Exploring the Effects of Acute Stress Exposure on Lumpfish Plasma and Liver Biomarkers

Overview

Journal Animals (Basel)

Date 2023 Dec 9

PMID 38066974

Authors

Tiago da Santa Lopes

Benjamin Costas

Lourenco Ramos-Pinto

Patrick Reynolds

Albert K D Imsland

Jorge M O Fernandes

Affiliations

Soon will be listed here.

Abstract

This study aimed to expand knowledge on lumpfish stress physiology by investigating the effects of acute stress on primary (i.e., cortisol) and secondary (e.g., metabolites) stress responses, as well as oxidative stress biomarkers, from stress exposure to a recovery phase. The results showed that the lumpfish physiological response to 1 min air exposure is mild, in line with recent studies, and comparable to that described for white sturgeons. Cortisol seems to be the most reliable acute stress biomarker in lumpfish, with a significant increase in plasma 30 min after stress exposure, returning to resting levels 2 h after exposure. In contrast, glucose and lactate were not significantly altered by short-term air exposure. Effects on hepatic energy mobilisation were also detected following the acute stress. This study showed that acute 1 min air exposure seems tolerable, allowing a swift recovery. However, more studies on the impacts of air exposure and repeated acute stressors on lumpfish stress and immune responses are required to develop industry standards for lumpfish health and welfare monitoring.

Citing Articles

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