マコガレイの初期生活史〔若狭湾におけるカレイ目魚類の初期生活史の研究-3-〕

概要

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The early life history of a flounder Limanda yokohamae (GÜNTHER) was studied in the western Wakasa Bay, the Japan Sea. General morphology and characteristics of the larvae and juveniles ranging from 3.05mm to 9.90mm BL, were described. Judging from records of occurrence of early larvae, actual spawning may occur in the western Wakasa Bay during the short period from late January to early February. Prelarvae were caught mainly off the mouth of Maizuru Bay, early postlarvae were caught around the mouth of the Bay, and late postlarvae were caught mainly in the central part of the Bay. Early juveniles were captured in the beach of the Bay, and this area may be their nursery ground. Analyses of the gut contents showed that the food items were phytoplankton, veliger larvae and copepod nauplii in prelarvae, veliger larvae, copepod nauplii and copepods in postlarvae, and copepods, nematoda and polychaeta in early juveniles.
日本水産學會の論文