Résultats de la recherche

1. Indices of prey availability near the Seal Island CEMP site: 1990 to 1996

   / Description:  Four indices of prey availability are calculated from surveys conducted in the vicinity of the ... Paper Title:  Indices of prey availability near the Seal Island CEMP site: 1990 to 1996 Abstract ... Seal Island CEMP site during the austral summers of 1990 to 1996. The indices are measures of average ... surveys each year were subsampled to include the foraging range of predators breeding at Seal Island ... availability are calculated from surveys conducted in the vicinity of the Seal Island CEMP site during the ... pattern and energy value. In this paper, indices are proposed for the first four of these aspects of ... sources. Approximately 50 000 km2 of sea surface area in the northern portion of the South Shetland ... , in press (a,b)). Echoes from a 120-kHz transducer, towed 5 m below the surface of the water (1992 ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 37–45 : Auteur(s): Hewitt, R.P., G. Watters and D.A. Demer

2. Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined with various codends

   . It was found that the selectivity properties of twine codends are unsatisfactory in the case of ... Paper Title:  Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined ... , especially Scotia Sea icefish and South Georgia icefish the determination of a proper mesh size of trawls ... used in fishing for them requires further research. It should first of all cover twine codends with a ... of the difference in cm between the mean length of fish for selectivity levels 75 and 25%; - 8 ... % selectivity level, A = mean mesh size in the codend determined for a given stage of investigations (wet ... selectivity properties of twine codends are unsatisfactory in the case of Antarctic icefish, burnphead ... Sea icefish and South Georgia icefish the determination of a proper mesh size of trawls used in ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 1-48 : Auteur(s): Zaucha, J.

3. A brief exploitation of the stone crab Lithodes murrayi (Henderson) off south west Africa, 1979/80

   crabs were present in small numbers over a much larger area. Over 90 per cent of the fishing effort was ... applied in this area of high concentration, accounting for almost 95 per cent by mass of the total catch ... . Although the catch rate declined, the mean size of exploitable crabs and of undersize crabs stayed ... uneconomic level. The extent of the L. murrayi grounds is examined on the basis of catch-per-unit-effort data ...

   Meeting Document : WS-CRAB-93/21 : Auteur(s): R. Melville-Smith (South Africa)

4. Progress report of the CEMP Special Fund overwinter penguin tracking project

   the CEMP Special Fund in 2015/16. With the assistance of the Secretariat, we purchased 150 ARGOS-based ... Abstract:  We provide a brief update on the progress of our project “Tracking the overwinter ... habitat use of krill-dependent predators from Subarea 48.1”. The project was initiated with support from ... tags).  Data collection continues for one juvenile penguin and 50 adult penguins as of 13 June 2017. In ...

   Meeting Document : WG-EMM-17/07 : Auteur(s): J. Hinke, G. Watters, M. Santos, M. Korczak-Abshire, G. Milinevsky and V. Lytvynov

5. Development of the CCAMLR Marine Protected Area (MPA) Information Repository (CMIR)

   completion in October 2019, with outcomes including the deployment of the CMIR host server, a project ... submission portal, and developed workflow. The principal aim of Phase 1 is to have infrastructure in place ... Abstract:  This paper reports on the development of the CCAMLR MPA Information Repository (CMIR ... that will support submission and hosting of MPA project data. The Secretariat will provide support to ...

   Meeting Document : SC-CAMLR-38/BG/04 : Auteur(s): CCAMLR Secretariat

6. PREDICTING THE VULNERABILITY OF BRYOZOANS AND SPONGES TO DISTURBANCE USING LIFE-HISTORY CHARACTERISTICS

   form important biogenic habitat in the Southern Ocean. Data were extracted from a global database of ... ):  Martin-Smith, K. Title:  PREDICTING THE VULNERABILITY OF BRYOZOANS AND SPONGES TO DISTURBANCE USING LIFE ... Abstract:  Following on from earlier analyses presented to WG-EMM, meta-analyses of life-history ... too few data for glass sponges for robust analysis. Most sponges from the Antarctic showed no or very ...

   Meeting Document : WS-VME-09/12 : Auteur(s): Martin-Smith, K.

7. Assessment of stone crab (Lithodidae) density on the South Georgia slope using baited video cameras

   observed in the 4.9 m2 field of view exceeding 50 within 200 minutes on three occasions. Current speed was ... of 719-1518 m around the sub-Antarctic island of South Georgia. Four species of lithodid (Anomura ... to the baits of which Paralomis formosa was the most abundant. Using arrival rate at baits ... , predictions of odour plume size and observations of walking speed the abundance of the stone crab Paralomis ...

   Meeting Document : WG-FSA-03/77 : Auteur(s): M.A. Collins, C. Yau, F. Guillfoyle, P. Bagley, I. Everson, I.G. Priede and D. Agnew (United Kingdom)

8. Assessment of stone crab (Lithodidae) density on the South Georgia slope using baited video cameras

   observed in the 4.9 m2 field of view exceeding 50 within 200 minutes on three occasions. Current speed was ... of 719-1518 m around the sub-Antarctic island of South Georgia. Four species of lithodid (Anomura ... to the baits of which Paralomis formosa was the most abundant. Using arrival rate at baits ... , predictions of odour plume size and observations of walking speed the abundance of the stone crab Paralomis ...

   Meeting Document : WG-FSA-03/77 Text : Auteur(s): M.A. Collins, C. Yau, F. Guillfoyle, P. Bagley, I. Everson, I.G. Priede and D. Agnew (United Kingdom)

9. Distribution and diet of juvenile Patagonian toothfish on the South Georgia and Shag Rocks shelves (Southern Ocean)

   from 4 annual trawl surveys (2003-06) around the island of South Georgia in the Atlantic sector of the ... Abstract:  The distribution and diet of juvenile (<750 mm) Patagonian toothfish are described ... the four years surveyed. Most juveniles were caught on the Shag Rocks shelf to the NW of South Georgia ... prey were Antarctic krill and notothenid fish. The diet changed with size, with an increase in ...

   Meeting Document : WG-FSA-07/P4 : Auteur(s): M.A. Collins, K.A. Ross, M. Belchier, K. Reid. (Mar. Biol., 152: 135–147 (2007)).

10. Intra-archipelago moult dispersion of southern elephant seals at the Prince Edward Islands, southern Indian Ocean

    ), 38 of which could be individually identified by resighting their tag numbers. The majority of the MI ... . The attendance rate of the known individuals at their natal island during the annual moult was only 40 ... PEI, and 80 ± 4% for the simulation. Seasonal and annual absences of seals from MI violate the ... absences during the moult. Therefore, mark–recapture studies undertaken in archipelagos should ideally ...

    Meeting Document : WG-EMM-10/P16 : Auteur(s): W.C. Oosthuizen, M.N. Bester, P.J.N. de Bruyn and G.J.G. Hofmeyr

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