Search results
-
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
-
Analysis of variables influencing finfish by-catch in the krill fishery in Area 48
variables influencing finfish bycatch in the krill fishery of Area 48. Records of finfish bycatch ... in the Area 48 krill fishery collected by observers on the FV Saga Sea were analysed over the period 2007/08 ... , krill catch, sea surface temperature, bottom depth and fishing depth and season were all significantly ... associated with the presence of finfish bycatch in the Saga Sea krill fishery for at least one family ...
Meeting Document : WG-EMM-12/28 : Author(s): S.M. Martin, T. Peatman, J. Moir Clark (United Kingdom), O.R. Godø (Norway) and R.C. Wakeford (United Kingdom)
-
Risk maps for Antarctic krill under projected Southern Ocean acidification
Abstract: The embryonic development of Antarctic krill (Euphausia superba) is sensitive ... development even if the embryos are transferred to seawater with current levels of CO 2. Krill embryos appear ... 2 in the Southern Ocean are predicted by models to rise to above 1500 μatm in some parts of krill’s depth range ... to the east (the Haakon VII Sea) are the highest risk areas for krill embryos. The entire Southern Ocean ...
Meeting Document : WG-EMM-14/P06 : Author(s): S. Kawaguchi, A. Ishida, R. King, B. Raymond, N. Waller, A. Constable, S. Nicol, M. Wakit and A. Ishimatsu
-
Homogeneity of body length composition of Antarctic krill within the commercial haul
Abstract: The homogeneity of krill length composition in commercial trawl catches (hauls ... noticeable in areas where krill length compositions were bimodal. Author(s): T. Ichii (Japan) Title ... : Homogeneity of body length composition of Antarctic krill within the commercial haul Approval: Approved ... The homogeneity of krill length composition in commercial trawl catches (hauls) was investigated ...
Meeting Document : WG-KRILL-90/11 Rev1 : Author(s): T. Ichii (Japan)
-
On the problem of Soviet krill fishery allocation and intensity in the area of Elephant Island in the season of 1988-1989
Abstract: Microscale data, described the Soviet krill fishery off the Elephant Island (Subarea ... : 1) vessels enter the Elephant Island area and search for krill concentrations; 2) fishing of concentrations ... . The velocity of krill concentration northeastward drift, calculated by the fleet displacement amounted to 9.7 ... that fleet operation areas in general overlap the minor part of foraging zones for animals, preyed on krill ...
Meeting Document : WG-CEMP-92/30 : Author(s): V.A. Sushin and A.S. Myskov (Russian Federation)