| Designation | Principal Scientist |
| Discipline | Aquaculture |
| Division | Finfish Culture Division |
| Specialization | Finfish Breeding, Larval Rearing and Cage Farming |
| Phone | +91- 044 – 24618817 Ext: 409 |
| jeyakumar.r@icar.gov.in | |
| Google Scholar | Click Here |
| Research Gate | Click Here |
- Brief Profile
- Research areas
- Recognition (National & International)
- Best 5 Publications during the Career
- Best 3 Publications during the last 3 years
Dr. Rengarajan Jayakumar is a Principal Scientist under the discipline Aquaculture in Fish Culture Division at ICAR-Central Institute of Brackishwater Aquaculture Chennai. He earned M. Sc. degree in Zoology during 1988 and secured first rank in the Bharathidasan University Tiruchirappalli. He was awarded with Ph.D. degree in Zoology by the University of Madras during 1996. After that, for a brief period he worked as a Post-Doctoral Fellow in MCD Biology, Boulder Campus, University of Colorado, USA. Then he joined as Assistant Director (Aquaculture) during 2001 in the Marine Products Export Development Authority (MPEDA), Ministry of Commerce and Industry, Government of India and served in different maritime states. He served as Senior Executive (Technical) on deputation basis during 2006-2011 in the National Fisheries Development Board (NFDB), Hyderabad, Department of Fisheries, Ministry of Fisheries, Animal Husbandry & Dairying, Govt. of India. During 2011, he joined as Senior Scientist (Aquaculture) at the Mandapam Regional Centre of ICAR – Central Marine Fisheries Research Institute (CMFRI) and contributed in the technology development for breeding, seed production, sea cage farming and coastal pond farming of high value marine finfishes viz., Cobia (Rachycentron canadum) and Silver Pompano (Trachinotus blochii). He was also associated in the seed production of commercially important marine ornamental fishes, popularization of seaweed farming and sea cage farming. To replenish the stock of green tiger shrimp Penaeus semisulcatus in Gulf of Mannar and Palk Bay, carried out seed production and sea ranching from 2018 to 2021. Prior to government assignments, he also worked in private shrimp farms, shrimp hatchery and shrimp processing units in Tamil Nadu and Andhra Pradesh.
- Broodstock development, breeding and seed production of high value marine finfishes
- Breeding and seed production of commercially important ornamental fishes
- Culture of live feeds viz., phytoplankton and zooplankton suitable for marine fish larval rearing
- Technology dissemination of cage farming and coastal pond farming
- Integrated Multi Trophic Aquaculture (IMTA)
- Seaweed farming
- Post-Doctoral Fellowship, MCD Biology, University of Colorado, Boulder, CO, USA.
- Higher Educational Research Fellowship (British Council), U.K.
- Post-Doctoral Research Fellowship (DBT), INDIA.
- CSIR Senior Research Fellowship
- Indian Medical Association Award
- Jawaharlal Nehru Memorial Fund Award
- Anikuttan, K.K., Jayakumar, R., Suresh Babu, P.P., Abdul Nazar, A.K., Tamilmani, G., Sakthivel, M., Sankar, M., Krishnaveni, N., Tinto Thomas, Rao, G.H., Anuraj A., Boby Ignatius and Imelda Joseph. (2021). Assessment of compensatory growth in stunted fingerlings of Snubnose pompano, Trachinotus blochii (Lacepede, 1801), in marine conditions. Aquaculture Research (52) 403-409.
- Sakthivel, M., G. Tamilmani, A.K.A. Nazar, R. Jayakumar, M. Sankar, P. Rameshkumar, K.K. Anikuttan, A.K. Samal, M. Anbarasu and G. Gopakumar. 2019. Genetic variability of a small captive population of the cobia (Rachycentron canadum) through pedigree analyses. Aquaculture 498: 435-443.
- Jayakumar, R., M. Sakthivel, A. K. Abdul Nazar, G. Tamilmani, M. Anbarasu, V. Balamurugan, R. Thiagu, S. Sirajudeen and G. Gopakumar. 2018. Impact of high temperature and light intensity on growth and metamorphosis of hatchery-reared silver pompano Trachinotus blochii (Lacepede, 1801) larvae. Indian Journal of Fisheries 65 (2): 133-137.
- Jayakumar, R, Abdul Nazar, A K, Tamilmani, G, Sakthivel, M, Kalidas, C, Ramesh Kumar, P, Rao, G Hanumanta and Gopakumar, G. (2014). Evaluation of growth and production performance of hatchery produced silver pompano Trachinotus blochii (Lacépède, 1801) fingerlings under brackishwater pond farming in India. Indian Journal of Fisheries, 61 (3):58-62.
- Abdul Nazar, A. K., Jayakumar, R., Tamilmani, G., Sakthivel, M., Kalidas, C., Ramesh Kumar, P., Anbarasu, M., Sirajudeen, S., Balamurugan, V., Jayasingh, M. and Gopakumar, G. (2012). Larviculture and seed production of the silver pompano, Trachinotus blochii (Lacepede, 1801) for the first time in India. Indian Journal of Fisheries, 59 (3) 83-87.
- Alexpandi, R., Abirami, G., Satish, L., Swasthikka, R.P., Krishnaveni, N., Jayakumar, R., Pandian, S.K., and Ravi, A.V. (2021). Tocopherol and phytol possess anti-quorum sensing mediated anti-infective behavior against Vibrio campbellii in aquaculture: An in vitro and in vivo study. Microbial Pathogenesis (161) 105221 doi: 10.1016/j.micpath.2021.
- Rameshkumar, P., Sakthivel, M., Tamilmani,G., Jayakumar, R., Abdul Nazar, A,K., Sankar, M., Anikuttan, K.K., Angela Mercy, A., Krishnaveni, N. and Ravikumar, T.T. (2021). First report of intersex in Cobia, Rachycentron canadum reared in Gulf of Mannar, India-A case study. Aquaculture Reports (19): 100587, 1-5.
- Sakthivel, M., G. Tamilmani, A.K.A. Nazar, R. Jayakumar, M. Sankar, P. Rameshkumar, K.K. Anikuttan, A.K. Samal, M. Anbarasu and G. Gopakumar. 2019. Genetic variability of a small captive population of the cobia (Rachycentron canadum) through pedigree analyses. Aquaculture 498: 435-443.