Journal Article

Fish production of a temperate artificial reef based on the density of embiotocids (Teleostei: Perciformes)

Daniel J. Pondella, John S. Stephens and Matthew T. Craig

in ICES Journal of Marine Science

Published on behalf of ICES/CIEM

Volume 59, issue suppl, pages S88-S93
Published in print January 2002 | ISSN: 1054-3139
Published online January 2002 | e-ISSN: 1095-9289 | DOI: http://dx.doi.org/10.1006/jmsc.2002.1219
Fish production of a temperate artificial reef based on the density of embiotocids (Teleostei: Perciformes)

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The abundance of two embiotocids (Embiotoca jacksoni and Rhacochilus vacca) was surveyed continually from 1974 to 1998 on the breakwaters comprising King Harbor in Redondo Beach, California, and a nearby natural rocky-reef as a reference. Embiotocids provide an interesting model for reef-fish production because they are viviparous and their entire ontogeny can be observed on the reefs. We deduce that the two reef populations of both species were stable at their carrying capacity. This carrying capacity was greater in King Harbor throughout the study. We also report a linear decline in survival of juveniles of both species over the 25-year period. Overall regional processes were similar on the two reefs, yet temporal differences suggested that they were acting independently. The King Harbor reefs produced greater biomass for both species, which represents one factor explaining the higher density of kelp bass (Paralabrax clathratus), an important predator.Copyright 2002 International Council for the Exploration of the Sea. Published by Elsevier Science Ltd. All rights reserved.

Keywords: artificial reefs; Embiotoca jacksoni; Embiotocidae; fish production; Paralabrax clathratus; productivity; Rhacochilus vacca.

Journal Article.  0 words. 

Subjects: Environmental Science ; Marine and Estuarine Biology

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