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
- Caterina Maria Antognazza, Silvia Quadroni, Isabella Vanetti, Vanessa De Santis, Giuseppe Crosa, Serena Zaccara, The increasing spread of the European barbel in the Italian large lowland rivers is threatening the native species , Journal of Limnology: Vol. 81 No. s2 (2022): Effects of water level management on lake littorals and downstream river areas
- Eva Pažourková, Josef Křeček, Peter Bitušík, Pavel Chvojka, Lenka Kamasová, Takaaki Senoo, Jan Špaček, Evžen Stuchlík, Impacts of an extreme flood on the ecosystem of a headwater stream , Journal of Limnology: Vol. 80 No. 2 (2021)
- Hugh B. Feeley, Stephen Davis, Michael Bruen, Sean Blacklocke, Mary Kelly-Quinn, The impact of a catastrophic storm event on benthic macroinvertebrate communities in upland headwater streams and potential implications for ecological diversity and assessment of ecological status , Journal of Limnology: Vol. 71 No. 2 (2012)
- Narumi K. Tsugeki, Jotaro Urabe, An experimental test of the ability of Daphnia galeata resting egg production in Lake Biwa , Journal of Limnology: Vol. 73 No. 1 (2014)
- Zhixin Hu, Xu Sun, Yongjiu Cai, Liyun Guo, Qiankun Chen, Tao Liu, Fei Shi, Liuyan Yang, The habitat type and trophic state determine benthic macroinvertebrate communities in lowland shallow lakes of China , Journal of Limnology: Vol. 75 No. 2 (2016)
- Marta Bolgan, Emilia Chorazyczewska, Ian J. Winfield, Antonio Codarin, Joanne O'Brien, Martin Gammell, First observations of anthropogenic underwater noise in a large multi-use lake , Journal of Limnology: Vol. 75 No. 3 (2016)
- Svein Birger Wærvågen, Tom Andersen, Seasonal quantitative dynamics and ecology of pelagic rotifers in an acidified boreal lake , Journal of Limnology: Vol. 77 No. 1 (2018)
- Cleber C. Figueredo, Ricardo M. Pinto-Coelho, Ana Maria M.B. Lopes, Pedro H.O. Lima, Björn Gücker, Alessandra Giani, From intermittent to persistent cyanobacterial blooms: identifying the main drivers in an urban tropical reservoir , Journal of Limnology: Vol. 75 No. 3 (2016)
- Silvia Giuntini, Clara Tattoni, Alessandra Gagliardi, Alessio Martinoli, Nicola Patocchi, Roberto Lardelli, Adriano Martinoli, Damiano G. Preatoni, Limnology for the ornithologist: effects of Lake Maggiore water level on migratory flows , Journal of Limnology: Vol. 81 No. s2 (2022): Effects of water level management on lake littorals and downstream river areas
- Mindaugas Zilius, Rutger de Wit, Marco Bartoli, Response of sedimentary processes to cyanobacteria loading , Journal of Limnology: Vol. 75 No. 2 (2016)
<< < 11 12 13 14 15 16 17 18 19 20 > >>
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