distribution and feeding efficacy of larvivorous fishes of goa.fifteen species of larvivorous fishes, viz. aplocheilus blockii, aplocheilus lineatus, rasbora daniconius, puntius vittatus, puntius melanampyx pradhani, puntius amphibius, macropodus cupanus, danio aequipinnatus. oreochromis mossambicus, heteropneustes sp, therapon jarbua, etroplus suratensis, mugil cephalus. osteochilichthys nashii and hypselobarbus dobsoni were collected from different parts of goa. their habitat wise distribution was studied and density was recorded. daily average consumptio ...199810497843
temperature tolerance of some estuarine fishes.the temperature tolerance of estuarine fishes etroplus suratensis (bloch), therapon jarbua (forsskal), ambassis commersoni (cuvier) collected from vellar estuary, south india in 1986-87 were determined in the laboratory. e. suratensis and t. jarbua were found to be more tolerant to a wide range of temperature (16.5-41.5 degrees c for e. suratensis and 13.5-40.6 degrees c for t. jarbua), a. commersoni could tolerate from 15.5 to 38.5 degrees c. the tolerance area was found to be 512 units in e. s ...200111070343
influence of physico-chemical properties on the abundance of a few economically important juvenile fin-fishes of vellar estuary.studies on the economically important juvenile fin-fishes such as elops machnata, chanos chanos, lates calcarifer, epinephelus sp., sillago sihama, etroplus suratensis, mugil cephalus, liza parsia and liza tade with relation to the hydrographical parameters as rainfall, temperature, salinity, dissolved oxygen and ph of vellar estuary during september 2001 to august 2002. the simple correlation co-efficient showed positive significance against juvenile density with water temperature and dissolved ...200516114469
microbiological and biochemical changes in pearl spot (etroplus suratensis bloch) stored under modified atmospheres.this study aimed to determine the effect of packaging [air, modified atmosphere (ma)] on microbial growth, sensory and chemical parameters and also on shelf life of fresh pearl spot (etroplus suratensis bloch) and on the selection of microbial association.200516238753
studies on l-asparaginase enzyme of actinomycetes isolated from estuarine fishes.actinomycetes were isolated from different organs viz. skin, gills and gut contents of three species of fishes viz. mugil cephalus (linnaeus, 1758), chanos chanos (forskal, 1775) and etroplus suratensis (bloch, 1780) using three different media from the vellar estuary, situated along the southeast coast of india. among the three fishes, m. cephalus harboured highest number of actinomycetes population in all the three body parts examined followed by c. chanos and e. suratensis. out of the three b ...200717929767
effect of packaging atmosphere on the microbial attributes of pearlspot (etroplus suratensis bloch) stored at 0-2 degrees c.effect of packaging atmosphere (air and under different modified atmospheres (mas), 40% co2/60% o2, 50%/50% o2, 60% co2/40% o2, 70% co2/30% o2 and 40% co2/30% o2/30% n2) on the microbial and biochemical attributes of fresh pearlspot (etroplus suratensis bloch) stored at 0-2 degrees c was investigated. trimethylamine nitrogen (tma-n) and thiobarbituric acid (tba) values remained lower than the proposed acceptability limits throughout the storage period. results demonstrated that storage of pearls ...200818355677
development and characterization of a new epithelial cell line psf from caudal fin of green chromide, etroplus suratensis (bloch, 1790).a new cell line [pearlspot fin (psf)] has been developed from caudal fin of etroplus suratensis, a brackish/freshwater fish cultivated in india. the cell line was maintained in leibovitz's l-15 supplemented with 10% fetal bovine serum (fbs). the psf cell line consisted predominantly of epithelial-like cells. the cells were able to grow at temperatures between 25 degrees c and 32 degrees c with optimum temperature of 28 degrees c. the growth rate of psf cells increased as the fbs proportion incre ...201020577829
cellular organisation and functions of the olfactory epithelium of pearl spot etroplus suratensis (bloch): a light and scanning electron microscopic study.the cellular organisation of the olfactory rosettes of etroplus suratensis was studied by light and scanning electron microscopy. the oval shaped olfactory rosette of the fish consists of 12 lamellae radiating from a central raphe. the olfactory lamellae are comprised of restricted areas of sensory epithelium and broad areas of non-sensory epithelium in the apical, middle, and basal regions. the sensory epithelium contains three types of receptor cells: microvillus, ciliated, and rod cells, as w ...201021154285
cardiac myxosporiosis of pearl-spot, etroplus suratensis (bloch), due to myxobolus etropli sp. nov.a new myxosporean, myxobolus etropli sp. nov., was found to infect the bulbus arteriosus of etroplus suratensis (bloch) from brackishwater lagoons of muttukkadu, chennai coast, india. a survey from may 1993 to october 1994 revealed a prevalence rate of 33.7% of this parasite. macroscopic discoloured foci/cysts were seen in the bulbus arteriosus of the fish. the parasite showed strict host and site specificity. histopathology showed that the infection was restricted to the bulbus. this is the fir ...199821361971
accumulation of mercury and other heavy metals in edible fishes of cochin backwaters, southwest india.mercury, a global pollutant, has become a real threat to the developing countries like india and china, where high usage of mercury is reported. mercury and other heavy metals deposited in to the aquatic system can cause health risk to the biota. the common edible fishes such as mugil cephalus, arius arius, lutjanus ehrenbergii, etroplus suratensis were collected from cochin backwaters, southwest india and analysed for mercury and other heavy metals (zinc, cadmium, lead and copper) in various bo ...201121822576
immunomodulatory efficiency of etroplus suratensis muscle protein.the protein extract of etroplus suratensis (e. suratensis) collected from bavanisagar dam was found to be effective against all tested organisms with an inhibition zone ranging from 0.2 to 1.9 mm. when the result was compared with standard antibiotic streptomycin, a moderate efficiency was observed. in vitro, an antibacterial assay was used to assess the efficacy of fish protein in inhibiting the growth of pathogenic microbes. the fish protein of e. suratensis collected from bavanisagar had a br ...201426155096
development and characterization of novel cell lines from etroplus suratensis and their applications in virology, toxicology and gene expression.four novel cell lines from tissues of eye, gill, kidney and brain of etroplus suratensis were developed and characterized. the cell lines of eye, gill, kidney and brain were sub-cultured for 245, 185, 170 and 90 passages, respectively, since 2008. these cell lines showed predominantly epithelial-like cells. effects of temperature and foetal bovine serum concentration on the growth of these cell lines were examined and optimum growth was found at the temperature of 28° c with 20% foetal bovine se ...201222268432
heavy metal partitioning in sediments and bioaccumulation in commercial fish species of three major reservoirs of river cauvery delta region, india.chemical partitioning of heavy metals (fe, mn, cu, cr, pb, zn, ni) were determined in surface sediments of three reservoirs at the delta region of cauvery river, india. the abundance of metals in sediments varied in the following descending order: fe, mn, cr, zn, cu, ni, and pb. higher concentrations of zn, pb, fe, mn and cu in exchangeable and carbonate fraction indicated toxicity risk to the biota. therefore, to understand the extent of bioaccumulation, six commercial fish species were collect ...201525497770
sea lice, caligus rotundigenitalis infestations and its management in pond cultured pearlspot, etroplus suratensis in gujarat: a case study.highly popular and delicious fish of kerala (india), pearlspot, etroplus suratensis is known for its ability to tolerate wide range of salinity, omnivorous feeding behavior. present report documents the occurrence and management of caligus rotundigenitalis in brackishwater pond meant for culture demonstration of pearlspot in gujarat, (india). a brackishwater aquaculture pond (1,500 sq m) was stocked with pearlspot fry (2.60 ± 0.83 g; 4.31 ± 0.82 cm) @ 25,000 ha(-1). on the 46th day of culture co ...201627413343
seasonal abundance and composition of finfish and shellfish seeds inmangroves of gangolli estuary, off south-west coast of india.the composition and seasonal abundance of the fin and shellfish seeds in mangrove areas of gangoli estuary were studied for one year from january to december, 2013. monthly day time sampling was conducted with a rectangular dragnet of 75 m2 length having 5 mm mesh size. the mean monthly density was highest in january (avg. of 12,996/haul) and lowest during may (avg. of 859/haul). thirty species of fish, four species of shrimps and two species of crabs belonging to 26 families were recorded durin ...201526688975
bioaccumulation of metals in fish species from water and sediments in macrotidal ennore creek, chennai, se coast of india: a metropolitan city effect.accumulation of trace metals (fe, mn, cr, cu, ni, co, pb, zn, cd) were investigated in water, sediment (n=20) along with six fish of diverse feeding guilds (sillago sihama, liza parsia, etroplus suratensis, oreochromis mossambicus, arius parkii and gerres oyena) from the ennore creek, northern part of chennai metropolitan megacity, southeast coast of india. dissolved trace metals (dtms) in surface water samples and total trace metals (ttms) in surface sediments (top 0-10cm) indicate that concent ...201526092556
molecular cloning, characterisation and expression analysis of melanoma differentiation associated gene 5 (mda5) of green chromide, etroplus suratensis.innate immune system recognises pathogen-associated molecular patterns (pamps) by limited number of germline encoded and non-clonally developed pathogen recognition receptors (prrs). retinoic acid-inducible gene i (rig-i)-like receptors (rlrs) are important cytosolic prrs for sensing viral rnas. the receptor encoded by melanoma differentiation associated gene 5 (mda5), an rlr, recognises viral rna and enhances antiviral response in host cells. the full-length mda5 cdna in etroplus suratensis was ...201525523097
acclimation of brackish water pearl spot (etroplus suratensis) to various salinities: relative changes in abundance of branchial na(+)/k (+)-atpase and na (+)/k (+)/2cl (-) co-transporter in relation to osmoregulatory parameters.the present study was conducted to elucidate the osmoregulatory ability of the fish pearl spot (etroplus suratensis) to know the scope of this species for aquaculture under various salinities. juvenile pearl spot were divided into three groups and acclimated to freshwater (fw), brackish water (bw) or seawater (sw) for 15 days. the fish exhibited effective salinity tolerance under osmotic challenges. although the plasma osmolality and na(+), k(+) and cl(-) levels increased with the increasing sal ...201424482094
etroplus suratensis (bloch), the state fish of kerala. 201223151781
comparison of in vitro and in vivo acute toxicity assays in etroplus suratensis (bloch, 1790) and its three cell lines in relation to tannery effluent.cell lines of etroplus suratensis established in our laboratory were evaluated for their potential use as screening tools for the ecotoxicological assessment of tannery effluent. the cytotoxic effect of tannery effluent in three cell lines derived from eye, kidney and gill tissue of e. suratensis was assessed using multiple endpoints such as neutral red (nr) assay, coomassie blue (cb) protein assay and alamar blue (ab) assay. acute toxicity tests on fish were conducted by exposing e. suratensis ...201222205045
comparison of metal accumulation in the selected fishes from two sites of vembanad backwaters, kerala, india.the edible fishes etroplus suratensis and arius arius were collected from two different sites of vembanad backwaters. accumulation of heavy metals such as zinc, cadmium, lead and copper in different tissues of these fishes were analysed. kidneys showed maximum accumulation of all the metals in both the fishes. lead and copper were high in kumarakom (site-i) and zinc and cadmium in cochin (site-2) of the vembanad backwaters. the study revealed that both the fishes were highly contaminated with me ...201021391390
the introduction, origin and life-history attributes of the non-native cichlid etroplus suratensis in the coastal waters of singapore.etroplus suratensis, a southern asian cichlid, has established populations in singapore. the fish, which was first collected in 1995, was probably introduced via the aquarium trade or through the johor river in malaysia. the growth, feeding and reproductive characteristics were found to follow its ecology in its native range in southern asia, and its establishment in singapore could be due to the similarity in environment and availability of food. changes in intestinal length indicated diet shif ...201020557661
induction of sister chromatid exchanges and chromosome aberrations in vivo in etroplus suratensis (bloch) following exposure to organophosphorus pesticides.the genotoxic potential of methyl parathion and phosphamidon, two commercial formulations of organophosphorus pesticides, was evaluated through induction of sister chromatid exchanges (sce) and chromosome aberrations in fish gill tissues. fishes exposed to the medium containing 0.05, 0.1 and 0.2 ppm of methyl parathion or 0.5, 1.0, and 2.0 ppm of phosphamidon for a duration of 96 h revealed significant increase in the number of sce and chromosome aberrations against control values. this demonstr ...199910048756
in vivo induction of sister chromatid exchanges (sce) in a tropical fish, etroplus suratensis (bloch).sister chromatid exchange (sce) test was applied to a tropical cultured fish, etroplus suratensis by exposing to known mutagens. intramuscular injections of methyl methane sulphonate (mms) and cyclophosphamide (cp) for an exposure period of 96 h resulted in significant increase in the frequency of sce in gill tissues. mms induced dose dependent increase in sce. the findings revealed that the test species in the present study may be used in mutagenicity assays for screening environmental pollutan ...19979404540
purification and properties of glycogen phosphorylase from the estuarine fish, etroplus suratensis. 19846519674
purification and properties of a protease from the gut of etroplus suratensis. 196016748852
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