Effects of co-cultured common carp on nutrients and food web dynamics in rohu aquaculture ponds

Using the common carp Cyprinus carpio L. in polyculture ponds to increase both phyto- and zooplankton availability has become a popular practice for the cultivation of planktivorous fish, such as rohu Labeo rohita Hamilton. However, the dynamics of how common carp influences the environment and ecol...

Full description

Bibliographic Details
Main Author:	Rahman, Mohammad Mustafizur
Format:	Article
Language:	English
Published:	Inter-Research 2015
Subjects:	SH Aquaculture. Fisheries. Angling
Online Access:	http://irep.iium.edu.my/42539/ http://irep.iium.edu.my/42539/ http://irep.iium.edu.my/42539/ http://irep.iium.edu.my/42539/1/Rahman_MM%2C_2015-effect_of_co-cultured_common_carp.pdf

id	iium-42539
recordtype	eprints
spelling	iium-425392015-07-01T05:57:32Z http://irep.iium.edu.my/42539/ Effects of co-cultured common carp on nutrients and food web dynamics in rohu aquaculture ponds Rahman, Mohammad Mustafizur SH Aquaculture. Fisheries. Angling Using the common carp Cyprinus carpio L. in polyculture ponds to increase both phyto- and zooplankton availability has become a popular practice for the cultivation of planktivorous fish, such as rohu Labeo rohita Hamilton. However, the dynamics of how common carp influences the environment and ecology in polyculture ponds are unclear. In the present study, the effects of various stocking densities (0, 0.5 and 1 m−2) of common carp on the dynamics of nutrients, phytoplankton, zooplankton and benthic macroinvertebrates were investigated every other week over a 137 d period in rohu (density: 1.5 m−2) ponds under fed and unfed conditions. All environmental parameters and all groups of phytoplankton, zooplankton and benthic macroinvertebrates significantly changed over time, although trends in these changes were inconsistent at different common carp densities. The correlation between phosphate-phosphorus (PO4-P) and total phytoplankton biomass indicated that the phytoplankton biomass was limited by low PO4-P concentrations in ponds without common carp. Common carp-driven resuspension increased N and P fluxes from the sediment to the water column and subsequently increased primary and secondary production. A stocking density of 0.5 common carp m−2 had strong effects on nutrients and both phyto- and zooplankton availability, with an increasing trend over time. These effects were partially lost in ponds with 1 common carp m−2, which can be considered as overstocking. This study suggests that an optimal density of common carp can be used as a management tool to manipulate the aquaculture environment for better growth and production of fish. Inter-Research 2015-03-31 Article PeerReviewed application/pdf en http://irep.iium.edu.my/42539/1/Rahman_MM%2C_2015-effect_of_co-cultured_common_carp.pdf Rahman, Mohammad Mustafizur (2015) Effects of co-cultured common carp on nutrients and food web dynamics in rohu aquaculture ponds. Aquaculture Environment Interactions, 6 (3). pp. 223-232. ISSN 1869-7534 (Online), 1869-215X (print) http://www.int-res.com/journals/aei/aei-home/ 10.3354/aei00127
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	SH Aquaculture. Fisheries. Angling
spellingShingle	SH Aquaculture. Fisheries. Angling Rahman, Mohammad Mustafizur Effects of co-cultured common carp on nutrients and food web dynamics in rohu aquaculture ponds
description	Using the common carp Cyprinus carpio L. in polyculture ponds to increase both phyto- and zooplankton availability has become a popular practice for the cultivation of planktivorous fish, such as rohu Labeo rohita Hamilton. However, the dynamics of how common carp influences the environment and ecology in polyculture ponds are unclear. In the present study, the effects of various stocking densities (0, 0.5 and 1 m−2) of common carp on the dynamics of nutrients, phytoplankton, zooplankton and benthic macroinvertebrates were investigated every other week over a 137 d period in rohu (density: 1.5 m−2) ponds under fed and unfed conditions. All environmental parameters and all groups of phytoplankton, zooplankton and benthic macroinvertebrates significantly changed over time, although trends in these changes were inconsistent at different common carp densities. The correlation between phosphate-phosphorus (PO4-P) and total phytoplankton biomass indicated that the phytoplankton biomass was limited by low PO4-P concentrations in ponds without common carp. Common carp-driven resuspension increased N and P fluxes from the sediment to the water column and subsequently increased primary and secondary production. A stocking density of 0.5 common carp m−2 had strong effects on nutrients and both phyto- and zooplankton availability, with an increasing trend over time. These effects were partially lost in ponds with 1 common carp m−2, which can be considered as overstocking. This study suggests that an optimal density of common carp can be used as a management tool to manipulate the aquaculture environment for better growth and production of fish.
format	Article
author	Rahman, Mohammad Mustafizur
author_facet	Rahman, Mohammad Mustafizur
author_sort	Rahman, Mohammad Mustafizur
title	Effects of co-cultured common carp on nutrients and food web dynamics in rohu aquaculture ponds
title_short	Effects of co-cultured common carp on nutrients and food web dynamics in rohu aquaculture ponds
title_full	Effects of co-cultured common carp on nutrients and food web dynamics in rohu aquaculture ponds
title_fullStr	Effects of co-cultured common carp on nutrients and food web dynamics in rohu aquaculture ponds
title_full_unstemmed	Effects of co-cultured common carp on nutrients and food web dynamics in rohu aquaculture ponds
title_sort	effects of co-cultured common carp on nutrients and food web dynamics in rohu aquaculture ponds
publisher	Inter-Research
publishDate	2015
url	http://irep.iium.edu.my/42539/ http://irep.iium.edu.my/42539/ http://irep.iium.edu.my/42539/ http://irep.iium.edu.my/42539/1/Rahman_MM%2C_2015-effect_of_co-cultured_common_carp.pdf
first_indexed	2023-09-18T21:00:37Z
last_indexed	2023-09-18T21:00:37Z
_version_	1777410598430048256

Effects of co-cultured common carp on nutrients and food web dynamics in rohu aquaculture ponds

Similar Items