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Cryptophyte bloom in a Mediterranean estuary: High abundance of Plagioselmis cf. prolonga in the Krka River estuary (eastern Adriatic Sea)

Šupraha, Luka; Bosak, Sunčica; Ljubešić, Zrinka; Mihanović, Hrvoje; Olujić, Goran; Mikac, Iva; Viličić, Damir (2014) Cryptophyte bloom in a Mediterranean estuary: High abundance of Plagioselmis cf. prolonga in the Krka River estuary (eastern Adriatic Sea). Scientia Marina, 78 (3). pp. 329-338. ISSN 0214-8358

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Abstract

During the June 2010 survey of phytoplankton and physicochemical parameters in the Krka River estuary (eastern Adriatic Sea), a cryptophyte bloom was observed. High abundance of cryptophytes (maximum 7.9×106 cells l–1) and high concentrations of the class-specific biomarker pigment alloxanthine (maximum 2312 ng l–1) were detected in the surface layer and at the halocline in the lower reach of the estuary. Taxonomical analysis revealed that the blooming species was Plagioselmis cf. prolonga. Analysis of the environmental parameters in the estuary suggested that the bloom was supported by the slower river flow as well as the increased orthophosphate and ammonium concentrations. The first record of a cryptophyte bloom in the Krka River estuary may indicate that large-scale changes are taking place in the phytoplankton community. Such changes could have a major impact on the natural ecosystem dynamics and the mariculture production in the area.

Item Type: Article
Uncontrolled Keywords: estuarine ecosystem; phytoplankton bloom; cryptophyte ; chemotaxonomy; Mediterranean Sea; Krka River estuary
Subjects: NATURAL SCIENCES > Biology
Divisions: Division for Marine and Enviromental Research
Projects:
Project titleProject leaderProject codeProject type
Struktura i razvoj zajednica mikroalga u trofičkom gradijentuDamir Viličić119-1191189-1228MZOS
Depositing User: Iva Mikac
Date Deposited: 21 Jul 2016 09:49
Last Modified: 21 Jul 2016 09:49
URI: http://fulir.irb.hr/id/eprint/2977
DOI: 10.3989/scimar.03998.28C

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