Search results
-
Definition of the problem of estimating fish abundance over an area from acoustic line transect measurements of density
conditions, fish density can be measured with high accuracy along line transects. Observed variations in fish ... . The particular problem of estimating fish abundance over an area from line-transect measurements of fish density ... : Definition of the problem of estimating fish abundance over an area from acoustic line transect measurements ... The problem of acoustic abundance estimation is briefly reviewed. Under proper conditions, fish ...
Meeting Document : WG-KRILL-91/08 : Author(s): K.G. Foote and G. Stefánsson (Norway)
-
Fishes incidentally caught by Japanese Antarctic krill commercial fishery to the north of the South Shetland Islands in February 1997
Abstract: Scientific observations on fishes incidentally caught during krill fisheries ... hauls. Except for one channichthyid juvenile of Neopagetopsis ionah, by-catch fishes were referred ... to the bathypelagic families, the Myctophidae, Paralepididae and Scopelarchidae. Among by-catch fishes, Electrona ... the abundance of by-catch fish and the krill CPUE. This observation is different from by-catch data made ...
Meeting Document : WG-EMM-97/72 : Author(s): Iwami, T., Ichii, T., Naganobu, M., Kawaguchi, S.
-
Migrations of Antarctic fish Pseudochaenichthys georgianus Norman, 1939 in the Scotia Sea
mostly young, small fishes. They have stomach filled well with krill so swim probably to match ... as was not in sampled area, have to be assumed to be near or under ice feeding on juvenile krill and fish; age ... group of 4 is separated from the 2th by low numbers fish in previous age group 3. This may save them ... before feeding of own younger fish – common fish behavior among predators. At South Orkney ...
Meeting Document : WG-FSA-12/68 Rev. 1 : Author(s): R. Traczyk (Poland)
-
Measurements of fish school velocities with an acoustic Doppler current profiler
Abstract: Horizontal and vertical velocities of fish schools were measured using an acoustic ... ), it was required that the four ADCP beams simultaneously insonified a fish school, in the same depth bin. Velocity ... and ensemble averaged to determine the average speeds and directions of fish aggregations. The results suggests ... that the ADCP can be a useful tool for observing fish behavior in certain situations. Some applications may ...
Meeting Document : WG-EMM-96/41 : Author(s): Demer, D.A.
-
Data on krill, Euphausia superba Dana, consumption by coastal fishes in Division 58.4.2 (Kosmonavtov and Sodruzhestva Seas)
fishes as its main consumers in the above areas. According to the data of trawlings in the depth range ... of 100-500 m in the area between 30 and 80°E, the total fish stock was evaluated to be 551.300 ... t. Seasonal (December-April) E.superba consumption by these fishes made 960.000 t. The data are given ... , the coastal fish diet may make up to 9-18% of annual production of this crustacean. Author(s): Delegation ...
Meeting Document : SC-CAMLR-X/BG/11 : Author(s): Delegation of USSR
-
Fish by-catch in the krill fishery: 2018 update
Abstract: Data on fish bycatch in the krill fishery from commercial catch data (120 949 hauls ... , length-frequency distribution and geographic provenance of the key fish taxa reported ... . There is an increase in the data quality from the observer scheme and an increase in the frequency of fish bycatch ... in both datasets. The length-frequency distribution of all taxa for which >200 fish were measured had ...
Meeting Document : WG-FSA-18/10 : Author(s): CCAMLR Secretariat
-
Fish in the diet of breeding Antarctic shags Phalacrocorax bransfieldensis at four colonies in the Danco Coast, Antarctic Peninsula
casts) collected from December 1997 to February 1998. Overall, demersal-benthic fish were the most ... frequent and important prey at all the colonies sampled, followed by octopods and gastropods. Among fish ... Point. Between colonies there were marked differences in the size of the fish consumed. The largest ... . This was mainly influenced by the number of specimens of the smallest fish species, H. antarcticus, consumed ...
Meeting Document : WG-EMM-00/9 : Author(s): R. Casaux, A. Baroni and E. Barrera-Oro (Argentina)
-
Comprehensive field guide of Antarctic fishes
Abstract: This paper outlines a proposal to develop a field guide for Antarctic fishes which ... would use photographs of live fish wherever possible. Author(s): N. Gasco (France) Title ... : Comprehensive field guide of Antarctic fishes Approval: Approved ... This paper outlines a proposal to develop a field guide for Antarctic fishes which would ...
Meeting Document : WG-FSA-11/40 : Author(s): N. Gasco (France)
-
Assessment of the stocks of abundant fish species in the South Georgia subarea (48.3) made on the basis of data obtained from the RV Atlantida trawl survey of April/May 1991
research into the status of Chaenichthyidae and Nototheniidae fish in Statistical Subarea 48.3 (South ... Georgia, Shag Rocks and Black Rocks). The minimum biomass of commercial fish species was calculated from ... , biology and size composition of commercial fish species. Author(s): V.I. Shiblanov, Zh.A. Frolkina, R.S ... . Dorovskikh, V.A. Khvichiya (USSR) Title: Assessment of the stocks of abundant fish species in the South ...
Meeting Document : WG-FSA-91/23 Rev. 1 : Author(s): V.I. Shiblanov, Zh.A. Frolkina, R.S. Dorovskikh, V.A. Khvichiya (USSR)
-
Preliminary information on inshore demersal fish from the Danco Coast, Antarctic Peninsula, in the 1999/00 summer season
Abstract: A total of 1103 inshore notothenioid fish were caught by means of trammel-nets in four ... , Channichthyidae and Bathydraconidae were represented being Notothenia coriiceps the dominant fish of the area ... and diet of the fish species caught are provided. The diet analysis showed general agreement on the feeding ... types and feeding behaviour of these fish species in other areas. Author(s): R. Casaux, E. Barrera-Oro ...
Meeting Document : WG-FSA-00/63 : Author(s): R. Casaux, E. Barrera-Oro, A. Baroni and A. Ramón