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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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): Pauly, T., Higginbottom, I., Hosie, G., de la Mare, W.K., Nicol, S.
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Variability and predictability of Antarctic krill swarm structure
-identification algorithm and then filtering out all non-krill targets. The area, length, height, depth, packing ... describing both the environment and the internal-state of krill (namely maturity, body length, body condition ... significant explanatory power (P<0.05): surface fluorescence, PAR, krill maturity and krill body length ... , when surface fluorescence was low, and when the krill were small and immature. A strong pattern of diel ...
Meeting Document : WG-EMM-10/P10 : Автор(ы): G.A.Tarling, T. Klevjer, S. Fielding, J. Watkins, A. Atkinson, E. Murphy, R. Korb, M. Whitehouse and R. Leaper
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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 : Автор(ы): G. Macaulay, G. Skaret, T. Knutsen and B. Krafft
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Interannual and seasonal variability of salp by-catch from Japanese krill fishery around the South Shetland Islands
Abstract: Data on salp by-catch and green krill were analyzed based on Logbook data of Japanese ... krill trawlers. Inter-annual and seasonal variability of the timing, duration and strength of salp bloom ... were indicated. Salp by-catch and occurrence of green krill seemed to show reverse correlation ... , implying the competition for phytoplankton between krill and salps. Author(s): Naganobu, M., Ichii, T ...
Meeting Document : WG-EMM-97/37 : Автор(ы): Naganobu, M., Ichii, T., Kawaguchi, S.
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Development in maturity stage composition and vertical distribution in an Antarctic krill (Euphausia superba) hotspot
Abstract: Antarctic krill (Euphausia superba) aggregate in various ways depending on a range of ... ecosystems and also for the krill fishing industry. Despite the importance of such krill hotspots, their ... dynamics over time with respect to spatial distribution and demographical composition of krill including ... spawning state is not well described or understood. In the present study, a krill fishing vessel during ...
Meeting Document : WG-EMM-14/15 : Автор(ы): B.A. Krafft, G. Skaret and T. Knutsen (Norway)
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Characterising the preferred at-sea habitats used by chinstrap penguins and the fishery for Antarctic krill: slow-flowing, nearshore waters over shallow bathymetry
habitats are also locations preferentially used by the commercial krill fishery. Cross-shelf submarine ... canyons occur near to a number of preferred krill fishing locations, suggesting that these canyons ... potentially play an important role in krill transport onto the shelf. In the relatively slow-moving shelf ... waters krill depletion is probably more likely and krill replenishment less likely. Our results suggest ...
Meeting Document : WG-EMM-17/34 : Автор(ы): P.N. Trathan, V. Warwick-Evans, J. Hinke, E.F. Young, A.P.B. Carneiro, M.P. Dias, K. Kovacs, O.R. Godø and M. Santos
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