Biomass and nutrient dynamics of major green tides in Ireland: Implications for biomonitoring
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CitationRicardo Bermejo, Nessa Golden, Elena Schrofner, Kay Knöller, Owen Fenton, Ester Serrão, Liam Morrison, Biomass and nutrient dynamics of major green tides in Ireland: Implications for biomonitoring, Marine Pollution Bulletin, Volume 175, 2022, 113318, ISSN 0025-326X, https://doi.org/10.1016/j.marpolbul.2021.113318.
AbstractThe control of macroalgal bloom development is central for protecting estuarine ecosystems. The identification of the nutrients limiting the development of macroalgal blooms, and their most likely sources is crucial for management strategies. Three Irish estuaries (Argideen, Clonakilty and Tolka) affected by green tides were monitored from June 2016 to August 2017. During each sampling occasion, biomass abundances, tissue N and P contents, and δ15N were determined for tubular and laminar morphologies of Ulva. All estuaries showed maximum biomass during summer and minimum during winter. Tissue nutrient contents revealed P rather than N limitation. The δ15N during the peak bloom indicated agriculture as the most likely source of nitrogen in the Argideen and Clonakilty, and urban wastewaters in the Tolka. No differences in the δ15N, and the tissue nutrients content were observed between morphologies. The period between May and July is most suitable for bioassessment of green tides.
FunderEnvironmental Protection Agency, Ireland; Department of Economy, Knowledge, Business and University of the Regional Government of Andalusia; 2014-2020 ERDF Operational Programme
Grant Number2015-W-MS-20; 2018-W-MS-32; FEDER-UCA18-106875
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