Resultados de la búsqueda

1. Mackerel icefish Champsocephalus gunnari in the diet of upper trophic level predators at South Georgia: implications for fisheries management

   fisheries. Data on the frequency and size structure of C. gunnari in the diet of Antarctic fur seals ... . gunnari population. C. gunnari occurred in 20 – 40 % of scats from Antarctic fur seals and comprised 48 ... dominant mode at 180-200 mm total length (1+ age class), with strong cohorts entering the population in ... 1993, 1996, 1999 and 2001. A recruitment index based on the contribution by mass of the 1+ age-class in ...

   Meeting Document : WG-FSA-03/74 : Autor(es): K. Reid, S. Hill and T. Diniz (United Kingdom)

2. Preliminary assessment of Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a survey in April–May 2003

   1999. A minor revision to the recruitment series resulted in a relatively small reduction in the ... term yields. Further work is required to evaluate the implications of current uncertainty in the rate ... design of the annual survey indicated some variability in survey catchability between years and suggest ... 2003 season saw the operation of the first commercial long line vessel in 58.5.2. An initial comparison ...

   Meeting Document : WG-FSA-03/33 : Autor(es): A.J. Constable, C.R. Davies, R. Williams and T. Lamb (Australia)

3. A feasibility study for stock assessment of D. mawsoni in the Ross Sea (Subares 88.1 and 88.2) using a tag and recapture experiment

   purpose of stock assessment of the Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea. An ... exploratory fishery for D. mawsoni has been operating since 1997-98. Catches have increased from ~40 t in 1997 ... -98 to nearly 1800 t in 2002-03. Although some Patagonian toothfish (D. eleginoides) are taken in the ... 90% D. mawsoni) have been tagged and released in the area, from vessels operating in the exploratory ...

   Meeting Document : WG-FSA-SAM 03/10 : Autor(es): K.J. Sullivan, N.W.McL. Smith, J. McKenzie and S.M. Hanchet (New Zealand)

4. Monitoring marine debris and its impact on marine living resources in Antarctic waters

   of Antarctic Marine Living Resources (CCAMLR) in response to a request from CEP-IV for information on ... actions taken by CCAMLR on marine debris from fishing vessels, especially in relation to compliance with ... level of marine debris and its impact on marine living resources in Antarctic waters. Long-term programs ... and seabirds, ingestion by seabirds of plastic materials and entanglement of marine mammals in fishery ...

   Meeting Document : SC-CAMLR-XX/BG/16 : Autor(es): Secretariat

5. Modelling the dynamics of krill populations in the Antarctic Peninsula region

   estimates of recruitment to the population can be used to model in detail interannual variation in the ... dynamics of krill are used to assess to what extent they can explain the observed changes in the density of ... the population in the Antarctic Peninsula region. Two approaches have been explored: the first uses ... (?43% per annum). In both cases however the mortality rate estimate is poorly constrained in a range ...

   Meeting Document : WG-EMM-99/56 : Autor(es): E.J. Murphy (United Kingdom), A. Constable (Australia) and D. Agnew (United Kingdom)

6. Investigations on midwater trawling for krill (Euphausia superba) in the Southern Ocean

   Abstract:  Results of harvesting operations for Antarctic krill (Euphausia superba) in Fishing ... Area 58 in the Indian Ocean Sector of Southern Ocean, during the First Indian Antarctic Krill ... Expedition (27 December 1995- 10 March 1996) on board FORV Sagar Sampada are summarised in this paper. 18 ... hauls were made using a 2.5 m Isaacs-Kidd Midwater Trawl (IKMT) in the area 59°00’-61°08' S lat; 30 ...

   Meeting Document : WG-EMM-98/38 : Autor(es): M.R. Bhoopendranath, M.K.R. Nair, A. Anrose and V.C. George (India)

7. Concordance of inter-annual fluctuations in densities of krill around South Georgia and Elephant Islands: biological evidence of same-year teleconnections across the Scotia Sea

   Abstract:  Acoustic estimates of the densities of Antarctic krill, Euphausia superba, in areas ... simply have been a function of differences in survey and data analysis techniques used at each site. More ... both SG and El. There was no apparent lag in changes in abundance at each site, and ranked between-year ... gradients of change in abundance at both locations were significantly correlated. These pronounced ...

   Meeting Document : WS-AREA 48-98/11 : Autor(es): A.S. Brierley (UK), D.A. Demer, R.P. Hewitt (USA) and J.L. Watkins (UK)

8. Depth distribution and spawning pattern of Dissostichus eleginoides over the winter period in Subarea 48.3

   Abstract:  Trends in mean length and maturity stage of toothfish were examined using observer data ... from the 1998, 1997 and 1996 toothfish seasons. Toothfish are distributed down the shelf slope in ... statistically significant pattern of changing mean length at depth with month was found in both 1997 and 1998 ... . Examination of maturity data suggests that in addition to a major spawning event in late July/August, there ...

   Meeting Document : WG-FSA-98/58 : Autor(es): D.J. Agnew, K. Kerkieta, L. Heaps, C. Jones, J. Pearce and A. Watson (United Kingdom)

9. Demonstrating global leadership in marine spatial protection

   Protected Areas at the Institut Paul Emile Victor (IPEV) in Brest, France was held with this imminent ... deadline in mind. While there were many positive outcomes from the workshop, significant work remains to be ... done in a short time. Fortunately, as the report of the workshop recognizes, experience demonstrates ... that progress in developing MPAs can be achieved relatively quickly if there is a dedicated effort to ...

   Meeting Document : CCAMLR-XXX/BG/20 : Autor(es): Submitted by ASOC

10. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2010–11

    in Subarea 88.1 and for ten years in Subarea 88.2. This report summarises the timing, depth, and ... 1997–98 to 2010–11. During the 2010–11 fishing year most of the catch in Subarea 88.1 came from the ... slope SSRUs 88.1H and 88.1I, and SSRU 88.1K. About 63% of the catch limit in the north was taken from ... time in each of the fisheries showing no trend. There is no evidence of any truncation of the overall ...

    Meeting Document : WG-FSA-11/45 : Autor(es): M.L. Stevenson, S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)

Páginas