Search results
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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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SC-CAMLR-XXXV
Committee NEW – Videos in our support forum The Secretariat has developed instructional videos about the ... create, access and interact with report text. These videos are available in our CCAMLR Support Forum ... Establishing time-limited Special Areas for Scientific Study in newly exposed marine areas following ice shelf ... retreat or collapse in Subarea 48.1, Subarea 48.5 and Subarea 88.3 Delegation of the European Union and ...
Meeting
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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)
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Modelling the impact of krill fishing on seal and penguin colonies
with the foraging area of land-based predators such as seals and penguins in the Antarctic Peninsula ... region. The dynamics of krill in this region are strongly influenced by advective processes. A key ... predator colonies. In order to estimate the krill production actually available for predator consumption ... , it is necessary not only to consider “snapshot” survey estimates of krill abundance in the vicinity ...
Meeting Document : WG-EMM-05/14 : Author(s): É.E. Plagányi and D.S. Butterworth (South Africa)
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Monitoring a marine ecosystem using responses of upper trophic level predators
level predators that specialise in foraging upon krill (Eupuasia superba Dana). These variables included ... . Individual variables had widely varying influence upon the CSI but, in general, those with longer time series ... offspring growth tended to explain the greatest proportion of the variability in the CSI and this was ... followed by variables representing diet. 4. There were 3 years in which the CSI showed extreme and ...
Meeting Document : WG-EMM-01/25 : Author(s): I.L. Boyd and A.W.A. Murray (United Kingdom)