Abalone under moderate heat stress have elevated metabolic rates and changes to digestive enzyme activities

Autor: Alyssa R, Frederick, Ariana M, Lee, Beck A, Wehrle, Caitlyn C, Catabay, Daniel R, Rankins, Kendall D, Clements, Donovan P, German
Rok vydání: 2022
Předmět:
Zdroj: Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology. 270:111230
ISSN: 1095-6433
Popis: Abalone around the world are subject to increasing frequency of marine heatwaves, yet we have a limited understanding of how acute high temperature events impact the physiology of these commercially and ecologically important species. This study examines the impact of a 5 °C temperature increase over ambient conditions for six weeks on the metabolic rates, digestive enzyme activities in the digestive gland, and digestive efficiency of Red Abalone (Haliotis rufescens) and Pāua (H. iris) on their natural diets. We test the hypothesis that abalone digestive function can keep pace with this increased metabolic demand in two separate experiments, one for each species. H. iris had higher food intake in the heat treatment. Both species had higher metabolic rates in the heat treatment with Q
Databáze: OpenAIRE