Morpho-functional classifications of phytoplankton assemblages of two deep karstic lakes

Žutinić Petar, Gligora Udovič Marija, Kralj Borojević Koraljka, Plenković Moraj Anđelka, Padisák Judit

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Morpho-functional classifications of phytoplankton are increasingly used in ecological studies of different aquatic ecosystems. The aim was to compare three different classifications: (a) functional groups (FG); (b) morpho-functional groups (MFG); and (c) morphologically based functional groups (MBFG), and to detect how well can the biomass of phytoplankton groups based on different classifications be explained by environmental conditions of two different karstic lakes in the National Park Plitvice Lakes. Phytoplankton biomass in Lake Kozjak was lower than in Lake Prošće (total avg. 1.13 and 2.59 mg l−1, respectively). Several diatoms (Cyclotella spp., Discostellastelligera, Synedra sp., Ulnariaulna var. acus) with Dinobryondivergens were dominant in Kozjak, while Prošće was characterized by Dinobryonsociale, D. divergens, Cryptomonas sp., Stephanodiscus sp. and Fragilariacrotonensis. The best results in describing the phytoplankton succession were obtained using MBFG approach although it is less sensitive in describing variability of individual descriptive algal groups in this environment than FG and MFG. Nonetheless, because of distinct differences among dominant phytoplankton groups in these systems, MBFG classification was shown to be applicable, as supported by statistical analyses. FG and MFG classifications showed a high level of similarity, thus proving to be applicable to deep karstic lakes.

Original languageEnglish
Pages (from-to)147-166
Number of pages20
JournalHydrobiologia
Volume740
Issue number1
DOIs
Publication statusPublished - Sep 30 2014

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Keywords

  • Deep karstic lakes
  • Morpho-functional classifications
  • Phytoplankton assemblages

ASJC Scopus subject areas

  • Aquatic Science

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