The use of the brown macroalgae, Sargassum flavicans, as a potential bioindicator of industrial nutrient enrichment

Alquezar, Ralph, Glendenning, Lionel, and Costanzo, Simon (2013) The use of the brown macroalgae, Sargassum flavicans, as a potential bioindicator of industrial nutrient enrichment. Marine Pollution Bulletin, 77 (1-2). pp. 140-146.

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Abstract

Nutrient bioindicators are increasingly being recognised as a diagnostic tool for nutrient enrichment of estuarine and marine ecosystems. Few studies, however, have focused on field translocation of bioindicator organisms to detect nutrient discharge from industrial waste. The brown macroalgae, Sargassum flavicans, was investigated as a potential bioindicator of nutrient-enriched industrial effluent originating from a nickel refinery in tropical north-eastern Australia. S. flavicans was translocated to a number of nutrient enriched creek and oceanic sites over two seasons and assessed for changes in stable isotope ratios of N-15 and C-13 within the plant tissue in comparison to reference sites. Nutrient uptake in macroalgae, translocated to the nutrient enriched sites adjacent to the refinery, increased 3-4-fold in delta N-15, compared to reference sites. Using delta N-15 of translocated S. flavicans proved to be a successful method for monitoring time-integrated uptake of nitrogen, given the current lack of passive sampler technology for nutrient monitoring. (C) 2013 Elsevier Ltd. All rights reserved.

Item ID: 31773
Item Type: Article (Research - C1)
ISSN: 0025-326X
Keywords: Sargassum flavicans, stable isotopes, nutrient enrichment, bioindicator species, brown algae
Date Deposited: 26 Feb 2014 09:41
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050204 Environmental Impact Assessment @ 70%
03 CHEMICAL SCIENCES > 0399 Other Chemical Sciences > 039901 Environmental Chemistry (incl Atmospheric Chemistry) @ 30%
SEO Codes: 96 ENVIRONMENT > 9605 Ecosystem Assessment and Management > 960511 Ecosystem Assessment and Management of Urban and Industrial Environments @ 50%
96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960802 Coastal and Estuarine Flora, Fauna and Biodiversity @ 50%
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