International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Call for Papers | Fully Refereed | Open Access | Double Blind Peer Reviewed

ISSN: 2319-7064


Downloads: 109 | Views: 275

Research Paper | Biology | India | Volume 5 Issue 11, November 2016 | Popularity: 6.3 / 10


     

Sexual Dimorphism in Mystus Gulio (Hamilton-Buchanan)

Seethal Lal S., Sherly Williams E


Abstract: Understanding of sexual dimorphism in fish is an uphill task and the phenomenon is paradoxical in different species. Considering the importance, a study was carried out to identify the distinguishing morphological characters between the sexes of M. gulio. It is an edible fish with therapeutic qualities and is recommended by physicians as diet during convalescence. Statistical analysis of various morphological measurements of 383 numbers of freshly collected specimens was the tool of the study. Together, some morphological peculiarities have also been noted for the seasonal sexual dimorphism including, Males are usually smaller than females with a clear white spot in the tip of fork. In addition to this, in the case of males there is a protuberance with a free tapering end lying further back to the body on ventral side. Regarding females, there is an additional aperture behind the anal opening. The generative openings terminate to this aperture behind the anal opening and this probably represents the 'vagina'. In case of the female, the generative aperture is far behind the anal opening and is simple. During breeding season, in male, additionally there exists a spear shaped thickening on the base of the caudal fin ie, caudal thickening. These are absent in the case of females.


Keywords: Sexual dimorphism, M Gulio, Morphometry


Edition: Volume 5 Issue 11, November 2016


Pages: 1789 - 1791



Make Sure to Disable the Pop-Up Blocker of Web Browser




Text copied to Clipboard!
Seethal Lal S., Sherly Williams E, "Sexual Dimorphism in Mystus Gulio (Hamilton-Buchanan)", International Journal of Science and Research (IJSR), Volume 5 Issue 11, November 2016, pp. 1789-1791, https://www.ijsr.net/getabstract.php?paperid=ART20163269, DOI: https://www.doi.org/10.21275/ART20163269



Similar Articles

Downloads: 108

Research Paper, Biology, India, Volume 4 Issue 4, April 2015

Pages: 1300 - 1304

Length-Weight Relationship and Condition Factor of Penaeus monodon Fabricius, 1798 in Northern Odisha, India

Sabita Kumari Mohanty, Swati Sucharita Mohanty, Bisnu Prasad Dash, Debansu Sekhar Pramanik

Share this Article

Downloads: 117

Research Paper, Biology, India, Volume 5 Issue 11, November 2016

Pages: 1792 - 1794

Reproductive Biology of Estuarine Catfish, Mystus Gulio (Hamilton-Buchanan)

Seethal Lal S., Jaya D. S., Sherly Williams E

Share this Article

Downloads: 120

Research Paper, Biology, Egypt, Volume 5 Issue 1, January 2016

Pages: 448 - 456

Sexual Dimorphism of Morphometrics and Meristics of Carangoides Bajad (Forsskal, 1775) and Caranx Melampygus (Cuvier, 1833) from the Southern Red Sea, Egypt

Usama M. Mahmoud, Sahar F. Mehanna, Ashraf S. Mohammad

Share this Article



Top