Prakash Sanjeevi

Prakash Sanjeevi
Sathyabama Institute of Science and Technology | S.U · Centre for Climate Change Studies

Ph.D Marine Biology

About

62
Publications
44,867
Reads
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602
Citations
Introduction
Interested in taxonomy, reproductive physiology and evolutionary ecology of coral reef fishes and caridean shrimps of Indo-Pacific. Please visit my personal webpage for more details: https://prakashs1311.wixsite.com/mbeerlab-in
Additional affiliations
December 2008 - September 2010
National Institute of Oceanography
Position
  • Project Assistant - II
August 2016 - present
Clemson University
Position
  • Fulbright-Nehru Post Doctoral Research Fellow
May 2014 - August 2016
Sathyabama Institute of Science and Technology
Position
  • Scientist C
Education
November 2010 - August 2014
Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University
Field of study
  • Marine ornamental shrimps: Taxonomy, Reproductive biology and Brood stock nutrition
July 2006 - May 2008
Bharathidasan University
Field of study
  • MARINE SCIENCE

Publications

Publications (62)
Article
Full-text available
Periclimenes pittisp. nov. is described from the Pitti Islet, Lakshadweep, India. The new species can be distinguished from its congener P. affinis (Zehntner, 1894) by the number of rostrum teeth, presence of single spine on the distal margin of third segment of antennular peduncle, and second pair of pereiopods long and robust with 3 distinct teet...
Article
Full-text available
We tested the hypothesis that the Hainan’s squat shrimp Thor hainanensisXu & Li, 2014 undergoes a sex change and displays protandric hermaphroditism, a well-known feature from other congeners (T. dicaprioAnker & Baeza, 2021 and T. amboinensis (De Man, 1888)). We used morphological traits indicative of male function to categorize shrimp as prehensil...
Article
Full-text available
In the present study, we described a new species of octocoral Dendronephthya johnsoniisp. nov. from the Covelong coast, Chennai, India. The new species is compared with the congeners D. costatorubra (Henderson 1909), D. cervicornis (Wright and Studer 1889), D. hemprichi (Klunzinger 1877) and D. kluzingeri (Studer 1888) found in the Indo-Pacific reg...
Article
Full-text available
In this study, we report, for the first time, mitochondrial genome of Narcine timlei (Bloch & Schneider, 1801) and its phylogenetic relationships within the order Torpediniformes. Narcine timlei is a medium-sized ray that occurs in nearshore waters of the Indo-Pacific and is classified as “‘vulnerable” category on the IUCN Red List. The mitogenome...
Article
Full-text available
In the present study, we have reported for the first time, occurrence of Atrina hystrix (Hanley, 1858) from India. Earlier, the distribution range for A. hystrix was limited to Indo-West Pacific areas of the Philippines, Indonesia, Thailand, and New Caledo-nia. A single specimen was collected from Neelankarai artisanal fishing village, Chennai, Ind...
Article
The genus Gracilaria is an economically important group of seaweeds as several species are utilized for various products such as agar, used in medicines, human diets, and poultry feed. Hence, it is imperative to understand their response to predicted ocean acidification conditions. In the present work, we have evaluated the response of Gracilaria f...
Article
Full-text available
Phenotypic dissimilarity does not always evolve in concert with genetic diversification, resulting in cryptic species complexes that represent a major challenge for documenting actual biodiversity. Resolving these complexes is of paramount importance. Herein, we tested whether Saron marmoratus (Olivier, 1811) and S. neglectus de Man, 1902, two cora...
Article
A new species of marine amphipod, Protohyale covelongensis sp. nov., is described from India. The taxon is fully described and illustrated with which it could be easily identified morphologically. Protohyale covelongensis sp. nov. has a specific shape of the basis of pereopod 7 in the mature male, forming a distinct axe-shaped flange on its anterio...
Article
The world’s coral reef ecosystems are built by a symbiotic relationship between reef corals and the dinoflagellates of the family Symbiodiniaceae. Climate change has already impacted the world’s coral reef ecosystems. Some corals can survive in extreme environmental conditions through the acquisition of stress-tolerant endosymbionts. In the present...
Article
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Seaweeds are well known for having a wealth of nutritional benefits and providing ecological support to associated fauna. Seasonality influences the biochemical characteristics, affecting their ecological and economic values. In the present study, we evaluated pigments, primary and secondary metabolites, minerals, and antioxidant properties of gree...
Article
A new species of the freshwater shrimp of the genus Macrobrachium irwini sp. nov., is described from the Nandhini River near Kateel, Karnataka region of Western Ghats, India. 11 specimens of Macrobrachium irwini sp. nov. were collected from Nandhini river running through a secondary forest with heavily vegetated banks. The morphological analyses re...
Preprint
Full-text available
Narcine timlei (Bloch & Schneider, 1801) is a medium-sized ray known to occur in inshore and offshore waters of the Indo-Pacific region, classified under the ‘vulnerable’ category of the IUCN Red List. This study reports, for the first time, the mitochondrial genome of N. timlei (average coverage ~ 60X) assembled from short Illumina reads 150 bp pa...
Preprint
Full-text available
In this study, we report, for the first time, mitochondrial genome of Narcine timlei (Bloch & Schneider, 1801) and its phylogenetic relationships within the order Torpediniformes. Narcine timlei is a medium-sized ray that occurs in nearshore waters of the Indo-Pacific, classified as a ‘vulnerable’ category on the IUCN Red List. The mitogenome is as...
Article
Historically, Lysmata vittata has been reported with a near global non-polar distribution. Early studies reported a wide morphological variation in this species, which served as a basis for further synonymization of at least four species. Herein, we investigated the species diversity within L. vittata complex and tested whether L. rauli and L. durb...
Article
Full-text available
Four additional records of crinoid associated crustacean decapods Laomenes nudirostris (AJ Bruce, 1968), Periclimenes affinis (Zehntner 1894), Allogalathea babai Cabezas et al. 2011 and Aliaporcellana pygmaea (de Man, 1902) have been documented from the selected Islands of the Lakshadweep archipelago. All four species were recorded for the first ti...
Article
In this study, the physiology of symbiotic ‘peacock-tail’ shrimp Ancylocaris brevicarpalis and its host ‘Haddon's carpet’ sea anemone Stichodactyla haddoni were tested under lowered pH (7.7) and control (8.1) conditions. The biochemical responses such as digestive enzyme (AP), organic acids (lactate and succinate), oxidative damages (MDA), antioxid...
Article
Full-text available
Peppermint shrimp resembling Lysmata vittata Stimpson, 1860, a species native to the Indo-West Pacific, were found in the lower Chesapeake Bay and adjacent coastal embayments in 2013, representing the first recorded introduction of this species in the northwestern Atlantic. Conflicting morphological descriptions, inconsistent morphological terminol...
Article
Covelong coast situated in north Tamil Nadu has a unique habitat comprising of intertidal rocky and sandy areas. Located near the mouth of Muttukadu brackish water, Covelong is considered as one of the sites for artificial reef deployment by the state government. With all these coastal habitats, it can be assumed that this area supports remarkably...
Article
Full-text available
The present study provides taxonomical information on a collection of some marine brachyuran crabs from the Gulf of Mannar of Tamil Nadu. The specimens were collected from fisheries bycatch at Mandapam fishing harbor located in the Gulf of Mannar during July 2019 to March 2020. A total of 18 species (15 genera, 8 families) of brachyuran crabs were...
Article
The sequestration of elevated atmospheric CO2 levels in seawater results in increasing acidification of oceans and it is unclear what the consequences of this will be on seaweed ecophysiology and ecological services they provide in the coastal ecosystem. In the present study, we examined the physiological and biochemical response of intertidal gree...
Article
Full-text available
Porites coral colonies at Olaikuda reef, Palk Bay region was observed with pink spot and covered with mucus. Close examination of these spots revealed the presence of polychaete tubeworm and vermitid snail. The polychaete worm made aberrant growth with pink spots and this would change the growth pattern or morphology of coral colonies. In addition...
Poster
The poster has the common intertidal diversity of Covelong (Kovalam), Chennai. Covelong (Kovalam ) is located 40 km south of Chennai on the east coast road en route to Mahabalipuram. Covelong coast has sandy and rocky intertidal areas harboring diverse life forms. The intertidal rocks are mostly covered with seaweeds mainly green algae namely, Ulv...
Article
The peacock-tail shrimp Ancylocaris brevicarpalis Schenkel, 1902, is an obligate symbiont of sea anemones and well known for its remarkable colouration. Yet, very little information is available about its population structure and life-history traits, including reproductive parameters (fecundity, embryo volume and reproductive output). A total of 57...
Article
The present study was designed to investigate the efficiency of lipid‐enriched brood stock diets on the reproductive performance, such as fecundity, egg volume, fatty acid profile of newly extruded (stage 1) embryos and the starvation threshold of the newly hatched larvae of the marine ornamental ‘hinge‐beak’ shrimp Rhynchocinetes durbanensis Gordo...
Article
Full-text available
A new species of the genus Tetrastemma Ehrenberg, 1831, T. freyae sp. nov., is described and illustrated from Hawaii and India. The description is based on light microscopy examination of the external and internal morphology, as well as on two gene markers (cytochrome c oxidase subunit I and histone H3 DNA).
Article
Full-text available
Five adult specimens of leucosiid crab Seulocia vittata (Stimpson, 1858) were recently collected off the coast of Palk Bay, southern India. Typical morphological examination revealed the presence of two colour patterns: grey and red. Interestingly, molecular analysis based on the barcoding gene cytochrome oxidase sub unit I (COI) revealed that both...
Article
Decapod crustaceans symbiotic with echinoderms (sea stars, brittle stars, feather stars, basket stars, sea cucumbers, and sea urchins) possess remarkable diversification in the Indo-Pacific. In the present study, seven species of decapod crustaceans symbiotic with crinoids are recorded based on collections from selected Islands (Agatti, Amini, Bang...
Article
Full-text available
Mass mortality of fishes was reported at the Adyar estuary, South India, during November 2017. The probable reasons for fish mortality are analyzed in this paper. Critical assessments on water quality parameters including the metal concentrations, nutrients, and his-tology of gills and liver of fish (Mugil cephalus) isolated from the impact zone we...
Article
Genetic diversification is not always correlated with phenotypic dissimilarity, resulting in cryptic species complexes that pose a major challenge for biodiversity cataloguing. Resolving these complexes is of utmost importance. Herein, we tested whether Lysmata wurdemanni, a shrimp distributed over three contiguous biogeographical provinces (Virgin...
Article
Urocaridella degravei n. sp. is described from Papua New Guinea. The new species can be distinguished from all other congeners by the number of teeth and length of the rostrum, the length of the stylocerite relative to the basal segment of the antennular peduncle, the length of the carpus in the first and second pereiopods, and the length of the pr...
Article
Full-text available
Knowledge of marine host–parasite relationships has been increasing, but little is known about the reproductive strategies of the parasites. Theoretically, parasitic crustaceans inhabiting relatively small and scarce hosts should be monogamous. Parasites are also expected to exhibit higher reproductive performance (RP) than their free-living relati...
Article
new species of peppermint shrimp, Lysmata baueri n. sp., is described based on a single specimen from the eastern Gulf of Mexico. The new species can be distinguished from other morphologically similar species of Lysmata Risso, 1816 by the number of teeth, length and shape of the rostrum, the length of the antennular peduncle relative to the scapho...
Article
Full-text available
The present study was performed to identify the tail rot disease causing bacterium in marine ornamental fish, Amphiprion sebae. Bacteria were isolated from the infected immune organs and tail region of A. sebae. Five different bacterial isolates (S1-S5) with different shape, size and colour were chosen for the infection study. The isolated strains...
Preprint
Full-text available
Global climate change is transforming life on earth, causing widespread effects on all ecosystems. Among marine ecosystems, estuaries are considered as nursery grounds for marine and fresh water species. M. rosenbergii , a euryhaline species, migrate to the estuaries for breeding and spawning. The subsequent larval rearing takes place by experienci...
Article
Full-text available
Little is known about the biology of Indo-West Pacific ornamental crustaceans, including the peacock-tail shrimp Periclimenes brevicarpalis (Schenkel, 1902) (Palaemonidae Rafinesque, 1815), a species that is highly valued by aquarists and marine photographers. We provide information about gender expression and sexual dimorphism in P. brevicarpalis....
Article
Full-text available
The collection of marine taxa for the aquarium trade continues to demand live animals be extracted from reefs, but in doing so, offers economic benefits for local communities. To improve our understanding of the status of marine aquariumtrade in India, information on harvested species and their volume was gathered at the major collection hubs (Tuti...
Article
Full-text available
Marine ornamental shrimps found in tropical coral reef waters are widely recognized for the aquarium trade. Our survey of ornamental shrimps in the Gulf of Mannar, Tamil Nadu (India) has found three species, which we identify as Stenopus hispidus Olivier, 1811, Lysmata debelius Bruce, 1983, and L. amboinensis De Man, 1888, based on morphology and c...
Article
Full-text available
The present study tests hypotheses about sexual dimorphism in body size and morphology versus differential mating behaviours of three male ontogenetic stages (typus, intermedius and robustus morphotypes) of the hingebeak shrimp Rhynchocinetes durbanensis Gordon using canonical discriminant analysis. There is strong sexual dimorphism in this species...
Article
Full-text available
Lined wrasse Anampses lineatus Randall was recorded off the coast of Tuticorin (Gulf of Mannar), Tamil Nadu, India for the first time. It is easily distinguished by the presence of pale longitudinal lines on the body following scale rows. Broad pale white and black color patch at the base of caudal fin is distinct. Morphological description of A. l...
Article
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Objective: To investigate the cause of mortality of Maldive's clownfish, Amphiprion nigripes during the culture period in ornamental fish hatchery, Agatti Island, Lakshadweep archipelago using molecular techniques. Methods: During cultured period august 2010 the fishes were died with skin hemorrhages. Bacteria were isolated from the infected parts...
Article
Full-text available
Two goby fishes Cryptocentrus cyanotaenia Bleeker, 1853 and Istigobius diadema Steindachner 1877 were collected from the Tuticorin and Mandapam coastal waters of Tamilnadu, India. C. cyanotaenia is well distinguished by the presence of grey color body with 9 narrow white bars; blue lines and spots with markings on the head and snout; yellow margins...
Article
Full-text available
Detailed analyses on morphometry (expressed as % standard length and % head length), meristic characters and mitochondrial barcode region sequence of the sharp tail sunfish Masturus lanceolatus Lienard, 1840 have made to confirm the species identity. Further, investigations on phylogenetic relationships between species of the Molidae family have be...
Article
Full-text available
Although among the less conspicuous members of the tropical shallow reef fauna, the caridean shrimps are not less abundant. Much scope for further study on the marine carideans of Indian waters still exists and many species must certainly remain to be discovered. Although, the recent checklist on prawn fauna of Indian waters reports 285 species of...
Article
Full-text available
The marine aquarium trade is a billion dollar business that may sustain continued growth in the coming years. In the past decade, there has been a worldwide increase in the popularity of reef tanks, which has led to an increased demand for marine ornamental organisms (Wood 2001; Green 2003). In contrast to the freshwater ornamental species, most ma...
Article
Full-text available
Symbiotic polychaete Gastrolepidia clavigera Schmarda (Phyllodocida: Polynoidae) has been documented based on the specimen collected from the intertidal area of Agatti island, Lakshadweep, India. G. clavigera is found to be associated with the variety of holothurians such as Stichopus chloronotus, Holothuria atra and Holothuria sp. The percentage o...
Chapter
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Gujarat's coastline supports a large human population that is dependent on the rich coastal and marine resources and ecosystem services, which play a significant role in economic growth. These resources provides significant benefits to the coastal communities in terms of fisheries and tourism and supports their livelihoods. Gujarat has a 1600 km lo...
Article
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Although the porcellanid fauna of Indian waters has been studied for more than 150 years, diversity of this family remains underestimated. In order to complement the knowledge on the porcellanid fauna of India, an annotated checklist is herein provided on the basis of published literature. A total of 30 species belonging to 11 genera are currently...
Data
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Caridean shrimps did not display any selective feeding regimes. However, the shrimp belongs the genus Hymenocera (Caridea: Hymenoceridae) exclusively feeds on starfish, causes potential crisis to the hobbyists those wish to accommodate them in reef aquaria. The present observation deals with the documentation about the feeding behavior of Harlequin...
Article
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Four porcellanid species, Petrolisthes coccineus (Owen, 1839), P. lamarckii (Leach, 1820), P. moluccensis (De Man, 1888) and P. tomentosus (Dana, 1852), are reported on the basis of specimens collected from an intertidal area of Agatti Island, Lakshadweep Archipelago in south-western India. All the four species are recorded from the archipelago for...
Article
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Invasion of lionfish Pterois volitans and other reef fishes in the Vellar estuary, Parangipettai (lat. 11° °29′ ′N, long. 79° °46′ ′E) southeast coast of India, is a cause of concern as it may affect the local fishing communities and the estuarine ecological conditions. The present study reveals the temporal variations in the abundance of the reef-...
Article
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Sea urchin crab Echinoecus pentagonus A. Milne Edwards was documented based on specimen collected from the intertidal region of Agatti Island, Lakshadweep. It was found clinging on the ventral side of the sea urchin host Echinothrix calamaris Pallas. Species identification was confirmed with the help of elongated rostrum and carapace morphology. E....
Article
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The caridean shrimp family Gnathophyllidae currently comprises five genera: Gnathophyllum Latreille, 1819; Gnathophylloides Schmitt, 1933; Pycnocaris Bruce, 1972; Levicaris Bruce, 1973a and Gnathophylleptum d’Udekem d’Acoz, 2001, the last three genera being monotypic (De Grave et al., 2009). The original description of Pycnocaris chagoae Bruce, 197...
Article
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The barnacle Balanus amphitriteDarwin is a dominant intertidal and major fouling organism. As its life cycle includes both sessile and pelagic phases, adaptation is a necessity to tolerate harsh conditions that are faced in the intertidal and pelagic environment. A downward trend in dissolved oxygen levels in coastal areas has been recently observe...

Questions

Questions (4)
Question
How to rear Macrobrachium rosenbergii larvae? Whether 1 or 2 litre plastic containers are enough? What will be the preferred feed at diff. stages?
Kindly advise me on this
Question
From Gulf of Mannar with a resident glass shrimp Ancylomenes sp. at a depth of 12 meters.

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