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Title

Under the canopy: Community-wide effects of invasive algae in Marine Protected Areas revealed by metabarcoding

AuthorsWangensteen, Owen S. ; Cebrian, Emma ; Palacín, Cruz ; Turon, Xavier
KeywordsMarine Protected Areas
Community characterization
Metabarcoding
Benthos
Invasive species
Biomonitoring
Issue Date2018
PublisherElsevier
CitationMarine Pollution Bulletin 127 : 54-66 (2018)
AbstractWe analysed with multigene (18S and COI) metabarcoding the effects of the proliferation of invasive seaweeds on rocky littoral communities in two Spanish Marine Protected Areas. The invasive algae studied were Caulerpa cylindracea, Lophocladia lallemandii and Asparagopsis armata. They are canopy-forming, landscape-dominant seaweeds, and we were interested in their effects on the underlying communities of meiobenthos and macrobenthos, separated in two size fractions through sieving. A new semiquantitative treatment of metabarcoding data is introduced. The results for both markers showed that the presence of the invasive seaweed had a significant effect on the understory communities for Lophocladia lallemandii and Asparagopsis armata but not for Caulerpa cylindracea. Likewise, changes in MOTU richness and diversity with invasion status varied in magnitude and direction depending on the alga considered. Our results showed that metabarcoding allows monitoring of the less conspicuous, but not least important, effects of the presence of dominant invasive seaweeds.
DescriptionEste artículo contiene 13 páginas, 9 figuras, 3 tablas.
Publisher version (URL)https://doi.org/10.1016/j.marpolbul.2017.11.033
URIhttp://hdl.handle.net/10261/158477
ISSN0025-326X
Appears in Collections:(CEAB) Artículos
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