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Title: | Studies on the spawning biology of the Trenched sardine, Sardinella sirm (Walbaum), from Vizhinjam, south-west coast of India |
Other Titles: | Not Available |
Authors: | Lazarus,S |
ICAR Data Use Licennce: | Not Available |
Author's Affiliated institute: | Not Available |
Published/ Complete Date: | 1990 |
Project Code: | Not Available |
Keywords: | Fish biology Spawning Trenched sardine Sardinella sirm Vizhinjam |
Publisher: | CMFRI/ICAR |
Citation: | Not Available |
Series/Report no.: | Not Available |
Abstract/Description: | Development of ova to maturity and the duration and frequency of spawning indicated that Sardinella sirm would spawn not only in spurts but also nonsynchronically. Presence of more than two distinct batches of ova in the ovaries indicated that the fish spawns twice in a season. The spawning season extended from December to February off Vizhinjam. Females attained maturity at a larger size than males. The minimum size at first maturity was found to be 175-179 mm for males and 180 -184 mm for females. The overall sex-ratio was unequal and females predominated from 105 mm size onwards. Fecundity showed a wide range of variation from 21.5 to 132.9 thousands. The spawning migration of the fish towards the inshore waters off Vizhinjam was observed. |
Description: | Not Available |
Type(s) of content: | Article |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Indian Journal of Fisheries |
Volume No.: | 37 |
Page Number: | 335-346 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | http://eprints.cmfri.org.in/301/1/Article_11.pdf |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/57897 |
Appears in Collections: | FS-CMFRI-Publication |
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