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
- Piotr Klimaszyk, Ryszard Piotrowicz, Piotr Rzymski, Changes in physico-chemical conditions and macrophyte abundance in a shallow soft-water lake mediated by a Great Cormorant roosting colony , Journal of Limnology: Vol. 74 No. 1 (2015)
- Davide A.L. Vignati, Roberta Bettinetti, Aldo Marchetto, Long-term persistence of sedimentary copper contamination in Lake Orta: potential environmental risks 20 years after liming , Journal of Limnology: Vol. 75 No. s2 (2016): Lake Orta: a new lease on life
- Clara E. Moreno, Eirik Fjeld, Min K. Deshar, Espen Lydersen, Seasonal variation of mercury and δ15N in fish from Lake Heddalsvatn, southern Norway , Journal of Limnology: Vol. 74 No. 1 (2015)
- Erica E. Scheibler, M. Cristina Claps, Sergio A. Roig-Juñent, Temporal and altitudinal variations in benthic macroinvertebrate assemblages in an Andean river basin of Argentina , Journal of Limnology: Vol. 73 No. 1 (2014)
- Marzia Ciampittiello, Helmi Saidi, Lyudmila Kamburska, Silvia Zaupa, Angela Boggero, Temporal evolution of lake level fluctuations under flood conditions and impacts on the littoral ecosystems , Journal of Limnology: Vol. 81 No. s2 (2022): Effects of water level management on lake littorals and downstream river areas
- Stefan Sommer, Sarma Nandini, S.S.S. Sarma, Arpat Ozgul, Diego Fontaneto, Rotifers in Lake Orta: a potential ecological and evolutionary model system , Journal of Limnology: Vol. 75 No. s2 (2016): Lake Orta: a new lease on life
- Johann P. Müller, David Laloi, Claude Yéprémian, Cécile Bernard, Florence D. Hulot, To flee or not to flee: detection, avoidance and attraction of profitable resources by Daphnia magna studied with olfactometer , Journal of Limnology: Vol. 72 No. 3 (2013)
- Andrea Gall, Martin J. Kainz, Serena Rasconi, Daphnia magna fitness during low food supply under different water temperature and brownification scenarios , Journal of Limnology: Vol. 76 No. 1 (2017)
- Jong-Yun Choi, Kwang-Seuk Jeong, Geung-Hwan La, Gea-Jae Joo, Spatio-temporal distribution of Diaphanosoma brachyurum (Cladocera: Sididae) in freshwater reservoir ecosystems: importance of maximum water depth and macrophyte beds for avoidance of fish predation , Journal of Limnology: Vol. 74 No. 2 (2015)
- Michael A. Figueroa-Sanchez, Nandini Sarma, S.S.S. Sarma, Zooplankton community structure in the presence of low levels of cyanotoxins: a case study in a high altitude tropical reservoir (Valle de Bravo, Mexico) , Journal of Limnology: Vol. 73 No. 1 (2014)
<< < 10 11 12 13 14 15 16 17 18 19 > >>
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