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Professor Cliff Jones

Head of Department

Cliff Jones

Phone: 046 603 8415

Email: c.jones@ru.ac.za

 

Biography

Cliff Jones is presently employed as an Associate Professor and the Head of Department, in the Department of Ichthyology and Fisheries Science (DIFS) at Rhodes University (RU). He graduated with a PhD in Fisheries Science from Rhodes University (RU) in 2003, and has more than 20 years’ experience in undergraduate and postgraduate teaching. He jointly coordinated the DIFS honours course from 2010-2018 and developed the current aquaculture curriculum for that program. He has supervised/co-supervised the projects of 30 BSc Honours, 21 MSc (four with distinction) and five PhD students to graduation, and is currently supervising two BSc Honours, five MSc and four PhD students.

Cliff has experience in research, development, community engagement and professional services provision in the fields of aqua-feed and aquaculture technology development, and particularly in developing a circular economy in aquaculture and water remediation, in both fresh and marine systems. He currently manages four research programs: (1) the remediation of industrial effluent using alternative, sustainable technologies (i.e. algal ponding, constructed wetlands, hydroponics and crop irrigation) with a focus on recovering wastewater and nutrients for reuse in aquaculture and small-scale crop farming; (2) abalone feed development and integrating macro-algae into these diets and assessing and mitigating the biosecurity risk associated with this practice; (3) developing technology to farm macro-algae with mussels or abalone in land and sea-based integrated multitrophic aquaculture (IMTA) systems; (4) sex reversal of Nile tilapia using alternative methods. He has published 38 scientific papers in peer-reviewed journals and has delivered/co-authored 112 papers at scientific conferences in these fields. He has brought in and managed over R22-million of research funding for his research programs between 2006 and 2019.

He led Rhodes University’s involvement in a multi-national, multi-institutional initiative to review and develop PhD curricula in aquaculture across several African countries (ACP-EU: Edulink II) and currently heads the same university’s involvement in an initiative to mobilize university staff, MSc and PhD student working in aquaculture and fisheries science across eight African countries (COTRA). He reviews papers for several international academic journals; has acted as external examiner in the Department Fisheries and Aquatic Sciences, Eldoret University (Kenya); has acted as external examiner on several PhD/MSc theses; serves on numerous research steering committees for the Water Research Commission (WRC); was a member of the Animal Science Panel for the National Research Foundation’s Technology and Human Resource for Industry Program (THRIP); is registered with the South African Council for National Scientific Professions (SACNASP: 400061/14); conducts technical audits for the NRF’s Research Technology Fund; is a member of the Science Faculty at RU and has represented the DIFS on various internal committees at RU; was a member of the International Abalone Society (IAS); and serves on a panel for the South African Bureau of Standards (SABS) for farmed aquaculture products.

 

Select publications

  1. Abaho I, Masembe C, Akoll P, Jones CLW. 2021. The use of plant extracts to control tilapia reproduction: Current status and future perspectives. Journal of the World Aquaculture Society. https://doi.org/10.1111/jwas.12863
  2. Jones CLW, Nell A, Adesolla A, Shipton T, Kaiser H. 2021. The effect of fishmeal replacement with terrestrial protein sources on growth, body condition and intestinal microbiota of juvenile dusky kob Argyrosomus japonicus. African Journal of Marine Science 43(1): 45-52. https://doi.org/10.2989/1814232X.2020.1864472 
  3. Mabasa NC, Jones CLW, Laing M. 2021. The use of treated brewery effluent for salt tolerant crop irrigation. Agricultural Water Management 245 https://doi.org/10.1016/j.agwat.2020.106590
  4. Taylor RP, Jones CLW, Laubscher RK. 2021. Empirical comparison of activated sludge and high rate algal ponding technologies used to recover water, nitrogen and carbon from brewery effluent. Journal of Water Process Engineering 40: https://doi.org/10.1016/j.jwpe.2020.101840
  5. Taylor RP, Jones CLW, Laubscher RK. 2021. Recovery of methane and adding value to the digestate of biomass produced by high rate algal ponds or waste activated sludge, used to treat brewery effluent. Journal of Water Process Engineering 256: 780-804 https://doi.org/10.1016/j.jwpe.2020.101797
  6. Taylor RP, Jones CLW, Laing M. 2021. Effect of pH on nutrient removal and crop production of hydroponic systems treating brewery effluent. Water Supply 21(5): 1966-1979. https://doi.org/10.2166/ws.2020.330
  7. Taylor RP, Jones CLW, Laubscher R. 2021. Agricultural fertilizer from brewery effluent – the recovery of nutrients from the biomass of activated sludge and high rate algal pond treatment systems. Water Supply 21(5): 1939-1952. https://doi.org/10.2166/ws.2020.256
  8. Taylor RP, Jones CLW, Laing M. 2019. The influence of pH on the sodium removal rates of crops grown in a brewery effluent treatment system. Agricultural Water Management 226 DOI: http://doi.org/10.1016/j.agwat.2019.105813
  9. Robinson G, Caldwell GS, Jones CLW, Stead SM. 2019. The effect of resource quality on the growth of Holothuria scabra during aquaculture waste bioremediation. Aquaculture 499: 101-108. https://doi.org/10.1016/j.aquaculture.2018.09.024
  10. Wu Y, Kaiser H, Jones CLW. 2019. A first study on the effect of dietary soya levels and crystalline isoflavones on growth, gonad development and gonad histology of farmed abalone, Haliotis midae. Aquaculture International 27: 167-193. https://doi.org/10.1007/s10499-018-0315-6
  11. Mabasa NC, Britz PJ, Jones CLW, Nel A. 2018. Effect of graded levels of dietary carbohydrate on growth, feed utilisation and intestinal microbial community structure in dusky kob Argyrosomus japonicus fed a pelleted diet. African Journal of Marine Science. 40(3): 267-277 https://doi.org/10.2989/1814232X.2018.1503969
  12. Taylor RP, Jones CLW, Laing M, Dames J. 2018. The potential use of treated brewery effluent as a water and nutrient source in irrigated crop production. Water Resources and Industry. 19: 47-60 https://doi.org/10.1016/j.wri.2018.02.001
  13. Nel A, Jones CLW, Britz PJ, S Landzela. 2018. The effect of juvenile abalone Haliotis midae (Linnaeus, 1758) weaning diet on gut-bacterial formation. Journal of Shellfish Research 37: 191-197 https://doi.org/10.2983/035.037.0117
  14. Robinson G, MacTavish T, Savage C; Caldwell GS, Jones CLW, Probyn T, Eyre BD, Stead SM. 2018. Carbon amendment stimulates benthic nitrogen cycling during the bioremediation of particulate aquaculture waste. Biogeosciences 15(6): 1863-1878 DOI: 10.5194/bg-15-1863-2018
  15. Adesola AA, Jones CLW, Shipton TA. 2018. Dietary lysine requirement of juvenile dusky kob, Argyrosomus japonicus. Aquaculture Nutrition 24: 673-680. https://doi.org/10.1111/anu.12576
  16. Nel A, Pletschke BI, Jones CLW, Kemp J, Robinson G, Britz PJ. 2017. Effect of kelp Ecklonia maxima inclusion in formulated feed on growth, feed utilisation and gut microbiota of South African abalone Haliotis midae. African Journal of Marine Science 39(2): 183-192. http://dx.doi.org/10.2989/1814232X.2017.1338203
  17. Power SD, Jones CLW. 2016. Anaerobically digested brewery effluent as a medium for hydroponic crop production – The influence of algal ponds and pH. Journal of Cleaner Production 139: 167-174. http://dx.doi.org/10.1016/j.jclepro.2016.07.189
  18. Robinson G, Caldwell GS, Wade M, Free A, Jones CLW, Stead S. 2016. Profiling bacterial communities associated with sediment-based aquaculture bioremediation systems under contrasting redox regimes. Scientific Reports 6: 38850. https://doi.org/10.1038/srep38850
  19. Robinson G, Caldwell GS, Jones CLW, Slater MJ, Stead SM. 2016. Redox stratification drives enhanced growth in a deposit-feeding invertebrate: implications for aquaculture bioremediation. Aquaculture Environmental Interactions 8(1): 1-13

 

Select conference presentations

  1. Abaho I, Jones CLW, Akoll P, Masembe C. 2022. Differential expression analysis of sex genes during pine pollen-induced masculinization of Nile tilapia Oreochromis niloticus. Aquaculture Europe 2022, Rimini, Italy 27-30 September 2022.
  2. Courtois de Visçose, G, Jones CLW, Onomu AJ. 2022. Integration of sea cucumber to abalone production: Low trophic species IMTA. Aquaculture Europe 2022, Rimini, Italy 27-30 September 2022.
  3. Falade A, Brtiz PJ, Jones CLW. 2022. Evaluation of IMTA-produced macroalgae (Ulva lactuca) meal as a dietary ingredient in feed pellets for South African abalone (Haliotis midae). Aquaculture Europe 2022, Rimini, Italy 27-30 September 2022.
  4. Mwagudza P, Jones CLW Macey B. 2022. Effect of processed (biosecure) macroalgae on growth and health of abalone Haliotis midae. Aquaculture Europe 2022, Rimini, Italy 27-30 September 2022.
  5. Senekal HE, Britz PJ, Jones CLW, Slater MJ. 2022. Investigation of the reproductive biology of farmed and wild warty sea cucumber Neostichopus grammatus (Clark). Aquaculture Europe 2022, Rimini, Italy 27-30 September 2022.
  6. Cesler L, Taylor R, Jones CLW. 2022. The influence of aeration, crops and earthworms on constructed wetlands. Aquaculture Association of Southern Africa Conference 2022, Stellenbosch, South Africa, 12-13 July 2022.
  7. Falade A, Britz P, Jones CLW. 2022. Evaluation of biosecure monoculture and imta‐produced macroalgae (Ulva lactuca) meal as dietary ingredient in feed pellets for South African abalone (Haliotis midae). Aquaculture Association of Southern Africa Conference 2022, Stellenbosch, South Africa, 12-13 July 2022.
  8. Jones CLW, Wu Y, Hannon C, Suckow B. 2022. The impact of Aquavitae research on the South African aquaculture industry. Aquaculture Association of Southern Africa Conference 2022, Stellenbosch, South Africa, 12-13 July 2022.
  9. Mabasa NC, Jones CLW, Laing M. 2022. Production of cash-crops and fish while treating brewery effluent in constructed wetlands. Aquaculture Association of Southern Africa Conference 2022, Stellenbosch, South Africa, 12-13 July 2022.
  10. Madlala NP, Jones CLW, Wu A. 2022. Effect of IMTA Gracilaria gracilis on the growth of farmed abalone Haliotis midae. Aquaculture Association of Southern Africa Conference 2022, Stellenbosch, South Africa, 12-13 July 2022.
  11. Mwangudza P, Jones CLW, Macey B. 2022. Assessment of potential biosecurity measures on the inactivation of macroalgae‐transmitted abalone pathogens. Aquaculture Association of Southern Africa Conference 2022, Stellenbosch, South Africa, 12-13 July 2022.
  12. Okong’o V, Omari S, Abaho I, Nyiko M, Masese F Jones CLW. 2022. Analysis of cage aquaculture in lacustrine systems. A case for lake Victoria, Kenya. Aquaculture Association of Southern Africa Conference 2022, Stellenbosch, South Africa, 12-13 July 2022.
  13. Senekal HE, Britz PJ, Jones CLW, Slater MJ. 2022. Investigation of the reproductive biology of farmed and wild warty sea cucumber, Neostichopus grammatus. Aquaculture Association of Southern Africa Conference 2022, Stellenbosch, South Africa, 12-13 July 2022.
  14. Jones CLW, Wu, Y, Weich D. 2021. Developing an IMTA value chain: Sea-based farming of macroalgae and mussel in Saldanha Bay, South Africa. Aquaculture Europe 2021, October 2021.
  15. Courtoisde Viçose G, Jones CLW... 2021. Land based integrated multi-trophic aquaculture (IMTA) of low trophic species: AquaVitae project’s case study. Aquaculture Europe 2020, April 2021.
  16. Engrola S, Antelo LT, Courtoisde Viçose G, Jones CLW, Sampaio LA, Torati LS, Vieira FN. 2021. Circular economy, resource reuse and environmental footprint. Aquaculture Europe 2020, April 2021.
  17. Akoll P, Achieng AO, Jones CLW, Singini W, Mulongaibalu M, Raburu PTO. 2018. Harnessing African capacity for improved training on fisheries and aquaculture in Africa. International Association for Great Lakes Research (IAGLR) 2018, Toronto, USA. 18-22 June 2018.
  18. Jones CLW. 2018. Coming to grips with the gut microbiome of the South African abalone. 10th International Abalone Symposium, Xiamen, China. 8-12 May 2018. p 24.
  19. Dunser SJ, Kaiser H, Jones CLW, Naylor MA. 2018. The influence of stocking density on the behaviour or cultured South African Abalone Halitosis midae. 10th International Abalone Symposium, Xiamen, China. 8-12 May 2018. p 33.
  20. Wright J, Kaiser H, Jones CLW. 2018. Distribution and behaviour of juvenile abalone (Halitosis midae) in tanks in the weaning section of HIK Abalone Hatchery. 10th International Abalone Symposium, Xiamen, China. 8-12 May 2018. P 47.

Last Modified: Mon, 30 Jan 2023 16:39:34 SAST