Catch information for cod Gadus morhua, which were collected in Kandalaksha Bay, White Sea, Russia, in 2014, and
Dolly Varden Salvelinus malma, which were collected in Kronotskoe Lake in Eastern
Kamchatka, Russia, in 2013. In both places fish were caught with identical
monofilament gill nets of different mesh sizes with a 0.5 hanging ratio. The
length of the nets was 30 m for cod and 15 m for Dolly Varden and the height of
the nets was 1.5 m in both cases. The duration of the fishing operation was 12
h (from sunset to dawn) for both species and number of fishing operations was
11 for cod and 9 for Dolly Varden. Dolly Varden were caught with gill nets of
22, 25, 30 and 35 mm mesh size (knot to knot) and cod were caught with gill
nets of 20, 25 and 30 mm mesh size. The different mesh size nets were set
together and were fished concurrently. In both cases nets were set in the afternoon
and retrieved the following morning. In total, 694 cod and 783 Dolly Varden were
caught.