Seawater carbonate chemistry and calcification of two mediterranean cold-water coral species in a laboratory experiment


Autoria(s): Movilla, Juancho; Gori, Andrea; Calvo, Eva; Orejas, Covadonga; Lopez-Sanz, Angel; Domínguez-Carrió, Carlos; Grinyó, Jordi; Pelejero, Carles
Data(s)

05/06/2014

Resumo

Deep-water ecosystems are characterized by relatively low carbonate concentration values and, due to ocean acidification (OA), these habitats might be among the first to be exposed to undersaturated conditions in the forthcoming years. However, until now, very few studies have been conducted to test how cold-water coral (CWC) species react to such changes in the seawater chemistry. The present work aims to investigate the mid-term effect of decreased pH on calcification of the two branching CWC species most widely distributed in the Mediterranean, Lophelia pertusa and Madrepora oculata. No significant effects were observed in the skeletal growth rate, microdensity and porosity of both species after 6 months of exposure. However, while the calcification rate of M. oculata was similar for all colony fragments, a heterogeneous skeletal growth pattern was observed in L. pertusa, the younger nubbins showing higher growth rates than the older ones. A higher energy demand is expected in these young, fast-growing fragments and, therefore, a reduction in calcification might be noticed earlier during long-term exposure to acidified conditions.

Formato

text/tab-separated-values, 8700 data points

Identificador

https://doi.pangaea.de/10.1594/PANGAEA.833187

doi:10.1594/PANGAEA.833187

Idioma(s)

en

Publicador

PANGAEA

Relação

Lavigne, Héloise; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0. https://cran.r-project.org/package=seacarb

Direitos

CC-BY: Creative Commons Attribution 3.0 Unported

Access constraints: unrestricted

Fonte

Supplement to: Movilla, Juancho; Gori, Andrea; Calvo, Eva; Orejas, Covadonga; Lopez-Sanz, Angel; Domínguez-Carrió, Carlos; Grinyó, Jordi; Pelejero, Carles (2014): Resistance of Two Mediterranean Cold-Water Coral Species to Low-pH Conditions. Water, 6(1), 59-67, doi:10.3390/w6010059

Palavras-Chave #Alkalinity, total; Alkalinity, total, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; calcification; Calcification rate of calcium carbonate; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2calc; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; corals; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Identification; Incubation duration; laboratory; Mass; Mediterranean; morphology; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard deviation; Potentiometric titration; Salinity; Salinity, standard deviation; Species; Spectrophotometric; Temperature, water; Temperature, water, standard deviation; Treatment
Tipo

Dataset