Search results
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DETECTION OF VULNERABLE MARINE ECOSYSTEMS IN THE SOUTHERN SCOTIA ARC (CCAMLR SUBAREAS 48.1 AND 48.2) THROUGH RESEARCH BOTTOM TRAWL SAMPLING AND UNDERWATER IMAGERY
system. Using standardized densities of VME taxa from bottom trawl samples, we propose one possible ... of VME taxa from bottom trawl samples, we propose one possible trigger level that could be used ...
Meeting Document : WG-EMM-09/32 : Author(s): S.J. Lockhart and C.D. Jones (USA)
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A method for preparing large numbers of otolith sections for viewing by scanning electron microscope
reported on a method used for processing large numbers of otoliths using a scanning electron microscope ... Abstract: In an investigation of the age structure of a population of Notothenia coriiceps ... (SEM). Compared with previous SEM techniques, which normally prepare otoliths individually for viewing ... , this method gave enhanced resolution particularly for discerning edge structures, and thus may ...
Meeting Document : WG-FSA-93/07 : Author(s): J.R. Ashford, K. Robinson and M.G. White (United Kingdom)
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PRELIMINARY RESULTS OF TRIALS TESTING MODIFIED LONGLINE GEAR ‘TROTLINES’ IN PRESENCE OF CETACEANS IN SUBAREA 48.3
composition on Spanish system longlines with those on ‘trotlines’ fitted with cetacean exclusion devices ... (cachalotera nets). 2. CPUE (kg/1000 hooks and kg/set) was greater for trotlines than Spanish system lines when ... potential of this gear to reduce cetacean depredation. 3. By-catch to catch ratio was greater by number for ... Spanish system lines when cetaceans were present during hauling. 4. A large percentage of skates caught on ...
Meeting Document : WG-FSA-08/44 : Author(s): R.E. Mitchell, J. Clark, P. Reyes, L. Jones, J. Pearce, C.E. Edwards and D. Agnew (UK)
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Genetic variation among populations of the Antarctic toothfish: evolutionary insights and implications for conservation
Abstract: Commercial fishing is having an increasingly negative impact on marine biodiversity ... with over 70% of the world’s fish stocks being fully exploited and in many cases overexploited. On top ... of this, the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) has ... granted commercial fishing permits in the most remote marine environment on earth, the high latitude ...
Meeting Document : WG-FSA-01/69 : Author(s): R.W. Parker, K.N. Paige and A.L. DeVries (USA)
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Evaluating methods to assess yield of Patagonian toothfish (Dissostichus eleginoides) in CCAMLR Division 58.5.2
developed to evaluate possible management strategies for the Patagonian toothfish fishery in Division 58.5.2 ... . As requested by the Subgroup on Assessment Methods, we elaborate the plausible operating models ... currently being used for Patagonian toothfish in Division 58.5.2, the types of data and observations of the ... summarise some preliminary results as well as the details of continuing work for assisting the special ...
Meeting Document : WG-FSA-05/69 : Author(s): A.J. Constable, I. Ball, B. Raymond, S. Candy, R. Williams (Australia) and A. Dunn (New Zealand)
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Dates of spawning of Antarctic euphausiids
Euphausiids. The original and literature data on age composition of larvae gave the possibility to calculate ... waters of different origin and on different latitudes euphausiids begin to spawn in a usual succession ... exists for the period of the most intensive spawning. The termination of spawning in the waters of high ... -latitude origin is earlier then in the waters of an other type. The correlation with a geographical ...
Meeting Document : SC-CAMLR-VIII/BG/24 : Author(s): Delegation of USSR
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COMPARING CEMP INDICES TO INFORM FEEDBACK MANAGEMENT OF THE ANTARCTIC KRILL FISHERY
efficiently via the comparative approach. Specifically, changes due to an impact in one population can ... ” population. As the states of these monitored populations change relative to each other, an impact in one ... efficiently via the comparative approach. Specifically, changes due to an impact in one population can ... other, an impact in one population will cause the relative difference between them to change. Comparing ...
Meeting Document : WG-EMM-11/25 : Author(s): J.T. Hinke and G.M. Watters (USA)
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Some thoughts on our work towards establishing feedback management scheme for krill fishery
Abstract: I would like to initiate discussions at this year’s WG-EMM that focus on how we ... are going to engage a larger group of scientists working for a greater proportion of the year to develop FBM ... I would like to initiate discussions at this year’s WG-EMM that focus on how we are going ... to engage a larger group of scientists working for a greater proportion of the year to develop FBM. Part ...
Meeting Document : WG-EMM-13/04 : Author(s): S. Kawaguchi (Convener, WG-EMM)
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On the estimation of some demographic parameters for Adelie penguins
that such breeding may be deferred one year if conditions are poor. A Bayesian approach for estimation of the model ... be deferred one year if conditions are poor. A Bayesian approach for estimation of the model parameters is put ... of the factors of lower adult survival rates in the year of first breeding, and the possibility ... of lower adult survival rates in the year of first breeding, and the possibility that such breeding may ...
Meeting Document : WG-EMM-95/42 : Author(s): Thomson, R.B., Butterworth, D.S.
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Species variability and population structure of Euphausiacea in Admiralty Bay (King George Island; South Shetland Islands) during Antarctic summer
, is an interesting area for that kind of biological study. Moreover, King George Island, where ... three Pygoscelis penguin species. The data presented here is based on samples collected during an ... Euphausia superba, E. frigida, E. crystallorophias and Thysanoessa macrura. Th. macrura, compared for ... result, population structure analyses were possible only for the Th. macrura individuals. The data also ...
Meeting Document : WG-EMM-14/60 : Author(s): A. Panasiuk-Chodnicka, J. Wawrzynek and M. Iwona Żmijewska (Poland)