Search results
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Towards a validation of ageing in mackerel icefish (Champsocephalus gunnari) – can we estimate age more accurately?
ototlith exchange programme in the late 1980’s revealed considerable differences between readers when fish ... older than 3 or 4 years were aged. These differences could not be reconciled at the end of the exchange ... . A second age determination workshop on mackerel icefish to improve the accuracy of age determination ... was agreed upon at the last meeting of the ‘Working Group on Fish Stock Assessment’. Our report ...
Meeting Document : WG-FSA-05/23 : Author(s): K.-H. Kock (Germany) and Zh.A. Frolkina (Russia)
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Experimental acoustic survey of icefish resources in Subarea 48.3, 2005
Abstract: This report describes the activities and preliminary results of the research carried ... out during January 2005 onboard the FPRV ‘Dorada’ by British Antarctic Survey (BAS) Scientists on ... behalf of UK authorities. Survey Objectives The primary objectives of the proposed survey were to ... : • Refine methods for estimating icefish biomass using acoustics. • Examine temporal changes in the vertical ...
Meeting Document : WG-FSA-05/79 : Author(s): M. Belchier, M. Collins (United Kingdom), R. O’Driscoll (New Zealand), S. Clarke and W. Reid (United Kingdom)
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CCAMLR Compliance Evaluation Procedure (CCEP) Summary Report and analysis
Abstract: In accordance with CM 10-10, paragraph 2(i), and the procedure detailed in COMM CIRC 19 ... /76, the Secretariat has prepared the Summary CCAMLR Compliance Report (Summary Report) based on the ... Draft CCAMLR Compliance Reports (Draft reports), responses received from Contracting Parties, and the ... suggested preliminary compliance status. The Draft reports identified 16 potential conservation measure ...
Meeting Document : CCAMLR-38/13 Rev. 2 : Author(s): CCAMLR Secretariat
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Conceptual model of icefish (Champsocephalus gunnari)
Abstract: The Convention for the Conservation of Antarctic Marine Living Resources (CCAMLR) is ... currently considering plausible models of the Southern Ocean ecosystem within the Working Group on Ecosystem ... Monitoring and Management (WG-EMM). The icefish, Champsocephalus gunnari, is one of the key components in the ... subantarctic marine ecosystem in the Scotia Sea and northern Kerguelen Plateau areas, as well as supporting ...
Meeting Document : WG-EMM-04/59 : Author(s): R. Williams (Australia)
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Blue-eyed shags as indicators of changes in ittora fish populations
Abstract: The use of Shag’s pellets as an appropriate technique to monitor the abundance of ... littoral fish populations is presented for consideration of the CCAMLR Ecosystem Monitoring Program Working ... Group. The effectiveness of the method is based on the very good agreement found between the fish ... species identified by the examinations of otoliths present in regurgitated cast and those regularly ...
Meeting Document : WG-CEMP-93/25 Rev. 1 : Author(s): R. Casaux and E. Barrera-Oro (Argentina)
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Executive Secretary’s Report 2016/17
Abstract: This annual report from the Executive Secretary, for the 12-months since CCAMLR-XXXV ... , is accompanied by an Implementation Report for the third year of the Secretariat’s Strategic Plan ... (2015–2018) and a report on implementation of the Secretariat’s Salary and Staffing Strategy during 2017 ... . Consistent with the Commission’s decision in 2002, these documents provide, inter alia, a basis for the ...
Meeting Document : CCAMLR-XXXVI/05 : Author(s): Executive Secretary
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Preliminary analysis of seabird by-catch using CCAMLR observer data
Dissostichus eleginoides and various factors, including the nature and use of mitigating measures as well as ... presence/absence of seabird catches and a Gamma model for the magnitude of non-zero catches. Sparsity of ... combined. Other analytical difficulties, particularly in using generalised linear models, related to the ... large number of potentially important factors, the lack of overlap between factors and the fact that ...
Meeting Document : WG-FSA-99/28 : Author(s): D.J. Agnew and J.P. Croxall (United Kingdom)
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Krill population dynamics at South Georgia 1991–1997, based on data from predators and nets
scientific nets from the same area over the summers of 1991-1997. In comparing the 5 years with both predator ... sampling the same overall krill population. Greatest similarity results from comparing net samples with ... samples from late summer (March). From the 7-year predator time-series, within-year variation was greatest ... krill dominated during December but were completely replaced by small krill by February. The mean length ...
Meeting Document : WS-AREA 48-98/15 : Author(s): K. Reid, J. Watkins, J. Croxall and E. Murphy (UK)
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Male krill grow fast and die young
Abstract: The size-differentiated sex ratio (proportion of males: POM) of Antarctic krill was ... examined with an extensive dataset derived from scientific surveys in the Indian Ocean sector and the ... southwest Atlantic sector, and from the krill fishery in the Southern Ocean. The percentage of males in size ... , sometimes showed higher values in 45-50 mm krill, but always decreased in the largest krill (>50 mm ...
Meeting Document : WG-EMM-07/P6 : Author(s): S. Kawaguchi, L.A. Finley, S. Jarman, S.G. Candy (Australia), R.M. Ross, L.B. Quetin (USA), V. Siegel (Germany), W. Trivelpiece (USA), M. Naganobu (Japan) and S. Nicol (Australia)
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Seabird observations in Subareas 48.1, 48.2 and 88.3 and proposal for a new streamer line design
of the New Fisheries Project developed by Chile in Statistical Subareas 88.3, 48.1 and 48.2. During ... , carrying out bird observations in each one of the 52 castings with the Spanish-designed longlines as well ... . The streamer line suggested by the CCAMLR was not appropriate during wind conditions, so an alternate ... simpler construction and increased visibility. Neither bird capture nor mortality was reported during the ...
Meeting Document : WG-FSA-98/19