A1 Journal article (refereed)
Effects of incubation temperature and maternal phenotype on Baltic herring (Clupea harengus membras) eggs and larvae : An experimental study (2024)

Mäkinen, K., Rajasilta, M., Ruuskanen, S., Karpela, T., Lauerma, A. O., & Sahlstén, J. (2024). Effects of incubation temperature and maternal phenotype on Baltic herring (Clupea harengus membras) eggs and larvae : An experimental study. Canadian Journal of Fisheries and Aquatic Sciences, 81(8), 1052-1065. https://doi.org/10.1139/cjfas-2023-0032

JYU authors or editors

Publication details

All authors or editors: Mäkinen, Katja; Rajasilta, Marjut; Ruuskanen, Suvi; Karpela, Tiia; Lauerma, Aarne O.; Sahlstén, Johannes

Journal or series: Canadian Journal of Fisheries and Aquatic Sciences

ISSN: 0706-652X

eISSN: 1205-7533

Publication year: 2024

Publication date: 01/09/2023

Volume: 81

Issue number: 8

Pages range: 1052-1065

Publisher: Canadian Science Publishing

Publication country: Canada

Publication language: English

DOI: https://doi.org/10.1139/cjfas-2023-0032

Publication open access: Not open

Publication channel open access: 

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/88934

Abstract

Temperature modifies the reproductive success of fish, yet, in many species, we lack the information on its role in the early development. In this study, the effect of temperature on the relation between maternal traits (length, age, somatic condition, and muscle lipid and ovarian thyroid hormone concentrations), egg quality (fertilization success, development rate, mortality, and hatching success), and offspring traits (size-at-hatch, yolk sac size, and proportion of malformations) were studied in Baltic herring (Clupea harengus membras) in the northern Baltic Sea. The experiments were conducted at an ambient temperature of 7°C and at an elevated temperature of 14°C using 5 to 15 females and 3 replicates per female. The results indicate that elevated temperature may result in a faster developmental rate, a lower early-stage mortality and hatching success, smaller size-at-hatch, a larger yolk sac size and a higher amount of larval malformations when compared to an ambient temperature. The egg and offspring traits were also associated with the maternal traits, indicating especially that thyroid hormones play a mediating role in the physiological processes.

Keywords: climate changes; temperature; reproduction (biology); fishes; Baltic herring

Free keywords: Baltic herring; egg quality; maternal effects; climate change; thyroid hormones

Contributing organizations

Ministry reporting: Yes

VIRTA submission year: 2023

JUFO rating: 2