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Changes in the photosynthetic activity of Microcystis colonies after gut passage through Nile tilapia ( Oreochromis niloticus ) and silver carp ( Hypophthalmichthys molitrix )
Author(s) -
Jančula Daniel,
Míkovcová Michaela,
Adámek Zdeněk,
Maršálek Blahoslav
Publication year - 2008
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/j.1365-2109.2007.01892.x
Subject(s) - hypophthalmichthys , silver carp , oreochromis , nile tilapia , biology , microcystis , tilapia , fishery , carp , cyanobacteria , aquatic animal , botany , fish <actinopterygii> , bacteria , genetics
The photosynthetic activity of cyanobacteria (predominantly Microcystis spp.) after passage through the digestive tract of Nile tilapia ( Oreochromis niloticus ) and silver carp ( Hypophthalmichthys molitrix ) was determined by CCD fluorescence imaging, using slow complementary area approach, during a 4‐day cultivation of fish faeces in algal ZBB medium. The cyanobacteria colonies exhibited a 92–95% reduction in of activity ( P <0.001) after passage through Nile tilapia, whereas there was a significant ( P <0.01) stimulation of photosynthetic activity after passage through the silver carp gut.