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Benthic foraminifera as bio-indicators of drill cutting disposal in tropical east Atlantic outer shelf environments ArchiMer
Mojtahid, Meryem; Jorissen, Frans; Durrieu, Josiane; Galgani, Francois; Howa, Helene; Redois, Fabrice; Camps, Roger.
We present a study of benthic foraminiferal. faunas from the outer continental shelf off Congo (tropical West Africa), with the aim to determine the impact of the discharge of oily drill cuttings on the sea floor environment, to judge the regenerating capacity of the benthic ecosystem, and to investigate the possibility to develop an environmental monitoring method for open marine continental shelf environments, based on benthic foraminifera. We studied the spatial distribution and microhabitats of living and dead foraminiferal faunas, sampled in April 2003, 4 years after the end of disposal activities, in the upper 3 cm of the sediment at 9 stations (about 180 m depth) offshore Congo, that were subject to various degrees of pollution by oily cuttings from...
Tipo: Text Palavras-chave: Oily cuttings; Opportunistic taxa; Drill mud; Bio indicator; Eutrophication; Outer shelf; Benthic foraminifera.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-2170.pdf
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