Résultats de la recherche

1. Assessment of fishing intensity of krill in Subarea 48.2 during the season of 1989/90

   Abstract:  The research performed was aimed at assessment of fishing fleet impact upon krill ... above period total krill catch amounted to 88.9 thous. t which constitutes the upper limit of seasonal ... months of the highest fleet pressure for entire period from 1984 to 1993. Krill fishery was concentrated ... ) fishing intensity in each month critical to dependent species exceeded no 1 0% of initial krill stock at ...

   Meeting Document : WG-EMM-97/51 : Auteur(s): Ivanova, V.I., Sushin, V.A., Kasatkina, S.M.

2. Geographical aspects of utilising resources of krill (Euphausia superba)

   as in the coastal waters of the Antarctic continent, the formation of krill aggregations is variable ... lies with assessing the variability of krill swarming patterns and the subsequent implementation of ... directed at assessing variability in krill transportation and areas of swarm formation in the open-ocean ... environment. The commercial exploitation of krill aggregations in open-ocean areas should occur alongside an ...

   Meeting Document : WG-EMM-96/05 : Auteur(s): Makarov, R.R.

3. Results of acoustic assessment of krill biomass in Subarea 48.2 during summer 1996

   ; acoustic assessment of krill biomass and distribution was carried out in study area restricted with 59° 10 ... with between-tacks distance of 20 miles. The echosurvey was carried out diurnally. Krill target ... strength was estimated by means of TS/length relationship, recommended by WG-krill (SC-CAMLR, 1991 ... amounted to 1.12 mln. t at 95% confidence limit CL=93.1 thous.t. Variation coefficients of krill density ...

   Meeting Document : WG-EMM-96/36 : Auteur(s): Sunkovich, V.I., Kasatkina, S.M., Abramov, V.M., Polischuk, M.I., Sushin, V.A., Shnar, V.N.

4. Fishes incidentally caught by Japanese Antarctic krill commercial fishery to the north of the South Shetland Islands during the 1994/95 austral summer

   sample of 50 kg of krill. Number of by-catch fishes ranged from 0 to 50 per 100 kg of krill catch and ... total wet weight of by-catch fishes also ranged from 0 to 248.2 g per 100 kg of krill catch. Abundance ... of by-catch fishes was higher in krill hauls with the low catch rates. Author(s):  Iwami, T. Title ... :  Fishes incidentally caught by Japanese Antarctic krill commercial fishery to the north of the South ...

   Meeting Document : WG-EMM-95/56 : Auteur(s): Iwami, T.

5. Collection, processing and potential use of sonar data from krill fishing vessels

   Antarctic krill distribution, and potentially abundance. Data from sonars can be used independently of ... acoustic surveys. Sonars are capable of sampling large volumes of water and can image entire krill swarms ... and track changes in swarms through time.  Some commercial krill fishing vessels, e.g.  ‘Juvel’ and ... vessels.  The purpose of this paper is to stimulate discussion on the utility of sonars to describe krill ...

   Meeting Document : SG-ASAM-14/01 : Auteur(s): G. Skaret (Norway) and M.J. Cox (Australia)

6. Discussion on recent results from an integrated assessment of Antarctic krill (Euphausia superba) in Subarea 48.1

   -assessment framework for Antarctic krill (Euphausia superba) to assimilate multiple sources of survey data ... and estimate krill growth.  Kinzey et al. (2014) fitted stock-assessment models to survey data that ... from three of the models provide a robust picture of changes in the krill population.  An annual model ... -annual variations in cohort strength have dominated krill dynamics in Subarea 48.1.  Long-term trends ...

   Meeting Document : WG-EMM-14/35 : Auteur(s): G.M. Watters, C.S. Reiss and D. Kinzey (USA)

7. Classification of Southern Ocean krill and icefish echoes using Random Forests

   . Antarctic krill, Euphausia superba, are typically identified through a combination of expert scrutiny of ... two or more echosounder frequencies. For commonly used frequencies, however, the differences for krill ... pelagic aggregations, which can be difficult to distinguish acoustically from large krill layers. Mackerel ... during surveys. The final random forest classified krill, icefish, and mixed aggregations of weak ...

   Meeting Document : WG-EMM-16/23 : Auteur(s): N. Fallon, S. Fielding and P. Fernandes

8. Habitat partitioning in Antarctic krill: spawning hotspots and nursery areas

   Abstract:  Antarctic krill, Euphausia superba, have a circumpolar distribution but are ... ontogenetic life stages of krill (eggs, nauplii plus metanauplii, calyptopes, furcilia, juveniles, and adults ... krill densities can be high. To address these questions, we compiled larval krill density records and ... temperature suggest that krill associate with different habitats over the course of their life cycle. From the ...

   Meeting Document : WG-EMM-2019/20 : Auteur(s): F. Perry, A. Atkinson, S.F. Sailley, G.A. Tarling, S.L. Hill, C.H. Lucas and D.J. Mayor

9. Demography of Antarctic krill in the Elephant Island area (Antarctic Peninsula) during austral summer 2001

   Abstract:  A net sampling survey was carried out for krill in an established standard station grid ... small size classes, one year old juvenile krill was found. Krill density was significantly higher than ... during the past years (between 198 and 230 krill 1000 m-3, i.e. between 40 and 46 m-2 or 11.3 g m-2). The ... high krill abundance and the high recruitment index reflect the end of a succession of years with poor ...

   Meeting Document : WG-EMM-01/10 : Auteur(s): V. Siegel (Germany), B. Bergström (Sweden), U. Mühlenhardt-Siegel (Germany) and M. Thomasson (Sweden)

10. Distribution and size of Antarctic krill (Euphausia superba Dana) in the Polish commercial catches in the Atlantic sector of Antarctica in 1997–1999

    Abstract:  The distribution, density and length composition of krill in commercial concentrations ... krill concentration. The internal structure of the concentration was very diverse and the mean density ... varied from 11 to 31,370 specimens * m-3. At night, the krill concentrations were scattered throughout ... found in deeper waters. The size structure of the krill was diverse during all periods and in all areas ...

    Meeting Document : WG-EMM-01/13 : Auteur(s): E. Jackowski (Poland)

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