Résultats de la recherche

1. Estimating unaccounted fishing mortality in the Ross Sea region and Amundsen Sea (CCAMLR Subareas 88.1 and 88.2) bottom longline fisheries targeting Antarctic toothfish

   . However, fish that are captured by fishing gear that is not subsequently retrieved are generally not ... of target and by-catch species, impacts to benthic habitats, the introduction of synthetic ... caused by lost fishing gear. Any longline gear that is baited and set, but not successfully retrieved ... that are captured by fishing gear that is not subsequently retrieved are generally not counted in ... Subarea 88.2 fisheries spatially and temporally, by gear type, vessel, depth and small-scale research ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 17–30 : Auteur(s): Webber, D.N. and S.J. Parker

2. Preliminary model of krill fishery behaviour in Subarea 48.1

   data over the period 1989 to 1992. The distribution of catches predicted by the model, which is ... fishery data over the period 1989 to 1992. The distribution of catches predicted by the model, which is ... between December and March, so there is considerable spatial and temporal overlap in krill usage by ... fishermen and predators (SC-CAMLR, 1992). Recently, this concern has been somewhat allayed by a study ... Preliminary Model of Krill Fishery Behaviour (l0 longitude by 0.5" latitude) and temporal blocks of 10-day ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 71–79 : Auteur(s): Agnew, D.J. and V.H. Marín

3. Variations in condition indices of mackerel icefish at South Georgia from 1972 to 1997

   affected by the reproductive cycle unless there is high krill availability during the months around the ... of local krill density. The index is likely to be little affected by the reproductive cycle unless ... by the Convention for the Conservation of Antarctic Marine Living Resources. An index of condition ... of C. gz~ni~nri derived by comparing measured mass to an estimated 'average' mass has been show11 ... followed by poor feeding conditions. Initially the stomach contents would decrease leading to a reduction ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 119–132 : Auteur(s): Everson, I. and K.-H. Kock

4. Midwater trawl catchability as an aspect of a quantitative assessment of krill biomass conducted using a trawl census survey

   catchability over the survey area and also because the biomass estimates thus obtained were characterised by ... because the biomass estimates thus obtained were characterised by high relative error. A standard method ... biomass for the entire survey area is calculated by adding the values for each layer. Yu.V. Kadilnikov ... - area and volume fished by the trawl over a standard hauling period; mq - mean catch per standard ... from formulas 3 to 7, the error in biomass assessment from trawl survey data is determined by ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 257–272 : Auteur(s): Kasatkina, S.M.

5. The foraging range of Adélie penguins – implications for CEMP and interactions with the krill fishery

   Adélie penguins, determined by satellite tracking, at seven widely-spaced breeding colonies along the ... paper presents a summary of the foraging locations of Adelie penguins, determined by satellite tracking ... investigated by Agnew (1992) based on the time penguins are away from their colonies and their average ... swimming speed as reported by, for example, Lishman (1985) and undertaken to determine the foraging ... the preferred fishing method for tracking birds by ARGOS satellite areas are not adjacent to the ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 75–87 : Auteur(s): Kerry, K.R., J.R. Clarke, S. Eberhard, H. Gardner, R.M. Lawless, S. Corsolini, S. Focardi, E. Franchi, D. Rodary and R. Thomson

6. The use of predator-derived krill length-frequency distributions to calculate krill target strength

   only a 1% difference, illustrating the need for simultaneous length-frequency data. By integrating data ... simultaneous length-frequency data. By integrating data from land-based predators directly with automated on ... increased con- siderably by January, when the acoustic estimate is typically conducted. Thus, at the onset ... intensity of sound, at a given frequency, backscattered (reflected) by krill compared to the intensity of ... al., 1990). CCAMLR has adopted the TS-to-length relationship for krill proposed by Greene et al ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 155–163 : Auteur(s): Reid, K. and A.S. Brierley

7. A rationale for conservation areas within Antarctic waters

   . This has been supplemented by (limited) information on the distribution of major consumers including ... supplemented by (limited) information on the distribution of major consumers including baleen whales, seals ... Antarctic ecosystems proposed by the SCAR Sub-Committee on Conservation (1976). Under the Convention for ... management by open and closed areas (Article IX 2 (g). So far only one area has been closed to fishing ... ; only that exchanges between them by migration be low in relation to productivity (growth and survival ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 513-535 : Auteur(s): Chittleborough, R.G.

8. Growth and age/length structure of populations of Notothenia (Lepidonotothen) squamifrons (Nototheniidae) in various areas of the Indian sector of the Southern Ocean

   decreases by a maximum of 1 cm during the last years of life. Maximum annual weight increments of 100 to 120 ... years of life the linear growth rate is 3 to 5 cm per year. It decreases by a maximum of 1 cm during ... by Shust and Pinskaya (1978), while a similar study of Indian Ocean sub-species has been carried out ... by Duhamel and Ozouf-Costaz (Duhamel, 1981; Duhamel, Ozouf-Costaz, 1985). This paper results from ... by research vessels from the AzCherNIRO Institute and Yugrybpromrazvedka (Southern Fishery Survey ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 123–139 : Auteur(s): Zaitsev, A.K.

9. Analysis of krill trawling positions north of the South Shetland Islands (Antarctic Peninsula area), 1980/81–1999/2000

   . Trawling positions seemed to be primarily governed by the distribution of larger mature krill, especially ... in the season. Trawling positions seemed to be primarily governed by the distribution of larger ... other factors may also affect fishing position. It may be that fishing position is determined by a ... combination of factors such as krill distribution, density and colour, by-catch, environmental conditions ... etc. Antarctic krill (Elrpllnusin superbn) in the South Shetland Islands area is characterised by ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 25–36 : Auteur(s): Kawaguchi, S. and K. Segawa

10. Joint Polish/American hydroacoustic survey of Elephant Island and the vicinity of King George Island, 1988

    in most areas covered by last year’s survey. The total biomass in the vicinity of Elephant Island was ... hydroacoustic survey found a low krill abundance in most areas covered by last years survey. The total biomass ... objectives of the cruise focus on priorities identified by the CCAMLR Ecosystem Monitoring Working Group ... kHz and 200 kHz, American; 120 kHz Polish). The coverage by frequency/depth/method of integration is ... processed by analog integrator (120 kHz) or processed using the software and hardware developed at NWAFC ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 357–377 : Auteur(s): Macaulay, M.C.

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