Resultados de la búsqueda
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A simulation study of krill fishing by an individual Japanese trawler
Japanese krill trawler over a half-month period, and the output is compared to statistics from a sample of ... , and their performance investigated in response to six different ways in which the overall krill ... probably be reliable only for detecting changes in within-concentration krill distribution parameters ... , distribution and density of krill concentrations. Priority for further analyses should be given to examination ...
Meeting Document : SC-CAMLR-VI/BG/38 : Autor(es): D.S. Butterworth (United Kingdom)
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Spatio-temporal variability in the winter diet of larval and juvenile Antarctic krill, Euphausia superba, in ice-covered waters
Abstract: Antarctic krill Euphausia superba is an ecological key species in the Southern Ocean ... and a major fisheries resource. The winter survival of age class 0 (AC0) krill is susceptible to ... limited. We studied the spatio-temporal variability of the diet in 4 cohorts of AC0 krill in the Northern ... show that the diet of overwintering AC0 krill varies significantly in space and time. Variability in ...
Meeting Document : WG-EMM-18/P18 : Autor(es): F.L. Schaafsma, D. Kohlbach, C. David, B.A. Lange, M. Graeve, H. Flores and J.A. van Franeker
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An ecological risk assessment of current conservation measures for krill fishing in East Antarctica (CCAMLR Divisions 58.4.1 and 58.4.2)
involved in any redevelopment of a commercial krill (Euphausia superba) fishery in CCAMLR Divisions 58.4.1 ... measures that are relevant to Divisions 58.4.1 and 58.4.2 sufficiently mitigate the risk of a krill fishery ... disproportionately concentrating catches in areas that are also important to krill predators. In particular, this ... , crabeater seals and Adélie penguins, in parallel with the currently agreed krill biomass estimates across ...
Meeting Document : WG-EMM-18/37 : Autor(es): N. Kelly, L. Emmerson, S. Kawaguchi, C. Southwell and D. Welsford
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ANALYSIS OF SCIENTIFIC OBSERVER DATA FROM THE RUSSIAN KRILL TRAWLER 'MAXIM STAROSTIN' IN THE SOUTH ORKNEY ISLANDS REGION (SUBAREA 48.2) DURING THE SEASON 2008-2009
fishing operations for krill in the Convention area. The vessel used both conventional and continuous ... size/sex composition of the krill catches, bycatch, spatial distribution and biological condition of ... krill. This paper provides initial analysis of the ' Maxim Starostin ' catch data collected ... krill aggregations in South Orkney Islands region. These aggregation have complex size structure and ...
Meeting Document : WG-EMM-09/29 : Autor(es): D. Sologub (Russia)
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Krill stock evaluation with data from commercial fishing vessels
Abstract: Commercial krill fishing vessels can provide useful data for science and management ... within a time-frame of a week and linked to krill length data from the same period. The data from the ... fishing operations were very different from transect data collected just some days before. Krill ... period. The data have the potential of providing information about local krill depletion, fishing ...
Meeting Document : WG-EMM-12/63 : Autor(es): G. Skaret (Norway), J. Moir Clark (United Kingdom), O.R. Godø, R.J. Korneliussen, T. Knutsen, B.A. Krafft and S.A. Iversen
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Results of scientific observation in Antarctic krill fishery in 2010/11: I. state of observer deployment and data collection
Abstract: We analyzed the 2010/11 krill observer data to confirm the outcome of recent revisions ... of krill observation scheme. This paper summarizes the status of observer deployment, sampling ... protocol and data collection in krill fisheries in 2010/11. All the 12 krill fishing vessels that operated ... , the coverage of krill biological sampling for hauls and the number of krill sampled for biological ...
Meeting Document : WG-EMM-12/65 : Autor(es): M. Kiyota and T. Okuda (Japan)
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Subdivision of large CCAMLR Statistical Areas for the management of the krill fishery
relevance to the management of the krill fishery. A rationale for developing some new areas is developed ... based on data on krill distributions. The overall aim of the exercise was to reduce the large size of ... many of the existing statistical areas to the point where all areas where krill occur could be surveyed ... by a single vessel. Areas where krill appeared to be generally absent were separated from those areas ...
Meeting Document : SC-CAMLR-XX/BG/24 : Autor(es): Delegation of Australia
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THE USE OF PATENT DATABASES TO DETECT TRENDS IN THE KRILL FISHERY
Abstract: Trends in the krill fishery are currently informed by data on annual catches and by the ... information from the krill industry. This paper uses publicly available patent databases to examine both the ... number and type of patents related to krill that are lodged annually. This information matches well with ... database be taken over by the Secretariat so that they can maintain an annual register of krill related ...
Meeting Document : SC-CAMLR-XXVIII/BG/15 : Autor(es): Delegation of Australia
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A comparison between the estimated density of krill from an acoustic survey with that obtained by scientific nets on the same survey
Abstract: This work presents the initial comparative analysis of acoustic and net haul krill ... part of a hydroacoustic biomass survey for Antarctic krill in CCAMLR Division 58.4.1. The acoustic ... krill density estimates were consistantly larger than the net estimates, otherwise no relationship was ... between acoustic and net krill density estimates. This variation was reduced by subsampling the data set ...
Meeting Document : WG-EMM-97/43 : Autor(es): Pauly, T., Higginbottom, I., Hosie, G., de la Mare, W.K., Nicol, S.
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Methodological aspects of the International Synoptic Krill Survey in Area 48, 2019
Abstract: The effect of differences in the methodology used for the CCAMLR 2000 krill acoustic ... effect of krill discrimination method. Surveying during the day only produced a 6% increase in the ... standing stock estimate and the trawl selectivity between vessels had minimal effect on the krill length ... distributions. The choice of krill discrimination method had a marked effect on the per-stratum biomass ...
Meeting Document : SG-ASAM-2019/10 : Autor(es): G. Macaulay, G. Skaret, T. Knutsen and B. Krafft