Résultats de la recherche

1. The Ross Sea cephalopod community: insights from stable isotope analysis

   identifications. Generally, squid clustered into two distinct isotopic groups, one with depleted isotope ... . Size (and hence age) was an important factor in explaining variation in both beak and muscle tissue ... Abstract:  Based on mass balance modeling and mixed trophic impact analysis, cephalopods have been ... identified as having relatively high importance in the food-web of the Ross Sea. However, information on the ...

   Meeting Document : WG-EMM-12/55 : Auteur(s): D.R. Thompson, M.H. Pinkerton, D.W. Stevens (New Zealand), Y. Cherel (France), S.J. Bury (New Zealand)

2. Attribtuion of acoustic echoes to squid in the south Atlantic

   order to characterise an acoustic signature that may be used to identify this species of squid ... is an advantage for making a positive identification of echoes. An initial review of the echocharts ... area at a depth of 25 m for 12 hours and caught an estimated 2 300 M. hyadesi (Table 2). No other ... reproduced as Figure 2. Most of the haul (the first seven hours) was through an area notable for the ... 02:lO 25 12:lO 2 0 01:30 100 02:25 130 01:45 80 00:30 20 01:55 150 01:30 60 ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 259–271 : Auteur(s): Goss, C., P. Rodhouse, J.L. Watkins and A.S. Brierley

3. Seabird research at Cape Shirreff, Livingston Island, Antarctica, 2006/07

   nine year means for these parameters at our study site. The chinstrap penguin breeding population has ... been declining for the past seven years and is at its lowest size in the 10 years of study. Chinstrap ... higher than both last season and the past 10 year mean. Author(s):  R. Orben, S. Chisholm, A. Miller and ... lowest population size in the 10 years of census data. The number of diet samples containing fish was the ...

   Meeting Document : WG-EMM-07/P1 : Auteur(s): R. Orben, S. Chisholm, A. Miller and W.Z. Trivelpiece (USA)

4. AGE AND GROWTH OF SPINY ICEFISH, CHAENODRACO WILSONI REGAN, 1914, OFF JOINVILLE-D'URVILLE ISLANDS (ANTARCTIC PENINSULA)

   . Age at sexual maturity was estimated to be about 2 years for females and 2.5 years for males. Compared ... January 2007. A total of 218 specimens were selected for the study, consisting of 120 females and 98 males ... estimated age range was 1-5 for males and 1-4 for females of C. wilsoni. Applying the von Bertalanffy growth ... function to the age-length data, a growth curve was obtained for each sex. The estimated values of VB ...

   Meeting Document : WG-FSA-08/33 : Auteur(s): M. La Mesa, A. De Felice (Italy), C.D. Jones (USA) and K.-H. Kock (Germany)

5. A quantified Bayesian Maximum Entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the CCAMLR-2000 Survey

   area. Density values for the unsurveyed off-transect portions of the survey area were inferred, and ... thus values for total biomass across the survey area, and within individual small-scale management ... estimated due to the sparseness of data in these regions. The MaxEnt formalism allows an objective choice of ... the parameters of the estimation method, and hence an objective choice of the most probable ... et al. 100 and Sibisi, 1990; Gull and Skilling, 1991; Skilling, 1991; see Sivia, 1996 for an ... which expresses a preference for smoothness (since an equal distribution of krill across all cells has ... particular application of the MaxEnt method. In astrophysics, for example, the data from an instru- ment may ... simply an approximation to a Gaussian point spread func- tion. It is necessary to choose a width for ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 97–116 : Auteur(s): Heywood, B.G., A.S. Brierley and S.F. Gull

6. The Continuous Plankton Recorder in the Southern Ocean: a comparative analysis of zooplankton communities sampled by the CPR and vertical net hauls along 140°E

   each of 19 stations: 0–20, 20–50, 50–100 and 100–150 m. A Continuous Plankton Recorder (CPR) was ... patterns. Species richness and diversity increased with depth, and were lowest for CPR samples. Conversely ... , dominance decreased with depth and was highest for CPR samples. Evenness was similar for all sample groups ... 2001. NORPAC nets were deployed during a CTD transect on the southern leg, sampling four depth zones at ...

   Meeting Document : WS-BSO-07/P5 : Auteur(s): Hunt, B.P.V and G. Hosie

7. Évaluation du cadre réglementaire de la CCAMLR et des recommandations visant à rationaliser le statut des pêcheries

   information requirements, and the process for obtaining that information, for all fisheries targeting ... pro-forma from CM 24-01 (Annex A, Format 2) and make it an annex to CM 41-01 noting that this would ... Committee Title:  Review of the CCAMLR regulatory framework and recommendations for streamlining fishery ... in recent years in relation to research fishing in exploratory fisheries, closed fisheries and other ...

   Meeting Document : CCAMLR-XXXIV/17 Rev. 1 : Auteur(s): Chair of the Scientific Committee

8. Fishery monitoring and closure procedures

   interpretation and application of procedures to monitor and forecast closures in CCAMLR fisheries in the 2018/19 ... Workflow Status:  Content Approved Document Release Consent:  Yes Delegation responsibility for releasing ... Abstract:  This document provides summary advice to the Commission on the Secretariat’s ...

   Meeting Document : CCAMLR-38/BG/12 : Auteur(s): CCAMLR Secretariat

9. Mackerel icefish ecological indices

   Abstract:  Mackerel icefish have been harvested in the CCAMLR Region for over thirty years. In the ... fur seals and several avian species. These attributes make them suitable for consideration within the ... Atlantic sector of the Southern Ocean they feed preferentially on krill and are themselves preyed upon by ... : Standing Stock, Cohort Strength and Recruitment, Natural Mortality, Length at Age 1+ and 2+ years ...

   Meeting Document : WG-EMM-03/42 : Auteur(s): I. Everson (United Kingdom), K.-H. Kock (Germany) and A.W. North (United Kingdom)

10. Fishery Report: Dissostichus eleginoides Heard Island (Division 58.5.2)

    able to catch older fish (>25 years) than trawl gear which has high selectivity for 6-year-old fish ... effectively declining to zero for fish older than 20 years. The length-frequency distribution for the ... management advice 8.1 Conservation measures 20. The limits on the fishery for D. eleginoides in Division ... season was 2 500 tonnes (Conservation Measure 41-08) for the period from 1 December 2007 to 30 November ...

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