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Effects of pollution from anthropogenic point sources on the recruitment of sessile estuarine reef biota

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Fowles, AE, Edgar, GJ ORCID: 0000-0003-0833-9001, Stuart-Smith, RD ORCID: 0000-0002-8874-0083, Kirkpatrick, JB ORCID: 0000-0002-3152-3299, Hill, N ORCID: 0000-0001-9329-6717, Thomson, RJ and Strain, EMA 2018 , 'Effects of pollution from anthropogenic point sources on the recruitment of sessile estuarine reef biota' , Frontiers in Marine Science, vol. 5 , pp. 1-10 , doi: 10.3389/fmars.2018.00417.

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Abstract

Expanding urbanization in estuaries and the increase in pollutants from anthropogenic point sources can affect nearby benthic assemblages. Using a paired impact-control design, we assessed the effects of pollution from anthropogenic point sources (marinas, storm-water drains, sewage outfalls and fish farms) on algal and sessile invertebrate recruits to pavers placed in an industrialized Tasmanian estuary. Species number and cover of native recruits were lower after 12 months at sites outside marinas relative to paired control sites, whereas non-native and cryptogenic recruits were significantly higher outside marinas and near sewage outfalls. The cover of fast-growing, opportunistic species was significantly higher at sites near fish farms and sewage outfalls, and the cover of native species was also greater at sites near sewage outfalls relative to the paired control sites. Our results suggest an increased management focus on controlling pollution from marinas and sewage outfalls is warranted to limit the spread of non-native and cryptogenic species.

Item Type: Article
Authors/Creators:Fowles, AE and Edgar, GJ and Stuart-Smith, RD and Kirkpatrick, JB and Hill, N and Thomson, RJ and Strain, EMA
Keywords: introduced species, macroalgae, sewage outfall, fish farm, marine, stormwater drainage, marina
Journal or Publication Title: Frontiers in Marine Science
Publisher: Frontiers Research Foundation
ISSN: 2296-7745
DOI / ID Number: 10.3389/fmars.2018.00417
Copyright Information:

Copyright 2018 Fowles, Edgar, Stuart-Smith, Kirkpatrick, Hill, Thomson and Strain. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

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