Long-term response of coastal macrofauna communities to de-eutrophication and sea level rise mediated habitat changes (1980s versus 2018)

نویسندگان

چکیده

Since the last decades, previous long-term Wadden Sea studies revealed significant changes in abundance, biomass and spatial distribution of characteristic macrofauna communities response to environmental anthropogenic stressors. In this study, we performed statistical community analysis for East-Frisian (EFWS, southern North Sea) on two reference datasets across a period with severe climatic (1980s-2018). Therefore, historical data from Quantitative Sensitivity Mapping (1980s, SENSI 1) were reanalyzed compared Synoptic Intertidal Benthic Survey (SIBES/SENSI 3) collected 2018. Our results quantitative between 1980s 2018, most likely de-eutrophication sea level rise mediated habitat changes. 1980s, total number taxa remained relatively stable (1980s: 90, 2018: 81), but abundance decreased by ca. -31% -45%, particularly eastern regions study site probably due processes. Thereby, mean abundances/m 2 ? -80% (1980s-2018) EFWS several dominant species decreased: e.g. gastropod Peringia ulvae , polychaete Lanice conchilega bivalve Mya arenaria . contrast, abundance/m one increased +80% (1980s-2018): invasive Ensis leei The [g/m ] three P. L. amphipod Corophium volutator +75% Arenicola marina western part EFWS, not only higher abundances A. marina, also found caused i.a. decreasing mud contents sand accretion tidal flats. At level, Oligochaeta/Heteromastus 2018 vicinity increasing mussel/oyster beds.

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ژورنال

عنوان ژورنال: Frontiers in Marine Science

سال: 2023

ISSN: ['2296-7745']

DOI: https://doi.org/10.3389/fmars.2022.963325