Larval fish sensitivity to a simulated cold-water pulse varies between species and age
Accepted: 27 June 2022
Supplementary: 161
HTML: 135
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.
Authors
The release of cold-water from hypolimnetic zones of impoundments sharply reduces downstream riverine water temperature. This cold-water pollution (CWP) can extend for hundreds of kilometres, severely challenging the physiological ability of aquatic fauna, particularly ectotherms such as fish, to maintain essential processes such as metabolism, development and growth and survival. The impact of CWP on native fish, especially early life stages, is poorly known. We investigated the effect of a 24-hour exposure to a range of environmentally-related water temperatures (8, 10, 12, 14, 16, 18 and 20°C) on three age-classes (<24-hour-old, 7-day and 14-day-old larvae) of two Australian native fish species: Murray cod (Maccullochella peelii) and Macquarie perch (Macquaria australasica). Overall, larvae of M. peelii were more sensitive to lower water temperatures and hence CWP than M. australasica, indicated by higher rates of equilibrium loss. Larvae of M. peelii were most sensitive to exposure at seven days old whereas M. australasica larvae were most sensitive at <24-h-old. Using our results, we modelled pre- and post-impoundment temperature scenarios and estimated the downstream CWP footprint for both species in an Australian river reach. Larvae of M. peelii were predicted to be absent from the first 26 km of river downstream of the impoundment compared with no impact on the distribution of M. australasica. Managing riverine water temperature below impoundments is fundamental to promoting positive outcomes for endemic fish on not only a local, but global basis. This study emphasises the differential impact of CWP among the critical early life stages and fish species and highlights the urgent need to better manage hypolimnetic water releases to improve downstream river ecosystems.
Edited by
Pietro Volta, CNR-IRSA Verbania, ItalyHow to Cite
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Similar Articles
- Nirmal J.I. KUMAR, Hiren SONI, Rita N. KUMAR, Biomonitoring of selected freshwater macrophytes to assess lake trace element contamination: a case study of Nal Sarovar Bird Sanctuary, Gujarat, India , Journal of Limnology: Vol. 65 No. 1 (2006)
- Rosario MOSELLO, Monica AMORIELLO, Tiziana AMORIELLO, Silvia ARISCI, Andrea CARCANO, Nicholas CLARKE, John DEROME, Kirsti DEROME, Nils KOENIG, Gabriele TARTARI, Erwin ULRICH, Validation of chemical analyses of atmospheric deposition in forested European sites , Journal of Limnology: Vol. 64 No. 2 (2005)
- Mario MORI, Sebastiano SALVIDIO, The occurrence of Thelohania contejeani Henneguy, a microsporidian parasite of the crayfish Austropotamobius pallipes (Lereboullet), in Liguria Region (NW Italy) , Journal of Limnology: Vol. 59 No. 2 (2000)
- Wen Liu, Jilili Abuduwaili, Long Ma, Geochemistry of major and trace elements and their environmental significances in core sediments from Bosten Lake, arid northwestern China , Journal of Limnology: Vol. 78 No. 2 (2019)
- Andrzej BYTNEROWICZ, Witold FRACZEK, Susan SCHILLING, Diane ALEXANDER, Spatial and temporal distribution of ambient nitric acid and ammonia in the Athabasca Oil Sands Region, Alberta , Journal of Limnology: Vol. 69 No. s1 (2010): Impacts of sulphur and nitrogen deposition in western Canada
- Rosario MOSELLO, Tiziana AMORIELLO, Sue BENHAM, Nicholas CLARKE, John DEROME, Kirsti DEROME, Gerrit GENOUW, Nils KOENIG, Arianna ORRÙ, Gabriele TARTARI, Anne THIMONIER, Erwin ULRICH, Antti-Jussi LINDROOS, Validation of chemical analyses of atmospheric deposition on forested sites in Europe: 2. DOC concentration as an estimator of the organic ion charge , Journal of Limnology: Vol. 67 No. 1 (2008)
- JIN XIANGCAN, Analysis of eutrophication state and trend for lakes in China , Journal of Limnology: Vol. 62 No. s1 (2003): Residence Time in Lakes: Science, Management, Education
- Łukasz Michalczyk, Łukasz Kaczmarek, The Tardigrada Register: a comprehensive online data repository for tardigrade taxonomy , Journal of Limnology: Vol. 72 No. s1 (2013): 12th International Symposium on Tardigrada
- Tanner Liang, Julian Aherne, Physical and chemical characteristics of 1300 lakes and ponds across the Canadian Arctic , Journal of Limnology: Vol. 79 No. 3 (2020)
- Mirosław ŚLUSARCZYK, Environmental plasticity of fish avoidance diapause response in Daphnia magna , Journal of Limnology: Vol. 63 No. s1 (2004): Diapause In Aquatic Invertebrates
<< < 63 64 65 66 67 68 69 70 71 72 > >>
You may also start an advanced similarity search for this article.
-
John D. Koehn, Charles R. Todd, Henry Wootton, Michael JoyMarine and Freshwater Research : 2023