Search results
-
Krill distribution related to water structure and dynamics on the South Georgia shelf in January 2000 (AtlantNIRO-BAS Core Programme 1999/2000)
Abstract: Research on water structure and dynamics, krill biomass assessment, biology ... in each box. Krill were distributed rather evenly throughout both boxes, but no dense concentrations were ... apparent. In the western box krill density was nearly 0.2 glm3 and in the eastern box was 1.8- 4.7 glm3 ... • Juvenile krill of 30-36 mm length were observed in the shelf zone and larger specimens, including spawning ...
Meeting Document : WG-EMM-00/51 : Author(s): V.A. Sushin (Russia), P.P. Chernyshkov (Russia), F.F. Litvinov (Russia), J.L. Watkins (United Kingdom) and A.S. Brierley (United Kingdom)
-
Density and biomass of Antarctic krill around South Shetland Islands using by 2-dB difference method
Abstract: The dB-difference and characteristics of krill aggregation inhabiting Subarea 48.1 ... , were estimated to distinguish Antarctic krill, using acoustics. From April 13 to 24, 2016, acoustic ... krill (4.9 to 12.0 dB) and fish (-4.0 to-0.2 dB). The distributions and mean Sv of krill aggregations ... of the South Shetland Islands. The mean length/height ratio of krill aggregations in the west of the South ...
Meeting Document : SG-ASAM-17/04 : Author(s): S.-G. Choi, K. Lee and D. An
-
Krill fishery information
Abstract: Fisheries targeting krill (Euphausia superba) in the CCAMLR Convention Area during 1998 ... /99 caught 103318 t of krill, and preliminary information indicates that the catch in 1999/00 ... will exceed 82913 t. Krill caught in 1998/99 was taken in Subareas 48.1 (38% of total catch), 48.2 (49 ... and observer data submitted to the Secretariat are discussed, together with other information on krill obtained ...
Meeting Document : WG-EMM-00/25 : Author(s): Secretariat
-
On possible influence of continuous krill fishing technology with the use of ‘air-bubbling suspension system’ on ecosystem elements
Abstract: It was shown that potential increase in krill fishery in the immediate future ... -krill- fishery interactions. In this case, apart from traditional commercial statistics (vessels ... of studying the krill fishing technology. It is just trawl design and fishing method that will determine ... the fishing process influence on ecosystem components, such as juvenile fish, larvae, immature and adult krill ...
Meeting Document : WG-EMM-06/27 : Author(s): S.M. Kasatkina and V.A. Sushin (Russia)
-
Ecosystem modelling for the Antarctic krill fishery
Abstract: Euphausia superba Dana (Antarctic Krill) has been recognized as a key forage species ... but there is concern that the reduction in krill biomass due tome fishery may have impacts on other krill predators ... such as penguins, seals and whales. In order to evaluate the effects of krill fishing on the trophic web ... resource. In this context we aim to investigate whether the krill fishery and the top predators ...
Meeting Document : WG-EMM-01/65 : Author(s): T. Antezana, J. Cornejo, E. Bredesen, P. Faundez (Chile), A.W. Trites and T. Pitcher (Canada)
-
Development in maturity stage composition and vertical distribution in an Antarctic krill (Euphausia superba) hotspot
Abstract: Antarctic krill (Euphausia superba) aggregate in various ways depending on a range ... and also for the krill fishing industry. Despite the importance of such krill hotspots, their dynamics over ... time with respect to spatial distribution and demographical composition of krill including spawning ... state is not well described or understood. In the present study, a krill fishing vessel during regular ...
Meeting Document : WG-EMM-14/15 : Author(s): B.A. Krafft, G. Skaret and T. Knutsen (Norway)
-
Catchability of midwater trawls in relation to krill fishery
, krill aggregations distribution in the study area is discussed. It is shown that while the trawl ... selectivity affects krill length composition in each trawl sample, the trawl catchability affects ... the estimation of total krill lengths distribution, obtained on the basis of trawl samples from different catched ... distribution of krill length, obtained using weighting of trawl samples (usually 200 ind.) against the catch ...
Meeting Document : WG-EMM-98/20 : Author(s): S.M. Kasatkina (Russia)
-
Circumpolar connections between Antarctic krill (Euphausia superba Dana) populations: Investigating the roles of ocean and sea ice transport
Abstract: Antarctic krill, Euphausia superba Dana, has a heterogeneous circumpolar distribution ... in the Southern Ocean. Krill have a close association with sea ice which provides access to a critical food source ... and shelter, particularly in the early life stages. Advective modelling of transport pathways of krill have ... of the ocean and sea ice in maintaining the observed circumpolar krill distribution. We show that the Antarctic ...
Meeting Document : WG-EMM-07/P10 : Author(s): S.E. Thorpe, E.J. Murphy and J.L. Watkins (United Kingdom)
-
An ecological risk assessment of current conservation measures for krill fishing in East Antarctica (CCAMLR Divisions 58.4.1 and 58.4.2)
involved in any redevelopment of a commercial krill (Euphausia superba) fishery in CCAMLR Divisions 58.4.1 ... that are relevant to Divisions 58.4.1 and 58.4.2 sufficiently mitigate the risk of a krill fishery ... disproportionately concentrating catches in areas that are also important to krill predators. In particular ... , crabeater seals and Adélie penguins, in parallel with the currently agreed krill biomass estimates across ...
Meeting Document : WG-EMM-18/37 : Author(s): N. Kelly, L. Emmerson, S. Kawaguchi, C. Southwell and D. Welsford
-
Characterising the preferred at-sea habitats used by chinstrap penguins and the fishery for Antarctic krill: slow-flowing, nearshore waters over shallow bathymetry
habitats are also locations preferentially used by the commercial krill fishery. Cross-shelf submarine ... canyons occur near to a number of preferred krill fishing locations, suggesting that these canyons ... potentially play an important role in krill transport onto the shelf. In the relatively slow-moving shelf ... waters krill depletion is probably more likely and krill replenishment less likely. Our results suggest ...
Meeting Document : WG-EMM-17/34 : Author(s): P.N. Trathan, V. Warwick-Evans, J. Hinke, E.F. Young, A.P.B. Carneiro, M.P. Dias, K. Kovacs, O.R. Godø and M. Santos