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Contrasting patterns in habitat selection and recruitment of temperate reef fishes among natural and artificial reefs

Komyakova, V and Swearer, SE 2018 , 'Contrasting patterns in habitat selection and recruitment of temperate reef fishes among natural and artificial reefs' , Marine Environmental Research, vol. 143 , pp. 71-81 , doi:

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Artificial reefs, a common management tool for stock enhancement of recreational fisheries and marine habitat restoration, have been deployed all over the world. However, little is known about the attractiveness of artificial compared to natural reefs to reef fishes. Here we investigated the habitat preferences of three reef fish species: Trachinops caudimaculatus, Vincentia conspersa and Trinorfoklia clarkei through the observation of recruitment patterns to three study habitats: Reef Ball reefs, custom-designed artificial reefs, and natural reefs in Port Phillip Bay, Victoria, Australia. Additionally, we examined habitat preferences of new recruits of T. caudimaculatus and V. conspersa using laboratory-based habitat choice experiments. In general, T. caudimaculatus recruitment was at least twice as high on natural reefs compared to both artificial reefs, whereas V. conspersa recruitment was almost three times greater on Reef Ball reefs compared to the other two habitats. T. clarkei recruited in equal numbers across all habitats. However, in the laboratory experiments T. caudimaculatus recruits selected the Reef Ball reef almost three times as often as the other two habitats, while V. conspersa exhibited no habitat preference. Little is known about the growth, condition, survival or reproduction of individuals that occupy artificial reefs. In areas where habitat is not limiting, the higher preference or equal attractiveness of some artificial habitats may negatively influence fish populations, if larvae are redirected to poorer quality artificial reef habitat, that lead to lower fitness advantages.

Item Type: Article
Authors/Creators:Komyakova, V and Swearer, SE
Keywords: artificial habitat, reef design, habitat attractiveness, choice experiments, ecological trap, marine ecology, conservation
Journal or Publication Title: Marine Environmental Research
Publisher: Elsevier Sci Ltd
ISSN: 0141-1136
DOI / ID Number:
Copyright Information:

© 2018 Elsevier Ltd.

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