Resultados de la búsqueda

1. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2013–14

   . As in recent years, the remaining catches came mainly from SSRUs 88.1C, 88.1J, and 88.2H ... 12 years with a slight decline in the past two years. Length frequency distributions of Antarctic ... Abstract:  This report summarises the timing, depth, and location of fishing together with the ... biological aspects and catch of Antarctic toothfish up to an including the 2014 season. In 2014, the Ross Sea ...

   Meeting Document : WG-FSA-14/52 : Autor(es): M. Stevenson, S. Hanchet, S. Mormede and A. Dunn (New Zealand)

2. Intra-annual variability in the density of Antarctic krill (Euphausia superba) at South Georgia, 2002–2005: within-year variation provides a new framework for interpreting previous ‘annual’ estimates of krill density

   consistently over all three years, was detected. Krill densities in winter were predominantly low (mean = 18.7 ... g m –2, SD = 24.3), but had risen substantially by summer in each year (mean = 89.5 g m –2, SD ... to the perceived between-year variation in krill density arising from previous summer surveys in the ... the regression-predicted within-year variation. Years that stand out for markedly low krill density ... et al. 30 summer) in the light of repeated observations of within-year changes to address the ... a ‘low’ or ‘high’ krill year. In general terms, this was around ±35 g m–2 in summer and ±20 g m–2 ... over all three years, was detected. Krill densities in winter were predominantly low (mean = 18.7 g m ... ta in ed b et w ee n 20 / 11 / 20 05 a nd 20 / 12 / 20 05 . D ep lo ym en t D ep ...

   Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 27–41 : Autor(es): Saunders, R.A., A.S. Brierley, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein and D.G. Bone

3. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2011/12

   Abstract:  The exploratory fishery for Dissostichus spp. has now been operating for 16 years in ... Subarea 88.1 and for 10 years in Subarea 88.2. This report summarises the timing, depth, and location of ... last 2–3 years. This appears to be at least partly a result of vessels carrying out more fishing in ... fishing together with the catch of Dissostichus spp. and bycatch species by year for the period 1997–98 to ...

   Meeting Document : WG-FSA-12/42 : Autor(es): M.L. Stevenson ,S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)

4. Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons

   techniques, from 1991 back to 1977. The predicted age structure, dominated in recent years by the 1987 year ... . Breakdown in the credibility of the VPA results in most recent years is attributed to the invalid assumption ... -class (1 year olds in 1988), was quite robust, despite the use of various combinations of survey and ... proportion of 5 year olds, which was not observed during the survey on Falklands Protector in January 1992 ... . The predicted age structure, dominated in recent years by the 1987 year-class (1 year olds in 1988 ... recent years dominated by the year class spawned in late 1985/86, recruiting as 1 year olds in 1987/88 ... produced much lower estimates of abundance in the most recent years than MAFF5. The picture of year class ... year. Similarly in other years the assumed commercial age distribution will depend upon where the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 49–79 : Autor(es): Parkes, G.

5. BIOLOGICAL PROSPECTING IN THE SOUTHERN OCEAN, A ROLE FOR CCAMLR

   some CCAMLR provisions, in particular the Convention’s reporting requirements outlined in Article 20 ... established to examine the issue of Biological Prospecting in the Antarctic Treaty Area. Although increasingly ... used in International legal and policy frameworks addressing genetic resources, the term bioprospecting ... is not defined in any international convention or agreement. Indeed, there remains a range of views ...

   Meeting Document : CCAMLR-XXVII/BG/36 : Autor(es): Submitted by IUCN

6. Changes in the fish biomass around Elephant Island (Subarea 48.1) from 1976 to 1996

   from 1978/79 to 1988/89, with most of the commercial harvesting taking place in the first two years of ... Paper Title:  Changes in the fish biomass around Elephant Island (Subarea 48.1) from 1976 to 1996 ... Abstract / Description:  Finfish stocks in the Antarctic Peninsula region (Subarea 48.1) were exploited ... the fishery. Results of bottom trawl surveys conducted by Germany in the vicinity of Elephant Island ... class; fish from this year class were 20 to 25 cm long in January/February 1976 and 30 to 37 cm in ... . Changes in the Fish Biomass around Elephant Island 10 20 30 40 50 Length (cm) Length (cm) Length ... , with most of the commercial harvesting taking place in the first two years of the fishery. Results of ... harvesting occurring in the first two years of the fishery (reviews in Kock, 1991,1992; Agnew and Nicol ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 165–189 : Autor(es): Kock, K.-H

7. Preliminary results of investigations of the Federal Republic of Germany on Notothenia rossii marmorata (Fischer, 1885) in January/February 1985

   rebuild the stock around South Georgia might be successful. Although reported catches in recent years have ... Notothenia rossii marmorata (Fischer, 1885) in January/February 1985 Abstract / Description:  A bottom trawl ... survey carried out by FRV " Walther Hervig " in January/February 1985 was used to collect ... probably still less than 10% of the pristine stock, Mean length in the catches has only slightly increased ... around South Georgia might be successful. Although reported catches in recent years have been low, N ... that estimated by SGHERBICH (1976) in the first years of commer- cial exploitation. Our do.to. arc ... in the order oI 43 - 46 cm (see ANON., 1984, p. 30). IL can thus be assul'\ed that 3 codenyears) in Notothenia russii ~outh ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 33-57 : Autor(es): Kock, K.-H.

8. Towards the development of a management plan for mackerel icefish (Champsocephalus gunnari) in Subarea 48.3

   years of poor krill availability. Thus natural  ortality of C. gunnari may, in some years, increase by a ... gunnari) in Subarea 48.3 Abstract / Description:  Management of the mackerel icefish (Champsocephalus ... gunnari) at South Georgia is complicated by the likelihood of substantial periodic variations in natural ... mortality rates. These may be associated with increased consumption of C. gunnari by Antarctic fur seals in ... assumed to be independent between years and equally likely to occur in each year. Results of a number of ... -year projection period, in only one-third of these was the spawning stock level less than 20% of the ... rates. These may be associated with increased consumption of C. gunnari by Antarctic fur seals in years ... of poor krill availability. Thus natural mortality of C. gunnari may, in some years, increase by a ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 63–77 : Autor(es): Agnew, D.J., I. Everson, G.P. Kirkwood and G.B. Parkes

9. Spatial overlap of krill-dependent predators and krill fishery catches and a proposal for subdivision of catch limits in Subarea 48.1

   during the winter period, especially in the Bransfield Strait. Across years, predator distributions ... overlap in Area 48, with particular emphasis on Subarea 48.1. We used habitat utilization data for ... restricted to the last 5 years, since this time period emphasizes the shift toward autumn and winter fishing ... in Subarea 48.1. In general, overlap of summer and winter foraging habitats with krill catches in ...

   Meeting Document : WG-EMM-14/36 : Autor(es): J.T. Hinke, M.E. Goebel (USA), M.M. Santos (Argentina), P.N. Trathan (UK), W.Z. Trivelpiece and G.M. Watters (USA)

10. Fish distribution and biomass in the Heard Island zone (Division 58.5.2)

    Paper Title:  Fish distribution and biomass in the Heard Island zone (Division 58.5.2) Abstract ... . In order to assess the potential of this area for commercial fishing, and to obtain some preliminary ... distribution, abundance and biology of the most important species, covering a number of years and seasons. Five ... gunnari, but total abundance varied greatly between years. Channichthys rhinoceratus has a similar ... densities, but showed u p to ten-fold variability in density over the three years of sampling, and these ... variations were not in phase with each other. Duhamel (1991a) has demonstrated a three-year cycle of ... variations in abundance occur, as in C. gunnari, because of the greater number of year-classes available ... CCAMLR Science, Vol. 2 (1995): 1-20 FISH DISTRIBUTION ...

    Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 1–20 : Autor(es): Williams, R. and W.K. de la Mare

Páginas