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Title: | Observations on some aspects of biology and population dynamics of the Scad Decapterus Russelli (Ruppell)(Carangidae) in the trawling grounds off Kakinada |
Other Titles: | Not Available |
Authors: | Murty,V Sriramachandra |
ICAR Data Use Licennce: | Not Available |
Author's Affiliated institute: | Not Available |
Published/ Complete Date: | 1991 |
Project Code: | Not Available |
Keywords: | Scad Decapterus russelli Ruppell |
Publisher: | MBAI |
Citation: | Not Available |
Series/Report no.: | Not Available |
Abstract/Description: | Decapterus russelU (Ruppell)* is abundaat in relatively deeper waters and forms 80-90 % of carangid catches by trawlers. The von Bertalanffy growth parameters are estimated as Loe =• 232.3 mm, K =- 1.08 per year and to =» —0.08 year. The length-weight relationship can be described by the equation log W (g) = —5.93433+3.40764 log L (mm). The length and age at first maturity are estimated as 150mmand0.88 year respectively. This species spawns offKakinada during December-August. The different mortality rates are estimated as Z = 6.65, M «= 1.90 and F = 4.75 and the length and age at first capture as 158 mm and 0.98 year respectively. The yield per recruit analysis shows that: with t« above 0.6 the Yw/R increases with increased F without reaching maximum. The highest Yw/R, however, is obtained with tc at 0.6 only. |
Description: | Not Available |
Type(s) of content: | Article |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Journal of the Marine Biological Assocation of India |
Volume No.: | 33 |
Page Number: | 396-408 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | http://eprints.cmfri.org.in/1172/1/JMBAI_33(1&2)-396-408.pdf |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/57980 |
Appears in Collections: | FS-CMFRI-Publication |
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