Search results
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CPUEs and body length of Antarctic krill during 1991/92 season in the fishing grounds north of Livingston Island
Abstract: This paper summaries Japanese krill catch data during austral summer in 1991/92 season ... values at the height of summer (late January- late March). Krill with modal lengths of 41-45 mm were ... : CPUEs and body length of Antarctic krill during 1991/92 season in the fishing grounds north ... This paper summaries Japanese krill catch data during austral summer in 1991/92 season. A main ...
Meeting Document : WG-KRILL-93/25 : Author(s): T. Ichii (Japan)
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On the problem of icefish (Champsocephalus gunnari) (Channichthyidae) and krill (Euphausia superba) interaction in the South Georgia area
Abstract: The interaction of icefish and krill in the South Georgia area has been analysed ... and as adults utilize the pelagic forage resource, the bulk of which is constituted by krill. At the same time ... krill content in the food of different length groups varied. The effect of krill on icefish growth ... distribution pattern of fish is sufficiently stipulated by the impact of krill distribution, being ...
Meeting Document : WG-FSA-04/41 : Author(s): S.M. Kasatkina and Zh.A. Frolkina (Russia)
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Net-based verification of acoustic techniques used to identify Antarctic krill
Distorted Wave Approximation (SDWBA) krill target strength model, are assessed. Three frequency acoustic ... data and concurrent net information, from 16 net hauls through krill aggregations, were collected ... . Using the SDWBA model, dB difference identification ranges based on the length-frequencies of krill ... only 6 of the 16 krill aggregations sampled the nets. contrast the '2 freq model' and freq ...
Meeting Document : SG-ASAM-09/04 : Author(s): J. Watkins and S. Fielding (United Kingdom)
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Broadbandwidth sound scattering and absorption from krill (Meganyctiphanes norvegica), Mysids (Praunus flexuousus and Neomysis integer) and shrimp (Crangon crangon)
Abstract: Sound scattering and absorption measurements were made of Northern krill ... measurements made of Antarctic krill (Euphausia superba; Demer and Conti, 2003a). The measurements of total ... krill, indicating its validity for other euphausiids species with similar size and shape. However ... derived with the generic krill shape and scaled to animal length (L). This implies that crustacean target ...
Meeting Document : WG-EMM-04/40 : Author(s): S.G. Conti, D.A. Demer (USA) and A.S. Brierley (United Kingdom)
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Krill biomass estimates for South Georgia, December and January 1996/97
Georgia during December/January 1996/97. Netting suggested that the mean lengths of krill within ... box-specific krill target strength (TS) values of-38.89 and-38.59 dB kg-1. Acoustic signals believed ... to be attributable to krill were identified on the basis of the difference between mean volume backscattering ... strength at 120 and 38kHz (mvbsl20 kHz- mvbs38kHz between 2 and 12 dB indicative of krill). Mean volume ...
Meeting Document : WG-EMM-97/48 : Author(s): Goss, C., Watkins, J.L., Brierley, A.S.
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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 ... . The largest catch of krill was taken from SSMU SOW (South Orkney West) in Subarea 48.2 (89184 ... the second time that fishing was reported from SSMU APE; previously, 25 t of krill was taken in 1995/96 ...
Meeting Document : WG-EMM-10/05 : Author(s): Secretariat
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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 ... of the spawning stock (as a proportion of SB0) at the end of the projection run (level of escapement). The krill ... . This paper examines the implications for estimates of krill yield from using the biased estimate of SB0 ...
Meeting Document : WG-EMM-97/45 : Author(s): de la Mare, W.K., Constable, A.J.
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A sentiment analysis of online content containing Antarctic krill fishing search terms
Abstract: The sentiment of online content containing Antarctic krill fishing and related search ... decisions. The Antarctic krill fishery is managed by the Commission for the Conservation of 14 Antarctic ... for Antarctic krill has caused concern for the 17 future of krill populations among stakeholders and has ... to information about Antarctic krill, 19 typically through online searches and social media. Public perception ...
Meeting Document : WG-EMM-17/18 : Author(s): J. Barrett, K. Reid and J. Jabour
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Recommendations on estimating krill escape mortality during fishing operations: the problems and approaches
Abstract: The task to estimate the escape mortality of krill during the fishing operation ... assigned by Scientific Committee requires assessment of the total krill passed through the rope and netting ... parts of trawl and krill amount appeared unviable in the process of escapement. The recommendations ... ». Estimation of the total amount of krill escaped from the rope and netting parts of the trawl is proposed ...
Meeting Document : WG-EMM-10/18 : Author(s): V.K. Korotkov and S.M. Kasatkina (Russia)
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Distribution and abundance of Antarctic krill (Euphausia superba) off East Antarctic (30–80°E) in January–March 2006
of Division 58.4.2 for the purposes of estimating the unexploited biomass (B0) of Antarctic krill (Euphausia ... estimates of krill mean biomass density, biomass and variance. The mean acoustic biomass density of krill ... was estimated to be 12.46 million tonnes with a CV of 15.15%. Krill were widely distributed at relatively low ... of krill, 50% of intervals registered densities of 1 g m-2 of krill or less, and 80% of intervals ...
Meeting Document : WG-EMM-07/33 : Author(s): T. Jarvis, N. Kelly, E. van Wijk, S. Kawaguchi and S. Nicol (Australia)