Blood Of Freshwater Fish Research Articles

Functional state of an organism of freshwater fish under the influence of abiotic factors

The purpose of the work was to conduct a scientific and experimental analysis of the study of the functional state of the organism of hydrobionts while growing in recirculation of aquaculture systems using an unconventional method of water treatment, which was used in the formation of feed forage for their feeding. The experimental part of the work was carried out on the basis of the laboratory of aquatic bioresources and aquaculture of the Biotechnology Faculty of the Dnipro State Agrarian and Economic University and the Scientific and Experimental Center “Aquatic Biodiversity and Aquaculture of the Pre Dnieper” of the Dniprovsky State Agrarian and Economic University. The practical part of the work consisted of several stages: the formation of the preparatory period (obtaining the breeding culture of phytoplankton and zooplankton, cultivation on different environments in order to establish an optimal scheme); obtaining of fish planting material and determination of fish objects for experiment; staging of the experiment (conducting research on feeding natural food of different processing of mother-crops). Scientific and experimental studies on the study of the functional state of the organism of hydrobionts when cultivated in the PAC with the use of an unconventional method of processing fodder mixed with their feeding give grounds to note the positive impact on its qualitative and functional characteristics. Investigation of the morpho-functional status of blood of freshwater fish on the background of the use of the proposed method for processing fodder mixed with fertilization in the early stages of ontogeny showed that stimulation of erythropoiesis, activation of protein metabolism in the organism of hydrobionts within the limits of the physiological norm occurs in the experimental group. The combination of several rapid methods (GRU) makes it possible to provide comprehensive research and acquires scientific and practical value, since the study of the physiological state of the object of biotesting against the background of the use of various factors involves the implementation of an entire chain of sequential research.

Impact of Fenthion on Ionic Regulation in the Blood of Freshwater Fish, Cyprinus carpio (Linn).

The blood of fresh water, edible fish, Cyprinus carpio was exposed to sub lethal concentration of fenthion for 24, 48, 72 and 96 h to evaluate alterations in the levels of minerals i.e., sodium, potassium, chloride, calcium and magnesium . The increased mineral sodium and potassium play an important role in neuromuscular excitability, acid-base balance and increased osmotic pressure of the fish. The decreased calcium is of great importance in blood coagulation, muscle contraction and nerve transmission of the fish. The increased magnesium participates in principal metabolic activities, in formation of bones and teeth. Reduction in Chloride ion contents may be due to blockage of chloride ion from gut into serum due to Fenthion stress.

Studies on the Morphology of some Trypanoplasms from the Blood of Fresh Water Fishes in Maharashtra I. From Fishes of the Genus Puntius

Summary The paper gives a detailed account of dimorphic trypanoplasm Trypanoplasma gadrii n. sp_ found in the blood of the fresh water fishes of the species Labeo calbasu, and L. dyocheilus from Maharashtra. The slender and stumpy forms are present in equal numbers and marked off by distinct differences in the body width. A well developed elongated kinetoplast, chromophilicgranules in the cytoplasm and distinctly unequal flagella are characteristic of this species.

Studies on the Morphology of some Trypanoplasms from the Blood of Fresh Water Fishes in Maharashtra II. From Fishes of the Genus Labeo

Studies on the Morphology of some Trypanoplasms from the Blood of Fresh Water Fishes in Maharashtra II. From Fishes of the Genus Labeo

A New Hemoflagellate (Genus Cryptobia) from Marine Fishes of Northern New England

A New Hemoflagellate (Genus Cryptobia) from Marine Fishes of Northern New England

Trypanosomes and dactylosomes from the blood of fresh-water fish in East Africa

1. Trypanosomes were found in the blood of thirty-five of seventy-two fish of five genera (chiefly Tilapia spp.) from Lakes Victoria and George, Uganda.2. The trypanosomes, which were never numerous in the blood, showed two morphological forms—small (22–44μ. long) and large (45–65μ). No significant differences were observed between the trypanosomes from the different species of fish, and all the trypanosomes seen are provisionally identified as Trypanosoma mukasai Hoare, 1932.3. Crithidia were found in the gut of a glossosiphoniid leech which had been removed from a fish; although suggestive, this cannot be taken as conclusive evidence that leeches of this family are vectors of T. mukasai.4. The taxonomy of the trypanosomes of African fresh-water fish is reviewed, and it is concluded that only the following species should be regarded as valid at present: T. toddi Bouet, 1909, T. mukasai Hoare, 1932, and T. tobeyi Dias, 1952.5. Dactylosoma mariae Hoare, 1930, was found in the blood of thirty-six of the seventy-two fish examined. Merozoites, schizonts and gametocytes of this small unpigmented parasite were observed within erythrocytes. No developmental stages were found in certain viscera of two infected fish.

Studies in Colour Changes of Fish

Studies in Colour Changes of Fish

Observatious on the Flagellates Parasitic in the Blood of Freshwater Fishes

Proceedings of the Zoological Society of LondonVolume 79, Issue 1 p. 2-31 Observatious on the Flagellates Parasitic in the Blood of Freshwater Fishes Prof. E. A. Minchin M.A., P.P.Z.S., Prof. E. A. Minchin M.A., P.P.Z.S.Search for more papers by this author Prof. E. A. Minchin M.A., P.P.Z.S., Prof. E. A. Minchin M.A., P.P.Z.S.Search for more papers by this author First published: June 1909 https://doi.org/10.1111/j.1096-3642.1909.tb01854.xCitations: 3AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Citing Literature Volume79, Issue1June 1909Pages 2-31 RelatedInformation

Societies and Academies

LONDON. Zoological Society, January 12.—Prof. J. Rose Bradford, F.R.S., vice-president, in the chair.—Observations on the flagellates parasitic in the blood of fresh-water fishes: Prof. E. A. Minchin. Five species of Trypanosoma and four species (two new) of Trypanoplasma, from fishes of the Norfolk Broads, were described in detail. Particular attention was paid to the minute structure of the parasites, and it was shown that it is possible to give a uniform description for the nuclear apparatus of both Trypanosoma and Trypanoplasma.—Zoological results of the third Tanganyika expedition, 1904–5. Report on the Copepoda: Prof. G. O. Sars.—The gonadial grooves of a medusa, Aurelia aurita: T. Goodey. The author dealt with investigations which confirmed his earlier suggestion that the gonadial grooves, which lie in the interradial axes between the central gastric cavity and the gastric pouches, have a sexual function. From sectionised material, drawings had been obtained of spermatozoa and eggs lying within the limits of the gonadial grooves, thus proving that the latter are functional gonoducts.—The tuberculin test in monkeys, with notes on the temperature of mammals: Dr. A. E. Brown. The paper described the methods and results of experiments which have recently been carried out at the zoological gardens of Philadelphia with the view of suppressing tuberculosis in monkeys.—Balaena glacialis and its capture in recent years in the North Atlantic by Norwegian whalers: Prof. R. Collett.