Search results
-
Some comments on the procedure of krill target strength assessment in echosurveys
in echosurveys is discussed. It is known that krill abundance and biomass estimation should be considered as two ... selectivity and catchability. Krill abundance estimation related to TS target strength values requires another ... of MSBS (MVBS) acoustic parameter distribution and krill length (weight) distribution in the study area ... . However, the information obtained in that case provides not only total krill abundance value but also ...
Meeting Document : WG-EMM-98/21 : Author(s): S.M. Kasatkina (Russia)
-
Analysis of the krill fishery in Subarea 48.1 considering trawl fishing method used (2010–2016)
Abstract: An analysis of spatio-temporal variability of CPUE indices in the krill fishery ... the standardized CPUE indices as krill biomass density indices for monitoring the variability of krill biomass ... in the Bransfield strait shows that despite intensive fishery the density of krill biomass during the fishing season ... did not decrease and even often increased there. The latter is an evidence of krill biomass ...
Meeting Document : WG-EMM-17/27 : Author(s): S. Kasatkina S. and L. Boronina
-
Target strength of Antarctic krill
Abstract: In-situ measurements of individual krill target strength are presented (modal value ... by the BIOMASS equation for 47.44mm krill. Author(s): R.P. Hewitt and D.A. Demer (USA) Title: Target strength ... of Antarctic krill Approval: Approved ... In-situ measurements of individual krill target strength are presented (modal value = -69db). Net ...
Meeting Document : WG-KRILL-91/13 : Author(s): R.P. Hewitt and D.A. Demer (USA)
-
Possible approach to krill movement estimation by hydroacoustic observations
Abstract: Method of estimation of krill drift velocity in water current,using repeated acoustic ... have to be determined with taking into account distribution patterns of krill,its patchiness, between ... of acoustic transects 4 hours. Author(s): P.P. Fedulov (USSR) Title: Possible approach to krill movement ... Method of estimation of krill drift velocity in water current,using repeated acoustic transects ...
Meeting Document : WG-KRILL-91/28 : Author(s): P.P. Fedulov (USSR)
-
30 years of krill fisheries management – challenges remain
Abstract: Current Antarctic krill fishing practices have been deviating from historical fishing ... frequently. The reproduction and survival of krill are significantly affected by sea ice cover ... . This is of concern since key spawning, recruitment and nursery areas of krill are located in the Southwest Atlantic ... of winter sea ice. CCAMLR needs to maintain a precautionary approach to krill fisheries management ...
Meeting Document : CCAMLR-XXX/BG/19 : Author(s): Submitted by ASOC
-
Upward adjustments to local catch limits for the krill fishery in Subarea 48.1
adjustments to local catch limits for the krill fishery in Subarea 48.1. We use the term local catch limit ... to local catch limits as one component of a larger strategy for feedback management (FBM) of the krill ... , 2) repeat acoustic surveys to identify years when local krill biomass increases during the fishing season ... been a concomitant increase in local krill biomass. We demonstrate that a simple index based ...
Meeting Document : WG-EMM-16/47 : Author(s): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries
-
Antarctic krill populations in the outflow region of the north-western Weddell Sea
Abstract: A meso-scale zooplankton and krill net sampling survey was carried out in the north ... March 2013. The aim of the survey was to study the zooplankton composition and krill abundance ... of the survey area was covered by ice during the summer season. Antarctic krill densities were found ... to be highest in the western Peninsula region and lower in ice-covered Weddell Sea waters. Overall krill density ...
Meeting Document : WG-EMM-13/24 : Author(s): V. Siegel (European Union)
-
Distributions and predator-prey interactions of macaroni penguins, Antarctic fur seals, and Antarctic krill near Bird Island, South Georgia
. Simultaneous surveys of marine birds, Antarctic fur seals and Antarctic krill were conducted along a series ... between the distributions of predators and their prey with respect to the abundance of krill in the water ... correlations with Antarctic krill density across a wide range of spatial scales. Because krill was abundant ... , we were able to demonstrate an additional influence of Antarctic krill abundance at measurement ...
Meeting Document : WG-CEMP-93/12 : Author(s): G.L. Hunt, Jr (USA), D. Heinemann (USA) and I. Everson (United Kingdom)
-
Observation on the interactions between marine mammals and mid-water krill trawl
Abstract: An observation on the interaction between marine mammal and krill midwater trawl ... was carried out onboard the Chinese krill fishing vessel Fu Rong Hai during the 2018/19 fishing season ... either. Simultaneous observation of krill swarms detected by the echosounder revealed a linkage between ... the behavior of the seal and the depth of krill swarms. It is speculated that when krill swarms were available ...
Meeting Document : WG-FSA-2019/60 : Author(s): Y. Ying, G. Fan, X. Zhao, J. Zhang, X. Wang and J. Zhu
-
Antarctic krill and climate change
krill Euphausia superba and environmental sciences attended a workshop aiming to evaluate new knowledge ... on the impact of climate change and increasing fisheries on Antarctic krill and Antarctic ecosystems ... change on krill is probably negative. To be able to account for climate change-induced ramifications ... on Antarctic krill and ecosystems, the adaptive capacity of the fisheries management of CCAMLR must be enhanced ...
Meeting Document : SC-CAMLR-XXX/BG/03 : Author(s): Delegation of the European Union