Trophic Status and Phytoplankton Limitation Conditions in a Few Bulgarian and Hungarian Danube River Wetlands-Reference-Cited by-同舟云学术

Trophic Status and Phytoplankton Limitation Conditions in a Few Bulgarian and Hungarian Danube River Wetlands

Published:2016-08-01 Issue:2 Volume:18 Page:19-28
ISSN:2344-3219
Container-title:Transylvanian Review of Systematical and Ecological Research
language:en
Short-container-title:

Author:

Kalchev Roumen¹,Berczik Árpád²,Beshkova Michaela¹,Dinka Mária²,Kalcheva Hristina¹,Kiss Anita²,Ágoston-Szabó Edit²

Affiliation:

1. Institute of Biodiversity and Ecosystem Research of Bulgarian Academy of Science, Tsar Osvoboditel Boulevard 1, Sofia, Bulgaria , BG-1000

2. Danube Research Institute of Hungarian Academy of Sciences, Centre for Ecological Research, Karolona Street 29, Budapest, Hungary , H-1113

Abstract

Abstract The phytoplankton limitation conditions in a few Bulgarian and Hungarian wetlands and in two more sampling sites, one for each Danube stretch, were investigated by means of trophic state index of Carlson (1977) for phytoplankton chlorophyll-a (CHL), Secchi disk depths (SD), total phosphorus (TP), and total nitrogen (TN) concentrations. Phytoplankton of both river sites was not limited by non-algal turbidity, nor was they phosphorus and nitrogen limited. In summer months the studied wetlands were predominantly nitrogen limited, while in spring and autumn limitation by non-algal turbidity prevailed.

Publisher

Walter de Gruyter GmbH

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