(function(d, s, id) { Channa species are common fish available in the wetland of Begusarai. 37(3): 657-662. ?s Reaction stains. (Rahman, 2005). ), in Channa punctatus. Ophicephalus punctatus Bhuiyan, 1964, Fishes of Dacca. The maximum rise of 18.93% (80.74 ± 78.56) in serum cholesterol was observed after exposure of 96 hrs at 0.40mg/l Sumithion pesticide. The present study explored the induced genotoxicity (DNA damage) due to organophosphate pesticide profenofos (PFF) after in vivo exposure in freshwater fish Channa punctatus by the use of Comet assay and Random amplified polymorphic DNA (RAPD). Three sublethal (SL) concentrations, namely, 0.9, 1.8, and 2.7 mg/L were selected for the evaluation of genotoxicity and oxidative stress generated in the fish. Thus in the light of above facts, the present study was undertaken to determine the toxicity of 2-naphthalene sulfonate in blood cells of Channa punctatus. It constructs a nest of floating weeds, moves over ground from pool to pool. Ophicephalus punctatus Bloch, 1794, Nat. Reproductive System. These apertures communicate with the uriniferous tubules. Channa punctatus (Bloch, 1793) Ophicephalus indicus McClelland, 1842 Ophicephalus karruwey Lacepède, 1801 Ophicephalus punctatus Bloch, 1793 Ophiocephalus affinis Günther, 1861 Ophiocephalus indicus McClelland, 1842 Ophiocephalus karrouveri Lacepède, 1801 Ophiocephalus lata Hamilton, 1822 Ophiocephalus punctatus Bloch, 1793 In treated groups of cadmium exposed fish have been found to significantly decreased in total erythrocyte count, haemoglobin conte … The aim of this study was to characterize the normal structure of the liver of Channa punctatus, a carnivorous freshwater fish found in Hasanparthy Lake, using gross anatomy, histology and histochemistry. Any change in the aquatic environment causes altered behavioural responses, ultimately leading to physiological adjustments. When fishes were exposed to NaAsO 2, it induced death of the fishes in a concentration-dependent manner. The buccal cavity is spacious and leads into a short tubular oesophagus. Materials and methods Breeders were selected by external morphological characteristics and hand stripping (BILLARD et al., 1984). Barbells are absent. Scales are large and on head irregular. Channa punctata (Bloch, 1793) Accepted Name Green Snake Head Animalia > Chordata > Actinopterygii > Perciformes > Channidae > Channa > Channa punctata (Bloch, 1793) Ex-student, Department of Fisheries, University of Rajshahi, Rajshahi-6205, Bangladesh. Each testis is composed of seminifer­ous tubules and gives out a vas deferens which opens to the lateral side of the vent. Effect of an Insecticide Chlorantraniliprole on Biochemical Characteristics of Snakehead Fish, Channa punctatus (Bloch, 1793). The cypermethrin pesticide is widely used in agricultural field for the control of insect pests and is coming under synthetic pyrethroids which have shown strong pesticidal activity in freshwater teleost fish, Channa punctatus. characteristics, such as wide geographical distribution, freshwater habitat, availability throughout the year, maintenance and acclimatization to laboratory conditions, commercial importance, ease of blood collection, etc., make . The caudal fin is unilobed. Mouth is bounded by upper and lower jaws. chemical alterations in air-breathing fish, Channa punctatus. Habit and Habitat of Channa Punctatus: The lata fish inhabits fresh-water ponds and ditches. Each kidney is composed of numerous uriniferous tubules. The ... the fresh water fish channa punctatus shows increasing trend after malathion toxicity at different time intervals (7,14,21,28). The species is mainly a carnivore. 7, p. 141. I: 778 pp. We illustrate the expected staining characteristics of control Channa punctatus liver tissue with Methyl Green -Pyronin â??Yâ?? Seasonal variation in helminth parasites of snakeheads Channa punctatus and Channa striatus (Perciformes: Channidae) in Uttar Pradesh, India. General Characters of Actinopterygii: 1. js = d.createElement(s); js.id = id; Channa punctatus is infected with a new species of acanthocephalan parasite, P. punctati n. sp. The anal fin extends from the posterior end of the anus. p.367. Grasshopper egg and the paraffin method. These fishes are known as “Zeol fish” (Shafi and Quddus 1982). TELEOST CHANNA PUNCTATUS B.PADMA PRIYA*1 AND Y.AVASN MARUTHI2 1Research Scholar, 2Associate Professor Department of Environmental Science, GITAM University, Visakahapatnam-40, Andhra Pradesh Email-padmapriyabu@ymail.com ABSTRACT The present study was aimed to detect the levels of chloro-nictinyl insecticide residues in liver samples of fresh De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1793 door Bloch. Indian Journal of Geo-Marine Sciences Vol. There are two genital openings located at the lateral sides of the vent. Effect of hexavalent chromium J Ecophysiol Occup Health 7:171–175. A study on the impact of water quality on the murrel fish Channa striata and Channa punctata from three major Southern Tamilnadu rivers, India March 2018 RSC Advances 8(21):11375-11387 Any change in the aquatic environment causes altered behavioural responses, ultimately leading to physiological adjustments. Jaws are provided with sharp conical teeth. two air-breathing fishes, Channa punctatus and Heteropneustes fossilis, from the freshwater systems of southern India. These are commercially important fishes in our country and comparatively cheap too. This is the first record of Pallisentis from Bareilly, Uttar Pradesh, India. population characteristics, and affect its economic importance (Rhode 1993). Materials and Methods Adult specimens of C. punctatus (body wt: 100-160g) were collected from the backwaters of the ri ver Yamuna around Delhi (Lat. It is carnivorous. Channa punctatus) and its pickled product. Result: There was significant increase in serum cholesterol in Sumithion pesticide exposed, fish Channa Punctatus, comparative to normal control subject. Home; About Us; Amenities; Pricing; Contact; channa marulius characteristics Fishes of Dacca. Reproductive System of Channa Punctatus. }(document, 'script', 'facebook-jssdk')); If NO, You may send your feedback from Here, OR, Do you have any fisheries relevant question? The most important feature to note in the digestive sys­tem of lata is the presence of only two pyloric caeca (Fig. Channa punctata is een straalvinnige vissensoort uit de familie van slangekopvissen (Channidae). Several ecotoxicological organo-chlorine or organo-phosphorus insecticides (Sahoo et al., characteristics of Channa punctatus such as wide distribution in 1990) and has also been proposed for the control of pyrethroid- the freshwater environment, availability through out the … Bile produced in the liver is stored in the gall-bladder situated on the ventral side of the right lobe of liver. Bhuiyan, A. L. 1964. In the present study a non-significant to very highly significant reduction in MCHC from 26.62% has been observed (Table-1). The two kidneys are fused partially at their posterior ends. SEM studies showed species-specific attachment organs. Antoniadis, V. et al. Shaw and Shebbeare, 1937, The Fishes of Northern Bangal. SEM studies showed species-specific attachment organs. 1. The bile duct opens into the intestine just near the point of origin of the pyloric caeca. 2. Several ecotoxicological characteristics of Channa punctatus, such as wide distribution in the freshwater environment, noninvasive, availability throughout the seasons, presence of 32 well-differentiated diploid chromosome numbers, acclimatization to laboratory conditions, make this Main Menu. Neelam K … js.src = "//connect.facebook.net/en_GB/sdk.js#xfbml=1&version=v2.8&appId=470199356343916"; 2.2 Researching procedure . Both the scales are systematically arranged cycloid and prectenoid. chemical characteristics, such as temperature, pH, TDS (total dissolved solids), DO (dissolved oxygen), hardness, alkalinity, chloride and iron of experimental water were recorded throughout the experimental period. However, Trichodina pediculus was recorded only in one farmed fish. Rahman, A.K.A. Journal of Royal Asiatic Society of Bengal Science. The ability to breathe in air by its accessory respiratory organ helps the fish to thrive well out of water for a considerable period of time. This fish has great economic importance because it is eaten as food. Hist. Ausland. Channa punctatus normally grows to around 15.0 cm (5.9 in) in length, but males up to 31.0 cm (12.2 in) have also been captured. The striped snakehead (Channa striata Bloch, 1793) is a commercially important freshwater fish, found in a variety of habitats, encompassing swamp, rivers, streams, and a lake in southeast Asia, middle east and Africa 1.Channa striata are locally known as ikan gabus, belonging to the family Channidae 2, which prey on fish, crustacean, and gastropod 3. According the Bhuiyan (1964), maximum length is 30 cm whereas Rahman (1989) reported this fish attains over 240 mm in total length. Lower jaw is slightly protruding. The lata fish inhabits fresh-water ponds and ditches. The fish specimens were exposed to … Anus is located on the ventral surface and in front of the anal fin. It has been recorded that cycloid scales are also present. The parameter including total count of red blood corpuscles (RBC) was studied in details and showed highly sensitive This is the first record of Pallisentis from Bareilly, Uttar Pradesh, India. The present work was undertaken to point out the inter-relationship of various hematological parameters due to acclimation at cold and warm temperatures in Channa punctatus (Bloch). The 1933. Lata fish is notable for migration over­land from one pond to another during rains. De soort staat op de Rode Lijst van de IUCN als niet bedreigd, beoordelingsjaar 2009. The present study was conducted to investigate the dilution effect of tannery waste water on the activity of serum LDH enzyme of the Indian freshwater fish Channa punctatus. Channa punctatus is commonly known as snake head fish of carnivore feeding habit. In this article we will discuss about:- 1. The Zoological Society of Bangladesh, Department of Zoology, University of Dhaka, Dhaka-1000. and Feulgenâ? The work was also supported by Thakur and Bais7 in Fishes of India, being a natural history of fishes known to inhabit the seas and freshwaters of India, Burma and Ceylon. Freshwater Fishes of Bangladesh (Second edition). Proceeding of the National Academy of Sciences. The parameter including total count of red blood corpuscles (RBC) was studied in details and showed highly sensitive The effect of sublethal concentration (29 mg/l) of cadmium on haematological parameters of Channa punctatus after the exposure periods of 7, 15 and 30 days were studied. The reduction in MCHC has also been observed in Channa punctatus6. Channa Punctatus is found throughout the plains of India, Pakistan and Bangladesh. Channa punctatus were investigated. Several ecotoxicological characteristics of Channa punctatus, such as wide distribution in the freshwater environment, noninvasive, availability throughout the seasons, presence of 32 well-differentiated diploid chromosome numbers, acclimatization to laboratory conditions, make this Introduction. The fish species Channa punctatus was selected for the test because of some ecotoxicological characteristics such as wide distribution in the freshwater environment, non-invasive, availability throughout the season and easy acclimation to laboratory conditions (Kumar et al., 2010). 159-163 Isolation and identification of Vibrio spp. thetrichodinidparasitesin C.punctatus withdi erenthabitat ofvaryingwaterqualityinSylhet.e majorobjectivesofthe present study were to observe the trichodinid parasites on the gills of C. punctatus from the wild and cultured ecosys-tems and to nd out the prevalence and mean intensity of infestationof trichodinidparasites in Channa punctatus . Channa punctatus is commonly known as snake head fish of carnivore feeding habit. Privacy Policy3. 1988;58(B):55-65. Air breathing Channa punctatus can live without water for a long time without using any preservatives, this fish increasingly being used for freshwater aquaculture in Bangladesh to diverse favorable cultural characteristics. 7, p.388. Main Menu. Description. Our mission is to provide an online platform to help students to discuss anything and everything about Zoology. a successful model … Spawning usually takes place at night in shallow water with a silty substrate. Disclaimer Copyright, Zoology Notes | Exclusive Notes on Zoology for Students, Respiratory System of Channa Punctatus (Lata Fish) | Zoology, Circulatory System of Channa Punctatus (Lata Fish) | Zoology, Nervous System of Channa Punctatus (Lata Fish) | Zoology, Digestive System of Rohu Fish (With Diagram) | Chordata | Zoology, Muscular System of Toad (With Diagram) | Zoology, Geographical Distribution of Channa Punctatus. 2.2 Researching procedure . and analyzed for its physico-chemical characteristics by standard methods(ref) .The analysis report of the effluent along with tap water is represented in table-1 Live, healthy Channa punctatus in the same size range were collected from local streams and acclimatized under normal laboratory conditions for … On the ventral surface many minute apertures called nephrostomes are present. Various physiochemical characteristics of test water such as temperature, pH and hardness were regularly reported. The fishes were exposed to sub lethal Lata fish is notable for migration over­land from one pond to another during rains. water fish, Channa punctatus Shahida Parveen, Ram Bharose and Dharam Singh Abstract Channa punctatus is the most common fish found in Indian rivers and water bodies. HCG (1000 IU to 3000 IU/kg body mass) and ovaprim (0.1ml to 0.7 ml/kg) were injected intramuscularly Flesh is good and good commercial value. main catches are Anabas testudineus , Clarias batrachus, Channa punctatus, Mystus spp. It is voracious and predatory to small fish and fries. The channel catfish (Ictalurus punctatus) is North America's most numerous catfish species. HELMINTHOLOGIA, 2018. Two pairs of nostril are found at the anterior superior angle of the eyes. Channa punctatuss () were treated with Stomach is an elongated sac-like structure. J. Bombay. The dorsal fin is single. In the present study Channa puntatus has been … exposure on the pituitary-interrenal axis of a teleost, Channa Silfer EH, King RL. Body colour in live brown on the back, fading to lighter beneath, not spotted or striated. The bladder in turn opens to vent through a narrow duct. Water pollution mainly agricultural and industrial pollution and poisoning are potential threats. Two pairs of nostril are found at the anterior superior angle of the eyes. 394 pp. In the present study efforts have been made to find the antimicrobial effect of the mucus of two bottom dwelling fresh water fishes namely, Channa punctatus and Cirrhinus mrigala. After that, healthy fish (male and female) weighing approximately 35± 5 g were transferred to glass aquarium with 50 L capacity in controlled light (12 hr light/12 hr dark) and aeration conditions. According to Bhatti (1934), C. panctatus burrows in mud and prefers stagnant and muddy to running waters. Biology, Channa Punctatus, Chordate Classification, Phylum Chordata, Zoology. Ophicephalus punctatus Shaw and Shebbeare, 1937, Fishes of Northern Bangal. The spotted snakehead is listed as Least Concern in IUCN, due to lack of major threats to this species populations. The present work was undertaken to point out the inter-relationship of various hematological parameters due to acclimation at cold and warm temperatures in Channa punctatus (Bloch). There are two genital openings. 41(2), April 2012, pp. In the present study, Channa punctatus was used as an animal model to determine the toxicity of deltamethrin. => Characteristics of silk fibers and economic importance of silk worms => Life cycle and silk cultivation => Bee keeping: Castes, life cycle, economic importance, artificial bee culture ... => Channa punctatus (Lata/Taki Fish): External Features, Digestive System, Method of Dissection The spotted murrel Channa punctatus commonly known as “Koravai” in Tamil is an important food fish. All the necessary precautions for maintaining the fish were laid down as per the recommendation of APHA, 2005. Nat. Habit and habitats of the food fishes of the Punjab. Habit and Habitat of Channa Punctatus 2. In C. punctatus the MCHC ranges from 21.76-29.29% with an average of 26.62%. 2009b. Detection of Hepatic Cytochrome P450 as Biomarkers of Cypermethrin Toxicity in Fish, Channa punctatus (Bloch) Posted on December 29, 2020 by Editor JournalGazett Because of its high efficacy against target pests, cypermethrin, being a synthetic pyrethroid, is one of the most commonly used pesticides in commercial agricultural applications. Both the dorsal and anal fins are undi­vided and are supported by spinous bony fin-rays. The pharyngeal thyroid of fish of both treated groups exhibited hypertrophy and … Asiatic Society of Pakistan, Dacca.pp.148. Ophiocephalus punctatus Day, 1878, Fishes of India. Channa punctatus were investigated. Eyes comparatively of small size and located on the anterior of head. 1.49) and covered with ctenoid scales. Channa striata are locally known as ikan gabus, belonging to the family Channidae 2, which prey on fish, crustacean, and gastropod 3. But the effects of parasites are one of the factors hindering high production of fish [3]. The excretory organ of Channa Punctatus comprises of two elongated kidneys located ventral to the vertebral column and extending the whole of coelom. The liver is a distinct bilobed glandular structure. The striped snakehead (Channa striata Bloch, 1793) is a commercially important freshwater fish, found in a variety of habitats, encompassing swamp, rivers, streams, and a lake in southeast Asia, middle east and Africa 1. Fresh water fish, Channa punctatus, was exposed to PND in aquaria wherein its LC50 value was recorded to be 3.6 mg/L. thetrichodinidparasitesin C.punctatus withdi erenthabitat ofvaryingwaterqualityinSylhet.e majorobjectivesofthe present study were to observe the trichodinid parasites on the gills of C. punctatus from the wild and cultured ecosys-tems and to nd out the prevalence and mean intensity of infestationof trichodinidparasites in Channa punctatus . Various physiochemical characteristics of test water such as temperature, pH and hardness were regularly reported. The ... the fresh water fish channa punctatus shows increasing trend after malathion toxicity at different time intervals (7,14,21,28). Teeth on lower jaw are conical. 2. Males weighing 10 ± 2g and females weighing 12 ± 2g were divided into groups of ten each and were exposed to different concentrations of deltamethrin ranging from 0.02 ppm to 0.2 ppm, for five exposure periods, i.e., 1, 7, 15, 20 and 30 days. Endosulfan not only changes the physico-chemical characteristics of water but also impose drastic impact on the fish. 2. The body is divided into head, trunk and tail regions. The cypermethrin pesticide is widely used in agricultural field for the control of insect pests and is coming under synthetic pyrethroids which have shown strong pesticidal activity in freshwater teleost fish, Channa punctatus. Effect of endosulfan on certain aspects of hematology of the fish, Channa punctatus (Bloch). Fisheries Features special reference to Bangladesh. Extracts and preparations made from the animal origin were used extensively in folk and modern medicine for treating many human diseases. Nat. fjs.parentNode.insertBefore(js, fjs); Proximate composition (moisture, protein, fat and ash) and chemical analysis (pH) of fresh and dry-salted (DS) fish samplesShoal (C. striatus) and Taki (C. punctatus) were determined using standard methods of analysis at room temperature (27 0 31 0 C) for shelf life study. 77°12' E) during the preparatory period (February) and acclimated to laboratory conditions (25°±I°C; The head is depressed and covered by large plate-like scales resembling the ‘head shields’ of snakes. Eyes comparatively of small size and located on the anterior of head. Being non-biodegradable concern regarding its toxicity has risen. The ovaries are much longer than the testes and contain numerous eggs. Day, F. 1878. The host species for this study was Channa punctatus which belongs to order channiformes and family channidae. Home; About Us; Amenities; Pricing; Contact; channa marulius characteristics Channa punctatus to chronic toxicity of tannery effluent is ed in Figures 1-3. These caeca open at the junction of the intestine and the pyloric end of the stomach. Sci. Gonads exhibit seasonal variation and attain maximum size during breeding season. D. 29-32;  P1. Pendimethalin (PND) is one of the common herbicides used worldwide. Chemosphere 76:982–988. Digestive System 5. Channa punctatus) and its pickled product. It is usually carnivorous and eats other small fishes and small aquatic ani­mals. In some cases scales are absent. Wepener V, Van Vuren J, Du Preez H. Effect of manganese and iron at a neutral and acidic pH on the hematology of the banded tilapia (Tilapia sparrmanii). Bhatti, 1934. Bloch, 1794. William Dawson & Sons Ltd., London, Vol. 1.50). punctatus (Bloch). 2.2.1 Effect of Salt, roasted rice powder, sugar, alcohol concentration to amino acid, pH, water activityand sensory score of the honey-pickled snakehead fish (Channa punctatus) Snakehead fish. Scanning Electron microscopy of hooks and spines of male and female worms, exhibit sexual dimorphism. Mishra AK, Mohanty B. Endosulfan not only changes the physico-chemical characteristics of water but also impose drastic impact on the fish. Body of Actinopterygii is covered by ganoid, cycloid or cten­oid scales. […] Rahman, A.K.A. 1989. Soc. The fishes were exposed to sub lethal External nare is on the top of the head. The spotted snakehead, Channa punctatus (Bloch) belonging to the family Channidae. Generally spiracle is absent in Actinopterygii. Abidi R, Srivastava U. Not listed in IUCN red list as threatened. Please Ask Here, Taxonomic Features, Marketing Channel and World Distribution of Glossogobius Giuris (Hamilton-Buchanan, 1822), Introduction to endocrine glands of fishes, Migratory Pattern, Route and Abundance of Hilsa shad (Tenualosa ilisha), Shellfishes of Bangladesh: Shrimp and Prawn, Why Hilsa is called “the king of fish”? The intestine is a coiled tube with its distal part dilated as rectum. It has been identified as a potential candidate species for aquaculture in derelict and If YES, Please SHARE with your friends 2005. 15-18;  P2. The fish species Channa punctatus was selected for the test because of some ecotoxicological characteristics such as wide distribution in the freshwater environment, non-invasive, availability throughout the season and easy acclimation to laboratory conditions (Kumar et al., 2010). Channa punctatus. Scanning Electron microscopy of hooks and spines of male and female worms, exhibit sexual dimorphism. Channa punctatuss () were treated with p.95. ADVERTISEMENTS: 3. ADVERTISEMENTS: In this article we will discuss about the general characters and classification of Actinopterygii. Channa punctatus (Bloch) exposed to the toxicity of cypermethrin Jaya K. and Shettu N. P G and Research Department of Zoology, Pachaiyappa’s College, Chennai _____ ABSTRACT In the present study, an attempt has been made to examine the toxic effect of cypermethrin, a synthetic pyrethroid exposed to freshwater fish Channa punctatus. Pectoral fin position is a little above the pelvic fin and caudal fin long and rounded. p.124. Excretory System 6. Geographical Distribution of Channa Punctatus 3. India has 9 species of Channain different part of India. The chronic effects of continuous exposure for 6 months, from January to June, to safe (2.0 ppm) and sublethal (4.0 ppm) concentrations of a commonly used organophosphorus pesticide, cythion, on the histophysiology of the thyroid and thyrotrophs in Channa punctatus are described in this investigation. Matured eggs are conveyed through the oviducts and are discharged to exterior by reproductive open­ings. 6;  A. External Structures 4. Description of the species: Length of head is 3.2-3.5 of total length and 2.7 of standard length (Rahman, 1989). 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Channa punctatus. Serum cholesterol was determined as biochemical biomarkers while absolute Fish . Less catch in river or running water but good catch in flood plains, beels etc. I. The eyes are placed on the lateral sides of the head. The urinary bladder in this fish is a mesodermal derivative and as such is not homologous to the endodermal bladder of higher vertebrates. 2.2.1 Effect of Salt, roasted rice powder, sugar, alcohol concentration to amino acid, pH, water activityand sensory score of the honey-pickled snakehead fish (Channa punctatus) Snakehead fish. Two trichodinid parasites, Trichodina cyprinocola and Trichodina pediculus , were acknowledged in the gills during a sampling preparation of thirty fish Channa punctatus from the wild and cultured environments. The 2-naphthalene sulfonate is a sulfonated aromatic compound being widely used in textile industries. Two ureters from the two kidneys unite at the posterior end to form a common ureter which communicates with the urinary blad­der. (2017). Introduction There is an extensive early literature on temperature tolerance of poikilo-thermic animals which can now be considered to be of much value in judging their eco-physiological characteristics … Freshwater Fishes of Bangladesh. Content Guidelines 2. The testes are two in number and are elongated struc­tures. Sexes are separate. From a total of 33 parasites, 26.67% were encountered in wild and 46.67% in cultured fish. Fische. It is usually carnivorous and eats other small fishes and small aquatic ani­mals. This website includes study notes, research papers, essays, articles and other allied information submitted by visitors like YOU. Teleost Channa punctatus Exposed To Chlorpyriphos 50% + Cypermethrin 5% Ec Gurumeet Kaur1, Ritesh Kumar2, ... every alternate days to minimize contamination as well as maintaining the physicochemical characteristic of the water. Calculated the LC 50 value of Lead nitrate in the fresh water air breathing fish, Channa punctatus. This site uses Akismet to reduce spam. The small size freshwater fish, Channa punctatus, weighing TOS4. 28°35' N, Long. p.123. Welcome to NotesOnZoology.com! Length of head is 3.2-3.5 of total length and 2.7 of standard length (Rahman, 1989). 2018;6(1):1-7. var js, fjs = d.getElementsByTagName(s)[0]; Bioavailability and risk assessment of potentially toxic elements in garden edible vegetables and soils around a highly contaminated former mining area in Germany. It is concluded that Channa punctatus and Clarias batrachus are stenothermal. Significant variation in mean Red Blood Cells (RBC), mean White Blood Cells (WBC) and mean Haemoglobin, was observed in the blood of industrial effluents treated fish when compared to the untreated ones Channa punctatus when treated with 1.0, 1.5, 2.0 and 2.5 20-22. in diseased Channa punctatus from aquaculture fish farm Sankar Ganesh. Ausland.Fische. count in fish Channa Punctatus exposed under organophosphate pesticide sumithion. 364 pp. 100 ppm, the highest concentration tested in this study, was found to be the deadliest and it induced death of the fishes within 18 to 20 h. As the concentration lowered the survival time increased dose dependently. Before publishing your Notes on this site, please read the following pages: 1. Specimens of Channa punctatus were collected from the local fish market.Fish were acclimatized in the laboratory for a period of two weeks. Channa punctatus is infected with a new species of acanthocephalan parasite, P. punctati n. sp. Tilak K.S. and Yakobu,. Materials and Methods: This research study has been done in fish Channa Punctatus, which was exposed 24 to 96 hours to four different concentration of sumithion pesticide. The uriniferous tubules open to a tube called ureter which emerges from the posterior part of the kid­ney. The Zoological Society of Bangladesh, Department of Zoology, University of Dhaka, Dhaka-1000. Learn how your comment data is processed. Innovare Journal of Agri. The kidneys are of mesonephric type. if (d.getElementById(id)) return; Eggs are laid in nests through elaborate tunnels in vegetated areas which look like vertical columns of water with the eggs floating in the center (Ref.