Search results
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ADDING CATCH AT AGE AND SURVEY DATA TO THE 48.3 TOOTHFISH CASAL ASSESSMENT
Abstract: The catch-at-age based CASAL model for toothfish in Subarea 48.3, which was presented ... in 2007, is developed and extended here to include survey data. Additional adjustments to the model ... but in the past some cohorts have been missed by the survey. Fits to the survey CPUE are generally not ... retardation period and rate of tag loss. When these factors are included in the model the fits to the tag ...
Meeting Document : WG-SAM-09/13 : Author(s): D.J. Agnew and M. Belchier (United Kingdom)
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Dietary segregation of krill-eating South Georgia seabirds
period in 1986. For five species, Antarctic krill Euphausia superba was the main food (39-98% by mass ... , was different between all seabird species, reflecting some combination of differences in foraging ... ranges. selectivity by predators, or differences in escape responses of krill. For the krill-eating ... success and information on diet in 5-10 other years suggest that in 1986 seabird diet and reproductive ...
Meeting Document : WG-EMM-97/15 : Author(s): Prince, P.A., Croxall, J.P., Reid, K.
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Informative approaches to ageing Antarctic fishes
considered in terms of the passage of time (chronological age), and it can also be examined as ' ... ;physiological time'. In this regard otoliths and post-mitotic tissues may contain a large amount of ... biological and ecological information about a fish's age and past life history. In otoliths this ... correlated and that species differences in shape exist. Regression analyses of otolith dimensions may make it ...
Meeting Document : CCAMLR/86/FA/07 : Author(s): R.L. Radtke and K.T. Hill (USA)
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Risk assessment framework for subdividing the krill catch trigger level, including relevant background data and information
Abstract: At its annual meeting in 2016, WG-EMM recalled its obligation to review and advise on ... discussions on this subject in paragraphs 2.201 to 2.244 of its WG report. WG-EMM recommended that work be ... in Area 48 through an e-group and to deliver these outputs to Scientific Committee (WG-EMM-16 ... , paragraphs 2.230-2.244). These outputs would first be provided to WG-FSA for review, which in turn would ...
Meeting Document : SC-CAMLR-XXXV/BG/37
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Proposal for the creation of a Domain 1 MPA Expert Group
research and fishing activities. The complexity of its management is reflected in the numerous discussions ... feedback management strategy, and lately the designation of a Marine Protected Area. In addition ... , considering the significant increase in the environmental variability and climate trends observed in the ... changes, a new approach involving the views of multinational experts is required, in order to identify the ...
Meeting Document : SC-CAMLR-XXXVI/19 : Author(s): Delegations of Argentina and Chile
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CCAMLR Statistical Bulletin, Vol. 28 data files
Description / Abstract: CCAMLR Statistical Bulletin Data available in csv/text format The fishery ... and trade statistics in the CCAMLR Statistical Bulletin are published annually and the underlying data ... are freely available in the public domain. The fishery statistics are based on STATLANT data, a ... ) for use in global fishery statistics. The trade statistics for toothfish (Dissostichus eleginoides and ... ------------------------------- The fishery and trade statistics in the CCAMLR Statistical Bulletin are published annually and the ... underlying data are freely available in the public domain. The fishery statistics are based on STATLANT data ... Statistics (CWP) for use in global fishery statistics. The trade statistics for toothfish (Dissostichus ... ).There are four data tables used in the Statistical Bulletin, and these data are available in csv format ...
Document : Site Section: Data
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Report on the status of wandering, black-browed and grey-headed albatrosses at South Georgia
albatrosses were carried out at South Georgia in the 2003/04 breeding season. Wandering albatrosses were ... photography and subsequent counting on computer screen using Adobe Photoshop software. In total, an estimated ... -headed albatrosses were breeding at South Georgia in the 2003/04 season. Compared to results from a ... conducted in the mid 1980s, numbers of these two species appear to have decreased by 26% and 14 ...
Meeting Document : WG-FSA-04/71 : Author(s): S. Poncet (United Kingdom),G. Robertson (Australia), R. Phillips (United Kingdom), K. Lawton (Australia), B. Phalan, J. Croxall and P. Trathan (United Kingdom)
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ENVIRONMENTAL FORCING AND SOUTHERN OCEAN MARINE PREDATOR POPULATIONS: EFFECTS OF CLIMATE CHANGE AND VARIABILITY
potentially the location where the most rapid climate change is most likely to happen, particularly in the ... high-latitude polar regions. In these regions, even small temperature changes can potentially lead to ... major environmental perturbations. Climate change is likely to be regional and may be expressed in ... predator populations show periodicity in breeding performance and productivity, with relationships with the ...
Meeting Document : WG-EMM-08/P06 : Author(s): P.N. Trathan, J. Forcada and E.J. Murphy
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Monitoring results of marine debris at Cape Shirreff, Livingston Island during the 1995/96 Antarctic season
total of 4 251 articles with a total weight of 65.8 kg were obtained. As occurred in previous seasons ... %; metal (77 pieces), 1.81%; and paper (12 pieces), with a 0.28% From the plastic item, those used in ... at the site have increased from 0.65 articles/m2 in 1993/94 to 1.02 in 1994/95, and 1.52 in 1995/96 ... collars: two juveniles, and two pups three months old. All these animals were immovilized in order to take ...
Meeting Document : CCAMLR-XV/BG/27 : Author(s): Delegation of Chile
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Development of methods for evaluating the management of benthic impacts from longline fishing using spatially explicit production models, including model validation
Abstract: An important management objective for CCAMLR in the high seas region of the Antarctic ... extreme case studies to validate the underlying model and code. In general, the model simulations were ... that they are relatively simple to construct, run, and interpret. In most cases, the results of the ... simulations suggested that management action of areal closures in the Ross Sea region are likely to result in ...
Meeting Document : WG-FSA-10/29 : Author(s): A. Dunn, S.J. Parker and S. Mormede (New Zealand)