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Growth, survival and byssal attachment of the blacklip pearl oyster Pinctada margaritifera (Linnaeus 1758) spat exposed to different salinities

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Relation http://eprints.cmfri.org.in/13349/
http://epubs.icar.org.in/ejournal/index.php/IJF/issue/view/2488
10.21077/ijf.2018.65.4.44902-08
 
Title Growth, survival and byssal attachment of the blacklip pearl oyster Pinctada margaritifera (Linnaeus 1758) spat exposed to different salinities
 
Creator Libini, C L
Albert Idu, K A
Manjumol, C C
Kripa, V
Mohamed, K S
 
Subject Pearl oyster
 
Description The influence of salinity on growth, survival and byssal fibre attachment of the blacklip pearl oyster, Pinctada margaritifera spat was assessed. P. margaritifera enjoys a coastal distribution in the intertidal reef flats of Andaman and Nicobar Islands, with maximum density at 5 -10 m depth, where drastic changes in environmental parameters such as salinity, temperature and turbidity occur. Spat showed comparatively good growth in terms of instantaneous growth rates (IGRs) of dorso-ventral measurement (DVM), antero-posterior measurement (APM) and total weight (TWT) in a wide range of test salinities from 19 to 37 psu; IGRs were drastically decreased in spat reared at lower and higher salinities outside of this range. The highlight of the present study was better growth performance and 100% survival of P. margaritifera spat at lower salinity levels
(22-28 psu) than in the ambient salinity (31 psu). The study also showed that sudden exposure to a higher salinity (above 40 psu) will be helpful for detachment of P. margaritifera spat from settlement tanks in the hatchery to facilitate stress-free spat transfer to sea farming systems. This will be useful in adopting the Japanese technique on post-operative culture for producing high quality pearls from P. margaritifera.
 
Date 2018
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/13349/1/K%20S%20Mohammed_V%20Kripa_2018_Indian%20Journal%20of%20Fisheries_65-4_Growth%2C%20survival%20and%20byssal%20attachment%20of%20the%20blacklip%20pearl%20oyster.pdf.pdf
Libini, C L and Albert Idu, K A and Manjumol, C C and Kripa, V and Mohamed, K S (2018) Growth, survival and byssal attachment of the blacklip pearl oyster Pinctada margaritifera (Linnaeus 1758) spat exposed to different salinities. Indian Journal of Fisheries, 65 (4). pp. 68-74.