Journal Article

Trash or habitat? Fish assemblages on offshore oilfield seafloor debris in the Santa Barbara Channel, California

J. E. Caselle, M. S. Love, C. Fusaro and D. Schroeder

in ICES Journal of Marine Science

Published on behalf of ICES/CIEM

Volume 59, issue suppl, pages S258-S265
Published in print January 2002 | ISSN: 1054-3139
Published online January 2002 | e-ISSN: 1095-9289 | DOI: http://dx.doi.org/10.1006/jmsc.2002.1264
Trash or habitat? Fish assemblages on offshore oilfield seafloor debris in the Santa Barbara Channel, California

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We assessed the significance of offshore oilfield debris as fish habitat in central and southern California using video taken from a remotely operated vehicle to enumerate the fish assemblages and to measure debris characteristics. Among 33 species (belonging to 9 families) identified in four regions (from Pt. Conception to Los Angeles), rockfish (genus Sebastes) made up approximately 78%. Total fish abundance varied by region, with greater numbers present in the west than in the east. In comparing abundance of fish per debris item among regions, two rockfish species showed no spatial differences, one species was significantly more abundant in the western region and one had the highest abundance in the central region. Water depth, vertical profile, shelter availability, and item volume may be used to predict presence/absence or abundance of different species of rockfish, but none of these characteristics was consistently applicable to all species.Copyright 2002 International Council for the Exploration of the Sea. Published by Elsevier Science Ltd. All rights reserved.

Keywords: artificial reefs; habitat complexity; offshore oilfield debris; rockfish.

Journal Article.  0 words. 

Subjects: Environmental Science ; Marine and Estuarine Biology

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