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Ervilia castanea (Mollusca, Bivalvia) populations adversely affected at CO2 seeps in the North Atlantic

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Ervilia castanea (Mollusca, Bivalvia) populations adversely affected at CO2 seeps in the North Atlantic

DOI: 10.1016/j.scitotenv.2020.142044

Type: Publication

Year: 2020

Citations: 12

AZORES DEEP-SEA RESEARCH
Publication Open access August 2020

Ervilia castanea (Mollusca, Bivalvia) populations adversely affected at CO2 seeps in the North Atlantic

The Science of The Total Environment

10.1016/j.scitotenv.2020.142044
Open DOI
Total authors
16
Involved team members
1
Citations
12
References
136

Citations by year

7 years
2026
1
2025
2
2024
3
2023
1
2022
2
2021
2
2020
1

Related to this work

iAtlantic

Abstract

Sites with naturally high CO2 conditions provide unique opportunities to forecast the vulnerability of coastal ecosystems to ocean acidification, by studying the biological responses and potential adaptations to this increased environmental variability. In this study, we investigated the bivalve Ervilia castanea in coastal sandy sediments at reference sites and at volcanic CO2 seeps off the Azores, where the pH of bottom waters ranged from average oceanic levels of 8.2, along gradients, down to 6.81, in carbonated seawater at the seeps. The bivalve population structure changed markedly at the seeps. Large individuals became less abundant as seawater CO2 levels rose and were completely absent from the most acidified sites. In contrast, small bivalves were most abundant at the CO2 seeps. We propose that larvae can settle and initially live in high abundances under elevated CO2 levels, but that high rates of post-settlement dispersal and/or mortality occur. Ervilia castanea were susceptible to elevated CO2 levels and these effects were consistently associated with lower food supplies. This raises concerns about the effects of ocean acidification on the brood stock of this species and other bivalve molluscs with similar life history traits.

Authors

1 involved team member
M
Marta Martins
0000-0002-3440-0876

Centro Interdisciplinar de Investigação Marinha e Ambiental – Universidade do Porto, Porto, Portugal

+2 more

G
Gustavo M. Martins
0000-0001-5051-2221

cE3c – Universidade dos Açores, Ponta Delgada, Portugal

+1 more

J
Joana Barcelos E Ramos
0000-0002-0879-2298

IITAA – University of the Azores, Angra do Heroísmo, Portugal

F
Fátima Viveiros
0000-0002-0442-7955

Research Institute for Volcanology and Risk Assessment, University of the Azores, Ponta Delgada, Portugal

+2 more

R
Ruben P. Couto
0000-0001-5223-4122

cE3c – Universidade dos Açores, Ponta Delgada, Portugal

+1 more

H
Hugo Parra
0000-0001-9464-1201

IMAR - Instituto do Mar & OKEANOS Research Unit, Universidade dos Açores, 9901-862 Horta, Portugal

J
João Monteiro
0000-0002-3401-6495

MARE – Marine and Environmental Sciences Centre, Madeira, Portugal

+1 more

F
Francesca Gallo
0000-0003-4938-647X

IITAA – University of the Azores, Angra do Heroísmo, Portugal

+1 more

C
Catarina Silva
0000-0002-1196-306X

Research Institute for Volcanology and Risk Assessment, University of the Azores, Ponta Delgada, Portugal

+2 more

A
Alexandra Teodósio
0000-0002-0939-9885

Centro de Ciências do Mar do Algarve, Universidade do Algarve, Faro, Portugal

J
Jason M. Hall-Spencer
0000-0002-6915-2518

School of Biological and Marine Sciences, University of Plymouth, United Kingdom

+2 more

F
Francisco Leitão
0000-0003-4983-9782

Centro de Ciências do Mar do Algarve, Universidade do Algarve, Faro, Portugal

P
Pedro Range
0000-0002-9269-2416

Environmental Science Center, Qatar University, P.O. Box 2713, Doha, Qatar

+1 more

Record details

Type
article
Language
EN
Volume
754
Pages
142044–142044
ISSN
0048-9697

Keywords

Ocean acidification Bivalvia Mollusca Biology Biological dispersal Ecology Ecosystem Population Oceanography Seawater Geology Sociology Demography

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Oceano Azul
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FCT
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Governo dos Açores
Portugal 2020
Rolex
RP
RP Ciência
União Europeia
Governo dos Açores
Oceano Azul
Eurofleets
FCT
FCT Investigador
Governo dos Açores
Portugal 2020
Rolex
RP
RP Ciência
União Europeia

Location

Institute of Marine Sciences — Okeanos, University of the Azores

Departamento de Oceanografia e Pescas — Universidade dos Açores

Rua Prof. Doutor Frederico Machado, No. 4
9901-862 Horta, Portugal

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