Search results
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COMPARISON OF THE PRECISION OF DIRECT VERSUS AGE LENGTH KEY METHODS OF ESTIMATING CATCH-AT-AGE PROPORTIONS
) of fish in the catch, determining the ages in the sample, and calculating proportions in each age ... class. This “direct” method can be replaced by the age length key (ALK) method if there are in addition ... the extra information in the LF sample to calculate proportions by age by multiplying the probability ... otoliths removed until a fixed number of fish in each length bin have been obtained and further sampling ...
Meeting Document : WG-FSA-09/22 Rev. 1 : Author(s): S.G. Candy (Australia)
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Abundance and trends of Type B killer whales (Orcinus orca) around the western Antarctic Peninsula
is required to understand these trophic dynamics. The apex predator inWAP coastal waters is the killer whale ... to understand these trophic dynamics. The apex predator inWAP coastal waters is the killer whale (Orcinus orca ...
Meeting Document : WG-EMM-18/16 : Author(s): H. Fearnbach, J.W. Durban, D.K. Ellifrit and R.L. Pitman
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Fishing gear, marine debris and oil associated with seabirds at Bird Island, South Georgia, 2002/03
such annual report. As in most previous years, more items of fishing gear (mostly longlining gear) and ... debris (mostly plastics) were found in association with wandering albatrosses than with any other species ... entanglements with longline hooks and line. Eleven cases of contamination with oil were recorded, in wandering ... , black-browed and grey-headed albatrosses. In all cases, no more than about 1-2 % of the birds’ plumage ...
Meeting Document : SC-CAMLR-XXII/BG/09 : Author(s): Delegation of the United Kingdom
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Preliminary results of a feeding trial on the blue-eyed shag Phalacrocorax atriceps
. The otoliths identified in pellets were affected by the digestive process and consequently the fish ... species were differentialy underrepresented in number and size (length/mass). Except Gobionotothen ... gibberifrons and Nototheniops nudifrons all the species were underestimated in number (N. rossii fully). G ... that experimentally observed in other not antarctic shag species. Algae and ploychaetes were found in ...
Meeting Document : WG-CEMP-94/29 : Author(s): R. Casaux, M. Favero, E. Barrera-Oro and P. Silva (Argentina)
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A brief outline of the biology of the Antarctic silverfish, Pleuragramma antarcticum Boulenger, 1902 (Nototheniidae) from the Antarctic Indian Ocean
species in the outer waters of Antarctica. In the Indian sector of the Southern Ocean there are at least ... three relatively isolated groups. Fish aged from 0+ to 3+ years live in the epi- mesopelagic zone where ... when they reach 13-16 cm in length and 4-6 years of age. Males reach maturity at 12-18 cm in length and ... highest for high-latitude Antarctic fish. Spawning occurs in the winter-spring period. P. antarcticum is a ...
Meeting Document : WG-FSA-92/11 Rev. 1 : Author(s): V.V. Gerasimchuk (Ukraine)
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Climate change and precautionary spatial protection: ice shelves
Abstract: Regional climate change is now known to be well established in the Antarctic ... , particularly in the Antarctic Peninsula region. One of the most evident signs of climate change has been ice ... shelf collapse; overall, 87% of the Peninsula’s glaciers have retreated in recent decades. Ice shelf ... to return that were last present during the last interglacial, a warmer period than at present. In ...
Meeting Document : SC-CAMLR-XXX/13 : Author(s): Delegation of the United Kingdom
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Report on Argentine CCAMLR Subarea 48.3 survey: fish
Abstract: Information on biological aspects of the finfish catches obtained in the survey of BIP ... Dr. E L Holmberg, conducted around Shag Rocks and the South Georgias Islands in April-May 2013, is ... in the shelf of the South Georgias Islands. Total lengths ranged from 4 to 55 cm, 7 to 63 cm, 9 to 51 ... structure, in a relation 1:1 in all the species analyzed. Two length-weight relationships were estimated for ...
Meeting Document : WG-FSA-13/62 : Author(s): A. Zavatteri and A. Giussi (Argentina)
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Report on 2015 Activities of the Southern Ocean Observing System relevant to the work of CCAMLR
Abstract: The Southern Ocean Observing System was established by SCAR and SCOR in 2011 and has ... been steadily developing its work. In this paper, we summarise the outcomes of strategic planning over ... will be important to CCAMLR in providing data relevant to conservation and fisheries in different parts ... . These are described more fully in the paper. In conclusion, we discuss the value of developing a ...
Meeting Document : WG-EMM-15/61 : Author(s): A. Constable (Australia), O.R. Godø (Norway) and L. Newman (SOOS)
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Criteria for the Selection of Marine Protected Areas (MPAs)
Abstract: Selection criteria have been widely advocated as a tool to assist in the identification ... ). The application of selection criteria can assist in evaluating candidate sites, prioritising areas ... criteria might be applied in conjunction with bioregionalisation analysis to support the systematic ... selection criteria for protected areas, both in the context of the Antarctic Treaty System and in other ...
Meeting Document : SC-CAMLR-XXVI/BG/24 : Author(s): Delegation of the United Kingdom
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Report on the activities of the Scientific Committee on Antarctic Research (SCAR) 2005/06SCAR Observer to CCAMLR
Delegates Meeting and Open Science Conference held in Hobart in July 2006, progress with the new Evolution ... and Biodiversity in the Antarctic (EBA) and the Census of Antarctic Marine Life (CAML) projects. CAML ... to gather information on marine biodiversity in Antarctic and SCAR has established a new Action Group ... on marine acoustic studies at the University of Cadiz, Spain in January 2006. A summary is provided ...
Meeting Document : CCAMLR-XXV/BG/22 : Author(s): SCAR Observer to CCAMLR(G. Hosie, Australia)