Search results
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“Sailbuoy for krill” – a concept for autonomous commercial and scientific monitoring of the krill fishing in Antarctica
fishery in the Antarctic. The system will be equipped with echosounder and environmental sensors and will ... survey krill hotspots (in areas that are fished and unfished) and feed science and industry with data in ... productive interaction with potential users to ensure that the tailored system includes most of the users ...
Meeting Document : WG-EMM-18/15 : Author(s): O.R. Godø, G. Pedersen, D. Peddie, G. Skaret, A. Lowther, F. Grebstad and A. Lohrmann
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Precautionary, ecosystem-based management for the Antarctic krill fishery: a work in progress
enhance its precautionary management of the krill fishery in line with Convention objectives. This paper ... compliance as they relate to the krill fishery. The paper concludes with a number of recommendations to make ... for reporting catches with increased precision at two-hour intervals. Author(s): Submitted by ASOC ...
Meeting Document : SC-CAMLR-XXXVII/BG/17 : Author(s): Submitted by ASOC
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Fish Heaven: a Monte Carlo, spatially explicit single species fishery model for the testing of parameter estimation methods
basic features of standard fish modeling with a number of optional extras. It was designed within an ... was designed with the view of testing the efficacy of different statistical sampling regimes given ... allow environmental simulations with fishing while capturing various statistics about the status of the ... system. Analysis of the output must be done with a separate piece of software, such as a statistical ...
Meeting Document : WG-FSA-00/36 : Author(s): I. Ball and A. Constable (Australia)
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DEVELOPMENT OF SPATIALLY EXPLICIT AGE-STRUCTURED POPULATION DYNAMICS OPERATING MODELS FOR ANTARCTIC TOOTHFISH IN THE ROSS SEA
program allows implementation of an aggregate movement model for use with large numbers of areas as a ... observations. Estimates of parameters when the operating models were used as estimation models with ... -mature appeared to be sensible, with a clear pattern that the proportions mature were a function of ... conflict with assumptions of known abundance in the model and the abundance information inherent in the tag ...
Meeting Document : WG-SAM-09/18 : Author(s): A. Dunn, S. Rasmussen and S. Hanchet (New Zealand)
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Further development of coarse- and medium-scale spatially explicit population dynamics operating models for Antarctic toothfish in the Ross Sea region
program allows implementation of an aggregate movement model for use with large numbers of areas as a ... when the operating models were used as estimation models with observations from the Ross Sea Antarctic ... sensible, with a clear pattern that the proportions mature were a function of location and age. Tag release ... and recapture data were less well fitted by the models due, in part, to the conflict with assumptions ...
Meeting Document : WG-FSA-12/44 : Author(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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Results of an acoustic investigation of Antarctic krill, Euphausia superba, biomass-density in the Elephant Island area in January/February 2001
to Feb 4th 2001 are presented. Data were collected with a SIMRAD EK60 Scientific Echo Sounder ... stratum. The estimated average agrees well with estimates made by the U.S. AMLR program from two surveys ... (15.6 g/m2 and 12.8 g/m2 respectively) performed the same field season in partly the same area, and with ...
Meeting Document : WG-EMM-02/30 : Author(s): M.A. Thomasson (Sweden), J.H. Emery (USA), J. Rademan (South Africa), R.P. Hewitt (USA) and B.I. Bergström (Sweden)
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Research plan for the Spanish exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2: Update of stage 2 (2013/14 season) and preliminary results of stage 1 (2012/13 season) according to WG-SAM advice
estimation of the biomass of the SSRUs (B SSRU), maximal and minimal, considering areas with high and low ... densities, with a better fit of the regression and lower residuals than the previous analysis. An ... analysis of relevant sea-ice conditions in the last 11 seasons in these areas along with a summary of the ...
Meeting Document : WG-FSA-13/15 : Author(s): R. Sarralde, L.J López Abellán and S. Barreiro (Spain)
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Re-analysis of CPUE in both species of toothfish in 48.6 area
Patagonian toothfish presented a high proportion with sets in which both species are present, and thus, an ... anomalous CPUE. The same conclusion with previous work arise, the CPUE have little or none information as ... index of abundance and thus, it is highly recommendable to continue with the collection of the data by ...
Meeting Document : WG-FSA-13/63 : Author(s): R. Wiff, J.C. Quiroz (Chile) and R. Scott (United Kingdom)
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A false positive in the CCAMLR tag overlap statistic arising from low catch volume and consequent limited sample size
of fish tagged did not match closely with that of the catch resulting in a the overlap statistic, as ... where the noise associated with such low numbers of fish triggers false positives in the tag statistic ... exploratory fisheries and small catches with a consequent low total tag number increase in frequency. Author(s ...
Meeting Document : WG-FSA-14/31 : Author(s): C. Darby (United Kingdom)
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Results of the Dissostichus spp. new fisheries projects in the Antarctic region (CCAMLR Statistical Subareas 48.1, 48.2 and 88.3)
were used for the operations, with variable quantities of fishhooks (1 440-4 320), No. 9 Mustard Kirby ... spp. yielded small quantities in the three subareas, with values of only 5.7 g/hook (Subarea 88.3 ... ), 19.1 g/hook (Subarea 48.1) and 3.0 g/hook (Subarea 48.2), with a total average of 11.1 g/hook. Author(s ...
Meeting Document : SC-CAMLR-XVII/BG/07 Rev. 1 : Author(s): Delegation of Chile