Abstract
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 555:151-165 (2016) - DOI: https://doi.org/10.3354/meps11758 Functional responses of North Atlantic fish eggs to increasing temperature Stavroula Tsoukali1,*, André W. Visser2, Brian R. MacKenzie1,2 1Center for Macroecology, Evolution and Climate and 2Center for Ocean Life, National Institute for Aquatic Resources (DTU Aqua), Technical University of Denmark, Kavalergården 6, 2920 Charlottenlund, Denmark *Corresponding author: stts@aqua.dtu.dk ABSTRACT: Temperature increase associated with global climate change can be expected to directly influence the spawning success of fish species, with implications for abundance and distribution. We conducted a meta-analysis to investigate and compare responses of development time, cumulative degree-days and survival of fish eggs from 32 populations of 17 species in the North Atlantic to different temperatures in order to determine potential consequences of global warming for these species. The response of development time exhibited a similar decreasing trend with respect to temperature across species. The similar slopes of regression lines relating ln-transformed development time and temperature indicate similar sensitivity to temperature changes. Across-species differences were mainly driven by intercept values, indicating up to 8-fold differences in development time at given temperature. There was an overall decrease, across species, in an index of thermal requirement (cumulative degree-days) for egg development with increasing temperature. Within an empirically derived optimal thermal range for egg survival, the thermal requirement was more variable in species adapted to cold waters compared to species adapted to warmer waters. Moreover, the sensitivity of survival of eggs from different species to increases in temperature differed, reflecting a pattern of sensitivity along a stenotherm-eurytherm gradient of vulnerability to temperature among species. The results quantify physiological effects of temperature on the eggs, and we propose that such effects are major factors leading to a close correspondence between the physiological optimal temperature for survival and observed temperature at spawning sites. Temperature during egg development appears to be a key evolutionary force affecting spawning time and location. KEY WORDS: Degree-days · Development time · Fish eggs · Global warming · North Atlantic · Survival · Temperature effects Full text in pdf format Supplementary material PreviousNextCite this article as: Tsoukali S, Visser AW, MacKenzie BR (2016) Functional responses of North Atlantic fish eggs to increasing temperature. Mar Ecol Prog Ser 555:151-165. https://doi.org/10.3354/meps11758 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 555. Online publication date: August 18, 2016 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2016 Inter-Research.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
