CSIRO Publishing blank image blank image blank image blank imageBooksblank image blank image blank image blank imageJournalsblank image blank image blank image blank imageAbout Usblank image blank image blank image blank imageShopping Cartblank image blank image blank image You are here: Journals > Marine & Freshwater Research   
Marine & Freshwater Research
Journal Banner
  Advances in the Aquatic Sciences
 
blank image Search
 
blank image blank image
blank image
 
  Advanced Search
   

Journal Home
About the Journal
Editorial Board
Contacts
Content
Online Early
Current Issue
Just Accepted
All Issues
Special Issues
Research Fronts
Sample Issue
For Authors
General Information
Instructions to Authors
Submit Article
Open Access
For Referees
General Information
Review Article
Referee Guidelines
Annual Referee Index
For Subscribers
Subscription Prices
Customer Service
Print Publication Dates

blue arrow e-Alerts
blank image
Subscribe to our Email Alert or RSS feeds for the latest journal papers.

red arrow Connect with us
blank image
facebook twitter youtube

 

 Just Accepted

This article has been peer reviewed and accepted for publication. It is in production and has not been edited, so may differ from the final published form.


Effect of key water quality variables on macroinvertebrate and fish communities within naturally acidic wallum streams.

Aleicia Holland, Leo Duivenvoorden, Susan Kinnear

Abstract

Adverse impacts of acidification on aquatic biota have been observed worldwide, however, most reports are based on freshwaters acidified from anthropogenic means. By contrast, the naturally low pH values may not affect biota within naturally acidic freshwaters. This field study provides information on the water quality, macroinvertebrate and fish communities in little studied naturally acidic wallum streams, Central Queensland, Australia. Mid-range pH sites (pH 5-6) were compared with low pH sites (pH 5 – 3.8), to investigate the effect of pH and other key water quality variables on these communities. Field data indicated that pH had less of an effect in these systems in terms of biotic changes compared with other water quality variables, with dissolved oxygen (% saturation) identified as the key driver for changes in macroinvertebrate composition. Fish were present at all sites including those with pH <4. A number of possible explanations for this lack of pH effect are discussed. These results provide support for the reduced importance of acidity, relative to other water quality parameters, in naturally acidic waters. The work also provides baseline data on the biota of little-studied wallum streams.

MF13285  Accepted 17 April 2014
 
© CSIRO 2014



Legal & Privacy | Contact Us | Help

CSIRO

© CSIRO 1996-2014