Search results
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Diet of the cape petrel Daption capense during the post hatching period at Laurie Island, South Orkney Islands, Antarctica
Abstract: The diet of the Cape petrel Daption capense was investigated at Laurie Island, South ... contents of adults and regurgitate of chicks were sampled during the post-hatching period. The analysis ... in terms of frequency of occurrence. Fish prey formed near 64% by mass, with krill forming 35.8 ... . Amphipods were present in lower numbers and Cephalopods were only a very small portion of the diet of Cape ...
Meeting Document : WG-EMM-96/44 : Author(s): Montalti, D., Coria, N.R., Soave, G.E.
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RAPID WARMING OF THE OCEAN AROUND SOUTH GEORGIA,SOUTHERN OCEAN, DURING THE 20TH CENTURY: FORCINGS, CHARACTERISTICS AND IMPLICATIONS FOR LOWER TROPHIC LEVELS
Abstract: The Southern Ocean is known to have warmed considerably during the second half of the ... 20th century but there are few locations with data before the 1950s. In addition, assessments of change ... in this region are hampered by the strong seasonal bias in sampling, with the vast majority of data ... collected during the austral summer. However, oceanographic measurements near South Georgia span most of the ...
Meeting Document : WG-EMM-08/P03 : Author(s): M.J. Whitehouse, M.P. Meredith, P. Rothery, A. Atkinson, P. Ward and R.E. Korb
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A fine-scale model of the overlap between penguin foraging demands and the krill fishery in the South Shetland Islands and Antarctic Peninsula
Abstract: CCAMLR has been using the total catch of krill taken within 100 km of penguin colonies ... in their breeding season (December to March) as an index of overlap between the potential foraging ... areas of penguins and the distribution of the krill fishery in Subarea 48.1 (South Shetland Islands). As ... this index has proven unsuitable for a number of reasons, an alternative method of calculating an index ...
Meeting Document : WG-EMM-Stats-96/06 : Author(s): Phegan, G., Agnew, D.J.
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Performance and geometry of the FP-120 trawl used during the UK 1993/94 fish stock assessment survey around South Georgia, Subarea 48.3
Abstract: Methods for the calculation of the horizontal opening (swept area) of a bottom trawl ... are discussed. Details of the Scanmar trawl monitoring equipment used for making in situ measurements ... of horizontal opening and headline height of the FP-1 20 trawl during the 1993/94 UK fish stock ... the calculation of horizontal opening from other, more easily obtained measurements, such as tow speed ...
Meeting Document : WG-FSA-94/23 : Author(s): G. Pilling and G. Parkes (United Kingdom)
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A condensed history and document of the method used by CCAMLR to estimate krill biomass (B0) in 2010
Abstract: Antarctic krill (Euphausia superba) are considered to be one of the key species in the ... Antarctic marine food web, being prey to a wide variety of dependent species as well as being commercially ... harvested. The commercial exploitation of krill is managed under the direction of CCAMLR (Commission for the ... Conservation of Antarctic Marine Living Resources), utilising results derived from the CCAMLR generalised yield ...
Meeting Document : WG-EMM-16/38 : Author(s): S. Fielding, A. Cossio, M. Cox, C. Reiss, G. Skaret, D. Demer, J. Watkins and X. Zhao
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Development of an algorithm designed to assess observer data quality and performance
Abstract: As part of the Secretariat task to ensure the quality and consistency of the data ... observers in their logbooks. A first version of the algorithm was tested on four randomly selected longline ... , as well as value inconsistencies through a limited set of logical tests. For each logbook inspected ... , a text report indicating the locations of faulty entries, a set of figures to display length and ...
Meeting Document : WG-SAM-13/40 : Author(s): Secretariat
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Fishing behaviour of Chinese krill fishing fleet
Abstract: Understanding the fishing behavior of a kind of fishery is a very important part of ... relationship between distance and frequency distribution of the adjacent krill fishing positions were analyzed ... in the subareas of the Commission for Conservation of Antarctic Marine Living Resources (CCAMLR ... subareas 48.1, 48.2 and 48.3). The frequency of distances between consecutive hauls shows a heavy-tailed ...
Meeting Document : WG-EMM-17/45 : Author(s): R. Wang and G.P. Zhu
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A TALE OF TWO ISLANDS: CONTRASTING FORTUNES FOR SUBANTARCTIC SKUAS AT THE PRINCE EDWARD ISLANDS
Abstract: Subantarctic skuas Catharacta antarctica are key predators of burrowing petrels at sub ... -Antarctic islands, and can be used to monitor the health of burrowing petrel populations. A survey of skuas ... December 2001. Prince Edward Island (46 km2) remains free of introduced mammals, whereas Marion Island (290 ... km2) had a feral population of cats from the 1950s to 1980s, and still supports a large population of ...
Meeting Document : WG-EMM-10/P3 : Author(s): P.G. Ryan, P.A. Whittington and R.J.M. Crawford
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Increase in relative abundance of fjord Notothenia rossii in Potter Cover, South Shetland Islands, after the decrease associated with commercial fishing in the area
Abstract: A monitoring program of demersal fish in inshore sites of the South Shetland Islands ... has continued in Potter Cove from 1991 to 1999, covering a continuous sampling period of sixteen years ... of fjord fishes of the species Notothenia rossii and Gobionotothen gibberifrons in relation to the ... previous study, is still evident. An increasing trend of N. rossii catches was observed, but the actual ...
Meeting Document : WG-FSA-99/30 : Author(s): E.R. Barrera-Oro, E.R. Marschoff and R.J. Casaux (Argentina)
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A review of by-catch in CCAMLR exploratory toothfish fisheries
Abstract: Mitigating the adverse affects of commercial fishing on the environment is an integral ... responsibility of fisheries globally. Efforts to reduce bycatch, to exploit previously unfavourable species and ... Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) is widely recognized for its ... thorough and effective management of Southern Ocean toothfish fisheries, especially in eliminating ...
Meeting Document : WG-FSA-14/16 : Author(s): E. McClure, K. Reid (Secretariat)