Search results
-
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)
-
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)
-
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
-
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
-
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)
-
RESOURCES EVALUATION OF ANTARCTIC KRILL EUPHAUSIA SUPERBA DANA USING AREAL TRAWLING AND HYDRO-ACOUSTIC DATA
analyses procedures applied for trawling and hydro-acoustic sampling have to in compliance with the rules ... revealed. Standard measures for the population densities of krill in natural habitat are not available ... , thus it is principally impossible to structure systems and random errors in evaluating process, to ... krill and minimizing miscalculations in evaluations of congestions. Evaluations regime applied for the ...
Meeting Document : WG-SAM-08/P01 : Author(s): L.A. Kovalchuk (Ukraine)
-
Examination of the CCAMLR toothfish GLM
CPUE in Subarea 48.3 are investigated. Problems with crossover between the essentially summer fishery ... nationalities, coupled with the existence of the experimental fishery in 1994, lead us to suggest that future ... analyses should be restricted to GLMs based on winter data alone. Unfortunately, this does result in there ... different sizes on the shelf slope. A winter GLM is described which includes a depth factor, and is used in ...
Meeting Document : WG-FSA-98/35 : Author(s): G.P. Kirkwood and D.J. Agnew (United Kingdom)
-
SUMMARY OF FRENCH PAPERS REGARDING RECOMMENDATIONS MADE BY THE SCIENTIFIC COMMITTEE WITH RESPECT TO THE INCIDENTAL MORTALITY OF SEABIRDS
use and develop effective mitigation measures in the French EEZ fisheries and that France continues to ... during longline fishing in the French EEZs are the only remaining substantial seabird by-catch in the ... mortality of seabirds in accordance with CCAMLR policies and practices'. This document summarises the ... papers submitted by France in response to the recommendations recorded in paragraph 5.6 of the Scientific ...
Meeting Document : SC-CAMLR-XXVII/10 : Author(s): Delegation of France
-
Have Antarctic toothfish returned to McMurdo Sound?
Abstract: A dramatic reduction in catch rates of Antarctic toothfish in McMurdo Sound, Antarctica ... , has led to conclusions that the commercial bottom longline fishery for toothfish in the Ross Sea has ... , results from a new monitoring programme for Antarctic toothfish and other top predators carried out in ... McMurdo Sound in 2014 have shown toothfish catch rate, fish size and fish age similar to those observed ...
Meeting Document : WG-FSA-15/P01 : Author(s): S.J. Parker, S. Mormede, A.L. DeVries, S.M. Hanchet and R. Eisert
-
SCAR Report on Marine Acoustics and the Southern Ocean
workshop on marine acoustic studies at the University of Cadiz, Spain in January 2006. The purpose of the ... workshop was to review improvements in knowledge and understanding of the interactions between marine ... mammals and noise generated by human activities in the Southern Ocean. The workshop revised the original ... risk assessments for particular acoustic equipment currently used in the Southern Ocean, e.g acoustic ...
Meeting Document : CCAMLR-XXV/BG/23 : Author(s): Submitted by SCAR