Ichthyological Research

, Volume 58, Issue 2, pp 188–190 | Cite as

Rearing and spawning of the deep-sea fish Malacocottus gibber in the laboratory

  • Yusuke TsuruwakaEmail author
  • Eriko Shimada
News and Comments

Malacocottus gibber is a member of the family Psychrolutidae (superfamily Cottoidea) that is endemic to the Japan Sea (Shinohara et al. 1992; Nelson 2006). M. gibber is demersal and inhabits deep-sea habitats (250–1,740 m depth) (Adachi et al. 2009). During the winter (November–February), the fish migrate vertically to depths of 50–100 m (Shinohara et al. 1992). Other than basic descriptions of their biology, little is known about most deep-sea fish species. Members of the family Psychrolutidae inhabit shallow- and deep-sea environments (Shinohara et al. 1992; Adachi et al. 2009). Thus, this family is an ideal model to determine the mechanisms of adaptation of fishes to the deep-sea environment. However, studies of deep-sea fishes are hindered by the difficulties associated with capturing and observing them at depth. Our objective was to evaluate the potential for rearing and spawning adult M. gibber in captivity.

Collection and rearing of adult fish.In February 2009, we collected...



The authors would like to thank two anonymous reviewers for their useful comments. We thank the staff at the Nyuzen Deep Seawater Facility and the Uozu Aquarium for their assistance with rearing the fish. We also thank Mr. Yasushi Okajima and Mr. Takayuki Kumagai for their support and insight.

Supplementary material

ESM Movie S1 Feeding behavior of Malacocottus gibber (MOV 8362 kb)


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Copyright information

© The Ichthyological Society of Japan 2011

Authors and Affiliations

  1. 1.Marine Biodiversity Research Program, Institute of BiogeosciencesJapan Agency for Marine-Earth Science and Technology (JAMSTEC)YokosukaJapan
  2. 2.Division of Applied Biosciences, Graduate School of AgricultureKyoto UniversityKyotoJapan

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