Abo Bibliothek: Guest
Hydrobiological Journal
Stellvertretender Chefredakteur: V.I. Yurishinets (open in a new tab)
Exekutivsekretär der Redaktion: L.I. Kalinina (open in a new tab)

Erscheint 6 Ausgaben pro Jahr

ISSN Druckformat: 0018-8166

ISSN Online: 1943-5991

SJR: 0.221 SNIP: 0.469 CiteScore™:: 0.9 H-Index: 12

Indexed in

Influence of Water Temperature on the Content of Photosynthetic Pigments in Phytoplankton of Obolon Bay of the Kanev Reservoir

Volumen 52, Ausgabe 5, 2016, pp. 44-55
DOI: 10.1615/HydrobJ.v52.i5.50
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ABSTRAKT

Dynamics of the content of photosynthetic pigments, including chlorophyll a and carotenoids, in the unit volume of phytoplankton biomass in the surface layer of water of the littoral zone of Obolon Bay of the Kanev Reservoir were studied in summer 2014−2015. The main water bloom forming species of Cyanoprokaryota represented by Anabaena flos-aquae Bréb., Microcystis aeruginosa (Kütz.) Kütz., and Aphanizomenon flos-aquae (L.) Ralfs dominated in phytoplankton in terms of their biomass. The specific content of chlorophyll a in phytoplankton biomass (Chl. a/B) depended inversely on water temperature. The increase in the temperature of water from 21 to 31°C resulted in the decrease in Chl. a/B ratio by a factor of two. At extremely high temperatures of water, the total content of carotenoids in the unit volume of phytoplankton biomass also decreased. Relationship between chlorophyll a content and water temperature is described by linear function, whereas relationship between the total content of carotenoids and water temperature – by polynomial function.

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