Acute survivorship of the deep-sea coral Lophelia pertusa from the Gulf of Mexico under acidification,warming,and deoxygenation


Autoria(s): Lunden, Jay J; McNicholl, Conall G; Sears, Christopher R; Morrison, Cheryl L; Cordes, Erik E
Cobertura

LATITUDE: 29.110000 * LONGITUDE: -88.200000 * DATE/TIME START: 2010-11-01T00:00:00 * DATE/TIME END: 2010-11-30T00:00:00

Data(s)

25/06/2014

Resumo

Changing global climate due to anthropogenic emissions of CO2 are driving rapid changes in the physical and chemical environment of the oceans via warming, deoxygenation, and acidification. These changes may threaten the persistence of species and populations across a range of latitudes and depths, including species that support diverse biological communities that in turn provide ecological stability and support commercial interests. Worldwide, but particularly in the North Atlantic and deep Gulf of Mexico, Lophelia pertusa forms expansive reefs that support biological communities whose diversity rivals that of tropical coral reefs. In this study, L. pertusa colonies were collected from the Viosca Knoll region in the Gulf of Mexico (390 to 450 m depth), genotyped using microsatellite markers, and exposed to a series of treatments testing survivorship responses to acidification, warming, and deoxygenation. All coral nubbins survived the acidification scenarios tested, between pH of 7.67 and 7.90 and aragonite saturation states of 0.92 and 1.47. However, calcification generally declined with respect to pH, though a disparate response was evident where select individuals net calcified and others exhibited net dissolution near a saturation state of 1. Warming and deoxygenation both had negative effects on survivorship, with up to 100% mortality observed at temperatures above 14ºC and oxygen concentrations of approximately 1.5 ml·l-1. These results suggest that, over the short-term, climate change and OA may negatively impact L. pertusa in the Gulf of Mexico, though the potential for acclimation and the effects of genetic background should be considered in future research.

Formato

text/tab-separated-values, 912 data points

Identificador

https://doi.pangaea.de/10.1594/PANGAEA.847480

doi:10.1594/PANGAEA.847480

Idioma(s)

en

Publicador

PANGAEA

Relação

Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloise (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.6. https://cran.r-project.org/package=seacarb

Direitos

CC-BY: Creative Commons Attribution 3.0 Unported

Access constraints: unrestricted

Fonte

Supplement to: Lunden, Jay J; McNicholl, Conall G; Sears, Christopher R; Morrison, Cheryl L; Cordes, Erik E (2014): Acute survivorship of the deep-sea coral Lophelia pertusa from the Gulf of Mexico under acidification, warming, and deoxygenation. Frontiers in Marine Science, 1, doi:10.3389/fmars.2014.00078

Palavras-Chave #Alkalinity, total; Aragonite saturation state; Bicarbonate ion; Calcification rate; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Group; Individuals; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; Potentiometric; Potentiometric titration; Salinity; Species; Temperature, water; Treatment; Viosca_Knoll
Tipo

Dataset