Resultados de la búsqueda
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REVIEW OF CCAMLR ACTIVITIES ON MONITORING MARINE DEBRIS IN THE CONVENTION AREA
Abstract: CCAMLR Members monitor beached debris, entanglement of marine mammals, marine debris ... associated with seabird colonies and animals contaminated with hydrocarbons at a number of sites, primarily ... in Area 48. Overall non-fishing debris items (mostly packaging items) have made up the majority of ... debris reported from monitoring sites. Relatively large amounts of fishing items have been reported at ...
Meeting Document : WG-IMAF-09/08 : Autor(es): Secretariat
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CONTINUING CCAMLR’S FIGHT AGAINST IUU FISHING FOR TOOTHFISH EXECUTIVE SUMMARY OF THE REPORT BY TRAFFIC INTERNATIONAL AND WWF AUSTRALIA
Abstract: Despite the continuous efforts of CCAMLR to fight Illegal, Unregulated and Unreported ... (IUU) fishing, there remains evidence of IUU activities in the Convention area. This paper is the ... executive summary of a recent, soon to be published report produced by TRAFFIC International in conjunction ... with WWF Australia that presents a trade-based assessment of toothfish catch for the period of 2003 ...
Meeting Document : CCAMLR-XXVII/BG/38 : Autor(es): Submitted by IUCN
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INVESTIGATING LENGTH AT MATURITY OF ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) BASED ON SCIENTIFIC OBSERVERS’ DATA
Abstract: Through generalised linear models, the gonadosomatic index of Antarctic toothfish in ... the Ross Sea region was shown to vary with latitude, length and month. Limitations of the scientific ... observers’ staging data were highlighted and GSI is recommended as a better indicator of maturity status in ... Antarctic toothfish. Reports of histological analyses of a small number of Antarctic toothfish showed ...
Meeting Document : WG-FSA-08/48 : Autor(es): S. Mormede, S. Parker and P. Grimes (New Zealand)
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Acoustic discrimination of southern ocean zooplankton
Abstract: Acoustic surveys in the vicinity of the sub-Antarctic island of South Georgia revealed ... the existence of a number of horizontally extensive yet vertically discrete scattering layers in the ... upper 250 m of the water column. These layers were fished with a LonghurstHardy plankton recorder (LHPR ... ) and a multiple-opening 8 m2 rectangular mid-water trawl (RMT8). Analysis of catches suggested that ...
Meeting Document : WG-EMM-97/54 : Autor(es): Watkins, J.L., Brierley, A.S., Goss, C., Ward, P.
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Management of C. gunnari in Subarea 48.3
Abstract: The management of Champsocephalus gunnari at South Georgia is complicated by the ... likelihood of substantial periodic variation in natural mortality rates. These may be associated with ... increased consumption of icefish by Antarctic fur seals in years of poor krill availability. Thus natural ... mortality of icefish may, in some years, increase by a large factor (assumed here to be 4) declining to ...
Meeting Document : WG-FSA-97/38 : Autor(es): Kirkwood, G.P., Parkes, G.B., Everson, I., Agnew, D.J.
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Modeling the growth dynamics of Antarctic krill
examine the growth dynamics of Antarctic krill, Euphausia superba. A system of coupled, ordinary ... differential equations was developed to describe the growth of krill between 2 and 60 mm. The metabolic ... resulted in the transfer of individuals to the next highest size class (growth), whereas negative net ... of model coefficients were constructed from an analysis of field and laboratory measurements provided ...
Meeting Document : WG-EMM-96/68 : Autor(es): Lascara, C.M., Hofmann, E.E.
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Contribution to the early life history of Channichthyidae from the Bransfield Strait and South Georgia
Abstract: Age and early growth of 5 species of Channichthyidae / Champsocephalus gunnari ... during FIBEX /February-April 1981/ and SIBEX /December-January 1983/84/. Additional material- larvae of ... to March 1980 /Fig. 1/. Length frequency distributions of the above-named species were usually ... patterns of microincrements, discernible in these otoliths under a light microscope, in most cases are ...
Meeting Document : CCAMLR/86/FA/08 : Autor(es): W. Ślósarczyk (Poland)
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A new bathymetric compilation for the South Orkney Islands, Antarctic Peninsula (49°–39°W to 64°–59°S): insights into the glacial development of the continental shelf
Abstract: We present a new, high resolution (300 m) bathymetric grid of the South Orkney Islands ... and surrounding continental shelf, northeast of the Antarctic Peninsula. The new grid, derived from a ... compilation of marine echo-sounding data improves previous regional bathymetric representations and helps to ... visualise the morphology of the shelf in unrivalled detail. The compilation forms important baseline ...
Meeting Document : WG-EMM-14/P01 : Autor(es): W.A. Dickens, A.G.C. Graham, J.A. Smith, J.A. Dowdeswell, R.D. Larter, C.-D. Hillenbrand, P.N. Trathan, J.E. Arndt and G. Kuhn
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Investigating the uncertainty of age determinations for Patagonian toothfish (Dissostichus eleginoides) and the implications for stock assessment
Abstract: We revised the method of Candy et al. (2012) to estimate the ageing error matrix ... (misclassification matrix) to address some issues regarding true ages not being the mode at the extremes of the ... matrix and a lack of smoothness in the probabilities for ages above 25 years. Positive errors now ... greater than the plus group are incorporated into the final row of the misclassification matrix. We ...
Meeting Document : WG-FSA-14/46 : Autor(es): P. Burch, P. Ziegler, W. de la Mare and D. Welsford (Australia)
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Development of a five-year work plan for the CCAMLR Scientific Committee
, paragraphs 13.8 to 13.20). It was agreed that the work should be led by the Chair of the Scientific Committee ... with input from the conveners of its working groups and that it should be made available for ... the first stage in the development of the five-year work plan and draws on recommendations arising ... plan has used the template of the five-year work plan of the ATCM CEP and considers a range of work ...
Meeting Document : WG-EMM-17/02 : Autor(es): M. Belchier (Chair of SC-CAMLR)