Bidirectional Sex Change in Seven Species of Priolepis (Actinopterygii: Gobiidae)
Authors: Manabe, Hisaya; Toyoda, Katsuya; Nagamoto, Kaori; Dewa, Shin-Ichi; Sakurai, Makoto; Hagiwara, Kiyoshi; Shinomiya, Akihiko; Sunobe, Tomoki
Source: Bulletin of Marine Science, Volume 89, Number 2, April 2013 , pp. 635-642(8)
Abstract:Bidirectional sex change in the gobies, Priolepis akihitoi Hoese and Larson, 2010, Priolepis cincta (Regan, 1908), Priolepis latifascima Winterbottom and Burridge, 1993, and Priolepis semidoliata (Valenciennes, 1837), was confirmed by rearing experiments. In female-female pairs, the larger individual changed sex to male, and in male-male pairs, the smaller changed to female. The gonads of these species simultaneously formed ovarian and testicular portions with an accessory gonadal structure. As the gonad structure in Priolepis borea (Snyder, 1909), Priolepis fallacincta Winterbottom and Burridge, 1992, and Priolepis inhaca (Smith, 1949) has the same form as in the above species, the latter are also likely to undergo bidirectional sex change. The natural occurrence of P. akihitoi, P. cincta, and P. semidoliata as solitary or paired (male and female) individuals inhabiting cave or rocky crevices suggests that the mating system of these species is monogamous.
Document Type: Short Communication
Publication date: April 1, 2013
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