Basic reproductive biology of the barbed pipefish Urocampus nanus (Syngnathidae) under laboratory conditions

Atsushi Sogabe, Ryota Kawanishi, Hiromi Takata, Yasuhisa Kobayashi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The mating behaviour, fecundity characteristics and egg production process were investigated in the barbed pipefish Urocampus nanus under aquarium conditions. The mating behaviour consisted of five motor patterns, some of which have been generally reported in other syngnathids. Neither the number nor size of newborns related to the size of parents, although there was a negative correlation between the number and size of newborns. The ovary consisted of two germinal ridges, and mature eggs were produced synchronously with multiple ovulations. This type of egg production has thus far been reported only in a polyandrous and sex-role-reversed pipefish.

Original languageEnglish
Pages (from-to)77-82
Number of pages6
JournalIchthyological Research
Volume59
Issue number1
DOIs
Publication statusPublished - Jan 1 2012

Keywords

  • Oogenesis
  • Spawning
  • Syngnathidae
  • Urocampus nanus

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

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