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Article

Assessment of the Impacts of Anthropogenic Activities on a Large River Using Longfin Eel as a Bioindicator

1
Cawthron Institute, Nelson 7010, New Zealand
2
Northcott Research Consultants Ltd., Hamilton 3200, New Zealand
3
Faculty of Fisheries, Kagoshima University, Kagoshima 890-0065, Japan
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(20), 8412; https://doi.org/10.3390/su12208412
Received: 8 September 2020 / Revised: 2 October 2020 / Accepted: 12 October 2020 / Published: 13 October 2020
The Matāura River is the sixth largest river system in New Zealand and has long been subject to agricultural, industrial, and residential land use activities. The catchment has economic value and is of great cultural importance for local Māori, who have concerns over potential adverse impacts that anthropogenic stressors exert on the health of the river. There is a dearth of information on the impacts of these stressors towards the health of native species such as the longfin eel Anguilla dieffenbachii. This study assessed the environmental status of the Matāura River using biological and chemical methodologies incorporating A. dieffenbachii as a bioindicator species for exposure to multiple anthropogenic stressors. A range of biomarkers were measured in caged and wild-caught eels (when available) to characterize site-specific responses to anthropogenic stressors. While there was no clear indication of cumulative impacts moving from pristine headwaters to the lower reaches of the Matāura River, biomarkers of xenobiotic metabolization were induced in A. dieffenbachia and there was evidence of chemical contamination in sediment and tissue samples. View Full-Text
Keywords: New Zealand; biomarkers; environmental health assessment; Anguilla dieffenbachii New Zealand; biomarkers; environmental health assessment; Anguilla dieffenbachii
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MDPI and ACS Style

Champeau, O.; Ataria, J.M.; Northcott, G.L.; Kume, G.; Barrick, A.; Tremblay, L.A. Assessment of the Impacts of Anthropogenic Activities on a Large River Using Longfin Eel as a Bioindicator. Sustainability 2020, 12, 8412. https://doi.org/10.3390/su12208412

AMA Style

Champeau O, Ataria JM, Northcott GL, Kume G, Barrick A, Tremblay LA. Assessment of the Impacts of Anthropogenic Activities on a Large River Using Longfin Eel as a Bioindicator. Sustainability. 2020; 12(20):8412. https://doi.org/10.3390/su12208412

Chicago/Turabian Style

Champeau, Olivier, James M. Ataria, Grant L. Northcott, Gen Kume, Andrew Barrick, and Louis A. Tremblay 2020. "Assessment of the Impacts of Anthropogenic Activities on a Large River Using Longfin Eel as a Bioindicator" Sustainability 12, no. 20: 8412. https://doi.org/10.3390/su12208412

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