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
- Luciana MASTRANTUONO, Teresa MANCINELLI, Littoral invertebrates associated with aquatic plants and bioassessment of ecological status in Lake Bracciano (Central Italy) , Journal of Limnology: Vol. 64 No. 1 (2005)
- Roumen KALCHEV, Ivan BOTEV, Milena HRISTOZOVA, Wesselin NAIDENOW†, Galerida RAIKOVA-PETROVA, Maya STOYNEVA, Dobrina TEMNISKOVA-TOPALOVA, Teodora TRICHKOVA, Ecological relations and temporal changes in the pelagial of the high mountain lakes in the Rila Mountains (Bulgaria) , Journal of Limnology: Vol. 63 No. 1 (2004)
- Yosef Z. YACOBI, Ilia OSTROVSKY, Helen M. TALBOT, Occurrence of high concentrations of a unique degradation product of chlorophyll-a in particles residing below the thermocline throughout a period of oxygen depletion in Lake Kinneret , Journal of Limnology: Vol. 60 No. 2 (2001)
- Walter AMBROSETTI, Luigi BARBANTI, Deep water warming in lakes: an indicator of climatic change , Journal of Limnology: Vol. 58 No. 1 (1999)
- Sujeephon Athibai, Hendrik Segers, La-orsri Sanoamuang, Diversity and distribution of Brachionidae (Rotifera) in Thailand, with a key to the species , Journal of Limnology: Vol. 72 No. s2 (2013): Freshwater Invertebrates of Southeast Asia
- Marianna Soroka, Maria Urbańska, Wojciech Andrzejewski, Chinese pond mussel Sinanodonta woodiana (Lea, 1834) (Bivalvia): origin of the Polish population and GenBank data , Journal of Limnology: Vol. 73 No. 3 (2014)
- Tímea Chamutiová, Ladislav Hamerlík, Katarzyna Szarlowicz, Radovan Pipík, Dušan Starek, Ferdinand Šporka, Marcela Přidalová, Lucia Sochuliaková, Peter Bitušík, Historical development of three man-made reservoirs in a mining region: A story told by subfossil chironomids , Journal of Limnology: Vol. 77 No. s1 (2018): Recent advances in the study of Chironomidae: An overview
- Matteo PERINI, Federica CAMIN, Flavio CORRADINI, Ulrike OBERTEGGER, Giovanna FLAIM, Use of δ18O in the interpretation of hydrological dynamics in lakes , Journal of Limnology: Vol. 68 No. 2 (2009)
- Thomas C. Jensen, Winter decrease of zooplankton abundance and biomass in subalpine oligotrophic Lake Atnsjøen (SE Norway) , Journal of Limnology: Vol. 78 No. 3 (2019)
- Alberto BARBIERI, Mauro VERONESI, Marco SIMONA, Stefano MALUSARDI, Viera STRAŠKRABOVÁ, Limnological survey in eight high mountain lakes located in Lago Maggiore watershed (Switzerland) , Journal of Limnology: Vol. 58 No. 2 (1999)
<< < 60 61 62 63 64 65 66 67 68 69 > >>
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