Spawning Behavior of Laboratory-reared Dragonet, Repomucenus huguenini, and development of its eggs and prolarvae.

DOI JASI 4 Citations 19 References
  • GONZALES Benjamin J.
    <I>Department of Fisheries, Faculty of Agriculture, Kochi University</I> <I>State Polytechnic College of Palawan-Institute of Marine Sciences</I>
  • OKAMURA Osamu
    <I>Department of Biology, Faculty of Science, Kochi University</I>
  • TANIGUCHI Nobuhiko
    <I>Department of Fisheries, Faculty of Agriculture, Kochi University</I>

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Other Title
  • 飼育下でのヤリヌメリの産卵行動, 受精卵および仔魚について

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Abstract

Adult Repomucenus huguenini were caught in the wild and allowed to spawn spontaneously in tanks. Spawning occurred almost every day, late in the afternoon and into the night, for 54 days. R. huguenini spawned within a restricted time (17: 00-21: 00) of the day at a relatively wide range of light intensity (2.5-105.0lux) . The eggs averaged 0.67 mm in diameter, being the same as that of congener R. beniteguri, but larger than that of confamilial P. enneactis. Hatching took place 18 h after spawning at 25.8-26.0°C in mid-autumn. The newly-hatched prolarvae measured 1.0 to 1.2 mm TL (mean, 1.03 ± 0.072 mm) . Most of the one-day-old prolarvae had an elongated caudal fin membrane considered to be species specific specialized larval character.

Journal

  • Aquaculture Science

    Aquaculture Science 44 (1), 7-15, 1996

    Japanese Society for Aquaculture Science

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