Spawning behavior of the goby, Lubricogobius exiguus

(56.6MB, 00:00:46)
Shot Date: 2023/07/02
Shot Location: Oto Coast, Kasasa, Minamisatsuma City, Kagoshima Prefecture, Japan

species
Lubricogobius exiguus

Key Words
reproductive behavior
Gobiidae
hermaphroditism
bidirectional sex change
monogamy


Takumi Oyama
2025/11/09 submitted



Animalia >Chordata >Actinopterygii >Perciformes >Gobiidae >Lubricogobius >

A pair of the goby Lubricogobius exiguus spawns inside a nest (an empty bottle). A yellow egg clutch is attached to the upper inner wall of the nest. The female (on the right), which has well-developed ovaries in the abdomen, is spawning (at 15 s). The male then moves forward from the back of the nest, following the female (at 33 s). At this time, the male rubs his genital papilla against the egg clutch, which is presumed to be related to sperm release or fertilization. Subsequently, the male uses his mouth to adjust and attach the eggs on the inner wall of the nest (at 35 s).

(Data No.momo251031le01b)

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