Special Issue "Fish Metabolic Physiology in Response to Stress"

A special issue of Biology (ISSN 2079-7737).

Deadline for manuscript submissions: 1 September 2019

Special Issue Editors

Guest Editor
Dr. Edward M. Mager

Department of Biological Sciences and Advanced Environmental Research Institute, University of North Texas, Denton, Texas, United States
Website | E-Mail
Interests: metabolic physiology; fish swimming performance; aquatic toxicology; hypoxia; thermal stress; crude oil; PAHs; metals
Guest Editor
Dr. Ione Hunt von Herbing

Biological Sciences Department & Marine Conservation and Aquatic Physiology Laboratory, University of North Texas, Denton, Texas, United States
Website | E-Mail
Interests: developmental physiology; marine fish ecophysiology; stress and metabolic physiology; fish gut microbiome and probiotics; aquaculture and ocean sustainability

Special Issue Information

Dear Colleagues,

The capacity for fish populations to persist in the face of environmental change is largely a function of the inherent genetic variation in the population and individual plasticity of traits critical to growth, survival and reproduction and how they respond to environmental change. Metabolic rate is a functional trait that provides a holistic view of the status of both individuals and populations given that it underlies much of an animal’s physiology and ecology. Consequently, there has been increased interest in both intra- and inter-specific variation in metabolic phenotypes as potential avenues for populations and communities to respond to changing environments, such as those associated with global climate change. This Special Issue will focus on current advances in the field of fish metabolic physiology with an emphasis on the influences of environmental stressors (e.g., hypoxia, temperature, pollution, etc.) on fish metabolic phenotypes. A central theme will be linking metabolic impacts to higher order, ecologically-relevant endpoints (e.g., individual and social behaviors, swimming performance, etc.) that will highlight the resiliency of fish facing environmental stressors in both wild and aquaculture settings.

Dr. Edward M. Mager
Dr. Ione Hunt von Herbing
Guest Editors

Manuscript Submission Information

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Keywords

  • metabolic rate
  • developmental physiology
  • early life stages
  • aerobic scope
  • swimming performance
  • behavior
  • environmental stress
  • stress response
  • climate change

Published Papers (1 paper)

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Research

Open AccessArticle Transcriptome Analysis of Yamame (Oncorhynchus masou) in Normal Conditions after Heat Stress
Received: 7 February 2019 / Revised: 25 March 2019 / Accepted: 25 March 2019 / Published: 29 March 2019
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Abstract
Understanding the mechanism of high-temperature tolerance in cold-freshwater fish is crucial for predicting how certain species will cope with global warming. In this study, we investigated temperature tolerance in masu salmon (Oncorhynchus masou, known in Japan as ‘yamame’), an important aquaculture [...] Read more.
Understanding the mechanism of high-temperature tolerance in cold-freshwater fish is crucial for predicting how certain species will cope with global warming. In this study, we investigated temperature tolerance in masu salmon (Oncorhynchus masou, known in Japan as ‘yamame’), an important aquaculture species. By selective breeding, we developed a group of yamame (F2) with high-temperature tolerance. This group was subjected to a high-temperature tolerance test and divided into two groups: High-temperature tolerant (HT) and non-high-temperature tolerant (NT). RNA was extracted from the gill and adipose fin tissues of each group, and the mRNA expression profiles were analyzed using RNA sequencing. A total of 2893 differentially expressed genes (DEGs) from the gill and 836 from the adipose fin were identified by comparing the HT and NT groups. Functional analyses were then performed to identify associated gene ontology (GO) terms and the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. The HT group showed a high expression of heat shock protein 70 (HSP70) gene and enriched gene expression in the extracellular matrix (ECM), cell junction, and adhesion pathways in gill tissues compared to the NT group. The HT group also exhibited highly expressed genes in glycolysis and showed lower expression of the genes in the p53 signaling pathway in adipose fin tissues. Taken together, the difference of expression of some genes in the normal condition may be responsible for the difference in heat tolerance between the HT and NT yamame in the heat stress condition. Full article
(This article belongs to the Special Issue Fish Metabolic Physiology in Response to Stress)
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