Study of scales in fishes

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=1UyP6utw-Xw

#filmora #filmoramobile • Here are some common types of scales in fish: • Placoid Scales: These scales are small, tooth-like structures found in cartilaginous fish like sharks and rays. They have a hard, enamel-like surface. • Cosmoid Scales: Cosmoid scales are found in primitive fish like coelacanths. They are thick, bony scales with a pitted surface. • Ganoid Scales: Ganoid scales are also bony and are seen in some primitive fish like gars and bowfins. They have an enamel-like layer on top. • Cycloid Scales: These are thin, round or oval scales found in many bony fish. They overlap each other and provide flexibility. • Ctenoid Scales: Ctenoid scales are similar to cycloid scales but have comb-like or serrated edges. They are often found in more advanced bony fish. • Leptoid Scales: These scales are elongated and are commonly found in eels and some other elongated fish species. • Ridge Scales: Ridge scales have raised ridges or keels, which can provide protection and reduce drag. They are found in some species of fish like pufferfish. • Each type of scale has its unique characteristics and adaptations, which can be important for the fish's survival and ecological niche. Studying these scales can provide insights into the evolution and biology of different fish species. • Thanks to Dr S. A Gurule sir.

#############################

New on site