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Mr. Jayasimhan Praveenraj
ICAR-Central Island Agricultural Research Institute

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Research Keywords & Expertise

0 Parasitology
0 Helminth
0 Ectoparasite
0 Cestodes
0 Fish health and diseases

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Short Biography

I am researcher in the ICAR-Central Island Agricultural Research Institute, Port Blair. I am working on a diverse field in fisheries science like in the field of fish health management, fish parasitology, bacteriology and fish taxonomy.

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Journal article
Published: 15 July 2021 in Viruses
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The present study was intended to screen the wild crustaceans for co-infection with Infectious Hypodermal and Hematopoietic Necrosis Virus (IHHNV) and White Spot Syndrome Virus (WSSV) in Andaman and Nicobar Archipelago, India. We screened a total of 607 shrimp and 110 crab samples using a specific polymerase chain reaction, and out of them, 82 shrimps (13.5%) and 5 (4.5%) crabs were found positive for co-infection of IHHNV and WSSV. A higher rate of co-infection was observed in Penaeus monodon and Scylla serrata than other shrimp and crab species. The nucleotide sequences of IHHNV and WSSV obtained from crab in this present study exhibited very high sequence identity with their counterparts retrieved from various countries. Histopathological analysis of the infected shrimp gill sections further confirmed the eosinophilic intra-nuclear cowdry type A inclusion bodies and basophilic intra-nuclear inclusion bodies characteristics of IHHNV and WSSV infections, respectively. The present study serves as the first report on co-infection of WSSV and IHHNV in Andaman and Nicobar Archipelago, India and accentuates the critical need for continuous monitoring of wild crustaceans and appropriate biosecurity measures for brackishwater aquaculture.

ACS Style

Kandasamy Saravanan; Jayasimhan Praveenraj; Rajendran Kiruba-Sankar; Varsha Devi; Utpal Biswas; Thangaraj Kumar; Arun Sudhagar; Mansour El-Matbouli; Gokhlesh Kumar. Co-Infection of Infectious Hypodermal and Hematopoietic Necrosis Virus (IHHNV) and White Spot Syndrome Virus (WSSV) in the Wild Crustaceans of Andaman and Nicobar Archipelago, India. Viruses 2021, 13, 1378 .

AMA Style

Kandasamy Saravanan, Jayasimhan Praveenraj, Rajendran Kiruba-Sankar, Varsha Devi, Utpal Biswas, Thangaraj Kumar, Arun Sudhagar, Mansour El-Matbouli, Gokhlesh Kumar. Co-Infection of Infectious Hypodermal and Hematopoietic Necrosis Virus (IHHNV) and White Spot Syndrome Virus (WSSV) in the Wild Crustaceans of Andaman and Nicobar Archipelago, India. Viruses. 2021; 13 (7):1378.

Chicago/Turabian Style

Kandasamy Saravanan; Jayasimhan Praveenraj; Rajendran Kiruba-Sankar; Varsha Devi; Utpal Biswas; Thangaraj Kumar; Arun Sudhagar; Mansour El-Matbouli; Gokhlesh Kumar. 2021. "Co-Infection of Infectious Hypodermal and Hematopoietic Necrosis Virus (IHHNV) and White Spot Syndrome Virus (WSSV) in the Wild Crustaceans of Andaman and Nicobar Archipelago, India." Viruses 13, no. 7: 1378.

Journal article
Published: 26 October 2020 in Journal of Threatened Taxa
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This study provides the first record of Parexocoetus mento (Valenciennes, 1847) from the waters off Andaman Islands which was previously known to be distributed in the Red Sea; Indo-West Pacific: eastern Africa east to the Marshall Islands and Fiji, north to southern Japan, south to northern Australia; Mediterranean Sea (Red Sea immigrant). This report suggests its extension of geographical distribution and addition of one more species to the biodiversity of the Andaman Islands. Morphometric and morphological data confirmed that the specimens examined from the waters off Andamans Islands are P. mento which is diagnosed from its closely linked relative P. brachypterus (Richardson, 1846) by having the higher dorsal fin reaching up to the origin of upper caudal fin lobe, when depressed vs. extending well beyond the lobe in P. brachypterus, predorsal scales 20 to 24 (vs. 16–20), and dorsal and anal fin with 12–14 rays (vs. 10–11), respectively, in P. mento.

ACS Style

Y. Gladston; S.M. Ajina; J. Praveenraj; R. Kiruba-Sankar; K.K. Bineesh; S. Dam Roy. First record of African Sailfin Flying Fish Parexocoetus mento (Valenciennes, 1847) (Beloniformes: Exocoetidae), from the waters off Andaman Islands, India. Journal of Threatened Taxa 2020, 12, 17032 -17035.

AMA Style

Y. Gladston, S.M. Ajina, J. Praveenraj, R. Kiruba-Sankar, K.K. Bineesh, S. Dam Roy. First record of African Sailfin Flying Fish Parexocoetus mento (Valenciennes, 1847) (Beloniformes: Exocoetidae), from the waters off Andaman Islands, India. Journal of Threatened Taxa. 2020; 12 (14):17032-17035.

Chicago/Turabian Style

Y. Gladston; S.M. Ajina; J. Praveenraj; R. Kiruba-Sankar; K.K. Bineesh; S. Dam Roy. 2020. "First record of African Sailfin Flying Fish Parexocoetus mento (Valenciennes, 1847) (Beloniformes: Exocoetidae), from the waters off Andaman Islands, India." Journal of Threatened Taxa 12, no. 14: 17032-17035.

Journal article
Published: 26 January 2019 in Journal of Threatened Taxa
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The Nilgiri Mystus Hemibagrus punctatus (Jerdon, 1849), a Critically Endangered catfish endemic to the Western Ghats of India, is recorded for the first time from Stanley Reservoir in Tamil Nadu, India. An account of the morphometrics of this species, along with notes on its habitat and threats, is provided.

ACS Style

Praveenraj Jayasimhan; Moulitharan Nallathambi; M. P. Goutham-Bharathi. First report of the catfish Nilgiri Mystus Hemibagrus punctatus (Jerdon, 1849) (Bagridae) from Stanley Reservoir, Tamil Nadu, India. Journal of Threatened Taxa 2019, 11, 13175 -13179.

AMA Style

Praveenraj Jayasimhan, Moulitharan Nallathambi, M. P. Goutham-Bharathi. First report of the catfish Nilgiri Mystus Hemibagrus punctatus (Jerdon, 1849) (Bagridae) from Stanley Reservoir, Tamil Nadu, India. Journal of Threatened Taxa. 2019; 11 (1):13175-13179.

Chicago/Turabian Style

Praveenraj Jayasimhan; Moulitharan Nallathambi; M. P. Goutham-Bharathi. 2019. "First report of the catfish Nilgiri Mystus Hemibagrus punctatus (Jerdon, 1849) (Bagridae) from Stanley Reservoir, Tamil Nadu, India." Journal of Threatened Taxa 11, no. 1: 13175-13179.

Journal article
Published: 26 October 2017 in Journal of Threatened Taxa
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Redigobius oyensi (de Beaufort, 1913), a freshwater Data Deficient goby, is reported for the first time from Car Nicobar Island, Andaman & Nicobar archipelago. A short note on its habitat and co-occurring species are discussed in this study.

ACS Style

J. Praveenraj; R. Kiruba-Sankar; Lohith Kumar; J. Raymond Jani Angel; S. Dam Roy. A first report of Redigobius oyensi (de Beaufort, 1913) (Teleostei: Gobionellinae) from Car Nicobar Island, India. Journal of Threatened Taxa 2017, 9, 10853 .

AMA Style

J. Praveenraj, R. Kiruba-Sankar, Lohith Kumar, J. Raymond Jani Angel, S. Dam Roy. A first report of Redigobius oyensi (de Beaufort, 1913) (Teleostei: Gobionellinae) from Car Nicobar Island, India. Journal of Threatened Taxa. 2017; 9 (10):10853.

Chicago/Turabian Style

J. Praveenraj; R. Kiruba-Sankar; Lohith Kumar; J. Raymond Jani Angel; S. Dam Roy. 2017. "A first report of Redigobius oyensi (de Beaufort, 1913) (Teleostei: Gobionellinae) from Car Nicobar Island, India." Journal of Threatened Taxa 9, no. 10: 10853.