Search results
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Acoustic estimates of krill density at South Georgia during 11 austral summers between 1981 and 1998
Abstract: Acoustic estimates of densities of Antarctic krill, Euphausia superba, at South Georgia ... are presented for eleven austral summers between 1981 and 1998. Krill abundance at the island fluctuated widely ... austral summer seasons were characterised by particularly low abundances of krill. For five of the summers ... . Brierley, J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson (UK) Title: Acoustic estimates of krill ...
Meeting Document : WG-EMM-98/51 : Author(s): A.S. Brierley, J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson (UK)
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Longterm monitoring of krill recruitment and abundance indices in the Elephant Island area (Antarctic Peninsula)
Abstract: Krill distribution and density are reviewed for the Elephant Island area with regard ... la Mare (1994a). The high interannual variability of krill recruitment is confirmed by the present ... fluctuations in krill density over the period 1977 to 1994 are also confirmed by this study using randomisation ... monitoring of krill recruitment and abundance indices in the Elephant Island area (Antarctic Peninsula ...
Meeting Document : WG-EMM-96/45 : Author(s): de la Mare, W., Loeb, V., Siegel, V.
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Histopathology of Antarctic krill (Euphausia superba) bearing black spots
Abstract: In Antarctic krill, Euphausia superba, sampled by a Japanese scientific observer ... onboard a krill fishing vessel in the winter of 2003 and 2006 in the South Georgia region, the Antarctic ... Ocean, approximately 2-5% of sub-samples of 100 krill bore small black spots. The black spots were most ... from a gonadal tissue. These results suggest that the krill were affected by bacterial infections ...
Meeting Document : WG-EMM-07/29 : Author(s): S. Miwa, T. Kamaishi, T. Matsuyama, T. Hayashi and M. Naganobu (Japan)
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DISTRIBUTION OF KRILL AT THRESHOLD DENSITIES SUITABLE FOR FISHING IN THE ATLANTIC SECTOR: ANALYSIS OF THE 2000 SYNOPTIC SURVEY DATA
and shelf SSMUs in terms of the frequency of 1nm integration units with krill densities above and below ... in pelagic SSMUs. This is despite the fact that the absolute abundance of both krill and fishable ... concentrations of krill is higher in pelagic than in shelf SSMUs. 5. We also derived empirical relationships ... between SSMU-scale krill density and the frequency of fishable integration units for the full range ...
Meeting Document : WG-EMM-08/16 : Author(s): S. Hill and D. Agnew (United Kingdom)
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Proposal for a dedicated krill survey for CCAMLR Division 58.4.1 during 2018/19 season by the Japanese survey vessel, Kaiyo-maru
Abstract: A dedicated krill survey for CCAMLR Division 58.4.1 during 2018/19 season is planned ... by Japan. No krill biomass has been estimated in the Division since 1996 when Australia carried out BROKE ... . There are two main objectives of our survey: (1) estimation of krill biomass to update B 0 in the division ... , will be used in the survey. The krill survey (echosounder and RMT) and subsequent biomass estimation ...
Meeting Document : WG-EMM-17/05 : Author(s): H. Murase, K. Abe, T. Ichii and A. Kawabata
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ALLOCATING THE PRECAUTIONARY CATCH LIMIT FOR KRILL AMONGST THE SMALL-SCALE MANAGEMENT UNITS IN AREA 48: THE IMPLICATIONS OF DATA UNCERTAINTIES
Abstract: Over the past few years WG-EMM has been developing a management procedure for the krill ... to the distribution of predator demand (Option 2), krill standing stock (Option 3), or the difference between ... of predator demand and krill standing stock and assess their potential implications. We consider that a strong ... that the data documenting the distribution of krill standing stock are likely to be more reliable than those ...
Meeting Document : WG-EMM-08/12 : Author(s): P.N. Trathan and S.L. Hill (United Kingdom)
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Incident of Antarctic krill (Euphausia superba) mass infection near the coasts of South Georgia Island (Subarea 48.3)
for the first time we found out young and mature antarctic krill Euphasia superba individuals affected ... of krill invasion increased 2.3 times. In shelf zone and on the continental slope of the South Georgia ... Island northern part, where definite currents provided for isolation of krill aggregations, affected ... individuals occurred everywhere. Author(s): M.S. Savich (Ukraine) Title: Incident of Antarctic krill ...
Meeting Document : WG-EMM-02/13 : Author(s): M.S. Savich (Ukraine)
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DIRECT EFFECTS OF CLIMATE CHANGE ON THE ANTARCTIC KRILL FISHERY
- on the seasonal behaviour of the region’s largest fishery, that for Antarctic krill. Declining sea ice cover ... in the main krill fishing grounds has resulted in greater accessibility of krill stocks to the fishing fleets ... OF CLIMATE CHANGE ON THE ANTARCTIC KRILL FISHERY Approval: Approved ... - on the seasonal behaviour of the region’s largest fishery, that for Antarctic krill. Declining sea ice cover ...
Meeting Document : WG-EMM-09/P06 : Author(s): S. Kawaguchi, S. Nicol and A.J. Press
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Annual migrations of pelagic fish stocks into a krill hotspot
Abstract: We report here on the existence of seasonal fish migrations into a krill hotspot ... from krill on a single frequency. Trawl catches in the area during 2019 gave high densities of mackerel ... , their frequency response may be similar to that of krill at the commonly used frequencies of 38 and 120 kHz ... . Author(s): T. Klevjer Title: Annual migrations of pelagic fish stocks into a krill hotspot Approval ...
Meeting Document : WG-EMM-2019/33 : Author(s): T. Klevjer
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Reconciling theoretical versus empirical target strengths of krill; effects of phase variability on the distorted wave Born approximation
Abstract: A model was recently proposed to predict the target strengths (TS) of Antarctic krill ... of a discretized bent cylinder (krill model) causes a dramatic flattening in the side-lobe regions of TS(?), while ... negligibly affecting the main scattering lobe. These results are consistent with the krill TS measurements ... accurate and thus practical tool is developed for predicting krill TS. Author(s): D.A. Demer and S.G ...
Meeting Document : WG-EMM-02/50 : Author(s): D.A. Demer and S.G. Conti (USA)