An Invasive Mussel (Arcuatula senhousia, Benson 1842) Interacts with Resident Biota in Controlling Benthic Ecosystem Functioning

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Bernard , G , Kauppi , L , Lavesque , N , Ciutat , A , Gremare , A , Masse , C & Maire , O 2020 , ' An Invasive Mussel (Arcuatula senhousia, Benson 1842) Interacts with Resident Biota in Controlling Benthic Ecosystem Functioning ' , Journal of marine science and engineering , vol. 8 , no. 12 , 963 . https://doi.org/10.3390/jmse8120963

Title: An Invasive Mussel (Arcuatula senhousia, Benson 1842) Interacts with Resident Biota in Controlling Benthic Ecosystem Functioning
Author: Bernard, Guillaume; Kauppi, Laura; Lavesque, Nicolas; Ciutat, Aurelie; Gremare, Antoine; Masse, Cecile; Maire, Olivier
Contributor organization: Ecosystems and Environment Research Programme
Biological stations
Marine Ecosystems Research Group
Tvärminne Benthic Ecology Team
Tvärminne Zoological Station
Date: 2020-12
Language: eng
Number of pages: 18
Belongs to series: Journal of marine science and engineering
ISSN: 2077-1312
DOI: https://doi.org/10.3390/jmse8120963
URI: http://hdl.handle.net/10138/324531
Abstract: The invasive mussel Arcuatula senhousia has successfully colonized shallow soft sediments worldwide. This filter feeding mussel modifies sedimentary habitats while forming dense populations and efficiently contributes to nutrient cycling. In the present study, the density of A. senhousia was manipulated in intact sediment cores taken within an intertidal Zostera noltei seagrass meadow in Arcachon Bay (French Atlantic coast), where the species currently occurs at levels corresponding to an early invasion stage. It aimed at testing the effects of a future invasion on (1) bioturbation (bioirrigation and sediment mixing) as well as on (2) total benthic solute fluxes across the sediment-water interface. Results showed that increasing densities of A. senhousia clearly enhanced phosphate and ammonium effluxes, but conversely did not significantly affect community bioturbation rates, highlighting the ability of A. senhousia to control nutrient cycling through strong excretion rates with potential important consequences for nutrient cycling and benthic-pelagic coupling at a broader scale. However, it appears that the variability in the different measured solute fluxes were underpinned by different interactions between the manipulated density of A. senhousia and several faunal and/or environmental drivers, therefore underlining the complexity of anticipating the effects of an invasion process on ecosystem functioning within a realistic context.
Subject: Arcuatula senhousia
invasive species
ecosystem functioning
benthic fluxes
context dependency
nutrient cycling
seagrass meadow
Arcachon Bay
bioturbation
ASIAN DATE MUSSEL
MOLLUSCA-BIVALVIA MYTILIDAE
SETO INLAND SEA
MUSCULISTA-SENHOUSIA
GRACILARIA-VERMICULOPHYLLA
NUTRIENT FLUXES
EXOTIC MUSSEL
SEDIMENT REWORKING
SEASONAL DYNAMICS
ORGANIC-MATTER
1181 Ecology, evolutionary biology
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


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