熱帯性海産魚ゴマアイゴSiganus guttatusの性分化および性成熟に関する形態学的及び実験的研究 : 琉球大学大学院理工学研究科博士論文 = Morphological and experimental studies on gonadal sex differentiation and sexual maturation in tropical marine teleost golden rabbitfish Siganus guttatus : a thesis submitted to the graduate school of the University of the Ryukyus in partial fulfillment of the requirements for the degree of doctor of philosophy in marine and environmental sciences/ 小松徹[著]