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Biological and geological dynamics over four years on a high-temperature sulfide structure at the Juan de Fuca Ridge hydrothermal observatory ArchiMer
Sarrazin, Jozee; Robigou, V; Juniper, Sk; Delaney, Jr.
An extensive videoscopic study of a high-temperature sulfide structure on the Juan de Fuca Ridge (northeast Pacific) examined temporal variation in vent community distribution and Links between faunal and environmental changes. Video imagery was acquired during a total of 5 manned submersible and ROV (remotely-operated vehicle) dive programs between 1991 and 1995. The structure was systematically mapped for each year of the study and a series of analytical tools was developed to quantify changes in biological and geological features and observable flow patterns. Results show: (1) heterogeneous faunal distribution characterized by decimeter-scale patchiness and general absence of vertical gradients; (2) apparent Links between community distribution, and...
Tipo: Text Palavras-chave: Hydrothermal ecology; Community structure; Spatio-temporal distribution; Flow patterns; Biological succession; Disturbances; Juan de Fuca Ridge; Endeavour segment.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/00280/39117/37670.pdf
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