Ontogenetic changes in phototaxis of queen conch Strombus gigas (Linne) veligers were studied in the laboratory and in field mesocosms. In the laboratory, larvae showed a strong positive phototaxis and negative geotaxis during early stages. Positive phototaxis decreased as a function of age from 100% positive response at Day 1 to ≈50% at metamorphic competency. In field mesocosm experiments, vertical position correlated significantly with light intensity. Vertical migration patterns were not affected by the presence or absence of solar UV, and did not vary as a function of ontogeny. The overall pattern of vertical distribution in the field appears to be controlled by negative geotaxis moderated by negative phototaxis at high light intensities.
Member of
Contributors
Publisher
Elsevier B.V.
Date Issued
1994
Note
Language
Type
Genre
Extent
17 p.
Subject (Topical)
Identifier
3331889
Additional Information
Ontogenetic changes in phototaxis of queen conch Strombus gigas (Linne) veligers were studied in the laboratory and in field mesocosms. In the laboratory, larvae showed a strong positive phototaxis and negative geotaxis during early stages. Positive phototaxis decreased as a function of age from 100% positive response at Day 1 to ≈50% at metamorphic competency. In field mesocosm experiments, vertical position correlated significantly with light intensity. Vertical migration patterns were not affected by the presence or absence of solar UV, and did not vary as a function of ontogeny. The overall pattern of vertical distribution in the field appears to be controlled by negative geotaxis moderated by negative phototaxis at high light intensities.
This manuscript is an author version with the final publication available at http://www.sciencedirect.com/science/journal/00220981 and may be cited as: Barile, P. J., Stoner, A. W., & Young, C. M. (1994). Phototaxis and vertical migration of the queen conch (Strombus gigas linne) veliger larvae. Journal of Experimental Marine Biology and Ecology, 183(2), 147-162. doi:10.1016/0022-0981(94)90084-1
Florida Atlantic University. Harbor Branch Oceanographic Institute contribution #1061.
Date Backup
1994
Date Text
1994
DOI
10.1016/0022-0981(94)90084-1
Date Issued (EDTF)
1994
Extension
FAU
FAU
admin_unit="FAU01", ingest_id="ing11833", creator="creator:BCHANG", creation_date="2012-01-12 08:09:05", modified_by="super:FAUDIG", modification_date="2014-02-13 08:34:45"
IID
FADT3331889
Issuance
single unit
Organizations
Attributed name: Harbor Branch Oceanographic Institute
Person Preferred Name
Barile, Peter J.
creator
Physical Description
17 p.
Title Plain
Phototaxis and vertical migration of the queen conch (Strombus gigas linne) veliger larvae
Origin Information
Elsevier B.V.
1994
single unit
Title
Phototaxis and vertical migration of the queen conch (Strombus gigas linne) veliger larvae
Other Title Info
Phototaxis and vertical migration of the queen conch (Strombus gigas linne) veliger larvae