Résultats de la recherche
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The choice of procedure for deciding when to close fisheries regulated by CCAMLR: a simulation model
Paper Title: The choice of procedure for deciding when to close fisheries regulated by CCAMLR: a ... simulation model Abstract / Description: The methods, described in CCAMLR Conservation Measures, used for ... deciding the closure date for fisheries monitored by the Secretariat of CCAMLR, have been difficult to ... implement because of the variation in catch rates shown by the fisheries. Non-fluctuating random and ... falling due at the end of the period following that in which catches are taken; • the Secretariat should ... Secretariat was modelled by: where D is the total time from the end of a reporting period to the arrival of ... is Catch rate of most recent The end of the reporting is the model described greater than a ... The end of the reporting ad hoc method by the the period immediately period period within which the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 81–97 : Auteur(s): Agnew, D.J.
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Fish distribution and biomass in the Heard Island zone (Division 58.5.2)
Paper Title: Fish distribution and biomass in the Heard Island zone (Division 58.5.2) Abstract ... / Description: Division 58.5.2 encompasses the southern part of the Kerguelen plateau, and contains Heard ... Island and the McDonald Islands, an Australian Territory around which a 200-mile EEZ has been declared ... . In order to assess the potential of this area for commercial fishing, and to obtain some preliminary ... Survey End 23 June 1990 13 February 1992 28 September 1993 designated as a separate stratum. The ... . As the spawning season is not until the end of October at Kerguelen (Duhamel and Ozouf-Costaz ... spread of strong younger size classes. By spring 1993, 18 months after summer 1992, the large size ... AND BIOMASS IN THE HEARD ISLAND ZONE (DIVISION 58.5.2) R. Williams and W.K. de la Mare Australian ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 1–20 : Auteur(s): Williams, R. and W.K. de la Mare
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Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Subarea 48.6
stages of the fish. To this end, we propose to follow the current research style in the current research ... Abstract: The current season (2014/15) is the final one of the first three-season research which ... began in 2013 in data-poor fisheries. In the present report, catch, effort and biological data recorded ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ...
Meeting Document : WG-SAM-15/06 : Auteur(s): Delegation of Japan
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Review of CCAMLR activities on monitoring marine debris in the Convention Area
items reached a peak in the period 1994-1996 at Bird Island and Signy Island, but declined after that ... Abstract: The current status of national programmes on monitoring of marine debris and their ... impact on marine mammals and seabirds in the Convention Area has been reviewed. The CCAMLR Marine Debris ... ), King George Island, (South Shetland Islands) and Marion Island. The number of beached marine debris ...
Meeting Document : SC-CAMLR-XXVI/BG/10 : Auteur(s): Secretariat
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Cetaceans as indicators of historical and current changes in the East Antarctica ecosystem
the stable trend of age at sexual maturity and recruitment after 1970’s. The stable trend in ... Abstract: Changes in the Antarctic ecosystem have been triggered by anthropogenic and natural ... factors. This paper reviews the scientific information of whales that could be indicative of changes in ... the East Antarctica ecosystem in the context of two hypotheses, the ‘krill surplus’ hypothesis in the ...
Meeting Document : WG-EMM-16/64 : Auteur(s): Y. Fujise and L.A. Pastene
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On the state of Champsocephalus gunnari stock in Subarea 48.3 and methods of its assessment
) both during the period of the icefish fishery in 1980s and after its ceasing in 1990s. In all cases, a ... Abstract: The unusually effective fishery on mackerel icefish (C.gunnari) in the South Georgia ... thousand tons, and the followed bottom trawl surveys by Russia and Great Britain in December 1999- February ... 2000 showed clearly a necessity to revise the methods of icefish (which is near-bottom and pelagic fish ...
Meeting Document : WG-FSA-00/45 : Auteur(s): K. Shust, V. Senioukov, P. Gasiukov and A. Kozlov (Russia)
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Seals: Trophic modelling of the Ross Sea
Description / Abstract: A supporting document to the CCAMLR Science paper: M.H. Pinkerton, J.M ... . Bradford-Grieve and S.M. Hanchet. 2010. A balanced model of the food web of the Ross Sea, Antarctica ... leave their natal areas by the end of February, moving north along the Antarctic continent coastline ... from the study region each year at the end of the breeding season. This export will be offset by the ... seals tracked from McMurdo Sound by Stewart et al. (2000) moved north after moulting and then spent the ... the region after breeding to areas of less consolidated sea ice, there will be an export of biomass ...
Document : Site Section: Publications
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Mesopelagic fish of the Southern Ocean - summary results of recent Soviet studies
Paper Title: Mesopelagic fish of the Southern Ocean- summary results of recent Soviet studies ... a part of the general multi-disciplinary program of research on Antarctic biological resources ... . Studies concentrate primarily on the following four most abundant species: Electrona carlsbergi, Electrona ... antarctica, Krefftichthys (Protomyctophum) anderssoni and Gymnoscopelus nicholsi. The data obtained so far ... plankton development. Reproduction: Spawning apparently takes place at the end of winter (June/July) or ... the end of autumn or in the winter (April to June). Feeding: The diet of G. nicholsi consists of ... at the beginning of spring (August/September). From November to May gonads of E. carlsbergi were ... WG-FSA-90/23 MESOPELAGIC FISH OF THE SOUTHERN OCEAN ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 433–457 : Auteur(s): Sabourenkov, E.N.
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CPUEs, body length and greenness of Antarctic krill during 1987/88 season in the fishing ground north of Livingston Island
Paper Title: CPUEs, body length and greenness of Antarctic krill during 1987/88 season in the ... there was a marked change in two kinds of CPUEs, body length and greenness of krill during the fishing ... season, these parameters were examined for each 10-day period of the Japanese krill fishery in the ... northern waters of Livingston Island in the 1987/88 season. It appears that Japanese trawlers have not ... , from the tip of rostrum to the posterior end of telson, of 50 animals from one haul per day ... . Additionally, after the co-operative survey, krill biomass on this fishing ground was estimated by an echo ... 200 m in the s-shaped co-operative survey area (Figure 1). After the co-operative survey between RV ... ANTARCTIC KRILL DURING 1987/88 SEASON IN THE FISHING GROUND NORTH OF LlVINGSTON ISLAND Y. Endo and T ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 323–338 : Auteur(s): Endo, Y. and T. Ichii
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Prey monitoring surveys: a discussion of the characteristics necessary in prey surveys
Paper Title: Prey monitoring surveys: a discussion of the characteristics necessary in prey ... surveys Abstract / Description: The CCAMLR Ecosystem Monitoring Programme requires information on prey ... distribution to relate to changes in predator demography. The paper discusses the constraints imposed on such ... the Adelie and the end of the Chinstrap periods. A suitable compromise might be from 13 Dec to 13 Jan ... in a random sequence. If the pairs were selected so as to start at the study colony end then the ... present in the near surface layer. Much predator feeding does however take place after dark so that ... DISCUSSION OF THE CHARACTERISTICS NECESSARY IN PREY SURVEYS I. Everson (United Kingdom) Abstract The ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 377-391 : Auteur(s): Everson, I.