Data file(s): Ichti.xls 

Format:

Ship (station) name: F/R "Ichthiandr" (SEKB "Gidronavt", USSR)

Expedition: the 8-the expedition, March - August, 1982
 
Parameters:  up to 6 character unique sample identifier:
Species  total number of specimen in sample;
Count  number of specimens in sample;
Full Weight  total weight of species in sample in g;
Avg Weight  average dry weight of species in sample in g;
Length min  minimum standard length of species in mm;
Length max  maximum standard length of species in mm.

Instruments and methods: The fish catches were carried out by the industrial midwater  non-closed trawl with minimum mesh size  of 20 mm in the trawl bag. Vertical opening of the trawl made from 15 to 45 m. The trawling duration under catches in the sound-scattering layers made 1 hour, under fish schools catches  from 40 min. To 2 hours and 20 min. Speed of trawling made 3.2-4.2 knots.
The catches horizons were determined by the state of sound-scattering layers and fish schools. At night they carried out catches of 40-1195 m. At the day time they trawled at a range of 205-720 m depths.
Each catch was weighted. Fish was determined up to the lowest taxonomic ranks  species, in some cases  genus. Total number and weight of each species in a catch, and average dry weight of  one specimen of a species were determined. The standard  fish body length (SL) was measured in mm (from the tip of  snout to the basement of the middle rays of the caudal fin). The samples were fixed in 10% buffered formaldehyde for further  processing in the IBSS laboratories. 

Accuracy:

Processing: A.R. Boltachev, E. B. Melnikova, 

Principal investigators: A.R.  Boltachev  (IBSS, Sevastopol, Ukraine)

Digitization:  entered at the IBSS (Sevastopol, Ukraine).

Remarks:

Completed by: A. R. Boltachev, E. B. Melnikova, 

Date: 15.04. 002

Source of data: IBSS, Sevastopol, Ukraine.
