Search results
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Modelling catch and effort data using generalised linear models with random cruise effects: trawl fishery for mackerel icefish (Champsocephalus gunnari) in CAMLR Area 58.5.2
Abstract: A set of procedures for modelling catch and effort data using generalized linear mixed ... , after which time there was a sharp increase in 2001 with a steady decline thereafter. The sharp increase ... has since diminished through a combination of Author(s): S.G. Candy (Australia) Title: Modelling ...
Meeting Document : WG-FSA-03/35 : Author(s): S.G. Candy (Australia)
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CCAMLR Survey Database: development during 2002
had to be postponed because of a higher priority need for developing a web-based data system for the ... database consists of some 50 tables and 50+ stored procedures and triggers. A detailed description of the ... existing CCAMLR data to the new survey database. Future work may also include the development of a stand ...
Meeting Document : WG-FSA-02/10 : Author(s): Secretariat
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Notes for identifying the three macrourid species, M. holotrachys, M. whitsoni and M. carinatus in CCAMLR Subarea 48.3
scale counts were used. M.whitsoni has a head ratio (head length/inter orbital distance) of less than ... 5.2 whilst M.carinatus has a head ratio of greater than 5.2. There was some overlap in the ranges of ... most of these measures and so a single character will not always successfully I.D. a species. However ...
Meeting Document : WG-FSA-02/29 : Author(s): S.A. Morley, M. Belchier, M.G. Purves, T. Mulvey and J. Dickson (United Kingdom)
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Age-at-length of Patagonian toothfish from South Georgia
toothfish stock around South Georgia, we used otoliths to estimate the age of a sample of 264 Patagonian ... toothfish (Dissostichus eleginoides) captured in the longline fishery. We used a thin section grinding ... machine to reveal a transverse plane through the otolith nucleus and between crenellations. A single ...
Meeting Document : WG-FSA-02/75 : Author(s): J. Ashford, M. Belchier, C. Jones and S. Bobko
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Reducing seabird by-catch with an underwater longline setting funnel
Abstract: We tested the efficacy of a Mustad underwater setting funnel to reduce seabird bycatch ... in a demersal longline fishery for Patagonian toothfish Dissostichus eleginoides. The funnel, which ... million hooks) over a two-year period. There was no evidence for lower catches or significantly higher ... offers a significant reduction in seabird mortality and could increase fishing efficiency by allowing ...
Meeting Document : WG-FSA-00/29 : Author(s): P. Ryan and B. Watkins (South Africa)
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Human activity and disturbance: building an Antarctic site inventory
Antarctic shipboard tourism takes place. A brief summary of this human history in Antarctica reveals a wide ... intended to provide a new measure of protection by ensuring that tourism, science, and all other human ... a database and inventory of information that assists in both the preparation and the evaluation of ...
Meeting Document : WG-EMM-98/09 : Author(s): R. Naveen, Oceanites (USA)
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CLIMATE CHANGE AND THE ANTARCTIC MARINE ENVIRONMENT: MANAGEMENT IMPLICATIONS
necessitate that CEP and CCAMLR address a number of key issues if both organisations are to fulfil their ... understanding, such a risk assessment should be feasible and should provide a focus for future work. As part of ... .. Therefore, a plan for the future would likely involve delegated responsibility (e.g. to CEP, or CCAMLR, or ...
Meeting Document : WG-EMM-09/24 : Author(s): P.N. Trathan and D. Agnew (United Kingdom)
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The relationship between krill (Euphausia superba) fishing areas in the west Atlantic and the species’ circumpolar distribution
four regions are also calculated- (a) the CCAMLR Convention Area, (b) south of 55°S, (c) containing ... computer software based on a Lambert Geographical Projection. As a secondary step, the mean krill density ... estimate for the West Atlantic during FIBEX (First International BIOMASS Experiment) is expanded to give a ...
Meeting Document : SC-CAMLR-VIII/BG/19 : Author(s): Delegation of South Africa
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Optimization of the sampling design in the detection of interannual variability and prey size selectivity in the diet of penguins
for detection of interannual variability are obtained and a sampling protocol is suggested. A table of ... minimal numbers of penguins to be sampled as a function of number of sampling dates and magnitude of the ... x date interaction equal to the variance component for penguin in dates obtained from a previous ...
Meeting Document : WG-CEMP-90/09 : Author(s): E. Marschoff and B. Gonzalez (Argentina)
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An overview of tagging skates (Rajiformes) and CCAMLR skate tagging data
better understand a wide range of metrics including movements and migrations, stock units, growth rates ... taxonomic and identification problems, this makes the tagging studies undertaken in CCAMLR area a ... CCAMLR Working Groups. This report provides an overview of global tagging studies on skates, a review of ... tag loss and tag shedding rates in fish (with emphasis on elasmobranchs), a summary of CEFAS tagging ...
Meeting Document : WG-SAM-13/25 Rev. 1 : Author(s): S.R. McCully, D. Goldsmith, G. Burt, R. Scott and J.R. Ellis (United Kingdom)