Résultats de la recherche

1. A risk-management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems

   measure in 2007 to ensure that significant adverse impacts of bottom fishing gear on Vulnerable Marine ... fine-scale rectangles (0.5° latitude by 1.0° longitude) or smaller can be used in the first instance ... . Temporal scales must be matched to the recovery scale of VMEs, which are probably in the order of many ... scientific research and data collection plans are in place and that risk mitigation measures are successful ... . Barthel, D. and J. Gutt. 1992. Sponge associations in the eastern Weddell Sea. Ant. Sci., 4 (2): 137–150 ... @aad.gov.au Abstract CCAMLR adopted a new conservation measure in 2007 to ensure that significant adverse ... rectangles (0.5° latitude by 1.0° longitude) or smaller can be used in the first instance. Temporal scales ... must be matched to the recovery scale of VMEs, which are probably in the order of many decades or even ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 177–193 : Auteur(s): Martin-Smith, K

2. Problems of population age structure determination of Euphausia superba Dana using an example from the Antarctic Peninsula area and adjacent waters

   examines the size structure of populations of E. superba in relation to their habitat, on the basis of an ... analysis of data collected by the author during the 1981 season in the region of the Antarctic Peninsula ... similar conditions. Hypotheses are formulated regarding the age and growth of E. superba; in addition ... , data are cited on the growth rates of krill in relation to feeding conditions, temperature factors and ... the eastern Scotia Sea. In "Physical oceanography. Deep Sea Res.", 37(5A), pp. 529-550. Fraser ... populations of E. superba in relation to their habitat, on the basis of an analysis of data collected by the ... author during the 1981 season in the region of the Antarctic Peninsula and the South Shetland Islands ... . Hypotheses are formulated regarding the age and growth of E. superba; in addition, data are cited on the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 227-270 : Auteur(s): Spiridonov, V.A.

3. Antarctic krill and ecosystem management – from Seattle to Siena

   approach developed in order to calculate a precautionary catch limit for the krill fishery in various ... Krill (WG-Krill). Particular prominence is also attached to the modelling approach developed in order ... to calculate a precautionary catch limit for the krill fi shery in various CCAMLR statistical areas ... over 500 000 tonnes in 1982 and a total of 6.1 million tonnes being taken between 1973 and 2001 ... stocks in the Southern Ocean as a whole (Kock, 1992). The latter raised serious concerns about the ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 175–212 : Auteur(s): Miller, D.G.M

4. An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands using CASAL

   representative of the main plateau, where juvenile fish are found, but are of relatively low intensity in effort ... compared to the commercial shots. In contrast, the commercial shots are very restricted in space ... , consisting of three main grounds. The model implemented in CASAL is a simple, single-sex, single-area ... population model, but spatial complexity in the fishery was modelled using separate fishing selectivity ... the main plateau, where juvenile fish are found, but are of relatively low intensity in effort ... compared to the commercial shots. In contrast, the commercial shots are very restricted in space ... , consisting of three main grounds. The model implemented in CASAL is a simple, single-sex, single-area ... population model, but spatial complexity in the fishery was modelled using separate fishing selectivity ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 1–34 : Auteur(s): Candy, S.G and A.J. Constable

5. Diet of the Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (Subarea 88.1)

   bottom longline in the Ross Sea during the 2001 and 2002 fishing seasons was analysed (3 937 and 5 426 ... stomachs examined respectively). Fish sampled in 2001 were caught at depths of 317 to 2 154 m and ranged ... from 58 to 190 cm in total length (TL). Fish sampled in 2002 were caught at depths of 815 to 1 623 m ... and ranged from 62 to 197 cm TL. A high proportion of stomachs were empty (34% in 2001 and 49% in 2002 ... longline in the Ross Sea during the 2001 and 2002 fi shing seasons was analysed (3 937 and 5 426 stomachs ... examined respectively). Fish sampled in 2001 were caught at depths of 317 to 2 154 m and ranged from 58 ... to 190 cm in total length (TL). Fish sampled in 2002 were caught at depths of 815 to 1 623 m and ... ranged from 62 to 197 cm TL. A high proportion of stomachs were empty (34% in 2001 and 49% in 2002) and ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 113–123 : Auteur(s): Fenaughty, J.M., D.W. Stevens and S.M. Hanchet

6. Joint Polish/American hydroacoustic survey of Elephant Island and the vicinity of King George Island, 1988

   in most areas covered by last year’s survey. The total biomass in the vicinity of Elephant Island was ... estimated from 120 kHz data to be 260k tonnes and that in the Bransfield Strait south of King George Island ... was 39k tonnes for a total of 299k tonnes in the combined areas. The estimated 200 kHz survey data ... were higher, giving 715k tonnes near Elephant Island and 83k tonnes in the Bransfield Strait. The ... hydroacoustic survey found a low krill abundance in most areas covered by last years survey. The total biomass ... in the vicinity of Elephant Island was estimated from 120 kHz data to be 260k tonnes and that in ... the Bransfield Strait south of King George Island was 39k tonnes for a total of 299k tonnes in the ... and 83k tonnes in the Bransfield Strait. The survey results apply to 7 453 n miles2 near Elephant ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 357–377 : Auteur(s): Macaulay, M.C.

7. An assessment of the merits of length and weight measurements of Antarctic krill Euphausia superba

   predictors of wet or dry weight in Antarctic krill Euphausia superba Dana are standardised with new data on ... biomass based on acoustic data. An alternative approach is examined in which length and additional ... biological data are assessed in terms of decreases in the residual variance of relationships. We have ... identified key sources of variability where relatively small increases in the effort of analysis result in ... ) Abstract Published relationships of various length measurements as predictors of wet or dry weight in ... alternative approach is examined in' which length and additional biological data are assessed in terms of ... decreases in the residual variance of relationships. We have identified key sources of variability where ... relatively small increases in the effort of analysis result in large improvements in the precision of ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 371-373 : Auteur(s): Morris D.J., J.L. Watkins, C. Ricketts, F. Buchholz, and J. Priddle

8. An index of per capita recruitment

   recruitment (PCR) is proposed such that where R 1 is the proportion of age-l animals sampled in year y and M ... age-l animals in the sample can be determined unambiguously. Normal, lognormal and uniform probability ... distributions of R I, and three levels of M were assumed in order to investigate the resulting distributions of ... years, and when all age-l animals spawn. These conclusions are insensitive to changes in the shape of ... where R1 is the proportion of age-l animals sampled in year y and M is the post-recruit mortality rate ... sample of the population is available; and (iv) the proportion of age-l animals in the sample can be ... M were assumed in order to investigate the resulting distributions of PCR. Distributions of PCR ... . These conclusions are insensitive to changes in the shape of the functional relationship between ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 179–196 : Auteur(s): Hewitt, R

9. Directed research. Antarctic Marine Living Resources (AMLR). A program development plan

   living resources in the ocean areas surrounding Antarctica. The program is in support of US participation ... in the Commission and Scientific Committee of the Convention for the Conservation of Antarctic Marine ... , among other things, that: “(A) The Director of the National Science Foundation, in consultation with the ... States Antarctic Program; (B) The Secretary of Commerce, in consultation with the Director of the ... conservation and management of the marine living resources in the ocean areas surrounding Antarctica. The ... program is in support of U.S. participation in the Commission and Scientific Committee of the Convention ... National Science Foundation, in consultation with the Secretary of State and the heads of other ... Secretary of Commerce, in consultation with the Director of the National Science Foundation, the Secretary ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 363-373 : Auteur(s): Office of Science and Technology, NMFS, NOAA, US Department of Commerce (USA)

10. Use of the Leslie stock depletion model for the assessment of local abundance of Patagonian toothfish (Dissostichus eleginoides)

    used to examine local patterns in catch per unit effort (CPUE) in the longline fisheries for Patagonian ... presents a re-working and synthesis of previous analyses to examine whether declines in CPUE can be ... in localised areas for periods of at least three days. The results suggest that there is greater ... potential for application of the model in some areas than in others, but in general there is no sufficiently ... , Chile Abstract The Leslie depletion model has been used to examine local patterns in catch per unit ... effort (CPUE) in the longline fisheries for Patagonian toothfish (Dissostickus eleginoides) around South ... analyses to examine whether declines in CPUE can be modelled using a linear regression of catch per hook ... against cumulative catch, when single vessels operate in localised areas for periods of at least three ...

    Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 55–77 : Auteur(s): Parkes, G., C.A. Moreno, G. Pilling and Z. Young

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