Résultats de la recherche

1. 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 : Auteur(s): S. Mormede, S. Parker and P. Grimes (New Zealand)

2. 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 : Auteur(s): Watkins, J.L., Brierley, A.S., Goss, C., Ward, P.

3. 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 : Auteur(s): Kirkwood, G.P., Parkes, G.B., Everson, I., Agnew, D.J.

4. 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 : Auteur(s): Lascara, C.M., Hofmann, E.E.

5. The diet of Antarctic fur seals Arctocephalus gazella during the breeding season at Heard Island

   Heard Island fed mainly on fish with an average 95.2% of scats in monthly collections containing fish ... remains. Pelagic myctophids constituted more than 50% of fish taken by fur seals at the beginning of the ... summer season and again at the end when there was an influx of non-breeding male seals. During the middle ... period from October to December, fish from the surrounding shelf area comprised the bulk of the diet ...

   Meeting Document : SC-CAMLR-VIII/BG/53 : Auteur(s): Delegation of Australia

6. 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 : Auteur(s): W. Ślósarczyk (Poland)

7. 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 : Auteur(s): 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

8. Infectious diseases of Antarctic penguins: current status and future threats

   alterations due to climate change: the Western Antarctic Peninsula, the Ross Sea, and coastal regions of East ... Antarctica. From previous reports we know that penguin species are highly susceptible to a number of ... infectious diseases. The number of investigations into infectious diseases of penguins has continued to ... increase over the last 50 years.  However, issues of data not being published and a lack of formal risk ...

   Meeting Document : WG-EMM-14/53 : Auteur(s): W.W. Grimaldi, P.J. Seddon, P.O.B. Lyver, S. Nakagawa and D.M. Tompkins (New Zealand)

9. 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 : Auteur(s): P. Burch, P. Ziegler, W. de la Mare and D. Welsford (Australia)

10. East Antarctica Planning Domain MPA Planning Reference Document #3: Draft MPA Report Part 3 – Research and Monitoring (update of SC-CAMLR-IM-I/BG/01)

    Abstract:  This paper is Part 3 of an update of the draft MPA Report for the East Antarctica ... three parts is provided in SC-CAMLR-XXXIII/BG/38. This paper provides a more detailed account of ... research and monitoring in the East Antarctica Planning Domain and how this can form the basis of a ... research and monitoring program to support the East Antarctica Representative System of Marine Protected ...

    Meeting Document : SC-CAMLR-XXXIII/BG/40 : Auteur(s): Delegations of Australia, France and the European Union

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