Reproductive cycle and first maturation of red sea urchin, Pseudocentrotus depressus in Hirado Island, Nagasaki Prefecture, Japan

Seasonal changes of gonad index (GI) and gonadal histology were examined to clarify the annual reproductive cycle of red sea urchin, Pseudocentrotus depressus. Samples were collected in shallow waters at depth of 3-5 m in Hirado, Nagasaki Prefecture, from May 2002 to March 2005. The GI increased fro...

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Veröffentlicht in:	Suisan Zoshoku 2009-06, Vol.57 (2)
Hauptverfasser:	Watanabe, S.(Nagasaki-ken. Inst. of Fisheries (Japan)), Natukari, Y
Format:	Artikel
Sprache:	eng ; jpn
Schlagworte:	ANIMAL TISSUES BREEDING SEASONS EPOCA DE APAREAMIENTO GENITALIA MADUREZ SEXUAL MATURITE SEXUELLE PSEUDOCENTROTUS SAISON D'ACCOUPLEMENT SEXUAL MATURITY TEJIDOS ANIMALES TISSU ANIMAL
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