Search results
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Tag linking – revised algorithm (2019)
transparency and provides an index of the level of confidence in all linked mark-recapture data. The ... descriptions and diagnostics that could be provided to facilitate the adoption of this change in tag-linking ... Abstract: The CCAMLR Tagging Programme is a key part of CCAMLR’s management of toothfish ... fisheries and linking the details of recaptured fish to that of tagged fish is a key element of the ...
Meeting Document : WG-SAM-2019/07 : Author(s): CCAMLR Secretariat
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Revised joint research proposal for Dissostichus spp. in Subarea 88.3 by Korea and New Zealand
the abundance of Antarctic toothfish in Subarea 88.3. Secondary objectives are to improve ... understanding of stock structure of toothfish in this area, to carry out calibration trials between the two ... released on the slope, whilst also prospecting two of the northern seamount complexes and two boxes on the ... southern shelf, where little or no fishing has occurred. The main objective of the proposal is to determine ...
Meeting Document : WG-FSA-18/42 : Author(s): Delegations of the Republic of Korea and New Zealand
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Species profile of mackerel icefish (Champsocephalus gunnari)
and became the target species of fisheries in many parts of the low-Antarctic from 1975 to 1990 ... ’s with annual catches of a few thousand tonnes in each of the two areas. Aspect of the biology and ... exploitation of the species have been summarized in Kock and Everson (2003) and Kock (2005). Additional ... . Exploitation has been limited to South Georgia and Heard and McDonald Islands since the second half of the 1990 ...
Meeting Document : WG-FSA-07/12 : Author(s): K.-H. Kock (Germany) and I. Everson (UK)
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CCAMLR protocol for krill biomass estimation
the B 0 workshop held in La Jolla, USA, in May 2000 (SC-CAMLR-XIX, Annex 4, Appendix G). A number of ... ; Conti and Demer, 2005) that led to the re-analysis of the CCAMLR-2000 survey at a workshop held in ... Cambridge, UK, in June 2010 (SC-CAMLR-XXIX, Annex 5). There remains some ambiguity to the interpretation of ... Abstract: The original calculation of B 0 arising from the CCAMLR-2000 survey was undertaken at ...
Meeting Document : SG-ASAM-16/02 : Author(s): S. Fielding, A. Cossio, M. Cox, C. Reiss and G. Skaret
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APPLYING A TS-PROBE FOR MEASURING ANTARCTIC KRILL (EUPHAUSIA SUPERBA) TARGET STRENGTH IN SITU: PROCEDURES AND DATA ANALYSIS
strength of Antarctic krill in situ at short range. The experimental methods, procedure for data retrieval ... operating at 38, 120 and 200 kHz is installed in the probe, connected to three pressure resistant ... transducers with 7o half power beam opening angles. The orientation of the probe was monitored with sensors ... transducer platform with the purpose of measuring the orientation of the organisms. All system communication ...
Meeting Document : SG-ASAM-09/13 : Author(s): G. Skaret, L. Calise and E. Ona (Norway)
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REPORT FROM INVITED EXPERT TO WG-EMM-PSW-08
) participated in the WG-EMM Predator Survey Workshop as Invited Expert. The terms of reference for her ... best to fill those gaps 3. Assist in the preparation of a workshop report 4. Submit a post-workshop ... the Secretariat, in consultation with the Convener of the Predator Survey Workshop) Author(s): R ... participation were as follows: 1. Participate in the Workshop on Predator Abundance in June 2008 2. Provide ...
Meeting Document : WG-EMM-08/09 : Author(s): R. Fewster (Invited Expert)
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A method for inferring movement rates of fish from mark–recapture data
release and the recapture. In addition, the intensity of fishing effort (i.e. sampling) by location and ... required for the probability of recapture in a location to match the relative probability of catching an ... Abstract: This paper presents methods to infer the rate of movement of fish that are marked ... , released, and subsequently captured. The information that is available is the location and date of the ...
Meeting Document : WG-FSA-05/66 : Author(s): C. Wilcox (Australia)
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Comparison of NASC values calculated by swarm-based and grid-based acoustic data processing methods for Antarctic krill density estimation
Abstract: The one nautical mile integrated Nautical Area Scattering Coefficient (NASC) values of ... four surveys in 48.1 fishing area were calculated using both the swarm-based and conventional grid ... -based acoustic data processing methods. All parameter settings were consistent with the reports of SG ... -ASAM-2017 except that the dB difference window of Sv 120 kHz-Sv 38kHz is set 0 to 20 dB. And the two ...
Meeting Document : SG-ASAM-18/04 Rev. 1 : Author(s): X. Yu, X. Wang and X. Zhao
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Long-distance movements of tagged Patagonian (Dissostichus eleginoides) and Antarctic toothfish (D. mawsoni)
to date the majority of tagged toothfish movements were very restricted in distance and requested ... Abstract: At WG-SAM-16, the Working Group discussed the implications of toothfish moving long ... distances after the Chilean research survey for Dissostichus spp. in Subarea 48.2 recaptured one tagged fish ... in 2016 that had been released in Subarea 48.6 in 2011 (WG-SAM-16/20). The Working Group noted that ...
Meeting Document : WG-FSA-16/25 Rev. 1 : Author(s): CCAMLR Secretariat
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Chlorophyll distributions around the South Shetland Islands
patterns around the South Shetland Islands in the Antarctic survey of R/V the Kaiyo Maru from 13 December ... 1990 to 11 January 1991 (Leg I) and from 16 January to 11 February 1991 (Leg II). In the north of ... Abstract: Aim of this document is to supply a short information of chlorophyll distribution ... Livingston Island, high chlorophyll a concentration and low POC/chlorophyll a ratio in Leg II and low ...
Meeting Document : WG-KRILL-93/23 : Author(s): H. Ishii, T. Ichii and M. Naganobu (Japan)