日本水産工学会誌
Online ISSN : 2189-7131
Print ISSN : 0916-7617
ISSN-L : 0916-7617
鹿児島県阿久根沖の人工マウンド礁に集まるイサキParapristipoma trilineatumの滞留時間と遊泳水深
伊藤 靖中村 憲司吉田 司
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ジャーナル オープンアクセス

2018 年 55 巻 1 号 p. 21-27

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We tracked ten threeline grunts (Parapristipoma trilineatum), using biotelemetry for 179 days around an artificial mound reef off the coast of Akune, Kagoshima Prefecture, Japan. Three resided around the artificial mound reef for about six months. Their swimming depth changed diurnally, being shallower during the day time and deeper the night time. However, during spawning periods, the cycle reversed: they swam deeper during the day time and shallower (30 - 35 meters deep) the night time. This appears to be a spawning behavior characteristic of threeline grunts.

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