Changes in the photosynthetic activity of Microcystis colonies after gut passage through Nile tilapia (Oreochromis niloticus) and silver carp (Hypophthalmichthys molitrix)

JANČULA, Daniel, Blahoslav MARŠÁLEK, Michaela MÍKOVCOVÁ and Zdeněk ADÁMEK. Changes in the photosynthetic activity of Microcystis colonies after gut passage through Nile tilapia (Oreochromis niloticus) and silver carp (Hypophthalmichthys molitrix). Aquaculture Research. 2008, vol. 39, No 3, p. 311-314. ISSN 1355-557X.

Basic information

Original name

Changes in the photosynthetic activity of Microcystis colonies after gut passage through Nile tilapia (Oreochromis niloticus) and silver carp (Hypophthalmichthys molitrix)

Name in Czech

Změny ve fotosyntetické aktivitě sinic Microcysis spp. po průchodu trávicím traktem tilapie nilské a tolstolobika bílého

Authors

JANČULA, Daniel (203 Czech Republic, guarantor), Blahoslav MARŠÁLEK (203 Czech Republic), Michaela MÍKOVCOVÁ (203 Czech Republic) and Zdeněk ADÁMEK (203 Czech Republic)

Edition

Aquaculture Research, 2008, 1355-557X

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Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 0.991

RIV identification code

RIV/00216224:14310/08:00035339

Organization unit

Faculty of Science

UT WoS

000252707800010

Keywords in English

grazing; phytoplankton; cyanobacteria; SCA; fluorescence

Tags

cyanobacteria, fluorescence, Grazing, phytoplankton, SCA

Tags

International impact, Reviewed

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Abstract

V originále

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.

In Czech

Byla studována fotosyntetická aktivita sinic (především rodu Microcystis) po průchodu trávicím traktem ryb - tilapie nilské (Oreochromis niloticus) a tolstolobikem bílým (Hypophthalmichthys molitrix) pomocí metody zobrazení plošné distriguce fluorescence chlorofylu. Zatímco životaschopnost kolonií sinic byla redukována až z 92-95 procent po průchodu trávicím traktem tilapie nilské, životaschpnost kolonií po průchodu traktem tolstolobika byla stimulována.