Personal profile
Research interests
Colton has worked in tropical Australian fish ecology for over 25 years. He has done extensive survey work from Townsville to Borrolloola. He completed a MSc. on fish habitat restoration in 2003 working on the highly modified floodplain wetlands of the Burdekin River south of Townsville. After completing his MSc. he worked with the then named Australian Centre for Freshwater Research (now TropWater) at JCU as a research scientist. As well as his work with JCU and various state agencies Colton has a keen interest in Electrofishing boat design and sampling efficiency. He has helped design boats here in Australia and Singapore through his business Efish. Colton in interested in further understanding fish ecology via food webs, especially in relation to flow as improved knowledge of our fish communities will help ameliorate the impacts of future water resource development in Tropical Australia.
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 6 Clean Water and Sanitation
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SDG 13 Climate Action
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SDG 15 Life on Land
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Collaborations and top research areas from the last five years
Projects
- 1 Active
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Flows and fish community tropic ecology in tropical riverfloodplains
Kopf, R. K. (Principal Investigator/Chief Investigator A) & Perna, C. (Student Investigator)
1/07/21 → …
Project: HDR Project › PhD
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Floods connect tropical river–floodplain food webs but shrink fish community isotopic trophic niches
Perna, C. N., McPhan, L., Jardine, T. D., Meyer, L. & Kopf, R. K., Jan 2026, In: Hydrobiologia. 853, 9, p. 2591-2607 17 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile1 Downloads (Pure) -
Species Richness of Freshwater Fish Trophic Guilds Increases With Tropical River Discharge and Decreases With Variability
Perna, C. N., Sternberg, D., Kennard, M. J., Luiz, O. J., Irvine, D. J., Stratford, D. & Kopf, R. K., Oct 2025, In: Ecology and Evolution. 15, 10, p. 1-10 10 p., e72343.Research output: Contribution to journal › Article › peer-review
Open AccessFile2 Downloads (Pure) -
Ecological assets of northern Australia to inform water resource assessments: A technical report from the CSIRO Roper River Water Resource Assessment for the National Water Grid
Stratford, D., Kenyon, R., Pritchard, J., Merrin, L., Linke, S., Ponce Reyes, R., Blamey, L., Buckworth, R., Castellazzi, P., Costin, B., Deng, R., Gannon, R., Gilbey, S., King, D., Kopf, K., Kopf, S., McGinness, H., McInerney, P., Perna, C. & Plaganyi, E. & 1 others, , 2022, Australia: CSIRO. 242 p.Research output: Book/Report › Other report › peer-review
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Phylogeography of the mouth-brooding freshwater fish Glossamia aprion (Apogonidae) in northern and eastern Australia: Historical biogeography and allopatric speciation
Cook, B. D., Adams, M., Unmack, P. J., Burrows, D., Pusey, B. J., Perna, C. & Hughes, J. M., Aug 2017, In: Biological Journal of the Linnean Society. 121, 4, p. 833-848 16 p.Research output: Contribution to journal › Article › peer-review
9 Link opens in a new tab Citations (Scopus) -
Contrasting and complex evolutionary histories within the terapontid grunter genus Hephaestus revealed by nuclear and mitochondrial genes
Pusey, B. J., Bentley, A., Burrows, D., Perna, C., Davis, A. & Hughes, J., 2016, In: Marine and Freshwater Research. 67, 12, p. 1813-1825 13 p.Research output: Contribution to journal › Article › peer-review
7 Link opens in a new tab Citations (Scopus) -
Removal Of Aquatic Weeds Greatly Enhances Fish Community Richness And Diversity: An Example From The Burdekin River Floodplain, Tropical Australia
Perna, C. N., Cappo, M., Pusey, B. J., Burrows, D. W. & Pearson, R. G., Oct 2012, In: River Research and Applications. 28, 8, p. 1093-1104 12 p.Research output: Contribution to journal › Article › peer-review
41 Link opens in a new tab Citations (Scopus) -
Is the elusive Gymnothorax polyuranodon really a freshwater moray?
Ebner, B. C., Kroll, B., Godfrey-Faussett, P., Thuesen, P. A., Vallance, T., Pusey, B., Allen, G. R., Rayner, T. S. & Perna, C. N., Jul 2011, In: Journal of Fish Biology. 79, 1, p. 70-79 10 p.Research output: Contribution to journal › Article › peer-review
12 Link opens in a new tab Citations (Scopus)
Activities
- 3 Oral presentation
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Floods connect tropical river-floodplain food webs but shrink fish community isotopic trophic niches.
Perna, C. (Speaker)
2025Activity: Talk or presentation › Oral presentation
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Floods reduce food web quality in a free-flowing tropical river-floodplain ecosystem
Perna, C. (Speaker)
2025Activity: Talk or presentation › Oral presentation
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Food quality and fish communities in a free-flowing tropical river and wetlands.
Perna, C. (Speaker)
2023Activity: Talk or presentation › Oral presentation
Thesis
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Natural flow regimes and fish community trophic ecology in tropical river-floodplains of northern Australia
Perna, C. (Author), Kopf, R. (Supervisor), Luiz, O. (Supervisor) & Stratford, D. (Supervisor), Feb 2026Student thesis: Doctor of Philosophy (PhD) - CDU
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