European sea bass, Dicentrarchus labrax, in a changing ocean

DOI

Ocean acidification, caused by rising concentrations of carbon dioxide (CO2), is widely considered to be a major global threat to marine ecosystems. To investigate the potential effects of ocean acidification on the early life stages of a commercially important fish species, European sea bass (Dicentrarchus labrax), 12 000 larvae were incubated from hatch through metamorphosis under a matrix of two temperatures (17 and 19 °C) and two seawater pCO2 levels (ambient and 1,000 µatm) and sampled regularly for 42 days. Calculated daily mortality was significantly affected by both temperature and pCO2, with both increased temperature and elevated pCO2 associated with lower daily mortality and a significant interaction between these two factors. There was no significant pCO2 effect noted on larval morphology during this period but larvae raised at 19 °C possessed significantly larger eyes and lower carbon:nitrogen ratios at the end of the study compared to those raised under 17 °C. Similarly, when the incubation was continued to post-metamorphic (juvenile) animals (day 67-69), fish raised under a combination of 19 °C and 1000 µatm pCO2 were significantly heavier. However, juvenile D. labrax raised under this combination of 19 °C and 1000 µatm pCO2 also exhibited lower aerobic scopes than those incubated at 19 °C and ambient pCO2. Most studies investigating the effects of near-future oceanic conditions on the early life stages of marine fish have used incubations of relatively short durations and suggested that these animals are resilient to ocean acidification. Whilst the increased survival and growth observed in this study supports this view, we conclude that more work is required to investigate whether the differences in juvenile physiology observed in this study manifest as negative impacts in adult fish.

In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne et al, 2014) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation is 2014-09-03.

Identifier
DOI https://doi.org/10.1594/PANGAEA.835574
Related Identifier https://doi.org/10.5194/bg-11-2519-2014
Related Identifier https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/f2d440ff-1a79-53ab-e044-000b5de50f38/
Related Identifier https://www.bodc.ac.uk/data/documents/nodb/226224/
Related Identifier https://cran.r-project.org/package=seacarb
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.835574
Provenance
Creator Pope, E C ORCID logo; Ellis, Robert P ORCID logo; Scolamacchia, M ORCID logo; Scolding, J W S; Keay, A; Chingombe, P; Shields, R J; Wilcox, R; Speirs, Douglas C ORCID logo; Wilson, R W; Lewis, Ceri N ORCID logo; Flynn, Kevin J ORCID logo
Publisher PANGAEA
Contributor Yang, Yan
Publication Year 2014
Funding Reference Natural Environment Research Council https://doi.org/10.13039/501100000270 Crossref Funder ID NE/H017305/1 https://gtr.ukri.org/projects?ref=NE%2FH017305%2F1 Impacts of ocean acidification on key benthic ecosystems, communities, habitats, species and life cycles
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 26641 data points
Discipline Earth System Research
Temporal Coverage Begin 2012-11-22T00:00:00Z
Temporal Coverage End 2013-02-05T00:00:00Z