Combined Effects of Dietary Phosphorus Level and Polyculture on Fish Production, Water Quality, and Plankton Composition, in Intensive Culture of Crucian Carp

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dc.contributor.authorLi B.
dc.contributor.authorChen M.
dc.contributor.authorLiao H.
dc.contributor.authorSun Y.
dc.contributor.authorTang H.
dc.date.accessioned2018-11-20T20:09:30Z
dc.date.available2018-11-20T20:09:30Z
dc.date.issued2018
dc.description.abstractThe combined effects of dietary phosphorus (P) levels and co-culture of silver and bighead carp on fish production, water quality, and the planktonic community in intensive culture of crucian carp (Carassius carassius) were studied in this enclosure experiment. There were four treatments with three replicates each: crucian carp (50 fish) fed with low (8.7 g/ kg) or high phosphorous (13.5 g/ kg) diets (L1 and H1), and polyculture (50 crucian carp + 10 silver carp + 10 bighead carp) fed with low or high-phosphorus diets (L3 and H3). Results suggested that polyculture with filter feeders suppresses crucian carp growth, especially when supplied with low phosphorus diet. Polyculture significantly enhanced the total fish production when crucian carp were fed a diet with high P levels. Dietary P level and polyculture with silver and bighead carp did not affect dissolved oxygen (DO), pH, water transparency, NH4+-N, total nitrogen, or any form of phosphorus (p < 0.05), while the presence of filter feeders significantly suppressed plankton. The present experiment suggested that silver carp is more suitable for polyculture with crucian carp, and a higher P level is needed to support plankton and reduce competition with crucian carp.
dc.format.extent11 pages
dc.identifier.issn0792-156X
dc.identifier.urihttp://hdl.handle.net/10524/59303
dc.subjectCarassius auratus
dc.subjectdiet phosphorus
dc.subjectpolyculture
dc.subjectfish production
dc.subjectwater quality
dc.subject.lcshFish culture--Israel.
dc.subject.lcshFish culture
dc.titleCombined Effects of Dietary Phosphorus Level and Polyculture on Fish Production, Water Quality, and Plankton Composition, in Intensive Culture of Crucian Carp
dc.typeArticle
dc.type.dcmiText

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