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http://krishi.icar.gov.in/jspui/handle/123456789/3625
Title: | Age, growth, population structure and reproductive potential of a vulnerable freshwater mullet, Rhinomugil corsula (Hamilton, 1822) from a tropical River Betwa in Central India |
Other Titles: | Not Available |
Authors: | R. S. Kumar U. K. Sarkar O. Gusain V. K. Dubey A. Pandey W. S. Lakra |
Published/ Complete Date: | 2013-07-20 |
Project Code: | Not Available |
Keywords: | Rhinomugil corsula Age classes Annual rings Growth rate Sex ratio Reproduction biology Central India |
Publisher: | Springer |
Citation: | Kumar, R.S., Sarkar, U.K., Gusain, O. et al. Proc. Natl. Acad. Sci., India, Sect. B Biol. Sci. (2014) 84: 275. doi:10.1007/s40011-013-0214-6 |
Series/Report no.: | Not Available; |
Abstract/Description: | Age, growth, population structure and reproductive biology of a vulnerable, freshwater mullet, Rhinomugil corsula (Hamilton, 1822) was studied from a perennial river of Central India between January 2008 and December 2009. Maximum seven annual rings were found and used to assess growth data in the samples representing 0 to +7 year classes. The annual increment in length was calculated to be 16.22 ± 6.06, 9.71 ± 4.32, 2.89 ± 3.85, 3.24 ± 2.73, 3.24 ± 1.17, 1.27 ± 1.24 and 0.58 cm in lst, 2nd, 3rd, 4th, 5th, 6th and 7th age groups respectively. The number of females was significantly higher than that of the males. Sex ratio (M:F) varied with season but the number of female specimens were greater throughout the year. Reproduction occurs likely between May and September. The mean size at first sexual maturity was 17.5 and 23 cm TL for male and female respectively. Gonadosomatic index (GSI) of both sexes showed maximum value in the mid of June which begins to decline till September. The present study developed a baseline data of a less studied fish which will help to evolve conservation and management strategy in view of changing environmental conditions in tropical rivers of India. |
Description: | Not Available |
Type(s) of content: | Research Paper |
Sponsors: | Department of Biotechnology (DBT), New Delhi, India |
Language: | English |
Name of Journal: | Proceedings of the National Academy of Sciences India Section B: Biological Sci. |
Volume No.: | 84(2) |
Page Number: | 275- 286. |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | 10.1007/s40011-013-0214-6 |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/3625 |
Appears in Collections: | FS-NBFGR-Publication |
Files in This Item:
File | Description | Size | Format | |
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art%3A10.1007%2Fs40011-013-0214-6.pdf | 1.66 MB | Adobe PDF | View/Open |
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