Seawater carbonate chemistry and energy metabolism and survival of the juvenile recruits of the American lobster (Homarus americanus)


The transition from the last pelagic larval stage to the first benthic juvenile stage in the complex life cycle of marine invertebrates, such as the American lobster Homarus americanus, a species of high economic importance, represents a delicate phase in these species development. Under future elevated pCO2 conditions, ocean acidification and other elevated pCO2 events can negatively affect crustaceans. This said their effects on the benthic settlement phase are virtually unknown. This study aimed to identify the effects of elevated seawater pCO2 on stage V American lobsters exposed to seven pCO2 levels. The survival, development time, metabolic and feeding rates, carapace composition, and mitochondrial function were investigated. Results suggested an increase in mortality, slower development and a reduction in aerobic capacity with increasing pCO2. Our study points to potential reduction in juvenile recruitment success as seawater pCO2 increases, thus foreshadowing important socio-economic repercussions for the lobster fisheries and industry.

In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2019) 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 by seacarb is 2020-07-07.

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Metadata Access
Creator Menu-Courey, Kayla; Noisette, Fanny ORCID logo; Piedalue, Sarah; Daoud, Dounia; Blair, Tammy; Blier, Pierre; Azetsu-Scott, Kumiko; Calosi, Piero ORCID logo
Publisher PANGAEA
Contributor Yang, Yan
Publication Year 2019
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 35658 data points
Discipline Earth System Research
Spatial Coverage (-64.714 LON, 47.780 LAT)
Temporal Coverage Begin 2016-05-01T00:00:00Z
Temporal Coverage End 2016-05-31T00:00:00Z