Resultados de la búsqueda
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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
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South Orkney Island 2016 Antarctic krill and ecosystem monitoring
, krill demography and other macro zooplankton from trawl station work, krill predator sightings data as ... the South Orkney Islands including the preliminary results from continuously recorded acoustic data ... well as krill-experimental work carried out on onboard. Author(s): B.A. Krafft, G. Skaret, L.A. Krag ... , T. Rustand and R. Pedersen Title: South Orkney Island 2016 Antarctic krill and ecosystem monitoring ...
Meeting Document : WG-EMM-16/P03 : Autor(es): B.A. Krafft, G. Skaret, L.A. Krag, T. Rustand and R. Pedersen
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Fishing intensity of Russian fleet krill fishery in Subarea 48.2 and 48.3
Abstract: The purpose of this paper was estimating commercial fleet impact on krill population in ... -by-haul data using a model of probabilistic-statistical theory of fishery systems developed in the ... AtlantNIRO. Intensity of commercial fleet impact on krill population, on biomass and density of krill ... aggregated in the fishing grounds was assessed basing on 22800 haul data. The analysis of Soviet fleet ...
Meeting Document : WG-EMM-02/62 : Autor(es): S.M. Kasatkina and V.F. Ivanova (Russia)
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On commercial significance of krill aggregations
Abstract: We made an attempt to estimate krill commercial biomass density within the fleet ... operation areas and compare it with critical density values for marine animals feeding on krill. The results ... used. We also analyzed commercial statistics data, including haul by haul data from Soviet trawlers ... and 2002 (2380 hauls). In the course of the recent twenty years, krill has been fished in the areas ...
Meeting Document : WG-EMM-03/31 : Autor(es): S.M. Kasatkina (Russia)
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A procedure for krill density estimation
Abstract: This paper is intended to provide a generalised example of a procedure for krill ... paper is not the CCAMLR krill density estimation procedure, but has been written as a discussion ... document for the 2016 SG-ASAM meeting. Author(s): M.J. Cox, S. Fielding and A. Constable Title: A ... procedure for krill density estimation Microsoft Word File: asam-16-01.docx Approval: Approved Secretariat ...
Meeting Document : SG-ASAM-16/01 : Autor(es): M.J. Cox, S. Fielding and A. Constable
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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
between acoustic and net krill density estimates. This variation was reduced by subsampling the data set ... 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 ...
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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Growth and shrinkage in Antarctic krill Euphausia superba is sex-dependent
sources of winter krill population data is from commercial vessels. We examined length-frequency data of ... Abstract: The ability of Antarctic krill Euphausia superba Dana to withstand the overwintering ... period is critical to their success. Laboratory evidence suggests that krill may shrink in body length ... during this time in response to the low availability of food. Nevertheless, verification that krill can ...
Meeting Document : WG-EMM-16/P04 : Autor(es): G. Tarling, S. Hill, H. Peat, S. Fielding, C. Reiss and A. Atkinson
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Net escapement of Antarctic krill in trawls
Abstract: This document describes the aims and methodology of a three year project (commenced in ... 2012) entitled Net Escapement of Antarctic krill in Trawls (NEAT). The study will include a morphology ... based mathematical modeling (FISHSELECT) of different sex and maturity groups of Antarctic krill ... selective properties for krill in different trawls. Author(s): B.A. Krafft (Norway), L.A. Krag, B. Herrmann ...
Meeting Document : WG-EMM-12/24 : Autor(es): B.A. Krafft (Norway), L.A. Krag, B. Herrmann (Denmark), A. Engås, S. Nordrum and S. Iversen (Norway)
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Development in maturity stage composition and vertical distribution in an Antarctic krill (Euphausia superba) hotspot
regular operation was used as a platform for frequent collection of biological data to investigate krill ... quantitative data on krill flux and retention potential, especially if the fishing activity expands in future ... 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 ...
Meeting Document : WG-EMM-14/15 : Autor(es): B.A. Krafft, G. Skaret and T. Knutsen (Norway)
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Analysis of the krill spatial distribution characteristics as the important factor in fishery management in Area 48 (report of the CCAMLR scholarship recipient)
Abstract: Analysis of the krill spatial distribution characteristics as the important factor for ... the krill fishery management in Area was performed by Sytov A. being the CCAMLR Scholarship ... recipient (mentor Kasatkina S.). The data obtained from the multiannual Russian observations in the Area 48 ... , including acoustic surveys data, fishery statistics (haul by haul), the data obtained during scientific ...
Meeting Document : WG-EMM-16/41 : Autor(es): S.M. Kasatkina and A. Sytov