Temperature and feeding frequency impact the survival, growth, and metamorphosis success of Solea solea larvae

Type Article
Date 2023-03
Language English
Author(s) Sardi Adriana E.1, Bégout Marie-LaureORCID2, Lalles Anne-Laure1, Cousin XavierORCID3, Budzinski Hélène1
Affiliation(s) 1 : CNRS, EPOC, UMR 5805, University of Bordeaux, Talence, France
2 : MARBEC, CNRS, Ifremer, IRD, INRAE, Univ Montpellier, Palavas-Les-Flots, France
3 : MARBEC, CNRS, Ifremer, IRD, INRAE, Univ Montpellier, Palavas-Les-Flots, France
Source Plos One (1932-6203) (Public Library of Science (PLoS)), 2023-03 , Vol. 18 , N. 3 , P. e0281193. (21p.)
DOI 10.1371/journal.pone.0281193
WOS© Times Cited 1

Human-induced climate change impacts the oceans, increasing their temperature, changing their circulation and chemical properties, and affecting marine ecosystems. Like most marine species, sole has a biphasic life cycle, where one planktonic larval stage and juvenile/adult stages occur in a different ecological niche. The year-class strength, usually quantified by the end of the larvae stage, is crucial for explaining the species’ recruitment. We implemented an experimental system for rearing larvae under laboratory conditions and experimentally investigated the effects of temperature and feeding frequencies on survival, development (growth), and metamorphosis success of S. solea larvae. Specific questions addressed in this work include: what are the effects of feeding regimes on larvae development? How does temperature impact larvae development? Our results highlight that survival depends on the first feeding, that the onset of metamorphosis varies according to rearing temperature and that poorly fed larvae take significantly longer to start (if they do) metamorphosing. Moreover, larvae reared at the higher temperature (a +4°C scenario) showed a higher incidence in metamorphosis defects. We discuss the implications of our results in an ecological context, notably in terms of recruitment and settlement. Understanding the processes that regulate the abundance of wild populations is of primary importance, especially if these populations are living resources exploited by humans.

Full Text
File Pages Size Access
Publisher's official version 21 1 MB Open access
S1 File. 2 MB Open access
S1 Data. 274 KB Open access
Top of the page