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Desalination Discharge Influences the Composition of Reef Invertebrate and Fish Assemblages.
Kelaher, Brendan P; Clark, Graeme F; Johnston, Emma L; Ingleton, Tim; Knott, Nathan A; Coleman, Melinda A.
Afiliación
  • Kelaher BP; National Marine Science Centre and Marine Ecology Research Centre, Southern Cross University, P.O. Box 4321, Coffs Harbour, NSW 2450, Australia.
  • Clark GF; School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, NSW 2052, Australia.
  • Johnston EL; School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, NSW 2052, Australia.
  • Ingleton T; NSW Department of Planning, Industry and Environment, 480 Weerooona Road Lidcombe, Sydney, NSW 2141, Australia.
  • Knott NA; New South Wales Department of Primary Industries, Fisheries, P.O. Box 89, Huskisson, NSW 2540, Australia.
  • Coleman MA; National Marine Science Centre and Marine Ecology Research Centre, Southern Cross University, P.O. Box 4321, Coffs Harbour, NSW 2450, Australia.
Environ Sci Technol ; 56(16): 11300-11309, 2022 08 16.
Article en En | MEDLINE | ID: mdl-35880958
Large-scale desalination is used increasingly to address growing freshwater demands and climate uncertainty. Discharge of hypersaline brine from desalination operations has the potential to impact marine ecosystems. Here, we used a 7-year Multiple-Before-After-Control-Impact experiment to test the hypothesis that hypersaline discharge from reverse osmosis desalination alters temperate reef communities. Using replicated, video-based, timed searches at eight sites, we sampled fish and invertebrate assemblages before, during, and after the discharge of hypersaline brine. We found that the composition of fish assemblages was significantly altered out to 55 m while the composition of invertebrate assemblages was altered out to 125 m from the outlet during hypersaline discharge. Fish richness and functional diversity increased around the outlet, while the invertebrate assemblages were no less diverse than those on reference reefs. Differences in faunal assemblages between outlet and reference sites during discharging included changes in the frequency of occurrence of both common and rare reef biota. Overall, we found the influence of hypersaline discharge on temperate reef biota to be spatially localized, with the reefs around the outlet continuing to support rich and diverse faunal communities. In some cases, therefore, the marine environmental consequences of large-scale, well-designed, desalination operations may be appropriately balanced against the positive benefits of improved water security.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ecosistema / Arrecifes de Coral Límite: Animals Idioma: En Revista: Environ Sci Technol Año: 2022 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ecosistema / Arrecifes de Coral Límite: Animals Idioma: En Revista: Environ Sci Technol Año: 2022 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Estados Unidos