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Information Journal Paper

Title

Ontogeny of the eye of Caspian kutum, Rutilus kutum (Kamensky, 1901) from prehatch to the final larval stage

Pages

  35-42

Abstract

 The present study examines the developmental stages of the eye Retina in Caspian kutum during the pre-hatch stage to the end of the larval stage. Fertilized eggs were obtained from Shahid Ansari Center for the reproduction of teleost fish (Guilan Province, Iran). Sampling was conducted for one month until when the larval stage completed and the yolk sac completely depleted. Samples were studied using optical and electron microscopy. On the third day after fertilization (68hpf), the primary optic structure was observed. The undifferentiated neural epithelium was placed around the Lens placode originated from ectoderm. At 5dpf (120hpf), the eye was spherical and the optic cup was formed. The first Retinal stratification was initiated at the 9dpf (216h. dpf) and cone cells appeared in the Retina, while rod cells that only function in low light conditions, appeared after hatching at the fourth posthatching day. The cellular arrangement continued until several days after hatching. Along with the growth and development of the eye, the Lens grew by the addition of secondary Lens fibre cells proliferated from Lens epithelium cells. Also, the primary Lens fibre losing nuclei and other membranous intracellular organelles. The results obtained from the diameter of the Lens and the cone density represented that the visual acuity of Caspian kutum larvae increases at the end of the larval stage.

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    APA: Copy

    ABBASI, M., & SHABANIPOUR, N.. (2020). Ontogeny of the eye of Caspian kutum, Rutilus kutum (Kamensky, 1901) from prehatch to the final larval stage. JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH, 8(2 ), 35-42. SID. https://sid.ir/paper/408425/en

    Vancouver: Copy

    ABBASI M., SHABANIPOUR N.. Ontogeny of the eye of Caspian kutum, Rutilus kutum (Kamensky, 1901) from prehatch to the final larval stage. JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH[Internet]. 2020;8(2 ):35-42. Available from: https://sid.ir/paper/408425/en

    IEEE: Copy

    M. ABBASI, and N. SHABANIPOUR, “Ontogeny of the eye of Caspian kutum, Rutilus kutum (Kamensky, 1901) from prehatch to the final larval stage,” JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH, vol. 8, no. 2 , pp. 35–42, 2020, [Online]. Available: https://sid.ir/paper/408425/en

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