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Morphology of adhesive surfaces in the sisorid catfish, Glyptothorax sinense sikkimensis

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Title Morphology of adhesive surfaces in the sisorid catfish, Glyptothorax sinense sikkimensis
 
Creator Das, Debasish
Chakraborti, Saurabh
Nag, Tapas C
 
Subject Adhesive organ
Glyptothorax sinense sikkimensis
Horny tubercles
Taste buds
Unculi
 
Description 385-393
This paper deals with the surface morphology and structure of suctorial mouthparts, expanded paired fins and adhesive
organ (AO) in a mountain stream catfish Glyptothorax sinense sikkimensis of India, as studied by scanning electron
microscopy. It possesses type I taste buds on its barbels and lips. There are scattered unculiferous plaques on the lower lip
and horny tubercles on outer fin rays, and knob like microstructures between fin rays of both paired fins. The thoracic region
bears a prominent AO, which has 8-10 unculiferous ridges arranged parallel to the body axis, separated by many
non-unculiferous grooves. The latter may act as the major attachment sites and function as a suction cup. A combined action
of the adhesive devices with their unique surface specializations enables the fish for better anchorage to sandy-rocky
substratum of glacier-fed, rapid mountain streams. The plaques on lower lip and horny tubercles and knob like substructures
in fin rays perhaps help in additional anchorage support to the major AO located at the thoracic area.
 
Date 2021-07-29T11:30:42Z
2021-07-29T11:30:42Z
2021-08
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscair.res.in/handle/123456789/57779
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJBB Vol.58(4) [August 2021]