On the unusual timing of catching pink salmon Oncorhynchus gorbuscha (Salmonidae) on Kunashir Island
On Kunashir Island (southern Kuril Islands), an adult pink salmon Oncorhynchus gorbuscha was caught in Valentina Lake in March 2017, while the spawning migration of this species runs from mid-July to late October. It was a female of 46.5 cm length and 740 g. Gonad weight was 14 g. Only 3 of 490 eggs had an average diameter of 4.3 mm, the rest were undeveloped. Thirty-eight sclerites were counted on the scales, and the second annual ring was absent. No food was found in the stomach, judging by the Fullton coefficient of fatness according to 0.90 (usually this figure for fish from the mass passage is 1.42), the individual was in a state of exhaustion.