期刊
ICES JOURNAL OF MARINE SCIENCE
卷 79, 期 7, 页码 2117-2125出版社
OXFORD UNIV PRESS
DOI: 10.1093/icesjms/fsac146
关键词
benthic invertebrates; biological traits analysis; climate change; ocean acidification; the North Sea
This study investigates the sensitivity of benthic taxa to ocean acidification using a traits-based approach. The results show that the majority of benthic species are sensitive to acidification, with sensitivity hotspots being more widely distributed in the study region. The opportunities and limitations of this approach are also discussed.
Ocean acidification poses a major threat to the structure and diversity of marine ecosystems. The marine seabed sustains important ecosystem functions, and so understanding the sensitivity to increased pCO(2) within benthic invertebrates is critical for informing future management strategies. Here, we explore a traits-based approach for estimating the sensitivity of benthic taxa to ocean acidification, using data from the western area of the North Sea. We selected 56 taxa across 11 taxonomic groups representative of the various habitats found in the region. Biological traits considered sensitive to elevated pCO(2) were identified from literature review, and the taxa were scored for each trait to produce a total relative sensitivity (TRS) index. We investigated differences in sensitivity between the taxa and across habitats and explored whether sensitivity was spatially aggregated. Our analyses indicated that benthic species are sensitive to acidification, with 51% of the taxa scoring in the top three TRS bands overall, and hot spots of sensitivity being more widely distributed across the region than corresponding cold spots (low sensitivity). The opportunities and limitations of the approach are discussed.
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