• Acharya Kanishk Vijay
• Mulgir M
• Shembekar V
• Popatwar N
• Pethkar M

Abstract: In the present study Embryology and Larval Development of Gold fish, Carassius auratus (Linnaeus, 1758) were done. Fertilized eggs hatch in 3-4 days depending on water temperature. In present study, hatching is observed on 4 th day after spawning of eggs. The diameter of the fertilized egg capsule ranges between 0.9 mm and 1.1 mm while the yolk sphere ranged from 0.5-0.9 mm in size. Then Cleavage Stages, blastula stage, gastrula stage and further developmental stages of embryo is recorded. The developmental stages were divided into embryonic, larval and post larval development. The embryonic stage occurs inside the chorion and ends in hatching. The larval stage was characterized by nutritive contribution of the yolk sac and the stage ends when the larva becomes capable of exogenous feeding. The post larval stage begins immediately upon absorption of the yolk sac and was characterized by autonomous feeding. Developmental time from post fertilization was rounded to the nearest minute until the morula stage and then to the nearest hour. The age of the larvae was denoted as hour after activation.

Keywords: Gold fish, Carassius auratus (Linnaeus, 1758), Embryology, Larval Development, Nanded, Maharashtra.

"Embryology and Larval Development in Gold fish, Carassius auratus (Linnaeus, 1758)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.409-419, March-2019, Available :http://www.jetir.org/papers/JETIR1903F61.pdf

"Embryology and Larval Development in Gold fish, Carassius auratus (Linnaeus, 1758)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp409-419, March-2019, Available at : http://www.jetir.org/papers/JETIR1903F61.pdf