Environmental Biology of Fishes

, Volume 45, Issue 4, pp 397–404

Filial cannibalism by mouthbrooding males of the cardinal fish,Apogon doederleini, in relation to their physical condition

  • Noboru Okuda
  • Yasunobu Yanagisawa
Article

DOI: 10.1007/BF00002532

Cite this article as:
Okuda, N. & Yanagisawa, Y. Environ Biol Fish (1996) 45: 397. doi:10.1007/BF00002532

Synopsis

Paternal brood cannibalism was observed in a population ofApogon doederleini in Shikoku Island, Japan. Of 361 egg masses mouthbrooded by males, 47 disappeared within a day of spawning. A stomach check with a syringe ascertained that they had been consumed by the males. The frequency of this cannibalism increased as the breeding season advanced. As males completed 4–7 breeding cycles in a breeding season and spent 80% of the time mouthbrooding without taking ordinary food, their physical condition deteriorated greatly late in the breeding season. We concluded that parental physical condition is an important factor in the occurrence of brood cannibalism.

Key words

Paternal careFastingEntire brood cannibalismApogonidae

Copyright information

© Kluwer Academic Publisher 1996

Authors and Affiliations

  • Noboru Okuda
    • 1
  • Yasunobu Yanagisawa
    • 1
  1. 1.Department of BiologyEhime UniversityMatsuyamaJapan
  2. 2.Center for Ecological ResearchKyoto UniversityOtsuJapan