Fish Channa Research Articles

Alteration in gills, skin, and fins of snakehead fish (Channa striata) due to ectoparasite infection: a macropathological and histopathological approach

Snakehead fish (Channa striata) is a freshwater fish with high economic value both as ornamental and consumed fish. However, the ability to adapt to fluctuating environmental states prompts snakehead fish to be susceptible to parasites, ectoparasites, and endoparasites. Gills, skin, and fins are the major body parts that are often infected with ectoparasites. This study aims to discover the macro pathology in gills, skin, and fins of ectoparasites-infected snakehead fish and its histopathology. This study was conducted from April to June 2021. Observational data on macro pathology and histopathology were analyzed qualitatively. The results indicated that the macro pathology of the skin, gills, and fins of snakehead fish infected with ectoparasites indicates discoloration, excess mucus production, the dull coloration of the gills, and irritation of the gills body surfaces, and skin hemorrhages. In conclusion, infection of ectoparasites affects several alterations in the skin, gills, and fins, both macro pathological and histopathological.

TINGKAT INFEKSI EKTOPARASIT PADA IKAN TOMAN(Channa micropeltes)

This study aims to identify ectoparasites and determine the incidence of parasites in Toman fish that are kept in wooden cages in Muara Dua Village, Seruyan Hilir District, Seruyan Regency. The method of this research is the sampling of Toman fish (Channa micropeltes) as many as 60 fish taken from three cages where fish are kept using the survey method. Each fish was observed on the fins, skin and gills and compared the results with the identification key book. From the results of research on Toman fish originating from Muara Dua Village, it was found that 4 types of ectoparites that infested Toman fish were as follows: Ticodina sp, Dactylogrus sp, Oodinium sp, and Ichtyoptirius multifilis and predilection or sites of attack of ectoprasites including fins, skin, and gills with a level value of The incidence of ectoprasites ranges from 42-68%, including in the common and frequent categories.

Qingbo, a common cyprinid fish, responds diversely in behavior and locomotion to predators with different hunting modes.

Almost all prey live in habitats with predators with different hunting modes; however, most studies on predation have investigated the effects of only one predator at a time. In this study, we aimed to investigate whether qingbo (Spinibarbus sinensis), a common cyprinid fish, responds differently to active hunting and ambush predators and how qingbo responds when both types of predators coexist. Juvenile qingbo were subjected to catfish (Clarias fuscus, active hunter) exposure, snakehead fish (Channa argus, ambush hunter) exposure, or mixed predator exposure (catfish and snakehead coexistence) for a duration of 60days. Then, their growth, behaviors, swimming performance, and metabolism were measured. Qingbo subjected to active hunting predator exposure exhibited decreased activity and predator inspection and improved fast-start escape performance compared to those in the control group. However, none of the parameters of the fish subjected to ambush predator exposure changed significantly. Fish subjected to mixed predator exposure exhibited improved fast-start escape performance but increased maintenance energy expenditure, whereas no changes were observed in any of the behavioral variables. Qingbo showed a stronger anti-predator response to active hunting predators than to ambush predators, suggesting that the fish exhibit a stronger anti-predator response to a current direct threat than to a potential threat (a predator exists nearby but seldom presents in attack behavior). Additionally, the response of prey fish to multiple predators was quite complex, and the coexistence and interaction of multiple predator species with different hunting modes may lead to serious stress responses and confound the prey's behavioral responses to each predator.

COMPARATIVE STUDY OF HAEMATOLOGICAL PARAMETERS IN FISHES FROM THE NATURAL HABITAT, MADURAI REGION

The heamatological profile of two freshwater fishes Labeo rohita (Rohu) and Channa striatus (Murrel) with a relationship to the sex and the water quality under natural habitat was analyzed. The freshwater fishes were collected from the pond located in Thodaneri, Vadipatti taluk, Madurai district, Tamil Nadu, India. In heamatology studies, no significant variation was observed in Heamoglobin content and found almost the same in both the fish irrespective of the sex and also falls in the range of control value. In differential Leucocyte count (DLC) the following blood components Lymphocyte, Eosinophil, and Monocyte count were significantly higher than the control values and the values are found maximum in Rohu when compared to Murrel.RBC (Erythrocyte) count was almost the same in both the fish and the value falls between the range of control value Packed Cell Volume (PCV) count was almost the same in both the fish and the value falls between the range of control value. The values of Hb and PCV were found higher in male fish as compared to female fish. The leucocyte count is also higher in the males when compared to the females of both Rohu and Murrel. These may be also influenced by physiological activity, feeding habits, infectious agents, water quality parameters, and the environmental stress on the organism.

Reproductive Snakehead Fish (Channa striata Bloch, 1793) in Swamps Waters

The purpose of this study was to determine the reproduction of Snakehead fish (Channa striata Bloch, 1793) in the waters of the Merauke district wasur swamp. The data analysis used was the sex ratio, the level of gonad maturity, and the first size of gonad maturity. The results showed that the sex ratio of male and female snakehead fish in October and November at stations I and II tended to be balanced, while in September the sex ratio of snakehead fish at station I was balanced and at station II was not balanced. The maturity level of snakehead fish gonads at TKG III in September was around 35.48%, in October 28.57% and 15.38% in November. The size of the first time the gonads were ripe, the results showed that the first time the fish were ripe, the gonads were 190 mm long and weighing 50.3 g.

Status of Ornamental Fish Diversity of Urpod Beel of Goalpa-ra District, Assam

The North Eastern Sates including Assam are very rich in aquatic bio-resources and dominated by several endemic fish resources. The study was conducted from June 2018- July 2019 in two different fish assembling villages viz. Chamaguri (W) and Garokuta (North) of Urpad Beel and fish species were recorded along with their IUCN Conservation status. Alto-gether, 31 ornamental fish species belonging to 16 Genera, 15 Families, and 6 Orders be-longing to orders like Beloniformes, Cypriniformes, Osteoglossiformes, Siluriformes, Sym-branchiformes, Perciformes, Tetradontiformes were recorded. Out of the recorded fish spe-cies, Lepidocephalichthys guntea (Hamilton-Buchanan,1822), Channa gachua (Hamilton, 1822) and Chanda nama (Hamilton, 1822) were assessed as NE, Botia rostrata (Gun-ther,1868) and Channa gachua (Hamilton, 1822), Mystus vittatus ( Bloch, 1794) as VU, Ctenops nobilis (Mc Clelland, 1845) as NT as per IUCN Status 2013. The ornamental fishes are found in the weed assemblage of the Beel including Eichhornia crassipes, Hydrilla verticillate and Ceratophyllum demersum .

The effect of additives supplementation on the limitation of lipid and protein oxidation in dried snakehead fish (Channa striata)

The study was carried out to assess the effects of additives (glycerol and sorbitol) and the role of supplement rate of ascorbic acid on reducing lipid and protein oxidation in dried snakehead fish (Channa striata). The research results revealed that adding additives increased the amount of dry matter of the material, leading to a shorter drying process. The addition of glycerol and sorbitol at different ratios were the causes of the change of drying time and sulfhydryl index, peroxide value, TBARS index, salt content, color, and water activity level of the dried snakehead fish. Using 3% glycerol combined with 4% sorbitol, the drying time was 26.21 hrs. Dried snakehead fish product had a salt content of 6.04%, a water activity of 0.576, a brightness of 43.90, a peroxide value of 0.064 meq/kg lipid, a TBARS of 4.40 mg MDA/kg, a total sulfhydryl of 30.22 µmol/g protein, and an available sulfhydryl of 11.41 µmol/g protein. When ascorbic acid was added, the oxidation indexes of dried snakehead fish were significantly reduced; however, ascorbic acid showed a superiority at 0.04% with peroxide indices of 0.04 mEq/kg lipid, TBARS was 4.28 mg MDA/kg a total sulfhydryl of 31.60 µmol/g protein and sulfhydryl available reached to 11.94 µmol/g protein. The difference between the experiment of adding ascorbic acid was even more significant after four weeks of storage when the dried snakehead fish was less lipid and protein oxidation.

Effects of Addition Chili Ground to The Characteristics of Bekasam from Cork Fish (Channa striata) During Fermentation

Bekasam is a fermented fish product made from fish, salt, and roasted rice or rice that is mixed and fermented for 7 days. This study aims to determine the effect of the addition of ground chili at different concentrations on total acid, pH value, total lactic acid bacteria, and sensory properties of cork fish bekasam. The research design used was completely randomized design, 3 treatments and 3 replications. The treatments given were IBG without the addition of ground chili, IBGC1 adding 10% ground chili and IBGC2 adding 20% ground chili. Data were collected for total acid, pH, and total lactic acid bacteria fermentation days 1, 3, 5, and 7. The sensory properties were observed on days 1 and 7. The results showed that the addition of ground chili can reduce pH during 7 days fermentation, but the increase in total acid was not significant. The addition of 10% ground chili has a positive effect on the growth of lactic acid bacteria. The addition of 20% ground chili showed an inhibition of the growth of lactic acid bacteria during fermentation. Sensory test results stated that panelists preferred bekasam with the addition of 10% ground chili compared to control brakes and the addition of 20% ground chili.

THE LIMIT OF RED SEAWEED (Eucheuma cottonii) SUBSTITUTION IN SNAKEHEAD FISH (Channa striata) NUGGETS BASED ON SENSORY EVALUATION

Snakehead fish (Channa striata), a freshwater fish, is known to havefunctional properties in helping the process of healing burns andwounds after surgery. Besides that, the use of seaweed as a source offood fiber is also widely reported. This research was conducted todesign fiber-rich fish nuggets. The purpose of this study was todetermine the maximum levels of seaweed substitution in theprocessing of snakehead fish nuggets based on sensory properties.Single-factor experiment (seaweed, Eucheuma cottonii, substitution)arranged in a Completely Randomized Design with four replicationswas applied in this study. The parameters observed were hedonic andhedonic quality sensory properties for the attributes of color, aroma,texture, and taste of nuggets. The data obtained were analyzed by theFriedman Test, followed by the Wilcoxon Rank Test to detect thedifferences between treatments. Treatment of up to 75% seaweedsubstitution (0, 25, 50, and 75%) decreases significantly (p 0.05) thehedonic sensory acceptance of the snakehead fish nuggets for allattributes except the texture which shows an increase. Whereas, thetreatment with substitution of seaweed in the narrow percentage of 0,5, 10, 15, and 20% gave an expected result, which showed that therewas no significant difference (p 0.05) of the hedonic sensoryresponse for the overall acceptance. Nevertheless, 15% of seaweedsubstitution provides the best hedonic sensory response for overallacceptance. These results indicate that 15% of seaweed (Eucheumacottonii) substitution is recommended for use in the processing ofsnakehead fish nuggets.

Effect of Snakehead Fish (Channa striata) Extracts on Liver Function in Rats Which Receiving Anti-tuberculosis

Effect of Snakehead Fish (Channa striata) Extracts on Liver Function in Rats Which Receiving Anti-tuberculosis

Synthesis and Characteristics of Chitosan from Haruan (Channa striata) Fish Scales

Background: Haruan fish is one of the fisheries production which is quite popular in South Kalimantan. The body parts of the fish that usually become waste are scales. The lack of management of these wastes raises various issues in the environmental field that can extend to social and health problems, whereas fish scales contain chitin which can be synthesized into chitosan which is useful in the biomedical field. However, chitosan scales (Channa striata) have never been used optimally because there are no data available regarding the content of chitosan scales. Purpose:: The purpose of this study is to identify and know the characteristics of chitosan contained in the scales of haruan (Channa striata). Methods and materials: This research used a descriptive observational method by conducting quantitative analysis to determine physical characteristics (yield, moisture content, ash content, protein content, fat content, fiber content, carbohydrate content), chemical characteristics (pH and degree deacetylation), as well as the morphological description of chitosan powder with SEM. Results: Physical characteristics of chitosan from haruan scales were yield of 24.10%, moisture content of 4.92%, ash content of 0.45%, protein content of 0.17%, fat content of 0.66%, fiber content of 0,68%, carbohydrate content of 0,11%, and dissolve in 1% acetic acid. The chemical characteristics of chitosan from haruan fish scales are pH 10,16 and deacetylation degree (DD) of 85.25%. Morphological description of haruan chitosan fishscales in the form of many layers with structures that are almost spherical, porous, fibrous, broken, and irregular. Conclusion: In this study it has been proven that chitosan scales from haruan fish (Channa striata) have physical, chemical, and also characteristic morphology.

STUDI HABITAT BUAYA SENYULONG (Tomistoma schlegelii) DI SUNGAI SEKONYER TAMAN NASIONAL TANJUNG PUTING KALIMANTAN TENGAH

Senyulong (Tomistoma schlegelii) are crocodiles that have a unique morphology with shape of the snout in its mouth. This species based on IUCN Red List classified by endangered category (IUCN 2004). This study aim to determine characteristics ofSenyulong Habitat in Sekonyer river, Tanjung Puting National Park Central Kalimantan using by Purposive Sampling in discovery spot or ex crocodile nest, Parameter analyzed by important value index (INP), dominance index (C), index species diversity (H), species abundance index (e), and species similarity index. The results showed the abiotic water habitats in the river water pH 6 which indicated normal, an average of depth 4.5 meters and a water temperature 23.90 ºC. Biotically False Gharial likes the habitat of aquatic plants such as Rasau (Pandanus tectorious), water lily (Hanguana malayana) for sheltering. False gharial aquatic food habitats such as Toman fish (Channa gachua), Gabus (Channa striata) and Runtuk (Channa luchius) Baung (Mystus wyckii), Lais (Lais hexamena). Abiotically terrestrial habitats contain sandy clay texture and histosol soil types with 6 soil acidity, with 78% air humidity and the average temperature of 29ºC. Biologically, Senyulong terrestrial habitat formed by buffer zone with large tree with wide canopy and several types of terrestrial animals Senyulong food such as long-tailed monkeys, orangutans, and wild pigs. The terrestrial habitat of False Gharial is an important place to spawning ground by placing its eggs under a large buttress tree and covering the nest with leaf litter to keep it warm to camouflage egg predators such as to monitor lizards.Keyword: Terrestrial Habitat, Aquatic Habitat, Senyulong, Tanjung puting National Park

Physical Characteristics of Gelatin from Cork Fish skin in The Waters of Merauke

Cork fish (Channa striata) is a swamp fish that population very abundant in Merauke. This fish meat is rich in albumin and is usually used as an additional supplement for people who have undergone surgery. Cork fish skin also contains very high protein, which one of them is gelatin. Research on physical characteristics of gelatin from cork fish skin in the waters of merauke has been done. Gelatin were made by soaked the cork fish skin into acetic acid 0.5 M at concentration 2, 4 and 6% for12 hours. After soaked, the skins were washed by water until neutralized (pH 6), then it were extracted using aquadest (1:3) at 70oC for 2 hours. The filtrates then were filtered and dried in oven at temperature 40-50oC. The result showed that the best gelatin extraction was using acetic acid 0.5 M in concentration 6% with yield 10.15%, gel strength 169.45 gbloom, viscosity 14.31 cPs, white degree 52.

Characteristics of Cookies Formulated with Fish Protein Concentrate Powder Produced from Snakehead Fish (Channa striata) Extraction By-Product

Snakehead fish (Channa striata) is known as a species which is consumed by local people as functional food due to its benefits in the post operation recovery process. The extraction of snakehead fish for functional food produces solid by-product that can be utilized into Fish Protein Concentrate (FPC) powder. The FPC powder can be applied into various food products, including cookies. Study aimed to investigate the characteristics of cookies formulated with FPC powder resulted from Snakehead by-product. Study showed that addition of 5 and 10% FPC powder into cookies formulation increased fat and protein contents, improves texture as well as appearance of cookies. FPC powder with concentration of 10% resulted in cookies with higher protein content (11,41%), texture and appearance. However, further study is suggested to eliminate the fishy odor and taste produced by FPC.

KAJIAN EFEKTIVITAS EKSTRAK GEL IKAN TOMAN (Channa micropeltes) PADA LUKA BAKAR MENCIT (Mus musculus)

This study aims to determine the study of the effectiveness of toman fish (Channa micropeltes) gel extract on healing burns of mice (Mus musculus). This research was conducted for 4 months, starting from September 2018 to January 2019. This study used the experimental method and data analysis using a completely randomized design with 4 children and three replications: treatment A as control, treatment B giving toman fish extract gel (Channa micropeltes ) 1.5%, treatment C 3% and treatment D 4.5%. The results showed that on day 4, day 8 and day 12 showed that the administration of gel extract had a significant effect on changes in the length of burns of mice (Mus musculus) (P>0.05). In vivo test results on male mice with toman fish gel extract can capture the healing of burns in mice.

Sex Ratio And Length-Weight Relationship Of Snakehead Fish (Channa striata) In Tempe Lake Wajo District, Indonesia

Sex Ratio And Length-Weight Relationship Of Snakehead Fish (Channa striata) In Tempe Lake Wajo District, Indonesia

Molecular identification and genetic diversity of Gnathostoma spinigerum larvae in freshwater fishes in southern Lao PDR, Cambodia, and Myanmar.

Gnathostomiasis, an emerging food-borne parasitic zoonosis in Asia, is mainly caused by Gnathostoma spinigerum (Nematoda: Gnathostomatidae). Consumption of raw meat or freshwater fishes in endemic areas is the major risk factor. Throughout Southeast Asia, including Thailand, Lao PDR, Cambodia, and Myanmar, freshwater fish are often consumed raw or undercooked. The risk of this practice for gnathostomiasis infection in Lao PDR, Cambodia, and Myanmar has never been evaluated. Here, we identified larvae of Gnathostoma species contaminating freshwater fishes sold at local markets in these three countries. Public health authorities should advise people living in, or travelling to, these areas to avoid eating raw or undercooked freshwater fishes. Identification of larvae was done using molecular methods: DNA was sequenced from Gnathostoma advanced third-stage larvae recovered from snakehead fishes (Channa striata) and freshwater swamp eels (Monopterus albus). Phylogenetic analysis of a portion of the mitochondrial cytochrome c oxidase subunit I gene showed that the G. spinigerum sequences recovered from southern Lao PDR, Cambodia, and Myanmar samples had high similarity to those of G. spinigerum from China. Sequences of the nuclear ribosomal DNA internal transcribed spacer 2 region closely resembled sequences of G. spinigerum from Thailand, Indonesia, the USA, and central Lao PDR. This is the first molecular evidence of G. spinigerum from freshwater fishes in southern Lao PDR, Cambodia, and Myanmar.

Abnormal chromosome assessment of snakehead fish (Channa striata) affected by heavy metals from a reservoir near an industrial factory

ABSTRACT This study aimed to investigate nine heavy metal concentrations (As, Cd, Cr, Pb, Cu, Fe, Zn, Mn and Ni) in water, sediment and snakehead fish (Channa striata) and to identify abnormal chromosomes in C. striata from a reservoir near an industrial factory and a reference area. Heavy metal concentrations were measured by inductively coupled plasma optical emission spectrometry (ICP-OES). The metal concentrations in the water, sediment and C. striata samples did not exceed the standard limit of Thailand, except for Cr concentrations, which exceeded water quality standards. The concentrations of Cd, Fe, Mn and Ni in C. striata samples between the reservoir and the reference area were significantly different (p < 0.05). The diploid chromosome number of C. striata from both areas was (2n = 42). Eight types of abnormal chromosomes were identified and classified as a single-chromatid gap, a single-chromatid break, centric fragmentation, a centric gap (CG), fragmentation, deletion, single-chromatid decomposition and iso-arm fragmentation. The most frequent abnormal chromosome in the samples was CG. The percentages of abnormal chromosomes in the C. striata samples from the reservoir near the industrial factory and the reference area were significantly different (p < 0.05) at 8.44 and 1.20, respectively.

Effects of heavy metals on cytotoxicity of snakehead fish (channa striata) in the domestic waste water canal

Effects of heavy metals on cytotoxicity of snakehead fish (channa striata) in the domestic waste water canal

DINAMIKA POPULASI IKAN GABUS (Channa striata) DI RAWA DANAU PANGGANG, KALIMANTAN SELATAN

The province of South Kalimantan has the largest peat swamp that is named Danau Panggang Swamp with an area of 5,390.7 Ha. This swamp has ecological, economic and potential functions of a large fishery resource. The purposes of this study are to evaluate the exploitation rate of Snake Head Fish (Channa striata) in Danau Panggang Swamp, by population dynamic analysis using FISAT program of Von Bertalanffy method. The results showed that the growth pattern of Snake Head Fish (Channa striata) has the tendency to grow negative allometric with 63.4 cm of long infifer (L¥), growth rate (k) 0.15 per year, theoretical age at the time of the fish is equal to 0 (t0) is -1.48257 years. While the natural mortality rate (M) was 0.43, the mortality rate due to catch (F) of 0.69/year and the total mortality rate (Z) of 1.12/year, and the rate of exploitation value E = 0.62. These results indicated that the exploitation rate of Head Snake Fish (Channa striata) in Danau Panggang swamp has a tendency to overfishing.