Seasonal variations of Fucus vesiculosus fertility under ocean acidification and warming in the western Baltic Sea ...

Ocean warming and acidification may substantially affect the reproduction of keystone species such as Fucus vesiculosus (Phaeophyceae). In four consecutive benthic mesocosm experiments, we compared the reproductive biology and quantified the temporal development of Baltic Sea Fucus fertility under t...

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Bibliographic Details
Main Authors: Graiff, Angelika, Dankworth, Marie, Wahl, Martin, Karsten, Ulf, Bartsch, Inka
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2017
Subjects:
Online Access:https://dx.doi.org/10.1594/pangaea.875646
https://doi.pangaea.de/10.1594/PANGAEA.875646
Description
Summary:Ocean warming and acidification may substantially affect the reproduction of keystone species such as Fucus vesiculosus (Phaeophyceae). In four consecutive benthic mesocosm experiments, we compared the reproductive biology and quantified the temporal development of Baltic Sea Fucus fertility under the single and combined impact of elevated seawater temperature and pCO2 (1100 ppm). In an additional experiment, we investigated the impact of temperature (0-25°C) on the maturation of North Sea F. vesiculosus receptacles. A marked seasonal reproductive cycle of F. vesiculosus became apparent in the course of 1 year. The first appearance of receptacles on vegetative apices and the further development of immature receptacles of F. vesiculosus in autumn were unaffected by warming or elevated pCO2. During winter, elevated pCO2 in both ambient and warmed temperatures increased the proportion of mature receptacles significantly. In spring, warming and, to a lesser extent, elevated pCO2 accelerated the maturation of ... : Supplement to: Graiff, Angelika; Dankworth, Marie; Wahl, Martin; Karsten, Ulf; Bartsch, Inka (2017): Seasonal variations of Fucus vesiculosus fertility under ocean acidification and warming in the western Baltic Sea. Botanica Marina, 60(3) ...