Skip to Main content Skip to Navigation
Journal articles

Influence of warming temperatures on coregonine embryogenesis within and among species

Abstract : The greatest known global response of lakes to climate change has been an increase in water temperatures. The responses of many lake fishes to warming water temperatures are projected to be inadequate to counter the speed and magnitude of climate change. We experimentally evaluated the responses of embryos from a group of cold, stenothermic fishes (Salmonidae Coregoninae) to increased incubation temperatures. Study groups included cisco (Coregonus artedi) from lakes Superior and Ontario (USA), and vendace (C. albula) and European whitefish (C. lavaretus) from Lake Southern Konnevesi (Finland). Embryos from artificial crossings were incubated at water temperatures of 2.0, 4.5, 7.0, and 9.0°C, and their responses were quantified for developmental and morphological traits. Embryo survival, incubation period, and length-at-hatch were inversely related to incubation temperature whereas yolk-sac volume increased with incubation temperature withinstudy groups. However, varying magnitudes of responses among study groups suggested differential levels of developmental plasticity to climate change. Differential levels of parental effects indicate genetic diversity may enable all study groups to adapt to cope with some degree of changing environmental conditions. Our results suggest that the coregonines sampled within and among systems may have a wide range of embryo responses to warming incubation conditions.
Document type :
Journal articles
Complete list of metadata
Contributor : Emilien Lasne Connect in order to contact the contributor
Submitted on : Wednesday, August 18, 2021 - 5:26:33 PM
Last modification on : Friday, August 20, 2021 - 3:28:40 AM
Long-term archiving on: : Friday, November 19, 2021 - 6:50:32 PM


Stewart et al. 2021.pdf
Files produced by the author(s)




Taylor Stewart, Mikko Mäkinen, Chloé Goulon, Jean Guillard, Timo Marjomäki, et al.. Influence of warming temperatures on coregonine embryogenesis within and among species. Hydrobiologia, Springer, inPress, ⟨10.1007/s10750-021-04648-0⟩. ⟨hal-03322203⟩



Record views


Files downloads