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The effect of the Jessica grounding on Galápagos reef fish communities adjacent to the wreck site

Citation

Edgar, GJ and Marshall, PA and Mooney, P, The effect of the Jessica grounding on Galapagos reef fish communities adjacent to the wreck site, Marine Pollution Bulletin, 47, (7-8) pp. 296-302. ISSN 0025-326X (2003) [Refereed Article]

DOI: doi:10.1016/S0025-326X(03)00158-9

Abstract

The grounding of the oil tanker Jessica off San Cristóbal Island, Galápagos, resulted in generally elevated rather than depressed densities of fishes adjacent to the wreck site 15 weeks post spill. Species richness of fishes declined along transects out from the wreck; however, patterns were inconsistent for different depth strata, with the most clearly defined decline evident for the intermediate 5-7 m depth stratum. Fish species attracted to the immediate wreck site, most notably the surgeonfish Prionurus laticlavius, the damselfish Microspathodon dorsalis and the angelfish Holacanthus passer, were considered to be responding either to the heterogeneity provided by the wreck structure or elevated densities of macroalgae. The fish community at the wreck site lay outside the range of variation for other sites investigated in the region; however, contrary to predictions of grounding impacts, the fish assemblage immediately adjacent to the wreckage showed greater faunal similarity to reference sites than did fish assemblage at 60-90 m distance from the grounding. © 2003 Elsevier Science Ltd. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and Estuarine Ecology (incl. Marine Ichthyology)
Objective Division:Transport
Objective Group:Environmentally Sustainable Transport
Objective Field:Environmentally Sustainable Transport not elsewhere classified
Author:Edgar, GJ (Professor Graham Edgar)
ID Code:27164
Year Published:2003
Web of Science® Times Cited:4
Deposited By:Zoology
Deposited On:2003-08-01
Last Modified:2011-11-21
Downloads:0

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