La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Contrasting Sensitivity of Marine Biota to UV-B Radiation Between Southern and Northern Hemispheres
Auteurs :	Susana Agusti, Auteur ; Moira Llabres, Auteur ; Beatriz Carreja, Auteur ; Miriam Fernandez, Auteur ; Carlos M. Duarte, Auteur
Type de document :	Article
Dans :	Estuaries and Coasts (38(4) JUL 2015)
Article en page(s) :	1126-1133
Résumé :	The asymmetries between hemispheres in stratospheric ozone concentration and atmospheric aerosols, leading to differences in incident ultraviolet B (UV-B) radiation, were examined in order to resolve the differential forcing of adaptation and selection of marine organisms under elevated UV-B radiation. This analysis was based on a meta-analysis including 2,060 experimental assessments of responses of marine organisms from the Northern and Southern Hemispheres to UV-B. Stratospheric ozone concentration in spring and summer decreased by 11.0 % in the Southern and 2.7 % in the Northern between 1970 and 2012, indicating higher UV-B incidence on the Southern Hemisphere. The ratio of studies on UV-B radiation impacts performed in the Southern against the Northern Hemisphere was 0.34 indicating higher research effort in the Northern Hemisphere. Responses of marine biota to UV-B indicated significantly more resistance of marine organisms tested from the Southern Hemisphere (P

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