Relationships between water quality parameters and ectocommensal ciliates on prawns (Penaeus japonicus Bate) in aquaculture

Hudson D.A. and Lester R.J.G. (1992) Relationships between water quality parameters and ectocommensal ciliates on prawns (Penaeus japonicus Bate) in aquaculture. Aquaculture, 105 3-4: 269-280. doi:10.1016/0044-8486(92)90092-Y


Author Hudson D.A.
Lester R.J.G.
Title Relationships between water quality parameters and ectocommensal ciliates on prawns (Penaeus japonicus Bate) in aquaculture
Journal name Aquaculture   Check publisher's open access policy
ISSN 0044-8486
Publication date 1992-08-01
Sub-type Article (original research)
DOI 10.1016/0044-8486(92)90092-Y
Volume 105
Issue 3-4
Start page 269
End page 280
Total pages 12
Subject 1104 Complementary and Alternative Medicine
Abstract Prawns, Penaeus japonicus (Bate), cultured in two ponds were examined microscopically for the presence of ectocommensal ciliates on their gills and water quality parameters measured. Positive correlations were found between: temperature and BOD; temperature and nitrate; pH and salinity; salinity and COD; and turbidity and ortho-phosphate. Negative correlations occurred between: temperature and DO; DO and BOD; and BOD and COD. Differences existed between the ponds for correlations associated with turbidity and algal density, possibly due to the differing pond bottoms. Ciliates in the genera Cothurnia, Zoothamnium, Acineta, Ephelota and Lagenophrys were observed, with the first two dominating on 96% of the prawns examined. As the water quality decreased the numbers of Zoothamnium increased and the numbers of Cothurnia decreased.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 14 Jun 2016, 13:58:01 EST by System User