Deep-sea fishes from the Kurile-Kamchatka Trench collected by the R/V Sonne during the KuramBio II expedition in 2016. (April 2020)

• Record Type: Journal Article
• Authors: Shinohara, Gento; Kojima, Shigeaki; Fukumori, Hiroaki
• Is Part Of: Progress in oceanography. Volume 183(2020)
• Publication Date: 2020-04
• Subjects: Fish collection -- Gonostomatidae -- Macrouridae -- Myctophidae -- Systematics; Oceanography -- Periodicals; 551.4605
• DOI: 10.1016/j.pocean.2020.102275
• Languages: English
• ISSNs: 0079-6611

Abstract

Highlights: Deep-sea fishes were collected from the Kurile-Kamchatka Trench in 2016. TMAO and stomach contents showed midwater occurrence of the macrourid specimens. The macrourid larva was identified by morphological and molecular analysis. New data were compared with results of the voyage of the R/V Vityaz III in 1966. Abstract: Deep-sea fishes were collected by the R/V Sonne from the Kurile-Kamchatka Trench during the summer of 2016. A total 17 specimens were collected by Agassiz trawl and multi-plankton nets. We identified them and provided a species list that includes 2 bristlemouths ( Cyclothone atraria and Sigmops gracilis ), 2 lanternfishes ( Stenobrachius leucopsarus and S. nannochir ) and 2 grenadiers ( Coryphaenoides acrolepis and C. cinereus ) with systematic and/or geographic information. Although C. acrolepis was captured by Agassiz trawl net that reached the sea floor at 5134–8729 m depths, the specimens were thought to be collected from midwaters based on analysis of trimethylamine N -oxide (TMAO) and stomach contents. A single macrourid larva collected by Agassiz trawl net was identified as C. cinereus by morphological and molecular identification. New collection data were compared with those of the 39th voyage of the R/V Vityaz III in the Kurile-Kamchatka Trench during the summer of 1966.