Résultats de la recherche
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An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island
tonnes for the Heard Plateau and 18 tonnes for Sliell Bank. An assessment based on the results of a ... Paper Title: An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island ... populations on the Heard Plateau are sufficiently different from those on Shell Bank for them to be managed ... survey conducted at the end of the 1997 fishing season would allow for a catch limit on the Heard Plateau ... an effective method for limiting the size and age of first capture for this species. Avoiding the ... mortality Tolerance (error) for determining fishing mortality in each year First age of maturity Date ... tonnes for Sliell Bank. An assessment based on the results of a survey conducted at the end of the 1997 ... will be shown below, have different age structures in the same year and appear to have differences in ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 79–101 : Auteur(s): de la Mare, W.K., R. Williams and A.J. Constable
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Towards an ecological risk assessment of krill fishing in East Antarctica (CCAMLR Divisions 58.4.1 and 58.4.2)
of krill catch and effort. We have pulled together an initial collection of existing krill predator ... distribution models and have produced new preliminary models for krill and various predator species. We request ... the Working Group review this work, prioritise data sets and further analyses, and consider a process ... to allow the completion of a first risk assessment for the krill fishery in this region in the near ...
Meeting Document : WG-EMM-17/20 : Auteur(s): N. Kelly, M. Cox, L. Emmerson, S. Kawaguchi, B. Raymond, C. Southwell and D. Welsford
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An assessment of Chaenocephalus aceratus and Pseudochaenichthys georgianus in Subarea 48.3
the years 1977 to 1988 consisted of catches of C. aceratus and P. georgianus. Biological, age-length ... for these two species by assuming that 75% of the ‘unidentified fish’ caught by the Soviet Union in ... future. Author(s): D.J. Agnew (Secretariat) and K.-H. Kock (Germany) Title: An assessment of ...
Meeting Document : WG-FSA-90/06 : Auteur(s): D.J. Agnew (Secretariat) and K.-H. Kock (Germany)
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Brief comments on the simulation study made by Professor Butterworth on krill fishing by an individual Japanese trawler
values used for the minimum catch rate per overall elapsed time. It is suggested that an improvement in ... fishing by an individual Japanese trawler Abstract / Description: In this paper, three essential ... questions are raised concerning the simulation study of the Japanese krill fishery carried out by ... being produced, and the demand for each product varies substantially from one season to the next ... , the demand for each product can be seen to change from year to year. We do, therefore, agree with him ... MADE BY PROF. BUTTERWORTH ON KRILL FISHING BY AN INDIVIDUAL JAPANESE TRAWLER T. Ichii and Y. Endo ... Abstract In this paper, three essential questions are raised concerning the simulation study of the ... SSTs are markedly dependent upon the type of products being produced, and the demand for each product ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 347–350 : Auteur(s): Ichii, T. and Y. Endo
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An approach to feedback management (FBM) of the krill fishery based on routine acoustic data collection and intermittent land-based predator studies
renewed due the CCAMLR’s inability to establish an agreed, operational feedback management (FBM) approach ... strictly not in line with the CCAMLR ecosystem approach to management. FBM has been considered an ... alternative approach for decades, but still lacks a plan that can be made operational within realistic cost ... , understandable and robust relationships which in turn creates trust by the stakeholders and will enable an ...
Meeting Document : SC-CAMLR-XXXVI/BG/20 : Auteur(s): Delegations of Norway, China and Chile
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An overview of a large ecosystem survey of the southwest Indian Ocean sector of the Southern Ocean (CCAMLR Division 58.4.2)
Division 58.4.2 (the South West Indian Ocean Sector of the Southern Ocean 30-80°E) in January-March 2006 ... , which was designed around an acoustic biomass survey for krill and a large-scale oceanographic survey ... transects, between 30° and 80°E. On each transect a range of underway data were obtained and on six ... Abstract: This document outlines the preliminary results of an Australian survey of CCAMLR ...
Meeting Document : WG-EMM-06/15 : Auteur(s): S. Nicol, S. Kawaguchi, T. Jarvis, G. Williams, N. Bindoff, D. Thiele (Australia), J. Schwarz (Germany), A. Davidson, S. Wright, J. Gedamke and P. Thompson (Australia)
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Tooth growth in male Antarctic fur seals (Arctocephalus gazella) from South Georgia: an indicator of long-term growth history
provided an indication of body growth, Tooth growth rate was lowest in seals which died early (age 4 years ... in longitudinal sections of teeth. Mean age at death was 7∙69 ± 0∙07 years and this showed a small ... strengths were detected, but particularly poor years for growth were closely related to years in which ... ) and increased with age at death. Changes in the growth pattern of teeth suggested that fur seals which ...
Meeting Document : WG-CEMP-93/11 : Auteur(s): I.L. Boyd and J.P. Roberts (United Kingdom)
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Fisheries in the Southern Ocean – an ecosystem approach. Trans. Roy. Soc. Lond. (in press)
bound by its Article II, 3 to follow an ecosystem approach to management. This approach has been ... Abstract: The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) is ... extended to the application of a precautionary approach in the late 1980’s. In our review we deal primarily ... with the science–related aspects of CCAMLR and its development towards an ecosystem approach to the ...
Meeting Document : SC-CAMLR-XXIV/P01 : Auteur(s): Kock, K.-H., K. Reid, J. Croxall and S. Nicol
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Seasonal and inter-annual variability in the distribution of Electrona carlsbergi in the southern Polar Front area (the area to the north of South Georgia is used as an example)
the southern Polar Front area (the area to the north of South Georgia is used as an example) Abstract ... concentrations throughout the year. Results of surveys showed that the distribution and behaviour of E ... months were noted as transitional for parameters of vertical distribution and density of fish ... year is related to parameters of spatial and vertical distribution of fish. Interannual variability of ... 18 to 20 December, 1988 676 11278 9 - 80 16.7 * density range * * mean value 343 w t _ 40 ... in this area on board RV Vozrozhdenie. They worked for almost two years from October 1987 to June ... WG-FSA-90/35 SEASONAL AND INTER· ANNUAL VARIABILITY IN ... SOUTH GEORGIA IS USED AS AN EXAMPLE) A.N. Kozlov, K.V. Shust and A.V. Zemsky* Abstract From 1987 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 337–367 : Auteur(s): Kozlov, A.N., K.V. Shust and A.V. Zemsky
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Longline sink rates of an autoline vessel, and notes on seabird interactions
, direct observations at sea indicated that weights did have an effect on line sink for 20–40 m either side ... cinerea) accounted for 90% of the observed incidental catch; of which 90% were foul hooked rather than ... Abstract: A series of longline sink-rate trials were conducted with and without weights, from an ... attachment method for Time Depth Recorders was developed. A tori line was used at all times by the vessel ...
Meeting Document : WG-FSA-01/44 : Auteur(s): N.W.McL. Smith (New Zealand)