Publications des scientifiques de l'IRD

Jauffrais T., Brisset M., Lagourgue L., Payri Claude, Gobin S., Le Gendre R., Van Wynsberge S. (2022). Seasonal changes in the photophysiology of Ulva batuffolosa in a coastal barrier reef. Aquatic Botany, 179, p. 103515 [9 p.]. ISSN 0304-3770.

Titre du document
Seasonal changes in the photophysiology of Ulva batuffolosa in a coastal barrier reef
Année de publication
2022
Type de document
Article référencé dans le Web of Science WOS:000783882600006
Auteurs
Jauffrais T., Brisset M., Lagourgue L., Payri Claude, Gobin S., Le Gendre R., Van Wynsberge S.
Source
Aquatic Botany, 2022, 179, p. 103515 [9 p.] ISSN 0304-3770
To assess the photophysiological capacity of the recently described Ulva batuffolosa to form blooms in coral reefs, we monitored its biomass and photophysiological capacity with pulse amplitude modulated (PAM) fluorometry over a year period on a coastal barrier reef in New Caledonia, along with temperature and light. Effective and maximum quantum efficiencies of the photosystem II measured on this Ulva species indicated that the algae was in a "good health " all over the year with high quantum efficiencies under either light (Fq'/Fm') or dark incubated conditions and (Fv/Fm). Photo-acclimation and-regulation status used by this Ulva sp. were driven by seasons (i. e., light and temperature) in the lagoon. Although photo-inhibition was an evidence during the warm period, U. batuffolosa was overall well adapted to tolerate the range of irradiance and temperature that characterized the lagoon over the year, which suggests that photosynthesis is not an impediment to green tides by this species.
Plan de classement
Limnologie biologique / Océanographie biologique [034]
Description Géographique
NOUVELLE CALEDONIE ; PACIFIQUE
Localisation
Fonds IRD [F B010084655]
Identifiant IRD
fdi:010084655
Contact
  • Coordonnées :
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    93140 Bondy Cedex
    France
    Horizon Pleins textes
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