Abstract: Salp by-catch and krill discolouration ('green' krill) caused by active ... feeding on phytoplankton were analysed using logbook data from Japanese krill trawlers operating near ... blooms and the presence of green krill were analysed. No relationship between salp density ... and the proportion of green krill in the catches was evident when both salps and krill were taken together ...
Meeting Document : WS-AREA 48-98/4 Rev. 1 : Author(s): S. Kawaguchi (Japan), W.K. de la Mare (Australia), T. Ichii and M. Naganobu (Japan)
Features of spatial and temporally distribution patterns of krill flux in the Scotia Sea: some comments on the development of a krill fishery management in Area 48.
Abstract: The spatial variability of krill flux in the Scotia Sea calculated by using ... distribution of krill density, water flow intensity (m 3 /s) and krill biomass (g/m3) transported by water flow ... to the Scotia Sea, were a subject of study. It is clearly illustrated that the geostrophic krill flux ... in the Scotia Sea requires both favorable dynamic conditions and availability of krill transported by the water ...
Meeting Document : WG-EMM-18/21 : Author(s): S. Kasatkina, V. Shnar and A. Malyshko
Winter habitat selection by Antarctic krill will increase krill-predator-fishery interactions during ice free years
). For Antarctic krill (Euphausia superba), a key forage species (Laws 1977; Smetacek and Nicol 2005) and a target ... ; Atkinson et al. 2004) and is likely to increase krill-predator-fishery interactions during autumn ... the Antarctic Peninsula in winters with contrasting ice conditions provide the first acoustic estimates of krill ... biomass, habitat use, and association with top predators to examine these likely interactions. Krill were ...
Meeting Document : WG-EMM-15/05 : Author(s): C.S. Reiss, A. Cossio, C.D. Jones, A. Murray, G. Mitchell, J. Santora, K. Dietrich, E. Weiss, C. Gimpel, J. Walsh and G.M. Watters (USA)
Preliminary modelling of potential climate-change impacts on krill and a krill-dependent predator in CCAMLR Subareas 48.1 to 48.3
will affect krill resources and the marine ecosystem in Antarctic waters is critical. Previous research has ... demonstrated possible climate change impacts on krill habitat and growth. In this preliminary study, we ... assessed the potential consequences of these impacts for both the krill stock and its dependent predators ... using a peer-reviewed krill-predator-fishery ecosystem dynamics model. Initial results demonstrate ...
Meeting Document : WG-EMM-16/53 : Author(s): E.S. Klein, S.L. Hill, G.M. Watters and J.T. Hinke
Investigations of krill transport factors in the local areas in the Scotia Sea: variability of krill distribution in the fishing grounds under the transport impact
Georgia West), analysing variability of krill transport and distribution characteristics in the local ... in each study areas were accompanied with pulsatory pattern of krill transport, i.e. krill transported ... value (in our case, CV biomass=57%) is important, but also the observed changes in krill aggregation ... patterns forming the transported biomass portions (in our case, CV swarms/mile 2 =63%). Therefore, krill ...
Meeting Document : WG-EMM-07/17 : Author(s): S.M. Kasatkina and V.N. Shnar (Russia)
Distribution patterns and biomasses of Antarctic krill (Euphausia superba) and ice krill (E. crystallorophias) with note on distribution of Antarctic minke whales (Balaenoptera bonaerensis) in the Ross Sea in 2005
Abstract: Distribution patterns and biomasses of Antarctic and ice krill in the Ross Sea ... in austral summer in 2005 were studied using a multi-disciplinary survey data set combining cetacean, krill ... samples of RMT hauls and stomach contents of Antarctic minke whales. Ice krill was distributed ... on the continental shelf region (shallower than 1000m water depth). In contrast, Antarctic krill was distributed ...
Meeting Document : WG-EMM-08/35 : Author(s): H. Murase, H. Yasuma, R. Matsukura, Y. Takao, K. Taki, T. Hayashi, T. Yabuki, T. Tamura, K. Konishi, K. Matsuoka, K. Miyashita, S. Nishiwaki and M. Naganobu (Japan)
KRILL CATCHES INDICATE THE IMPACT OF THE EL-NIŇO – SOUTHERN OSCILLATION RELATED PROCESSES ON THE DISTRIBUTION OF KRILL BIOMASS BETWEEN SUBAREAS OF THE ATLANTIC SECTOR OF ANTARCTIC
different climate oceanographic regimes and its influence on krill biomass into the discussion of krill ... fishery management issues. Krill catch data in Subareas 48.1, 48.2 and 48.3 are compared to the AMLR ... Programme findings as described by Loeb et al. (2009). It is shown that krill fisheries statistics may ... on the inter-annual variation of krill biomass distribution between the major statistical subareas ...
Meeting Document : WG-EMM-09/47 : Author(s): V. Spiridonov (Russia)
Do krill fisheries compete with macaroni penguins? Spatial overlap in prey consumption and krill catches during winter
, the macaroni penguin, and the krill fishery by examining the spatial overlap in prey consumption and catches ... as this is the only time of year when spatio-temporal overlaps between macaroni penguin foraging and the krill fishery ... during the winter period. We combined these to produce a surface of the tonnes of krill consumed which ... could be compared directly with the spatial distribution of the tonnes of krill caught by the fishery ...
Meeting Document : WG-EMM-14/02 : Author(s): N. Ratcliffe, S.L. Hill, I.J. Staniland, R. Brown, S. Adlard, C. Horswill and P.N. Trathan (United Kingdom)
ANALYSIS OF VARIABILITY OF KRILL SIZE AND FISH BY-CATCH IN JAPANESE KRILL FISHERY BASED ON SCIENTIFIC OBSERVER DATA
Abstract: To investigate spatio-temporal variability of krill body length and number of bycatch ... fish, observer data sets on Japanese krill fishery from 1995 to 2008 were analyzed by using ... dynamics from observation error caused by the fishery activity and individual observation. In both krill ... variability of krill population structure and a difficulty in predicting krill population dynamics. Variances ...
Meeting Document : WG-EMM-11/39 : Author(s): T. Okuda and M. Kiyota (Japan)
Acoustic biomass estimates of Antarctic krill in Subarea 48.1 to facilitate the development of the new management approach for the krill fishery
Abstract: The pre-exploitation krill biomass estimates, B 0, is essential for generating ... the Precautionary Catch Limit (PCL) for sound science-based krill fishery management. In 2019, a multi-member large ... -scale synoptic acoustic survey was conducted to provide krill biomass estimates for Area 48, whilst ... various mesoscale surveys were also conducted in Subarea 48.1. Krill biomass estimates for the four US ...
Meeting Document : SC-CAMLR-40/11 : Author(s): Delegation of the People’s Republic of China