Publications des scientifiques de l'IRD

Adjeroud Mehdi, Gilbert A., Facon M., Foglia M., Moreton B., Heintz T. (2016). Localised and limited impact of a dredging operation on coral cover in the northwestern lagoon of New Caledonia. Marine Pollution Bulletin, 105 (1), p. 208-214. ISSN 0025-326X.

Titre du document
Localised and limited impact of a dredging operation on coral cover in the northwestern lagoon of New Caledonia
Année de publication
2016
Type de document
Article référencé dans le Web of Science WOS:000375816000038
Auteurs
Adjeroud Mehdi, Gilbert A., Facon M., Foglia M., Moreton B., Heintz T.
Source
Marine Pollution Bulletin, 2016, 105 (1), p. 208-214 ISSN 0025-326X
We report here an interannual survey (2006-2012) of coral cover in the northwestern lagoon of New Caledonia, to assess the impact of an important dredging operation (August 2008-February 2010) associated with the construction of the largest nickel mining site in the Pacific. A BACI (Before-After Control-Impact) analysis failed to detect any significant interaction between period (before, during, and after dredging) and the category of the stations (impact vs. control). Among the 31 stations surveyed, only seven showed decreasing coral cover during the study period, mainly due to a decline in Acroporidae. However, the relationship between the dredging and this decrease was highly plausible only for one station, situated 0.9 km from the dredging site. High hydrodynamism in the study area, the abundance of resistant corals and efficient protective measures during the dredging operation might explain these localised and limited impacts.
Plan de classement
Pollution [038]
Description Géographique
NOUVELLE CALEDONIE ; PACIFIQUE
Localisation
Fonds IRD [F B010066889]
Identifiant IRD
fdi:010066889
Contact