Seawater carbonate chemistry and metabolic rate allometry in intertidal mussels across environmental gradients

Labra, Fabio A; San Martín, Valeska; Jahnsen-Guzman, Nicole; Fernandez, Carolina; Zapata, J; García-Huidobroro, M Roberto; Duarte, Cristian; García-Herrera, Claudio M; Vivanco, Juan F; Lardies, Marco A; Lagos, Nelson A

Seawater carbonate chemistry and metabolic rate allometry in intertidal mussels across environmental gradients

2022

We assess the role of direct and indirect effects of coastal environmental drivers (including the parameters of the carbonate system) on energy expenditure (MR) and body mass (M) of the intertidal mussel, Perumytilus purpuratus, across 10 populations distributed over 2800 km along the Southern Eastern Pacific (SEP) coast. We find biogeographic and local variation in carbonate system variables mediates the effects of latitude and temperature on metabolic rate allometry along the SEP coast. Also, the fitted Piecewise Structural Equation models (PSEM) have greater predictive ability (conditional R2 = 0.95) relative to the allometric scaling model (R2 = 0.35). The largest standardized coefficients for MR and M were determined by the influence of temperature and latitude, followed by pCO2, pH, total alkalinity, and salinity. Thus, physiological diversity of P. purpuratus along the SEP coast emerges as the result of direct and indirect effects of biogeographic and local environmental variables.

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Mots clés AGROVOC

alkalinity animalia benthos body length carbon carbon dioxide height latitude longitude mass mollusca ph respiration salinity site south pacific species temperature upwelling water width

Informations bibliographiques

Editeur

PANGAEA

D'autres materias

Carbonate ion; Carbonate system computation flag; Unique identification (uri); Dissolved; Ocean acidification international coordination centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Type; Calculated using seacarb after nisumaa et al. (2010); Biogeographical province; Perumytilus purpuratus; Calcite saturation state; Temperate; Metabolic rate of oxygen; Unique identification (semantic uri); Field observation; Bicarbonate ion; Total scale; Tropical; Buoyant mass; Inorganic; Category; Growth/morphology; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Benthic animals; Nbs scale; Total; Shell; Per animal mass; Oa-icc; Aragonite saturation state; Unique identification; Single species; Coast and continental shelf

Langue

anglais

Format

text/tab-separated-values, 9249 data points

Licence

CC-BY-4.0: Creative Commons Attribution 4.0 International, Access constraints: unrestricted, info:eu-repo/semantics/openAccess

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Dataset

Sur AGRIS depuis: 2024-11-28

Date de modification: 2024-11-28

Format: Dublin Core

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