TY - JOUR

T1 - Handling the heat

T2 - Changes in the heart rate of two congeneric blue mussel species and their hybrids in response to water temperature

AU - Bakhmet, Igor

AU - Aristov, Dmitriy

AU - Марченко, Юлия Тиграновна

AU - Nikolaev, Kirill

N1 - Publisher Copyright: © 2022

PY - 2022/7/1

Y1 - 2022/7/1

N2 - In this study we compared some aspects of the physiology of the invasive blue mussel species Mytilus trossulus and the native Mytilus edulis in the White Sea. We registered the heart activity of M. edulis, M. trossulus and the hybrids in situ for two years and tested their thermal tolerance in a laboratory experiment. In situ monitoring showed that the heart rate, as well as its variability, was greater in the invasive species and the hybrids than in the native mussel species. At the same time, the native species showed a higher thermal tolerance in the laboratory experiment. Our results suggest that, when it comes to adaptation to increased temperature, M. edulis has a greater physiological potential than M. trossulus. In a warming climate, the invasive species may lose in competition with the native one due to a higher level of metabolism.

AB - In this study we compared some aspects of the physiology of the invasive blue mussel species Mytilus trossulus and the native Mytilus edulis in the White Sea. We registered the heart activity of M. edulis, M. trossulus and the hybrids in situ for two years and tested their thermal tolerance in a laboratory experiment. In situ monitoring showed that the heart rate, as well as its variability, was greater in the invasive species and the hybrids than in the native mussel species. At the same time, the native species showed a higher thermal tolerance in the laboratory experiment. Our results suggest that, when it comes to adaptation to increased temperature, M. edulis has a greater physiological potential than M. trossulus. In a warming climate, the invasive species may lose in competition with the native one due to a higher level of metabolism.

KW - Bioinvasions

KW - Cardiac activity

KW - Hybridization

KW - In situ

KW - Mytilus edulis

KW - Mytilus trossulus

KW - Temperature

UR - http://www.scopus.com/inward/record.url?scp=85131097718&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/69f40296-bfa6-31ce-b4a2-280741ec240c/

U2 - 10.1016/j.seares.2022.102218

DO - 10.1016/j.seares.2022.102218

M3 - Article

AN - SCOPUS:85131097718

VL - 185

JO - Journal of Sea Research

JF - Journal of Sea Research

SN - 1385-1101

M1 - 102218

ER -