Search results
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Preliminary results of a feeding trial on the blue-eyed shag Phalacrocorax atriceps
Abstract: Local fish species were used to feed a captive blue-eyed shag Phalacrocorax atriceps ... otolith-lengths. The shag produced a total of 16 pellets, with a frequency of 1 every 2.5 days. It ... ingested willingly a mean ration equivalent to 31% of its mass, which is a higher energy requirement than ... -Oro and P. Silva (Argentina) Title: Preliminary results of a feeding trial on the blue-eyed shag ...
Meeting Document : WG-CEMP-94/29 : Author(s): R. Casaux, M. Favero, E. Barrera-Oro and P. Silva (Argentina)
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Towards a Minimum Realistic Model for investigating trophic relationships between Antarctic toothfish and demersal fish in the Ross Sea, Antarctica
Abstract: We report on progress towards developing a Minimum Realistic Model for investigating ... in the Ross Sea, Antarctica. These demersal fish are known to form a part (in some cases a ... substantial part) of the diet of Antarctic toothfish of a size commonly taken by the Ross Sea fishery and are ... and toothfish. A Minimum Realistic Model is the most appropriate modeling approach to investigate what ...
Meeting Document : WG-SAM-10/21 : Author(s): M.H. Pinkerton, S. Mormede and S.M. Hanchet (New Zealand)
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Antarctic protected areas system: proposal for a new protected area at Edmonson Point, Wood Bay, Ross Sea
Abstract: The paper contains a proposal and draft management plan for a new Protected Area for ... ATCM established an Intersessional Contact Group to review the plan over 2004-05, a view to ... consideration for adoption at the XVIII ATCM in 2005. Because the Management Plan proposes the inclusion of a ... areas system: proposal for a new protected area at Edmonson Point, Wood Bay, Ross Sea Approval ...
Meeting Document : CCAMLR-XXIII/41 : Author(s): Delegation of Italy
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An assessment strategy evaluation framework for testing the application of a CASAL based management system to the HIMI fishery
Abstract: A useful way of testing assessment methodology and related decisions is through the ... framework of management strategy evaluation and the simpler form of assessment strategy evaluation. Such a ... entire management system can be evaluated against a number of suitably chosen performance measures. This ... paper defines the term Assessment Strategy Evaluation (ASE) and provides a practical framework for ...
Meeting Document : WG-SAM-07/13 : Author(s): I.R. Ball and S.G. Candy (Australia)
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A fish stock assessment survey design for Subarea 48.1
Abstract: There is a lack of information regarding the abundance of exploitable finfish in ... Subarea 48.1. A comprehensive, bottom trawl survey offish stocks in Subarea 48.1 would make it easier for ... Scientific Committee in giving management advice to the Commission. A stratified random survey is proposed ... ). A rule is derived from catch rate data obtained during previous stock assessment surveys around ...
Meeting Document : WG-FSA-92/07 : Author(s): G. Watters (USA)
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Using vessel acoustics to detect diving patterns of krill foraging predators automatically: Development of a novel method for quantifying impact of krill fishing on seals and penguins
Abstract: The aim of this work was to assess the possibilities of automatically generating a ... dataset of dive behaviour of air-breathing predators, based on acoustic data from a monitoring survey and ... of diving predators in the data is feasible. A relatively low detection probability of our algorithms ... a reasonable level of precision, data on the dive behaviour of air-breathing predators from the echo ...
Meeting Document : WG-EMM-15/25 : Author(s): T.A. Klevjer, O.R. Godø and B. Krafft (Norway)
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A model at the level of the foraging trip for the indirect effects of krill (Euphausia superba) fisheries on krill predators
Abstract: We present a model at the level of the foraging trip for the effects of a fishery on ... krill (Euphausia superba) predators, using the Adelie penguin (Pygoscelis adeliae) as a model organism ... of penguin reproductive success and adult survival in the absence or presence of a fishery. The ... according to an age-structured, stochastic recruitment model. Furthermore, there is a spatial-temporal ...
Meeting Document : WG-EMM-98/48 : Author(s): M. Mangel and P.V. Switzer (USA)
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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
to the trigger level may affect krill predators. They wished to establish a spatial distribution of ... in Area 48 to develop a framework for the review of CM51-07. We first consider the requirements for ... the conservation measure. We use these requirements as the basis for a risk assessment method to ... an approach for undertaking the review and providing advice on a future spatial distribution of the ...
Meeting Document : WG-EMM-16/69 : Author(s): A.J. Constable, S. Kawaguchi and M. Sumner
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A TALE OF TWO ISLANDS: CONTRASTING FORTUNES FOR SUBANTARCTIC SKUAS AT THE PRINCE EDWARD ISLANDS
-Antarctic islands, and can be used to monitor the health of burrowing petrel populations. A survey of skuas ... at the Prince Edward Islands was conducted during December 2008, repeating a previous survey in ... km2) had a feral population of cats from the 1950s to 1980s, and still supports a large population of ... breeding pairs at Prince Edward Island increased from 2001 to 2008, probably as a result of better coverage ...
Meeting Document : WG-EMM-10/P3 : Author(s): P.G. Ryan, P.A. Whittington and R.J.M. Crawford
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IDENTIFYING PATTERNS IN DIET OF MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) AT SOUTH GEORGIA USING BOOTSTRAPPED CONFIDENCE INTERVALS OF A DIETARY INDEX
2239 icefish (130-560 mm total length) were examined. A bootstrapping technique was used to calculate ... ) fish tended to prey on a higher proportion of T. gaudichaudii and small euphausids such as Thysanoessa ... sp. and took smaller quantities of E. superba. In a season of poor krill availability (summer of 2003 ... was followed by a large reduction (> 80%) in the estimated annual biomass of C. gunnari the ...
Meeting Document : WG-FSA-08/29 : Author(s): C.E. Main, M.A. Collins, R. Mitchell and M. Belchier (UK)