TY - JOUR A1 - Langer, Julia A. F. A1 - Sharma, Rahul A1 - Schmidt, Susanne I. A1 - Bahrdt, Sebastian A1 - Horn, Henriette G. A1 - Algueró-Muñiz, María A1 - Nam, Bora A1 - Achterberg, Eric P. A1 - Riebesell, Ulf A1 - Boersma, Maarten A1 - Thines, Marco A1 - Schwenk, Klaus T1 - Community barcoding reveals little effect of ocean acidification on the composition of coastal plankton communities : evidence from a long-term mesocosm study in the Gullmar Fjord, Skagerrak T2 - PLoS one N2 - The acidification of the oceans could potentially alter marine plankton communities with consequences for ecosystem functioning. While several studies have investigated effects of ocean acidification on communities using traditional methods, few have used genetic analyses. Here, we use community barcoding to assess the impact of ocean acidification on the composition of a coastal plankton community in a large scale, in situ, long-term mesocosm experiment. High-throughput sequencing resulted in the identification of a wide range of planktonic taxa (Alveolata, Cryptophyta, Haptophyceae, Fungi, Metazoa, Hydrozoa, Rhizaria, Straminipila, Chlorophyta). Analyses based on predicted operational taxonomical units as well as taxonomical compositions revealed no differences between communities in high CO2 mesocosms (~ 760 μatm) and those exposed to present-day CO2 conditions. Observed shifts in the planktonic community composition were mainly related to seasonal changes in temperature and nutrients. Furthermore, based on our investigations, the elevated CO2 did not affect the intraspecific diversity of the most common mesozooplankter, the calanoid copepod Pseudocalanus acuspes. Nevertheless, accompanying studies found temporary effects attributed to a raise in CO2. Differences in taxa composition between the CO2 treatments could, however, only be observed in a specific period of the experiment. Based on our genetic investigations, no compositional long-term shifts of the plankton communities exposed to elevated CO2 conditions were observed. Thus, we conclude that the compositions of planktonic communities, especially those in coastal areas, remain rather unaffected by increased CO2. Y1 - 2017 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/44104 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-441041 SN - 1932-6203 N1 - Copyright: © 2017 Langer et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. VL - 12 IS - (4): e0175808 SP - 1 EP - 20 PB - PLoS CY - Lawrence, Kan. ER -