Science Links Japan | Significance of littoral zone in foreshore tidal flats as a nursery for fish larvae and juveniles in the inner part of Ariake Bay

Significance of littoral zone in foreshore tidal flats as a nursery for fish larvae and juveniles in the inner part of Ariake Bay

Accession number;07A0232971

Title;Significance of littoral zone in foreshore tidal flats as a nursery for fish larvae and juveniles in the inner part of Ariake Bay

Author; HIBINO MANABU (Aichikensuisangyoshinkokikin)

Journal Title;Aquabiology

Journal Code:S0220B

ISSN:0285-4376

VOL.29;NO.1;PAGE.61-68(2007)

Figure&Table&Reference;

Pub. Country;Japan

Language;Japanese

Abstract;A total of 23,404 larvae and juveniles of fish, over 65 species from 28 families, were collected by monthly samplings using small seine net and beam trawl along the littoral zone of sand-mudy area in the eastern bottom of Ariake Bay, during the period from March 1998 to May 1999. Dominant species were Konosirus puctatus (63% in numerical percentage of total fish) in spring, Leiognathus nuchalis (12%) in summer, Plecoglossus altivelis altivelis (5%) in autumn to winter with surf net, and Favonigobius gymnauchen (31%) and Acentrogobius pflaumii (16%) around the year and Acanthogobius flavimanus (9%) in spring with beam trawl. On the other hand, larvae and juveniles of the endemic species to Ariake Bay within Japan, being abundant in the Chikugo estuary, were hardly collected in the foreshore tidal flat. Foreshore (sand-mudy) tidal flat of Ariake Bay, where salinity is almost constant and relatively higher being around 30psu, were the important habitat as larval and juvenile nursery for various common and/or commercial species. (author abst.)

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