Epinephrine and l-DOPA promote larval settlement and metamorphosis of the tropical oyster, Crassostrea iredalei (Faustino, 1932): An oyster hatchery perspective

The critical and foundation stage of most invertebrates is during the larval settlement and metamorphosis period. Neuroactive compounds at different levels of concentration and exposure time are frequently used as an inducer in the settlement of most bivalve larvae. The larval settlement of the trop...

Full description

Saved in:
Bibliographic Details
Published in:Aquaculture 2012-03, Vol.338-341, p.260-263
Main Authors: Teh, C.P., Zulfigar, Y., Tan, S.H.
Format: Article
Language:English
Subjects:
Aquaculture
Bivalvia
Cemented larvae
Crassostrea
Crassostrea iredalei
epinephrine
exposure duration
hatcheries
L-dopa
larvae
Marine
metamorphosis
Mortality
Neuroactive compounds
Oyster
Oysters
Spat
Studies
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The critical and foundation stage of most invertebrates is during the larval settlement and metamorphosis period. Neuroactive compounds at different levels of concentration and exposure time are frequently used as an inducer in the settlement of most bivalve larvae. The larval settlement of the tropical oyster Crassostrea iredalei was investigated by exposing competent larvae to epinephrine (EPI) and l-3,4-dihydroxyphenylalanine (l-DOPA) at five different concentrations (10−3, 10−4, 10−5, 10−6 and 10−7M) for 1 and 24h. The control group consisted of the larvae exposed to 1μm filtered seawater. The optimum yield, 60% of cemented spat, was recorded when larvae were exposed to 10−6M EPI for 1 and 24h. Larvae exposed to all concentrations of l-DOPA yielded lower percentages of cemented spats (
ISSN:0044-8486
1873-5622
DOI:10.1016/j.aquaculture.2012.01.014