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Krill fishery report: 2010 update
Abstract: So far this season (2009/10), ten of the 11 krill fishing vessels licensed by Members ... total catch of krill for the season is 150000-180000 t. In 2008/09, five Members fished for krill in ... largest catch of krill was taken from SSMU SOW (South Orkney West) in Subarea 48.2 (89184 t), and the ... second time that fishing was reported from SSMU APE; previously, 25 t of krill was taken in 1995/96. The ...
Meeting Document : WG-EMM-10/05 : Автор(ы): Secretariat
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A biomass estimate of Antarctic krill (Euphausia superba) at the Balleny Islands
Abstract: The biomass of Antarctic krill (Euphausia superba) at the Balleny Islands, Antarctica ... data processing followed the recommendations of CCAMLR SG-ASAM. Two parameterisations of the krill ... krill, θ, as a normal distribution, mean = 11°, standard deviation = 4°, N(11,4), the second ... parameterisation used θ = N(-20,28). Krill biomass using estimated using θ = N(11,4) was 20.8 kilotonnes ...
Meeting Document : WG-EMM-15/17 Rev. 1 : Автор(ы): M.J. Cox (Australia), Y. Ladroit, P. Escobar-Flores and R.L. O’Driscoll (New Zealand)
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Quantifying the escape mortality of trawl caught Antarctic krill (Euphausia superba)
Abstract: Antarctic krill (Euphausia superba) is an abundant fishery resource, the harvest levels ... of which are expected to increase. However, many of the length classes of krill can escape through ... fishing gear. The methods for determining fishing mortality in krill are still poorly developed. We used a ... mortality rates of escaped krill. Haul duration, hydrological conditions, maximum fishing depth and catch ...
Meeting Document : WG-EMM-16/04 : Автор(ы): B.A. Krafft, L.A. Krag, A. Engås, S. Nordrum, I. Bruheim and B. Herrmann
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A krill–predator–fishery model for evaluating candidate management procedures
Abstract: The CCAMLR has recognised the need to subdivide the precautionary krill catch limit for ... Statistical Area 48 amongst smaller spatial units in order to minimize the localized depletion of krill in ... necessary to evaluate these procedures in terms of their likely effects on krill and predator populations as ... uncertainty about how the krill-predator- fishery system operates. We describe a model designed to investigate ...
Meeting Document : WG-EMM-05/13 : Автор(ы): G.M. Watters, J.T. Hinke (USA), K. Reid and S. Hill (United Kingdom)
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Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass
krill yields according to decision rules that relate spawning stock status to the median unexploited ... spawning biomass, SB0. The first model has been developed specifically for krill, the krill yield model ... ). The krill yield model uses a biased estimate of SB0 with a method for correcting this bias in the ... correction. This paper examines the implications for estimates of krill yield from using the biased estimate ...
Meeting Document : WG-EMM-97/45 : Автор(ы): de la Mare, W.K., Constable, A.J.
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Biomass/CCAMLR krill review
Abstract: Current knowledge of the ecology, biology and life history of the Antarctic krill ... which are either directly or indirectly applicable to the effective management of krill exploitation ... distribution of krill on various scales ranging from the global to individual aggregations (e.g., swarms) is ... stock separation considered. Recent attempts to assess the krill standing stock directly are examined ...
Meeting Document : SC-CAMLR-VII/BG/39 : Автор(ы): D.G.M. Miller and I. Hampton (South Africa)
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Some comments on the procedure of krill target strength assessment in echosurveys
in echosurveys is discussed. It is known that krill abundance and biomass estimation should be ... trawl selectivity and catchability. Krill abundance estimation related to TS target strength values ... : assessment of MSBS (MVBS) acoustic parameter distribution and krill length (weight) distribution in the study ... measuring system. However, the information obtained in that case provides not only total krill abundance ...
Meeting Document : WG-EMM-98/21 : Автор(ы): S.M. Kasatkina (Russia)
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Histopathology of Antarctic krill, Euphausia superba, bearing black spots
Abstract: Small black spots have been noticed on the cephalothorax of Antarctic krill, Euphausia ... superba, since January, 2001. To study the nature of the black spots, the krill were sampled in the winter ... bacteria or amorphous material. In the 2007 samples, 42% of the krill had melanized nodules. Most of the ... nodules had an opening on the body surface of the krill. A single melanized nodule often contained more ...
Meeting Document : WG-EMM-08/P09 : Автор(ы): S. Miwa, T. Kamaishi, T. Matsuyama, T. Hayashi and M. Naganobu
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Net sample validation of acoustic techniques used to identify and size Antarctic krill
Abstract: Acoustic surveys to estimate krill biomass require that sound backscattered by krill be ... collected with an RMT8. Around 80 % of the targets thought to be krill on the basis of their appearance on ... echo-charts were also identified as krill on the basis of their difference in backscatter at 38 and 120 ... kHz (ΔMVBS = MVBSI20- MVBS3S; where ΔMVBS between 2 & 12 dB). Biomass values estimated from krill ...
Meeting Document : WG-EMM-97/46 : Автор(ы): Watkins, J.L., Brierley, A.S.
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Krill density, biomass, proportional recruitment and recruitment index in the elephant island region during the period 1977 to 1997
Abstract: The Elephant Island long-term data set was updated for krill density and proportional ... recruitment. Krill biomass (from net sampling surveys) and absolute recruitment are introduced as additional ... /95 and an average 1995/96 krill year-class (below average for proportional recruitment, average for ... absolute recruitment). After a period of low krill density in the area for almost a decade, krill density ...
Meeting Document : WG-EMM-97/29 : Автор(ы): Loeb, V., Siegel, V., Gröger, J.
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