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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 : Автор(ы): Watkins, J.L., Brierley, A.S., Goss, C., Ward, P.
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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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): M. Belchier (Chair of SC-CAMLR)
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Spatio–temporal dynamics in maturation and spawning of Patagonian toothfish Dissostichus eleginoides on the subantarctic Kerguelen Plateau
Abstract: This study investigated maturation and spawning of Patagonian toothfish Dissostichus ... Sector of the Southern Ocean based on gonads and otoliths collected between years 2004–2015, and using ... histological analyses and calibration of macroscopic staging criteria. Dissostichus eleginoides at HIMI spawn ... throughout the late autumn and winter months of May–August, and spawning activity is concentrated on slopes ...
Meeting Document : WG-FSA-17/P04 : Автор(ы): P. Yates, P. Ziegler, D. Welsford, J. McIvor, B. Farmer and E.Woodcock
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Overview of global trade in toothfish (Dissostichus spp.)
GLOBEFISH unit, an analysis was conducted for the five-year period of 2012–2016 on the global trends of the ... . Captures the global trade of toothfish. The analysis showed that over this five-year period quantity of ... imports globally have seen an increase of 16.08% and exports have seen an increase in 15.54%. The average ... global unit value price of toothfish products has also shown an increase with imports increasing by 19.68 ...
Meeting Document : CCAMLR-XXXVI/BG/05 Rev. 1 : Автор(ы): CCAMLR Secretariat
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Informing the Scientific Committee about the revisions of the WSMPA proposal
Abstract: Following the submission of a first draft Conservation Measure for establishing a MPA ... would fall under the remit of, or might be of interest to participants at SC-CAMLR 2018: Unifying the ... previously two separate WSMPA parts into one coherent WSMPA by closing the gap on the eastern coast of the ... Antarctic Peninsula; Adjustment of the habitat of adult Antarctic toothfish in Statistical Subareas 48.6 and ...
Meeting Document : SC-CAMLR-XXXVII/BG/14 Rev. 1 : Автор(ы): Delegation of Germany
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Is our attempt to estimate biomass of Antarctic fish from a multi-species survey appropriate for all targeted species? Notothenia rossii in the Atlantic Ocean sector – revisited
Abstract: Notothenia rossii was the first target species of the fishery in the Southern Ocean ... . The species has been heavily fished at the beginning of the 1970’s. The closure of the fishery for ... this species was one of the first conservation measures CCAMLR adopted in 1985. Fish biomass within a ... CCAMLR Subarea or part of a subarea is commonly estimated targeting a number of species including N ...
Meeting Document : WG-FSA-03/12 : Автор(ы): K.-H. Kock (Germany), M. Belchier (United Kingdom) and C.D. Jones (USA)
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