English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/159971
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Response of the seagrass Halophila ovalis to altered light quality in a simulated dredge plume

AutorStrydom, Simone; McMahon, Kathryn M.; Lavery, Paul S.
Palabras claveLight quantity
Light quality
Fecha de publicación2017
CitaciónMarine Pollution Bulletin 121 : 323-330 (2017)
ResumenSeagrass meadows are globally threatened, largely through activities that reduce light quantity (photosynthetic photon flux density) such as dredging. However, these activities can simultaneously alter the spectral quality of light. Previous studies showed that Halophila ovalis seagrass productivity is reduced under monochromatic yellow/green light, wavelengths associated with dredge plumes, but it is unclear how they respond to spectra produced by real dredging projects. We simultaneously subjected adult H. ovalis plants to altered light quality and quantity simulating a real commercial dredging operation (15 mg L−1 TSS, 50 and 200 μmol photons m−2 s −1 ). There was a significant effect of reduced light quantity on physiological and morphological variables and a significant effect of light quality on the pigment antheraxanthin. The lack of effect of light quality on growth indicates that while seagrass are sensitive to changes in light quality, natural- and anthropogenicdriven changes may not always be sufficient to produce strong effects on H. ovalis.
DescripciónEste artículo contiene 8 páginas, 3 figuras, 3 tablas.
Versión del editorhttps://doi.org/10.1016/j.marpolbul.2017.05.060
Aparece en las colecciones: (CEAB) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.