Work Experience

• Dr.Ranjith L has been serving as Senior Scientist (Agricultural Research Management) in the Division of Research Systems Management, ICAR-NAARM, Hyderabad since June 2025. He belongs to the Agricultural Research Service (ARS) 2010 batch and 94th Foundation Course for Agricultural Research Services (FOCARS) of ICAR. On successful completion as Scientist (Trainee) at ICAR-NAARM, he joined ICAR-CMFRI, Kochi.
• He has served as Senior Scientist, Marine Biodiversity and Environment Management Division, Regional Station of ICAR-Central Marine Fisheries Research Institute (CMFRI), Thoothukudi since 2011. He contributed 11 externally funded projects from various agencies, including ICAR-NICRA, FAO-BOBLME, NABARD, DBT-MoS&T, MoES-CMLRE, MPEDA-MoC&I, PMMSY-DoF, ACOPTAX-MoEF&CC, and 18 institutional projects related to marine fisheries and mariculture. He has undertaken research studies on various aspects, such as aquatic environment assessment and fisheries resource management, coastal and marine biodiversity and conservation, ecosystem-based biodiversity loss and economic valuation, remote sensing and climate change, climate smart villages, and Integrated Multi-tropic Aquaculture.
• He has published 69 research papers in international (30) and national (39) peer-reviewed journals, three books/monographs, two policy papers, nine book chapters, seven training manuals, and 48 popular/technical articles. He guided four PhD students and 12 master’s students from different universities of Tamil Nadu, Kerala, and Maharashtra. He also conducted several trainings/workshops/awareness programs/seminars and published posts/leaflets. As coordinators, conveners, team members, or resource experts delivered lectures and imparted skill development programs to translate research results into practical recommendations for farmers and stakeholders.
• He has Received Best Performer Award (2025) in the NABARD 44th Foundation Day for successful implementation of ICAR-CMFRI-FSPF project of NABARD-RO, Chennai; Prof. N. R. Menon Memorial Award (2019) as team member by Marine Biological Association of India, Kochi; Certificate of Merit (2011) as Grade A in the 94th FOCARS at ICAR-NAARM, Hyderabad; Alltech Young Scientist (Regional Winner India-2010) in the Global graduate competition by Alltech; Dr. Hiralal Chaudhuri Gold Medal (2007-2009) for first position in the MFSc (Aquatic Environment Management) of ICAR-CIFE, Mumbai, and awarded ICAR Fellowships for pursuing the MFSc (2007-2009) & PhD (2009-2012) program in ICAR-CIFE, Mumbai.

Areas of Interest:

• Research Management, Research Intelligence, Law and Policy related to Biodiversity and Natural Resource, Scientometrics, Ecosystem based Conservation and Management, Vulnerability Assessment and Climate Change, Aquatic Environment and Fisheries Resource Management.

Select publications during the last five years

1. Ranjith, L., Saravanan, R., Ramkumar, S., Kalidas, C., Vinothkumar, R., Linga Prabu, D., Kavitha, M., Mathan Babu, A., Kalaibharathi, R. & Asha, P. S. (2025). Symbiosis in Sea Anemones: A Few Case Reports Along the Bay of Bengal Large Marine Ecosystem. Marine Ecology, 46(1), e12855 (NAAS Rating: 7.8/Impact factor: 1.8).
2. Sharumathi, M., Jayakumar, N., Durairaja, R., Paul, J. J., Sudhan, C., Kalaiarasan, M. & Ranjith, L. (2025). Spatio-temporal variations in the diversity and occurrence of lutjanid fish species (Family: Lutjanidae) of the Gulf of Mannar, Southeast coast of India. Marine Biodiversity, 55(3), 1-17 (NAAS Rating: 7.5/Impact factor: 1.5).
3. Neethu, K.P., Sobhana, K.S., Babu, K.R., Varghese, E., Ranjith, L., Jasmine, S., Joshi, K.K. and George, G., 2025).Optimizing α-amylase production by an extremely halophilic archaeon Haloferax mucosum MS1. 4, using response surface methodology. Journal of Microbiological Methods, p.107136 (NAAS Rating: 7.7/Impact factor: 1.9).
4. Ranjith, L., Saravanan, R., Kalidas, C., Rajendran, P., Babu, A. M., Asha, P. S., & Joshi, K. K. (2024). Occurrence of the Non-native Mauve Stinger, Pelagia cf. noctiluca, in Coastal Waters off Cape Comorin, Southern Bay of Bengal. Journal of Coastal Research, 40(6), 1103-1110 (NAAS Rating: 7.1/Impact factor: 1.1).
5. Rajkumar, M., Pillai, S. L., Raju, S., Ranjith, L., Mookaiah, K., & Kizhakudan, S. J. (2024). Fishery status of the green tiger shrimp (Penaeus semisulcatus) in Palk Bay, in the southeast coast of India: Local and global perspectives. Ocean & Coastal Management, 258, 107395 (NAAS Rating: 10.8/Impact factor: 5.4).
6. Babu, A.M., Ranjith, L., Sudhan, C. and Kalidass, S. (2024). Spatiotemporal analysis in brown seaweed diversity and abundance at selected coastal locations on the Southern coast of Tamil Nadu, India: A way forward for conservation and sustainable utilization. Regional Studies in Marine Science, 75, p.103541. (NAAS Rating: 8.1/Impact factor: 2.4).
7. Alvin, A., Sreenath, K. R., Ranjith, L. and Aju, K.R. (2024). Recovery of a tropical coral reef in the aftermath of a cyclone: insights into post disturbance dynamics and conservation strategies. Bulletin of Marine Science 100 (3). pp. 483-502. (NAAS Rating: 7.5/Impact factor: 1.6).
8. Ameri, S., Pappurajam, L., Labeeb, K.A., Ranjith, L., and Ayyathurai, K.P., 2023. The role of the Sunda shelf biogeographic barrier in the cryptic differentiation of Conus litteratus (Gastropoda: Conidae) across the Indo-Pacific region. PeerJ, 11, p.e15534. (NAAS Rating: 8.3/Impact factor: 2.7).
9. Ranjith, L., Edward, L. L., Kalidas, C., Prabu, D. L., Babu, A. M., Karuppasamy, K., & Zacharia, P. U. (2022). Potential Fishing Zones Persistence along Southern Tamil Nadu: A Case Study. Indian Journal of Ecology, 49(6), 2306-2311(NAAS Rating: 5.8).
10. Kavitha, M., Sasikumar, G., Iyadurai, J., Ranjith, L. and Felix, J., 2022. Insight on the reproductive biology of small striped cuttlefish, Sepia prabahari in Gulf of Mannar, Indian Ocean and recommendation for a minimum legal size. Fisheries Research, 248, p.106227. (NAAS Rating: 8.2/Impact factor: 2.3).
11. Prabu, D. L., Kalidas, C., Ranjith, L., Ebeneezar, S., Kavitha, M., Zacharia, P. U., Vijayagopal, P and Mathan Babu, A & Muniswaran, B. R. (2023). Effect of water temperature on growth, blood biochemistry, digestive, metabolic enzymology, and antioxidant defences of Trachinotus blochii Aquaculture International, 31(3), 1499-1522 (NAAS Rating: 8.2/Impact factor: 2.3).
12. .Ranjith, L., Kalidas, C., Saravanan, R., Jagadis, I., Linga Prabu, D., Kavitha, M., Mathan Babu, A., Joshi, K., K., and Manojkumar, P.P. (2021) Observation on the morphological and gonadal aspects of Cladonema radiatum (Class: Hydrozoa) from Tuticorin Bay, Southeast coast of India. Zootaxa, 4990 (3). pp. 591-595. (NAAS Rating: 6.9/Impact factor: 0.9).
13. Laxmilatha, P., Ameri, S., Labeeb, K.A., Ranjith, L. and Kathirvelpandian, A., 2021. A new species of cone snail, Conus laccadivensis nov.:(Gastropoda: Conidae) from the Islands of Lakshadweep Archipelago. Regional Studies in Marine Science, 44, p.101783 (NAAS Rating: 8.1/Impact factor: 2.4).
14. Ameri, S., Laxmilatha, P., Labeeb, K. A., Ranjith, L., & Pandian A. K. (2021). Mitochondrial marker–based analyses provide new insights into role of coral reef ecosystems in molluscan speciation. Organisms Diversity & Evolution, 1-10 (NAAS Rating: 7.9/Impact factor: 1.9).
15. Ranjith, L., Shukla, S. P., Vinod, K., Ramkumar, S., Amarnath., Mathan, B., George, R., M., Chakraborty, S., K., and Purushothaman, C. S. (2020). Destruction of non-edible biota due to bottom trawling: The ecological and conservation issues in a global context. Ocean and Coastal Management. 467, 3-27. (NAAS Rating: 10.8/Impact factor: 5.4)

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