Search results
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Diet and trophic niche of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica
Abstract: The diet of Antarctic silverfish (Pleuragramma antarcticum) was evaluated by examining ... % respectively), with copepods being a relatively minor constituent of overall diet by weight (9.9%). Piscivory ... by silverfish occurred mainly in the extreme south-west of the region and near the continental slope ... . By weight, krill identified to species level in silverfish stomachs were predominantly Euphausia ...
Meeting Document : WG-EMM-12/54 : Author(s): M.H. Pinkerton, J. Forman, S.J. Bury, J. Brown, P. Horn and R.L. O’Driscoll (New Zealand)
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Assessment of krill biomass in fishing grounds using the data on fishing intensity and hydroacoustic method
krill biomass estimate produced by the echo integrating apparatus used in the layer fished with the ... catchability obtained by the hydroacoustic method and from the models of probabilistic-statistical theory of ... trawls were developed by Dr. Yu.V.Kadilnikov, Head of the AtlantNIRO Laboratory, with the exception of ... the methods of standardizing the fishing effort which were worked out by Ivanova V.F. She also made ...
Meeting Document : SC-CAMLR-VIII/BG/10 : Author(s): USSR
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RESPONSE OF ANTARCTIC BENTHIC COMMUNITIES TO DISTURBANCE: WRST RESULTS FROM THE ARTIWCIAL BENTHIC DISTURBANCE EXPERIMENT ON THE EASTERN WEDDELL SEA SHELF, ANTARCTICA
this experimental field study. By means of 11 densely-placed hauls with a modified bottom trawl, a ... communities were sampled (invertebrate assemblages by multibox corers, the fish fauna by trawl hauls) and ... comparatively analyzed. Sediment texture and chemistry was not significantly altered by the heavy disturbance ... inflicted by repeated trawling, whereas the fauna was negatively affected. Invertebrate benthic biomass was ...
Meeting Document : WS-VME-09/P05 : Author(s): Rossi, S., Mintenbeck, K., Knust, R., Isla, E., Gerdes, D.
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Hydrographic conditions in the Elephant Island plateau region during December 1996
Abstract: Based on historic data as provided by the World Ocean Atlas 1994, the general climatic ... Plateau Region by RV POLARSTERN, is compared to the climatic background data, and to more recent data as ... collected by German research vessels in this region. By means of a new interactive software water mass ... charts, referenced to 0/300 dbar reveal the general flow as given by the geostrophic part of the ...
Meeting Document : WG-EMM-97/06 : Author(s): Stein, M.
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The diet of black-browed albatrosses at the Diego Ramirez Islands, Chile
, Chile, during the early chick-rearing period of 2000, 2001 and 2002. Diet composition was determined by ... similar throughout the study, with diet being dominated by fish in all three years. Overall, the main ... items taken were the fishes Macruronus magellanicus (66-89% by mass) and Micromesistius australis (2.6 ... -3.7% by mass), which are both fisheries-related species, and the squid Martialia hyadesi (8-20% by ...
Meeting Document : WG-FSA-03/9 : Author(s): J. Arata (Chile) and J.C. Xavier (United Kingdom)
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UPDATE ON ITEMS OF INTEREST TO WG-IMAF
requirement of fishing practices to reduce seabird bycatch by surface longline vessels and the introduction of ... regulations to reduce seabird bycatch by bottom longline vessels. The bycatch of seabirds by fisheries within ... (Convention seabirds) is detailed. This paper includes a tabulation of observed captures by species and ... bycatch estimations by fishery for all seabirds. This paper also contains description of the recent and ...
Meeting Document : WG-FSA-08/47 : Author(s): N. Walker (New Zealand)
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Otolith microstructure of juvenile fish, the first annulus radius and pelagic stage duration of icefish Champsocephalus gunnari (Channichthyidae) in the South Georgia area
in the first 100 days of fish life was 6?k at fish length of 4 cm. By the 200th day the daily growth ... zone was 4.2?k at fish length 7.2 cm, by the 300th day – 3.5?k at fish length 11 cm, by the 400th day ... – 3.1?k at fish length of up to 11.8 cm, by the 500th day – 2.8?k at fish length of up to 12.5 cm. The ... period and by the end of the first summer of fish life approaches 5.5 – 10.4 cm. This corresponds to the ...
Meeting Document : WG-FSA-03/75 Rev. 1 : Author(s): L.V. Shcherbich (Russia)
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Towards an assessment of the stock of the ommastrephid squid Martialia hyadesi in the Scotia Sea: data from predators
and Ommastrephidae. Fisheries for the latter have been characterised by dramatically fluctuating ... seal and is probably taken in significant quantities by several other Southern Ocean vertebrate ... predators. Estimated annual consumption by known predators in the Scotia Sea is 326098- 330642 tonnes, 94 ... % of which is taken by southern elephant seals, and the other species may take at least a further 51400 ...
Meeting Document : SC-CAMLR-IX/BG/13 : Author(s): Delegation of United Kingdom
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The food and feeding of five species of icefish in the Elephant Island – South Shetland Islands Region in March 2003
fed on krill and fish with some differences found between Elephant Island and the South Shetland ... proportion of the stomachs was found to be empty in C. aceratus and C. antarcticus. Author(s): K.-H. Kock ... and fish with some differences found between Elephant Island and the South Shetland Islands. The bulk ... at Elephant Island and preyed on krill and fish further south. A large proportion of the stomachs was found ...
Meeting Document : WG-FSA-03/60 : Author(s): K.-H. Kock, H. Flores (Germany), C.D. Jones (USA), S. Wilhelms and S. Schöling (Germany)
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Potential effects of UV-B on krill – experimental and genetic studies
survived. Addition of ultraviolet-B typical of depths up to 15 m were found to significantly accelerate ... various treatments was found not to vary. Author(s): S. Newman, S. Jarman, S. Nicol, D. Ritz, H. Marchant ... . Addition of ultraviolet-B typical of depths up to 15 m were found to significantly accelerate mortality ... treatments was found not to vary. ...
Meeting Document : WG-EMM-99/24 : Author(s): S. Newman, S. Jarman, S. Nicol, D. Ritz, H. Marchant, N. Elliot and A. McMinn (Australia)