Partial emergence of the bivalve Donax vittatus in response to abrupt changes in light intensity and before spawning

Alan D Ansell, C P Gunther, Michael Burrows

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Buried individuals of the bivalve Donax vittatus (Bivalvia: Donacidae) respond to change in incident light intensity by adjusting their position in the sediment. Video recordings of activity in aquarium tanks in natural daylight revealed that individuals responded to shading by moving upwards, causing some to partially emerge from the sand. Subsequent removal of the shading stimulated reburial to the normal position. Recordings in laboratory aquaria show similar upward movement and partial emergence occurring when illumination in the visible range is switched off. Upward movement and partial emergence of D. vittatus has also been observed to take place prior to spawning.
Original languageEnglish
Pages (from-to)669-672
Number of pages4
JournalJ MAR BIOL ASSOC UK
Volume78
Issue number2
Publication statusPublished - 1998

    Fingerprint

Cite this