|
|
|
Romanian Journal of Biology - Zoology
ROMANIAN ACADEMY |
COMPARATIVE ASSESSMENT OF MICRO- AND MESOZOOPLANKTON IN DIFFERENT TYPES OF ECOSYSTEMS IN THE DANUBE DELTA (ROMANIA)
LARISA FLORESCU, LAURA PARPALĂ, RODICA CATANĂ*, MIRELA MOLDOVEANU
Abstract:
The pattern of species distribution and seasonal dynamics of micro- and mesozooplankton were studied in four different ecosystems from the Danube Delta, during productive seasons between 2011-2013. The differentiation in two size classes of zooplankton is linked to food availability and higher trophic levels. We studied two types of ecosystems, stagnant and flowing ones. Lake Roșu presented the highest species richness. Most of the species found in our study were accidental or accessory. Among the key species, Diaphanosoma brachyurum (mesozooplankton) and Polyarthra minor (microzooplankton) were the most representative in abundance and frequency. The structural similarity of the zooplankton communities found in our study might be due to the ecosystems connectivity. It was noticed a clear seasonal increasing of larger zooplankton in terms of abundance from spring to autumn. Environmental and biotic factors had significant influences on the both zooplankton groups. Juvenile stages were influenced by temperature and depth and pH and temperature controlled the adults of entire zooplankton.
Citation:
LARISA FLORESCU, LAURA PARPALĂ, RODICA CATANĂ*, MIRELA MOLDOVEANU, 2016. COMPARATIVE ASSESSMENT OF MICRO- AND MESOZOOPLANKTON IN DIFFERENT TYPES OF ECOSYSTEMS IN THE DANUBE DELTA (ROMANIA), Romanian Journal of Biology - Zoology, 61(1-2): 61–73.
PDF
|
© 2008 Institute of Biology. All right reserved.
Send mail to sorin.stefanut@ibiol.ro
with questions or comments about this web site. |