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Title: Functional traits of a native and an invasive clam of the genus Ruditapes occurring in sympatry in a coastal lagoon
Authors: Lopes, Marta Lobão
Rodrigues, Joana Patrício
Crespo, Daniel 
Dolbeth, Marina
Calado, Ricardo 
Lillebø, Ana Isabel 
Issue Date: 15-Nov-2018
Publisher: Springer Nature
Project: project SmartBioR - “Intelligent Enhancement of Endogenous Marine Biological Resources in a Changing Climate”, reference Center-01-0145-FEDER-000018, financed by the Regional Operational Programme of the Center (Centro2020), through the FEDER, under the new agreement partnership PT2020 
UID/AMB/50017 - POCI-01-0145- FEDER-007638 
Investigador FCT programme (IF/00919/2015). 
Serial title, monograph or event: Scientific Reports
Volume: 8
Issue: 1
Abstract: The main objective of this study was to evaluate the functional traits regarding bioturbation activity and its influence in the nutrient cycling of the native clam species Ruditapes decussatus and the invasive species Ruditapes philippinarum in Ria de Aveiro lagoon. Presently, these species live in sympatry and the impact of the invasive species was evaluated under controlled microcosmos setting, through combined/manipulated ratios of both species, including monospecific scenarios and a control without bivalves. Bioturbation intensity was measured by maximum, median and mean mix depth of particle redistribution, as well as by Surface Boundary Roughness (SBR), using time-lapse fluorescent sediment profile imaging (f-SPI) analysis, through the use of luminophores. Water nutrient concentrations (NH4-N, NOx-N and PO4-P) were also evaluated. This study showed that there were no significant differences in the maximum, median and mean mix depth of particle redistribution, SBR and water nutrient concentrations between the different ratios of clam species tested. Significant differences were only recorded between the control treatment (no bivalves) and those with bivalves. Thus, according to the present work, in a scenario of potential replacement of the native species by the invasive species, no significant differences are anticipated in short- and long-term regarding the tested functional traits.
ISSN: 2045-2322
DOI: 10.1038/s41598-018-34556-8
Rights: openAccess
Appears in Collections:FCTUC Ciências da Vida - Artigos em Revistas Internacionais
I&D CFE - Artigos em Revistas Internacionais

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