Biotic and Abiotic Factors Affecting the Population Dynamics of Ceratium hirundinella, Peridinium cinctum, and Peridiniopsis elpatiewskyi

Diversity

Behrouz Zarei Darki¹  AlexandrF. Krakhmalnyi² 

[1] Department of Marine Biology, Faculty of Marine Sciences, Tarbiat Modares University, Noor 46417-76489, Mazandaran Province, Iran;Institute for Evolutionary Ecology, NAS of Ukraine, 37, Lebedeva St., 03143 Kiev, Ukraine;

关键词: aquatic ecosystem;    dinoflagellates;    spatial distribution;    seasonal dynamics;    CCA analysis;    water quality;    Zayandeh Rud Reservoir;    Iran;   

DOI  :  10.3390/d11080137

来源: DOAJ

【 摘 要 】

The present research was conducted to assess the impact of abiotic and biotic factors on the growth of freshwater dinoflagellates such as Ceratium hirundinella, Peridinium cinctum, and Peridiniopsis elpatiewskyi, which reduce the quality of drinking water in the Zayandeh Rud Reservoir. To this end, 152 algal and zoological samples were collected from the reservoir located in the Central part of Iran in January, April, July, and October 2011. Abiotic factors such as pH, temperature, conductivity, transparency, dissolved oxygen, and nutrient concentration of the water were measured in all study stations. The results showed that the population dynamics of dinoflagellates in the Zayandeh Rud Reservoir was different depending on season, station, and depth. The findings proved that C. hirundinella was one of the dominant autumn planktons in the highest biovolume in the Zayandeh Rud Reservoir. While P. elpatiewskyi was present in the reservoir throughout a year with biovolume peak in summer. Accompanying bloom of P. elpatiewskyi and C. hirundinella, P. cinctum also grew in well-heated summer and autumn waters. It was further found that Ceratium density was positively correlated with sulfate ion concentrations, while the growth of P. cinctum and P. elpatiewskyi were associated, first and foremost, with NO₂⁻ and Mn.

【 授权许可】

Unknown