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Title: | Study on the fishery and biology of the mantis shrimp Oratosquilla nepa (latreille) of south kanara coast during 1979-83 |
Other Titles: | Not Available |
Authors: | Sukumaran,K K |
ICAR Data Use Licennce: | Not Available |
Author's Affiliated institute: | Not Available |
Published/ Complete Date: | 1987 |
Project Code: | Not Available |
Keywords: | fishery biology mantis shrimp Oratosquilla nepa |
Publisher: | CMFRI/ICAR |
Citation: | Not Available |
Series/Report no.: | Not Available |
Abstract/Description: | The catches of Oratosquilla nepa along the South Kanara coast were maximum during 1981-82, amounting to 2543.3 t at a catch rate of 16.5 kg|h at Mangalore and to 1868.8 t at 16.7 kg|h at Malpe. The catch was high during January- April. A mean growth of 7-8 mm|month was indicated. The species appear to grow to it length of about 108 mm by the end of first year and to live for 15-16 months. In the development of the ovary, five maturity stages, ie., immature, early maturing, late maturing, mature and spent|spent-recovering, have been recognised. The size at maturity at 50% level is estimated at 95 mm. The spawning season is found to be extending from December to October with peaks during March-June and September-October. Females generally outnumbered males. Chi-square test showed significant variation from 1:1 ratio in the distribution of sexes. The fecundity is estimated at 6,78,200 in a female measuring 108 mm body length. The growth parameters, 1 a, and c.k were estimated at 143 mm and 0.2877 respectively. The mean.monthly Z values were 0.9767 for males and 0.923d for females. |
Description: | Not Available |
Type(s) of content: | Article |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Indian Journal of Fisheries |
Volume No.: | 34 |
Page Number: | 292-305 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | http://eprints.cmfri.org.in/354/1/Article_08.pdf |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/56766 |
Appears in Collections: | FS-CMFRI-Publication |
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