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1. Possible effects of different levels of fishing on krill on predators - some initial modelling attempts

   of the parameters of predator survival rates as functions of krill abundance, by considering a krill ... breeding success patterns for certain krill predator species. A "one-way" interaction model is ... developed, in which krill abundance fluctuations impact the predator population, but not vice versa ... . Computations based on this model indicate that variability in the annual recruitment of krill results in ...

   Meeting Document : WG-KRILL-93/43 : Автор(ы): D.S. Butterworth and R.B. Thomson (South Africa)

2. Krill distribution and biomass variability within Subarea 48.3 in June 1991

   Abstract:  Temporal and spatial variability of krill distribution characteristics was investigated ... in an 8 x 6 mile micropolygon, where eight consecutive hydroacoustic surveys were carried out. Krill ... 1 554 units. Krill biomass in the polygon varied spasmodically within the range from 1 091 to 6 085 ... tonnes. Krill distribution variability revealed in the polygon suggests an irregular import and export of ...

   Meeting Document : WG-KRILL-93/35 : Автор(ы): S.M. Kasatkina, E.N. Tymokhin, P.P. Fedulov and K.E. Shulgovskiy (Russia)

3. Target strengths of krill at 136 and 20 kHz

   Abstract:  Estimation of krill target strength was made by ensonification of encaged live krill ... and using trawling-acoustic method. Ensonification of encaged live krill. For aggregations with mean ... lengths in the range (45,50) mm the mean single-krill target strengths are in the range (-68,-69) dB at ... 136 kHz. For aggregations with mean lengths in the range (43,47)mm the mean single-krill target ...

   Meeting Document : WG-KRILL-91/29 : Автор(ы): S.M. Kasatkina (USSR)

4. Report of biological observations carried out on board the krill fishing vessel More Sodruzhestva in April to August 1991

   Abstract:  An observation program was carried out by a biologist-observer on board the krill ... observation of krill fishing operations, collection and processing of catch samples for analysing ... physiological status and size composition of krill and also for determining the level of by-catch of juvenile ... channichthyids. In general, krill density in Subarea 48.2 was twice as high as that in Subarea 48.3. Catch-per ...

   Meeting Document : WG-KRILL-92/06 : Автор(ы): V.I. Latogursky (Russia)

5. Scientific requirements for an orderly development of the krill fishery

   methods for minimising by-catch in krill fisheries developed early (if they are needed) so that ... Abstract:  At CCAMLR XXV Australia presented the results of the BROKE-West acoustic krill biomass ... precautionary catch limit for krill in Statistical Division 58.4.2 of 1.49 million tonnes (up from 450 000 ... tonnes). During the Commission deliberations on this issue Australia noted that while the scientific data ...

   Meeting Document : WG-EMM-07/23 : Автор(ы): A. Constable, G. Slocum and S. Nicol (Australia)

6. NEW REGIONAL-SCALE SURVEYS OF THE ADÉLIE PENGUIN BREEDING POPULATION IN PRYDZ BAY: A STEP TOWARDS IMPROVED ESTIMATION OF KRILL CONSUMPTION IN EAST ANTARCTICA

   ecosystem models that might be used to inform the management of impacts due to climate change or fisheries ... . A review of historical Adélie penguin survey data in east Antarctica revealed Prydz Bay as a ... the air, and data obtained from cameras to adjust counts to a point in the breeding chronology ... IN PRYDZ BAY: A STEP TOWARDS IMPROVED ESTIMATION OF KRILL CONSUMPTION IN EAST ANTARCTICA Approval ...

   Meeting Document : WG-EMM-11/32 : Автор(ы): C. Southwell, J. McKinlay, K. Newbery, L. Emmerson and J. Lieser (Australia)

7. Winter gut contents of the Antarctic krill (Euphausia superba Dana) collected in the South Georgia area

   Abstract:  Foregut contents of the Antarctic krill Euphausia superba Dana which were collected in ... individuals (adults: 78, subadults: 49, juveniles: 3) which were caught by krill trawling from various depths ... were examined in this study. The foregut contents of the krill consisted of various fragments of ... of krill was found from all specimens examined. Although the obtained materials were geographically ...

   Meeting Document : WG-KRILL-93/30 : Автор(ы): Y. Nishino and A. Kawamura (Japan)

8. An assessment of the impact of krill fishery on penguins in the South Shetlands

   Abstract:  The competition between Japanese krill fishery and penguins during their breeding ... information on fishery, penguins and krill biomass. The catch is very low in December followed by roughly ... . Estimated krill biomass varies considerably within the favorite fishing areas due to the movement of krill ... into and out of the area, but high krill biomass (100-1000 x103t) usually existed there. Compared with ...

   Meeting Document : WG-KRILL-93/07 : Автор(ы): T. Ichii, M. Naganobu and T. Ogishima (Japan)

9. Polish krill fishery in the 1991/92 and 1992/93 seasons results of catches and biological investigations

   Abstract:  Poland began krill fishing operations in the 1976/1977 season. It has been engaged in ... krill commercial fishery since the 1986/1987 season. Maximum catches, equalling 15.9 thous tonnes. were ... , attained in the 1992/1993 season. The report presents an analysis of Polish krill catches in the 1991/1992 ... were calculated. The results of biological investigations of krill on the fishing grounds of the South ...

   Meeting Document : WG-Krill-94/09 : Автор(ы): J. Sosinski and Z. Cielniaszek (Poland)

10. Prediction of krill target strength by liquid prolate spheroid model

    (TS) of krill. Scattering patterns are shown to demonstrate orientation dependence of krill TS. Length ... results. The variability of the TS of krill is large where L/λ is larger than unity. Therefore, a ... frequency around 70 kHz is superior to 120 kHz which are ordinarily used for krill surveys. Author(s):  M ... . Furusawa and Y. Miyanohana (Japan) Title:  Prediction of krill target strength by liquid prolate spheroid ...

    Meeting Document : WG-KRILL-93/21 : Автор(ы): M. Furusawa and Y. Miyanohana (Japan)

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