Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/49572
Título: Functional responses of juvenile kelps, Laminaria ochroleuca and Saccorhiza polyschides, to increasing temperatures
Autores/as: Biskup, Szymon
Bertocci, Iacopo
Arenas, Francisco
Tuya, Fernando 
Clasificación UNESCO: 241705 Biología marina
Palabras clave: Acclimatization
Productivity
Respiration
Saccorhiza polyschides
Laminaria ochroleuca, et al.
Fecha de publicación: 2014
Editor/a: 0304-3770
Publicación seriada: Aquatic Botany 
Resumen: We tested the ability of juvenile sporophytes of two coexisting kelps native to Portugal, Laminaria ochroleuca and Saccorhiza polyschides, to adjust their photosynthesis and respiration to increasing sea water temperatures. These responses were measured for S. polyschides from both the subtidal and the intertidal habitat, and for L. ochroleuca from the intertidal habitat. L. ochroleuca showed a reduced ability to acclimatize to changing conditions, whereas S. polyschides demonstrated a larger physiological flexibility. These findings are connected with the life-history traits of these species. Additionally, optimum temperatures for the primary production of kelps were assessed, indicating higher values for inter- than subtidal S. polyschides. Significant physiological differences between inter- and subtidal S. polyschides were observed, based on metabolic rates of primary production and dark respiration. This study suggests that, under a warming climate scenario, responses can significantly vary for each species, and that L. ochroleuca is more susceptible to ocean warming than S. polyschides, due to larger acclimatization capacity of the latter.
URI: http://hdl.handle.net/10553/49572
ISSN: 0304-3770
DOI: 10.1016/j.aquabot.2013.10.003
Fuente: Aquatic Botany [ISSN 0304-3770], v. 113, p. 117-122
Colección:Artículos
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