Search results
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Short note: time series of Drake Passage Oscillation Index (DPOI) from 1952 to 2003, Antarctica
and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks affects ... the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in krill recruitment ... to as the Drake Passage Oscillation Index (DPOI). They found significant correlations between krill recruitment ... of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks affects the Antarctic ...
Meeting Document : WG-EMM-03/46 : Author(s): M. Naganobu and K. Kutsuwada (Japan)
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Long term variability in the diet and reproductive performance of penguins at Bird Island, South Georgia
krill Euphausia superba were present in 85 % of all diet samples. Fish were present in 79 % of samples ... frequently recorded species, in 51 % and 33 % of samples respectively. The energy or mass of krill ... at the same location. Our results suggest that the availability of krill is a key source of diet variability ... on pelagic and bentho-pelagic prey), while macaroni penguins are krill specialists (feeding on pelagic prey ...
Meeting Document : WG-EMM-17/P02 : Author(s): C.M. Waluda, S.L. Hill, H.J. Peat and P.N. Trathan
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Preliminary results of RV Dmitriy Stefanov researches in the Antarctic area of the Atlantic Ocean in April 1992
. The krill biomass was estimated in the beginning and at the end of surveys. It amounted to 56.1 and 61.2 ... thous. t respectively. During the rest of the period the hydroacoustic assessment of krill aggregation ... of perimeter. The midwater trawl hauls were made periodically. The average estimates of krill aggregation ... obtained. The balance of krill transport from and into the polygon was calculated. The first two dublicates ...
Meeting Document : WG-CEMP-92/33 : Author(s): L.G. Maklygin, V.N. Shnar, A.V. Remeslo, A.P. Malyshko, I.A. Trunov, I.A. Barabanov, V.P. Shopov (Russian Federation) and A.G. Shepelev (Ukraine)
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The feeding peculiarities of the Antarctic seals in the region of the archipelago of Argentina Islands
that krill (Euphausia superba) is the main type of food for the major species of seals in region. Krill makes ... in archipelago water area in which diet krill prevails also (about 70 %). Considering that from 5 seals species ... can be used as «species indicators» of krill distribution and quantity in the given region ... for working out of the management project for future rational use of krill sea stocks and squids in the given ...
Meeting Document : WG-EMM-12/P01 : Author(s): I. Dykyy
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Time series of Drake Passage Oscillation Index (DPOI) from 1952 to 2006, Antarctica
and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks affects ... the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in krill recruitment ... ). They found significant correlations between krill recruitment and DPOI. Additionally, we calculated a new ... of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks affects the Antarctic ...
Meeting Document : WG-EMM-06/13 : Author(s): M. Naganobu and K. Kutsuwada (Japan)
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The diet of Antarctic fur seals, Arctocephalus gazella, at King George Island, during the summer–autumn period
, krill and fish were the most frequent prey, occurring in an average of 97% and 69% of samples (n=128 ... were krill feeding species suggesting that seals foraged primarily on krill and opportunistically ... on fish species associated with krill swarms. A seasonal change observed in the relative proportions ... at Stranger Point, King George Island, by scat analysis from February to April 1996. Overall, krill and fish ...
Meeting Document : WG-EMM-04/4 : Author(s): G.A. Daneri, A.R. Carlini, C.M. Hernandez and A. Harrington (Argentina)
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Spectra analysis of Drake Passage Oscillation Index (DPOI) from 1952 to 2003, Antarctica
and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks affects ... the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in krill recruitment ... area during 1982-1998. They found significant correlations between krill recruitment and those factors ... of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks affects the Antarctic ...
Meeting Document : WG-EMM-04/46 : Author(s): M. Naganobu and K. Kutsuwada (Japan)
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Using predators and their prey to characterise the status of the marine ecosystem at South Georgia
, coupled with data that describe the density of their principal prey, Antarctic krill. Here we explore some ... ; (iii) variability in the krill population is evident at different spatial and temporal scales, some ... of which is important for predators, indeed when krill density is low, spatial variability and patchiness ... relationships between predators and krill density are not apparent, suggesting that correlative relationships ...
Meeting Document : WG-EMM-16/28 : Author(s): P. Trathan, S. Fielding, S. Hill, M. Belchier and J. Forcada
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By-catch of fishes caught by the fishery vessel Niitaka Maru in the South Georgia area (August to September 2004)
Abstract: Scientific observations on fishes incidentally caught during commercial krill fisheries ... of the Myctophidae. At least in the net hauls of high krill CPUE (>20t?krill/h), few or no by-catch fish ... was occurred. The hauls of lower krill CPUE (Author(s): T. Iwami, T. Hayashi, K. Taki and M. Naganobu (Japan ... Scientific observations on fishes incidentally caught during commercial krill fisheries ...
Meeting Document : WG-EMM-05/19 : Author(s): T. Iwami, T. Hayashi, K. Taki and M. Naganobu (Japan)
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Preliminary report on the South Orkneys Ecosystem Studies (SOES) field work undertaken by RRS James Clark Ross (JR15004) and associated field camps in January–February 2016
on the krill-based ecosystem in the main fishing area in Subarea 48 undertaken in the austral summer of 2015-16 ... of krill and its predators across a range of temporal and spatial scales using acoustics, nets and cameras ... information on important interactions between krill, krill predators and the commercial fishery ... component of the co-ordinated, multi-national South Orkney Ecosystems Studies focusing on the krill-based ...
Meeting Document : WG-EMM-16/19 : Author(s): J. Watkins, O.R. Godø, S. Fielding, C. Reiss, P. Trathan and E. Murphy