Seawater carbonate chemistry and larval swimming speed, spawning and settlement of a robust fouling bryozoan, Bugula neritina

DOI

Few studies to date have investigated the effects of ocean acidification on non-reef forming marine invertebrates with non-feeding larvae. Here, we exposed adults of the bryozoan Bugula neritina and their larvae to lowered pH. We monitored spawning, larval swimming, settlement, and post-settlement individual sizes at two pHs (7.9 vs. 7.6) and settlement dynamics alone over a broader pH range (8.0 down to 6.5). Our results show that spawning was not affected by adult exposure (48 h at pH 7.6), larvae swam 32% faster and the newly-settled individuals grew significantly larger (5%) at pH 7.6 than in the control. Although larvae required more time to settle when pH was lowered, reduced pH was not lethal, even down to pH 6.5. Overall, this fouling species appeared to be robust to acidification, and yet, indirect effects such as prolonging the pelagic larval duration could increase predation risk, and might negatively impact population dynamics.

Supplement to: Pecquet, Antoine; Dorey, Narimane; Chan, Kit Yu Karen (2017): Ocean acidification increases larval swimming speed and has limited effects on spawning and settlement of a robust fouling bryozoan, Bugula neritina. Marine Pollution Bulletin, 124(2), 903-910

Identifier
DOI https://doi.org/10.1594/PANGAEA.901178
Related Identifier https://doi.org/10.1016/j.marpolbul.2017.02.057
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.901178
Provenance
Creator Pecquet, Antoine; Dorey, Narimane ORCID logo; Chan, Kit Yu Karen ORCID logo
Publisher PANGAEA
Publication Year 2017
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Language English
Resource Type Supplementary Publication Series of Datasets; Collection
Format application/zip
Size 4 datasets
Discipline Earth System Research
Spatial Coverage (114.268 LON, 22.357 LAT)
Temporal Coverage Begin 2016-02-01T00:00:00Z
Temporal Coverage End 2016-04-30T00:00:00Z