishing intensity of the Soviet fleet in krill fisheries in the southern Atlantic (Subareas 48.2 and 48.3)

   (Subareas 48.2 and 48.3) Abstract / Description:  This paper provides an assessment of the impact of the ... Antarctic ecosystem. Krill are dominant primary consumers and constitute an important food source for ... ; Butterworth et al., 1994; Boyd, 2002a). This topic was investigated for those years when there was the ... mean values of CPUE over the four years of this analysis are shown in Figure 4 for all Soviet vessels ... further. This makes an even stronger case for the estimated removal intensity being of minor importance ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 15–35 : Автор(ы): Kasatkina, S.M. and V.F. Ivanova

3. Bacteria and detritus: Trophic modelling of the Ross Sea

   column detritus for the model is shown in Figure 6c. This has an average value of 16.4 gC m-2. 0 20 ... Antarctic Circumpolar Current and Marginal Ice Zone. The values (range) they found for bacteria were P/B=20 ... 30%. The comparison suggests that the values used in the model for biomass and energetics of benthic ... A M J a 0 5 10 15 20 25 30 35 40 La bi le D O C (g C m -2 ) J A S ...

   Document : Site Section: Publications

4. On the intensity of sampling krill trawl catches

   uses actual krill length-frequency data in an attempt to address the problem of the determination of ... be discerned (e.g., length-with-age). At present, and in the interests of both statistical rigour and ... stages; • for most purposes a minimum sample size of at least 100 animals/trawl is necessary to obtain ... 120 100 90 80 70 60 50 40 30 20 10 30 35 i i i i i i i i i i i i i ... confidence limits (90%). To estimate the minimum detectable difference in length for a given sample size in ... WG-KRILL-90/27 ON THE INTENSITY OF SAMPLING KRILL TRAWL ... CATCHES D.G.M. Miller* Abstract This paper uses actual krilllength-frequency data in an attempt to ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 29–48 : Автор(ы): Miller, D.G.M.

5. A re-analysis of the Kerguelen Shelf and Skiff Bank stocks of Champsocephalus gunnari

   for the Age 2 Kerguelen Shelf stock, an order of magnitude lower than that calculated from a biomass ... -frequency data for the years 1981 to 1990. Cohort analysis yielded a Stock Biomass of 22 711 tonnes in 1988 ...

   Meeting Document : WG-FSA-90/17 : Автор(ы): G. Duhamel (France) and D.J. Agnew (Secretariat)

6. The recent decline in recruitment of Gobionotothen gibberifrons in the South Shetland Islands (CCAMLR Subarea 48.1)

   Shetland Islands ceased after the 1989/90 season. One of the larger and most abundant species in the area ... ’s. In 2012, the proportion of immature fish (<30 cm) in the population was less than 10 ... caused a number of years of very low recruitment around Elephant Island and the lower South Shetland ...

   Meeting Document : WG-FSA-12/20 : Автор(ы): K.-H. Kock (Germany) and C.D. Jones (USA)

7. A PRELIMINARY BALANCED TROPHIC MODEL OF THE ECOSYSTEM OF THE ROSS SEA, ANTARCTICA, WITH EMPHASIS ON APEX PREDATORS

   toothfish. A survey of the available literature and both published and unpublished data provided an initial ... Sea as a step towards investigating ecosystem effects of the fishery for Antarctic toothfish ... (Dissostichus mawsoni). The model has 30 trophic groups representing all the major biota of the Ross Sea. Many ... , exports), energetics (growth, reproduction, consumption), and trophic linkages (diets, key predators) for ...

   Meeting Document : WG-EMM-08/42 : Автор(ы): M.H. Pinkerton, J.M. Bradford-Grieve and S.M. Hanchet (New Zealand)

8. SC-CAMLR-XXIV

   /BG/29 Ad Hoc WG-IMAF Conveners’ summary for the Scientific Committee 2005 SC-CAMLR-XXIV/BG/30 A ... Provisional Agenda for the Twenty-fourth Meeting of the Scientific Committee for the Conservation of Antarctic ... Marine Living Resources SC-CAMLR-XXIV/02 Provisional Annotated Agenda for the Twenty-fourth Meeting of ... the Scientific Committee for the Conservation of Antarctic Marine Living Resources SC-CAMLR-XXIV/03 ...

   Meeting

9. Growth and natural mortality of Patagonian rockcod (Patagonotothen guntheri shagensis) from Shag Rocks shelf

   for Patagonian rockcod (Patagonotothen guntheri shagensis) were calculated by using age and length ... of natural mortality M=0.8 was used in calculations and the optimal age and length for harvesting ... Patagonian rockcod were found to be 2.5 years and 12.6 cm. File:  09-Shilbanov.pdf ... the optimal age and length for harvesting Patagonian rockcod were found to be 2.5 years and 12.6 cm ... 30 g weight and age of 2 to 3 years. The sex ratio of fish is actually the same in all size classes ... . The calculations were made starting with modal age class of 3 years (Figure 2). For recording the ... , % 60 -40 20 n=1470 2. 3 Lt 5 6 Age, years Figure 2: Age composition of P.g. shagensis in ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 111–121 : Автор(ы): Shlibanov, V.I.

10. Further development of pairwise tag detection performance index and its application to the stock assessment of toothfish in the Ross Sea fishery

    algorithm, more than 90% of all tags released and recaptured were selected for inclusion. We recommend this ... Abstract:  Tag release and recapture data are used in integrated age-structured stock assessments ... ) could lead to an over-estimate of the stock biomass. In this paper we develop further an index of vessel ... -specific tag detection performance for the Ross Sea fishery using a case-control methodology which controls ...

    Meeting Document : WG-SAM-13/34 : Автор(ы): S. Mormede (New Zealand)

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