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Post Doctoral Fellow
Ext. 83620
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Research Interests
Many reef fish and decapods have a bipartite life cycle, characterised by broadcast or benthic spawning followed by a pelagic larval stage, which can be advected 10’s to 100’s of kilometres offshore. As many of these fish and decapods have a sedentary adult phase, the larval pelagic stage aids in their dispersal, with the processes involved having profound effects on the structure and function of reef communities. Recent work has shown that pre-settlement larvae have remarkable swimming abilities and sensory cues to locate suitable settlement habitat. Compared to other potential cues, such as visual and chemical cues, underwater sound theoretically has good prospects as a directional cue for settling larvae because it is transmitted long distances in water and is capable of carrying information on habitat direction and quality. I am not only interested in how larval fish and decapods utilise sound but also in the larger process of connectivity of marine populations.
Post-Graduate Research Opportunities
- Using MRI to investigate the development of fish hearing structures and swim bladder in hearing specialists and generalists
- Investigating the acoustic behaviour of snapping shrimp
- Determining the efficiency of SMURF’s in New Zealand
- Investigating snapper larvae settlement cues
Recent Publications
- Radford, C.A., Jeffs, A.G., Tindle, C.T., Montgomery, J.C. 2008. Resonating sea urchin skeletons create coastal chorus. Marine Ecology Progress Series 362: 37-43.
- Radford, C.A., Jeffs, A.G., Tindle, C.T., Montgomery, J.C. 2008. Temporal patterns in underwater noise of biological origin at a shallow temperate reef. Oecologia 156: 921-929.
- Radford, C.A., Marsden, I.D., Jeffs, A.G. 2008. Specific dynamic action as an indicator of carbohydrate digestion in juvenile lobsters, Jasus edwardsii. Marine and Freshwater Research 59: 841-848.
- Radford, C.A., Marsden, I.D., Davison, W., Jeffs, A.G. 2007. Carbohydrate sources in the diet of juvenile New Zealand rock lobsters, Jasus edwardsii. Aquaculture 273: 151- 157.
- Radford, C.A., Jeffs, A.G., Montgomery, J.C. 2007. Directional swimming response of five species of crab postlarvae in response to reef sound. Bulletin of Marine Science 80(2): 369-378.
- Cole, R.G., Davey, N.K., Gust, N., Syms, C., Notman, P., Stewart, R., Radford, C.A., Carbines, G., Carr, M.H. 2007. Does breathing apparatus affect fish counts and observations? A comparison at three New Zealand fished and protected areas. Marine Biology 150: 1379-1395.
- Radford, C.A., Jeffs, A.G., Tindle, C.T., Cole, R.G., Montgomery, J.C. 2005. Bubbled waters: the noise generated by underwater breathing apparatus. Marine and Freshwater Behaviour and Physiology, 38: 259-267.
- Radford, C.A., Marsden, I.D. 2005. Does time of feeding alter growth rates in cultured juvenile spiny lobsters Jasus edwarsii. Journal of the World Aquaculture Society, 36(4): 480-488.
- Radford, C.A., Marsden, I.D., Davison, W., Taylor, H.H. 2005. Temporal variation in haemolymph glucose concentrations in juvenile New Zealand rock lobsters, Jasus edwardsii, fed a variety of carbohydrates. Comparative Biochemistry and Physiology A, 140: 241-249.
- Radford, C.A., Marsden, I.D., Davison, W. 2004. Temporal variation in the specific dynamic action (SDA) of the juvenile New Zealand rock lobster, Jasus edwardsii. Comparative Biochemistry and Physiology A, 139: 1-9.
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