Ecological study on larvae and juveniles of the two sea basses and the three sparines occuurring in the Shimanto estuary, Japan
2005
Fujita, S.(Nishinihon Inst. of Technology, Kochi (Japan))
Much work has been done on the estuarine ichthyofauna on the east coast of United States. These studies well documented the importance of the estuary as a nursery for costal fishes In Japan, eelgrass beds, floating seaweeds and surf zones have been studied as to differential biotopes for early periods of fishes, but little is done about estuaries, Since 1985. I have conducted collections of larval and juvenile fishes in the Shimanto Estuary, Kochi Prefecture. Consequently I obtained many larvae and juveniles of fishes, many of which were commercially important species including two species of temperate basses, Lateolabrax japonicus and L. latus, and three species of sparids, Sparus sarba, Acanthopagrus schlegeli and A. latus. In the present study, I describe the larval and juvenile ichthyofauna of the Shimanto Estuary and the adjacent surf zones of sandy beaches Furthermore, I detail the early life history of temperate basses and sparids. Finally, consideration is given to the role of the Shimanto Estuary as a primary nursery.
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