A Resident Fish Guild as a Higher Trophic Level Indicator of Oyster Reef Restoration Success

Dakota M. Lewis, Katie E. Durham, Linda J. Walters and Geoffrey S. Cook
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Dakota M. Lewis: Department of Biology, University of Central Florida, Orlando, FL 32816, USA
Katie E. Durham: Department of Biology, University of Central Florida, Orlando, FL 32816, USA
Linda J. Walters: Department of Biology, University of Central Florida, Orlando, FL 32816, USA
Geoffrey S. Cook: Department of Biology, University of Central Florida, Orlando, FL 32816, USA

Sustainability, 2021, vol. 13, issue 23, 1-17

Abstract: Eastern oysters ( Crassostrea virginica ) are critical foundation species in estuarine waters, but due to a combination of natural and anthropogenic pressures, oyster abundance has declined. Restoring oyster reefs and monitoring restoration success often focuses on oyster metrics, but relatively infrequently, responses of higher trophic level species and the production of related ecosystem services are accounted for. To address this, we compare the response of a resident reef fish guild (gobies, blennies, toadfish) to standard metrics of oyster restoration success. Using lift nets and seines, natural and restored reefs were monitored over a two-year period within Mosquito Lagoon, Florida, USA. Standard metrics are indicative of restoration success; live oyster density and reef thickness increased in restored reefs after 12 and 24 months. Combined, live oyster density and reef thickness were the best predictors of annual resident reef fish abundance compared to water quality metrics. These results suggest that the benefits of restoring oyster reef habitat are conferred to broader components of the food web, with benefits accruing to reef resident fishes that are a key trophic linkage between lower trophic level foundation species and higher trophic level predators inhabiting coastal ecosystems.

Keywords: oysters; restoration; goby; blenny; toadfish; Indian River Lagoon (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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