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Linking predator and prey behaviour: contrasts between Antarctic fur seals and macaroni penguins at South Georgia
are the two main land-based krill Euphausia superba consumers in the northern Scotia Sea. Using a ... -based (animal tracking and diet analysis) techniques, we examined variability in the foraging ecology of ... from acoustic surveys was low during summer, increasing in autumn. During the breeding season, krill ... occurred in 80% of fur seal diet samples, with fish remains in 37% of samples. Penguin diets contained the ...
Meeting Document : WG-EMM-10/P07 : Автор(ы): C.M. Waluda, M.A. Collins, A.D. Black, I.J. Staniland and P.N. Trathan
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Diet variability and reproductive performance of macaroni penguins (Eudyptes chrysolophus) at Bird Island, South Georgia
(Euphausia superba) was the main prey in 17 out of 22 years. Amphipods (Themisto gaudichaudii) were the main ... prey in 1994 and 2009, fish in 2004, and euphausiids other than E. superba (Thysanoessa spp. and E ... . frigida) in 2000. There was no clearly dominant prey group in 1999. The five-year average proportion of E ... frequency occurrence of T. gaudichaudii both increased with a decreasing proportion of E. superba in the ...
Meeting Document : WG-EMM-12/17 : Автор(ы): C.M. Waluda, S.L. Hill, H.J. Peat and P.N. Trathan (United Kingdom)
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Influence of the quality and quantity of data from a multi-year tagging program on bias and precision of biomass estimates from an integrated stock assessment – update
program, in particular the effects of the size (tag size-overlap) and numbers of tagged fish, the duration ... of the tagging program, the type of auxiliary data used in the assessment, and the catch history ... emerged within this overall trend. The results show that in the early stages of the tagging program, a ... with a low tag size-overlap, even with large numbers, is likely to result in overestimates of biomass ...
Meeting Document : WG-FSA-12/18 : Автор(ы): P.E. Ziegler (Australia)
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Предварительное предложение о создании морского охраняемого района в Области 1 ЧАСТЬ A-1: Приоритетные районы сохранения
led by Argentina and Chile. The process has resulted in the compilation, analysis, integration and ... approach in all stages of the decision making process. In particular, this paper describes the ... identification of Priority Areas for Conservation (PAC) in Domain 1- as introduced during the last EMM meeting ... in the MPA planning process and future management, Domain 1 was thought in terms of three ecoregions ...
Meeting Document : SC-CAMLR-XXXVI/17 : Автор(ы): Delegations of Argentina and Chile
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Marine debris: a persistent and emerging threat to antarctic ecosystems
Abstract: CCAMLR has had success in tackling marine debris from local sources in the Southern ... marine debris, particularly in pelagic areas, is limited. This is particularly concerning, as recent ... evidence suggests that microplastic concentrations in the Southern Ocean are higher than previously thought ... , particularly microplastics, in Antarctic ecosystems is understudied. Combatting the problem of microplastics in ...
Meeting Document : SC-CAMLR-XXXVI/BG/29 : Автор(ы): Submitted by ASOC
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Catch rates and length composition data of the longline fishery for Dissostichus eleginoides at the Prince Edward Islands: 1996/97
eleginoides made in the vicinity of the Prince Edward Islands, a South African territory in the Indian Ocean ... Sector of the Southern Ocean, surfaced early in 1996. This generated both national and international ... interest in the fishery leading to a great influx of vessels to the area. By the end of 1996 up to 40 ... vessels had already landed catches of more than 23 000 tons in South Africa and Namibia. It is against ...
Meeting Document : SC-CAMLR-XVI/BG/28 : Автор(ы): Delegation of South Africa
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The use of Port State measures to improve fisheries compliance at the international levelIssues and instruments – the CCAMLR case
approaches to port State control in order to avoid the development of “ports of convenience” and improve ... , universally applicable instruments is also gaining momentum. In any case, there is a pressing need to develop ... ) fishing. CCAMLR is generally regarded as a good regional model in the area of port State control. Hence ... , CCAMLR Members should draw on their experience in port State measures, particularly on toothfish landings ...
Meeting Document : CCAMLR-XXV/BG/29 : Автор(ы): Submitted by ASOC
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Scientific requirements for an orderly development of the krill fishery
precautionary catch limit for krill in Statistical Division 58.4.2 of 1.49 million tonnes (up from 450 000 ... supported the large increase in the precautionary catch limit, such a large increase required the inclusion ... of other elements in the conservation measure to facilitate the orderly and precautionary development ... ensure that they are in place prior to any problems arising in the fishery. The rationale for the timing ...
Meeting Document : WG-EMM-07/23 : Автор(ы): A. Constable, G. Slocum and S. Nicol (Australia)
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Defining smaller management areas within CCAMLR
and highlights a work program in this development. It provides the theoretical foundation for ... but should be sufficiently self-contained such that fishing in that unit does not inadvertently affect ... predators being monitored in other units. Harvesting units are defined and a number of additional divisions ... species, notably krill, in other harvesting units. The manner in which predator units can be used to help ...
Meeting Document : WG-EMM-01/52 : Автор(ы): A.J. Constable and S. Nicol (Australia)
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A method for spreading the risk of localised effects of catches of Antarctic krill up to the trigger level, during the development of stage 2 of feedback management
Abstract: Conservation Measure 51-07 provides an interim distribution of the trigger level in the ... fishery for Euphausia superba in Statistical Subareas 48.1, 48.2, 48.3 and 48.4. It was established ... because the Commission, in the preambular paragraphs to that measure, recognised that localised catches up ... disproportionately affected by fishing activity”. CM 51-07 is to be “ reviewed in 2016 with the intent of ensuring ...
Meeting Document : WG-EMM-16/69 : Автор(ы): A.J. Constable, S. Kawaguchi and M. Sumner
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