You and Your CourseOpportunities
Research and Teaching
Our ResearchResearch Degrees
Partners and Community
Partner with JCU
- About JCUPartner with JCU
- Careers and Employability
- College of Arts, Society and Education
- College of Healthcare Sciences
- College of Medicine and Dentistry
- Division of Tropical Environments and Societies
- International Students
- JCU Eduquarium
- Open Day
- Parents and Partners
- Pathways to University
- JCU Connect
- Scholarships @ JCU
- Media & Comms
- Australian Institute of Tropical Health & Medicine
- About JCU
Featured News Baby fish feeling the heat
Baby fish feeling the heat
Researchers at the ARC Centre of Excellence for Coral Reef Studies at James Cook University have found that long hot summers can wreak havoc on the development of coral reef fish.
In one of the longest studies of its kind, the researchers examined the impacts of water temperature, wind, rainfall and solar radiation on damselfish larvae around Lizard Island at the northern end of the Great Barrier Reef.
“We found that when ocean temperatures warmed beyond about 28°C, the pace of larval development slowed,” said study lead author, Dr Ian McLeod.
“The findings are a concern,” said study co-author, Professor Mark McCormick.
“To see adverse effects over the current-day temperature range raises concerns about the serious negative effects we may see when the ocean temperature warms with climate change.”
Most marine fishes go through a larval development stage in the open ocean when they are more vulnerable to predators.
Dr McLeod said the longer larvae remain in this stage the less likely they are to survive.
“Faster growth during the larval stage should lead to a survival advantage because they can develop sooner and get out of the dangerous pelagic environment faster,” he says.
However there is a ray of hope. The researchers also found a high level of variability in larval development in relation to temperature and other weather conditions.
“This high level of variability likely means that some fish will thrive in the changing conditions and pass on their genes to future generations” said Dr McLeod.
The authors hope that the results for this study will be used to help predict the effects of climate change on larval development of fishes.
Dr Ian McLeod is a former PhD Candidate at ARC CoE and is now a Senior Research Scientist at TropWATER, James Cook University.
Dr Ian McLeod
P: 07 4781 5474
Professor Mark McCormick
Interannual variation in the larval development of a coral reef fish in response to temperature and associated environmental factors, by Ian M. McLeod, Rhondda E. Jones, Geoffrey P. Jones, Miwa Takahashi and Mark I. McCormick is published in the journal, Marine Biology. DOI 10.1007/s00227-015-2765-y
(Please credit as marked).
- James Cook University
- Bachelor of Advanced Science
- Bachelor of Arts
- Bachelor of Biomedical Sciences
- Bachelor of Business
- Bachelor of Business / Laws
- Bachelor of Business & Environmental Science
- Bachelor of Dental Surgery
- Bachelor of Early Childhood Education
- Bachelor of Primary Education
- Bachelor of Secondary Education
- Bachelor of Environmental Practice
- Bachelor of Geology
- Bachelor of Information Technology
- Bachelor of Laws
- Bachelor of Nursing Science (External)
- Bachelor of Midwifery
- Bachelor of Pharmacy
- Bachelor of Physiotherapy
- Bachelor of Planning
- Bachelor of Psychological Science
- Bachelor of Science
- Bachelor of Social Work
- Bachelor of Speech Pathology
- Bachelor of Sport & Exercise Science
- Bachelor of Veterinary Science
- Bachelor of Clinical Sciences (Honours)
- Bachelor of Engineering (Honours)
- Bachelor of Engineering / Science (Honours) MBA in Tourism
- Master of Public Health and Tropical Medicine
- Master of Data Science
- Bachelor of Sports Psychology
- Bachelor of Marine Science
- Bachelor of Medicine / Surgery
- Bachelor of Nursing Science [Pre-Registration]
- Bachelor of Medical Laboratory Science (Honours)
- Bachelor of Occupational Therapy (Honours)
- Bachelor of Psychology
- Master of Conflict Management & Resolution
- Graduate Certificate of Conflict Management & Resolution
- Master of Global Development
- Master of International Tourism & Hospitality Management
- Bachelor of Technology and Innovation
- Bachelor of Science & Bachelor of Laws
- Diploma of Higher Education
- Diploma of Higher Education (Business)
- Diploma of Higher Education Majoring in Business Studies
- Diploma of Higher Education Majoring in Engineering and Applied Science
- Diploma of Higher Education Majoring in General Studies
- Diploma of Higher Education Majoring in Health
- Diploma of Higher Education Majoring in Information Technology
- Diploma of Higher Education Majoring in Science
- Diploma of Higher Education, Majoring in Society and Culture