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Effect of pediveliger densities and cultch materials on spat settlement of black lip pearl oyster Pinctada margaritifera (Linnaeus, 1758) in hatchery

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Title Effect of pediveliger densities and cultch
materials on spat settlement of black
lip pearl oyster Pinctada margaritifera
(Linnaeus, 1758) in hatchery
Not Available
 
Creator Albert Idu,K A
Manjumol,C C
Libini,C L
Kripa,V
Mohamed,K S
 
Subject Pinctada margaritifera
hatchery
larval stocking
density
collectors
spat settlement
 
Description Not Available
The settlement of hatchery produced spat of the blacklip pearl
oyster Pinctada margaritifera was investigated with respect to
time of introduction of settlers, type of cultch material and the
larval (pediveliger) densities. The study clearly indicated that the
ideal time for deployment of spat collectors in the hatchery is
when the pediveligers are beginning to appear in the larval
rearing tank. In similar larval stocking densities, the settlement
was more on the spat collectors which were deployed when the
larvae had not metamorphosed to spat. Six different types of
cultch materials were tested for their efficiency in three larval
densities. The study showed that better spat collection of P.
margaritifera can be achieved in hatcheries by providing
darkness, and employing dark coloured, rough-surfaced,
corrugated and conditioned spat collectors such as the garden
shade spiral at higher larval densities of 1.0 nos/ml.
Not Available
 
Date 2021-09-16T08:12:48Z
2021-09-16T08:12:48Z
2013
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/63136
 
Language English
 
Relation Not Available
 
Publisher Marine Biological Association of India