A field and experimental study on the tolerances of fish to Eucalyptus camaldulensis leachate and low dissolved oxygen concentrations
Damien McMaster A B and Nick Bond AA School of Biological Sciences, Monash University, Clayton, Victoria 3800, Australia.
B Corresponding author. Email: damien.mcmaster@sci.monash.edu.au
Marine and Freshwater Research 59(2) 177-185 https://doi.org/10.1071/MF07140
Submitted: 3 August 2007 Accepted: 26 January 2008 Published: 27 February 2008
Abstract
In intermittent streams, deteriorating water quality during drying influences fish survival but the specific effects of individual variables and their interactions are poorly known. During summer 2002 and 2004, fish were surveyed in isolated pools of two lowland intermittent streams in south-east Australia. Despite a low dissolved oxygen (DO, range = 0.4–6.8 mg L–1) and high dissolved organic carbon (DOC, 16–50 mg L–1) concentrations, assemblage composition and abundance of native fish appeared unaffected. In subsequent laboratory experiments, concentrations of DO and DOC were independently manipulated to identify better the tolerance of these species to extremes in environmental conditions. At low DOC concentrations (20 mg L–1), no significant effects were observed. At high DOC concentrations (50, 70 and 80 mg L–1), an interaction was observed between DOC and DO, with significant reductions in resistance (decreased time to loss of buoyancy). At extreme DOC concentrations (99 mg L–1), the effect of DO appeared to have been overridden by a strong effect from DOC (rapid loss of equilibrium). The thresholds observed suggest these species have a high resistance to ‘blackwater events’ caused by leaching of DOC from terrestrial leaf litter. Our findings are consistent with the observed tolerances of fish occupying habitats, both in Australia and elsewhere in the world, where extreme physicochemical conditions are a regular and predictable occurrence.
Additional keywords: blackwater events, Galaxis olidus, Hypseleotris klunzingeri, intermittent streams, Nannoperca australis.
Acknowledgements
Many thanks go to Amanda Lee, Paul Reich, Mike Grace, Matthew Johnson, Sam Lake, Slobodanka Stojkovic-Tadic, Darren Baldwin and David Reid for help in the laboratory and comments on the manuscript. We also thank Andrew Boulton and four anonymous reviewers whose constructive comments significantly improved the manuscript. Nick Bond thanks the eWater CRC for funding support. This research was completed with the permission of the Monash University Animal Ethics Committee.
Balcombe, S. R. , and Closs, G. P. (2000). Variation in carp gudgeon (Hypseleotris spp.) catch rate in dense macrophytes. Journal of Freshwater Ecology 15(3), 389–395.
Conde, E. , Cadahía, E. , and García-Vallejo, M. C. (1997). Low molecular weight polyphenols in leaves of Eucalyptus camaldulensis, E. globulus and E. rudis. Phytochemical Analysis 8, 186–193.
| Crossref | GoogleScholarGoogle Scholar |
McNeil, D. G. , and Closs, G. P. (2007). Behavioural responses of a south-east Australian floodplain fish community to gradual hypoxia. Freshwater Biology 52, 412–420.
| Crossref | GoogleScholarGoogle Scholar |
Robb, T. , and Abrahams, M. V. (2003). Variation in tolerance to hypoxia in a predator and prey species: an ecological advantage of being small? Journal of Fish Biology 62, 1067–1081.
| Crossref | GoogleScholarGoogle Scholar |
Serrano, L. , and Boon, P. I. (1991). Effect of polyphenolic compounds on alkaline phosphate activity: Its implication for phosphorus regeneration in Australian freshwaters. Archiv für Hydrobiologie 123, 1–19.
Steinberg, C. E. W. , Kamara, S. , Prokhotskaya, V. Y. , Manusadžianas, L. , and Karasyova, T. A. , et al. (2006). Dissolved humic substances – ecological driving forces from the individual to the ecosystem level? Freshwater Biology 51, 1189–1210.
| Crossref | GoogleScholarGoogle Scholar |
Temmink, J. H. M. , Field, J. A. , Van Haastrecht, J. C. , and Merkelbach, R. C. M. (1989). Acute and sub-acute toxicity of bark tannins in carp (Cyprinus carpio L). Water Research 23(3), 341–344.
| Crossref | GoogleScholarGoogle Scholar |
Towns, D. R. (1985). Limnological characteristics of a South Australian intermittent stream brown-hill creek. Australian Journal of Marine and Freshwater Research 36(6), 821–838.
| Crossref | GoogleScholarGoogle Scholar |
Townsend, S. A. , and Edwards, C. A. (2003). A fish kill event, hypoxia and other limnological impacts associated with early wetseason flow into a lake on the Mary River floodplain, tropical northern Australia. Lakes and Reserviors: Research Management 8, 169–176.
Tramer, E. J. (1977). Catastrophic mortality of stream fishes trapped in shrinking pools. American Midland Naturalist 97, 469–478.
| Crossref | GoogleScholarGoogle Scholar |
Woody, C. A. , Nelson, J. , and Ramstad, K. (2002). Clove oil as an anaesthetic for adult sockeye salmon: field trials. Journal of Fish Biology 60, 340–347.
| Crossref | GoogleScholarGoogle Scholar |
Wu, R. S. S. (2002). Hypoxia: from molecular responses to ecosystem responses. Marine Pollution Bulletin 45, 35–45.
| Crossref | GoogleScholarGoogle Scholar | PubMed |
Zhou, B. S. , Wu, R. S. S. , Randall, D. J. , and Lam, P. K. S. (2001). Bioenergetics and RNA/DNA ratios in the common carp (Cyprinus carpio) under hypoxia. Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology 171(1), 49–57.
| Crossref | GoogleScholarGoogle Scholar | PubMed |