Download with Google Download with Facebook. Modes of reproduction in fishes. Aquaculture in Taiwan. Seasonality of reproduction in male spotted murrel Channa punctatus: correlation of environmental variables and plasma sex steroids with histological changes in testis Fish Physiol Biochem. PDF. The gill lamellae are so delicate and have blood sinusoids which are necessary for effective gas exchange during respiration (Fig.1, Fig.5). Dried Channa Punctatus Syeda Nusrat Jahan*, Salma Akhtar Department of Fisheries, University of Rajshahi, Rajshahi, Bangladesh Email address: *Corresponding author To cite this article: Syeda Nusrat Jahan, Salma Akhtar. The probable course which the karyotypic evolution took in this family . Channa punctatus was studied using wastewater dilutions (60–100%) from an international water channel Tung Dhab drain at an interval of 15 and 30 days. Key words: Channa punctatus, melanophore aggregation, Chlorophytum tuberosum, Chlorophytum borivilianum. Proceedings of species from the northern Aegean Sea, Turkey. Each gill arch of control fish has two rows of microscopic primary gill lamellae which secondary gill on lamellae are arranged bilaterally. Hypophysation and life history of Channa punctatus (Bloch). Chen LC, 1990. Ventral cephalic sensory pores arranged singly (red arrows). Science and Culture, 51:344-346. Measurement of pollutant toxicity to fish I. Bioassay methods for acute toxicity. Health status of a snakehead (Channa punctatus) of two fish markets in Mymensingh, Bangladesh M.M. TFH Publications, Neptune City, New Jersey, 941 pp. Quality Assessment of Oven Dried and Traditional Sun Dried Channa Punctatus. The … Download PDF Package. 2) MATERIAL AND METHOD Live specimens of Channa punctatus were collected for the present study. Zone diameters were interpreted as sensitive, intermediate and resistant according to the manufacturer’s instructions. 4, No. RESEARCH METHODOLOGY The study was carried out at department of Zoology, R.B.S. Channa punctatus: Head and isthmus region magnified ventrally. Vol. The eye diameter measurement The exposed fish showed significant alterations such as uprooted and damaged lepidonts and dispersal of chromatophores. RESULTS The antibiotic sensitivity profile of bacteria isolated from C. punctatus, Mystus sp. Microscopy and Microanalysis, 2014. Free PDF. 4.2Molecular identification For molecular identification a D1 region (574-bp) and D2 region (564 bp) of 28s rDNA gene fragment was amplified … 166 RISHI and HAOBAM TABLE 1 - Karyotypic data in members of the family Ophiocephalidae. Journal of Ecophysiology and Occupational Health 7(1/2), 39. Microphotographs of 30 µm thick cryocut transverse sections passing through OT of 1 - Channa Punctatus 2 - Heteropneustes fossilis showing laminar AChE distribution IOX (Scale bar - 100 µm) In Channa punctatus the outermost SM comprises two sub-zones based on AChE intensity the outer most sub-zone exhibited moderate reaction while the inner sub-zone showed intense activity. 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. Download Free PDF. is listed in Table 1. 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). During the experimental period the fishes were fed to satiation twice a day. The LC 10-LC 90 value for all the three compounds were calculated according to Probit analysis and CdCl 2 was shows low LC 50 value as compared to CdSO 4 and CdNO 3.Among morphological … Ahmed*, Z ... lesions, rough skin, scale loss and reduced pathological changes like mild necrosis, pyknosis, few vacuums and hemorrhages were observed. or. Morphometric studyAll the Measurements, except eye diameter, were taken ona millimeter scale. The fish melanophores were found refractory to MT after denervation. All the Measurements, except eye diameter, were taken on a millimeter scale. Fig. b) Enlarged view of Anterior margin depicting Circuli which are shaped like discs and Radii which run between two Circuli separating them. The effect of wastewater exposure on scales and chromatophores of freshwater fish Channa punctatus was studied using wastewater dilutions (60–100%) from an international water channel Tung Dhab drain at an interval of 15 and 30 days. Create a free account to download. Disease investigation of small indigenous fish species Channa punctatus of three fish markets in Mymensingh, Bangladesh K ... scale loss, red spots, deep dermal ulcer in Sankipara Railway Crossing and Gollpukurpar markets. Channa punctatus Bloch was selected due to its adoption in polluted aquatic environment. Volume I of the proceedings on the above theme, which was held in Phnom Penh, Cambodia from 11 to 14 February 2003. 4, 2019, pp. PDF. Introduction. PDF. (Channidae), which are a disguised type of smooth muscle cells and offer excellent in vitro opportunities for studying the effects of drugs. was actually scaled from the centre of the antibiotic disc to the end of the clear zone where bacteria could be seen growing. Sprague JB. Channa punctatus. Freshwater fish Channa punctatus was exposed to various concentration of cadmium chloride (600ppm to 650ppm), cadmium sulphate (600ppm to 850ppm) and cadmium nitrate (900ppm to 990ppm) for 24 hour. Fig 3: Scanning Electro Photomicrographs of scale of Channa punctatus showing: a) Anterior margin which consists of circuli and radii; Focus and Basal margin from where scale is attached to body. The family Ophiocephalidae and have blood sinusoids which are necessary for effective gas exchange during respiration (,. Arrows ) only a few years ago S ) the probable course which the karyotypic evolution took in family. The 23rd Swadeshi Science Congress, pp: 642-645 1 Show the measurement of... 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