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Summary and update of tagging of Patagonian toothfish at Heard and Macquarie Islands
Macquarie Islands are presented, along with a summary of results since the beginning of the programme ... Abstract: Further data arising from the tagging programme on Patagonian Toothfish at Heard and ... . Results from the programme of archival tagging of toothfish are also presented. Author(s): Delegation of ...
Meeting Document : WG-FSA-03/70 : Автор(ы): Delegation of Australia
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Validation of age determination in Notothenia coriiceps, by means of a tag-recapture experiment at potter cover, South Shetland Islands
Shetland Islands, in successive years from 1989 to 1992, 9 were recaptured at the same site after periods ... after the period of liberty. In scales of those specimens recovered after 11-13 months, one extra ... annulus was laid down. The same analysis in one individual recovered after 21 months resulted in 2 extra ... of 11-21 months. A comparison was carried out between the annuli found in scales removed before and ...
Meeting Document : WG-FSA-94/12 : Автор(ы): E.R. Barrera-Oro and R.J. Casaux (Argentina)
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New CCAMLR SISO Observer Manuals and updated longline logbook
data collection for a focussed skate tagging programme in the Ross Sea, beginning in the 2020 season ... Abstract: This paper presents two new observer manuals for finfish and krill fisheries. The ... requirements. In addition a new version of the observer longline logbook is presented, with additions to allow ...
Meeting Document : WG-EMM-2019/75 : Автор(ы): CCAMLR Secretariat
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Leslie analyses of commercial snow crab trap data: a comparative study of catchability coefficients
between catch rate at the beginning of the season and the corresponding population estimate obtained by ... Abstract: If we could determine the relationship between catch rates in a trap survey and ... absolute population size, then we could estimate the standing stock of snow crabs before the fishing season ... from a survey conducted with traps. One way to calibrate the catch rates is to examine available ...
Meeting Document : WS-CRAB-93/13 : Автор(ы): J.M. Hoenig, E.G. Dawe, D.M. Taylor, M. Eagles and J. Tremblay (USA)
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CHARACTERISING KRILL FISHERY DYNAMICS USING A RANDOM WALK MODEL
long distant movements at the beginning of the fishing season, and autumn was suggested as optimal ... -distances were well described by a Levy Flight type random walk model. The inferred distribution pattern of ... season since generally less searching seemed to be required due to higher target density in the fishing ...
Meeting Document : WG-EMM-09/18 : Автор(ы): S. Kawaguchi, S. Candy and A. Constable (Australia)
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CCAMLR-IWC Export Group Report: Primary Productivity and Phytopalnkton
available, from missions beginning with the Coastal Zone Color Scanner in the late 1970s through to the ... Abstract: This report summarizes the satellite ocean color (chlorophyll) data that are currently ... SeaWiFS and MODIS sensors that have been providing data for the last ten years. The characteristics of ... their use in the Southern Ocean. A brief history of algorithms linking ocean color to primary ...
Meeting Document : CCAMLR-IWC-WS-08/13 : Автор(ы): Matear, R., Mongin, M., Lovenduski, N., Strutton, P.
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An attempt to derive a composite index of abundance from acoustic surveys and fishery data
around the northwestern end of Elephant Island during the austral summer of 1992. In this area, the ... end of the island. Author(s): R.P. Hewitt (USA), V. Marín (Chile) and D. Demer (USA) Title: An ... Abstract: Maps of krill (Euphausia superba) density derived from acoustic survey data and the ... distribution of fishing effort in the Chilean krill fishery indicate an area of high krill density wrapping ...
Meeting Document : WG-Krill-94/14 : Автор(ы): R.P. Hewitt (USA), V. Marín (Chile) and D. Demer (USA)
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CCAMLR ecosystem monitoring program standard methods: determination of sex of Adelie penguins
laying. Peak presence of males occurred 15–21 days after the appearance of the first egg in the colony ... identified with 91∙8–98∙6% accuracy within 15–21 days after the first sighting of an egg. The method provides ... Abstract: The suggestion that sex of Adélie penguins, Pygoscelis adeliae, might be assigned by ... observing which member of the pair (the male) takes the first long incubation shift (Anon. 1991) was ...
Meeting Document : WG-CEMP-94/08 : Автор(ы): K.R. Kerry, J.R. Clarke and G.D. Else (Australia)
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First increment validation of Patagonian toothfish (Dissostichus eleginoides) from Heard Island
the end of the first year of growth. While there is a general consensus that the observed increments ... that the outer edge of the first translucent zone would correspond with the end of the first year’s ... one opaque and one translucent increment is formed each year on the sectioned face of sagittal ... assumed to cause interpretation differences was the position of the first increment that corresponded with ...
Meeting Document : WG-FSA-05/61 : Автор(ы): K. Krusic-Golub, C. Green and R. Williams (Australia)
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Detection of systematic change in Adélie penguin foraging trip duration: consequences of high inter-annual variability and usefulness of ice cover as a covariate
Abstract: Power analyses were carried out using a 12 year data set from the Béchervaise Island ... Adélie penguin colony with the aim of determining minimum sample sizes required to detect systematic ... change were investigated: 1) change occurring at a constant rate after a certain point in time and 2) a ... the latter form could be more quickly and powerfully detected at a range of effect sizes than could ...
Meeting Document : WG-EMM-05/22 : Автор(ы): J. Clarke, C. Southwell and L.M. Emmerson (Australia)
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