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http://krishi.icar.gov.in/jspui/handle/123456789/62281
Title: | Biology and stock assessment of Tachysurus jella (Day) from Mumbai waters |
Other Titles: | Not Available |
Authors: | Dineshbabu,A P Raje,S G Das,Thakur |
ICAR Data Use Licennce: | Not Available |
Author's Affiliated institute: | Not Available |
Published/ Complete Date: | 2008 |
Project Code: | Not Available |
Keywords: | Stock assessment: Tachysurus jella |
Publisher: | CMFRI |
Citation: | Not Available |
Series/Report no.: | Not Available |
Abstract/Description: | Biological parameters such as length-composition, food and feeding, length-weight relations and growth of Tachysurus jella was studied using the data collected during 1987-2003. The occurrence of empty stomach was high (70%). Stomach content analysis revealed that the fish is a carnivore feeding mainly on bottom dwelling crustaceans (Preponderance Index, PI : 97.3) such as Squilla spp. (PI: 39) and crabs (PI: 35). The length-weight relationship was Log W = -5.7938 + 3.4426 Log L (r = 0.96). Estimated values of L∞ and K were 518 mm and 0.65yr-1 respectively. It was estimated that T. jella reaches 278 mm at the end of one year and 377 mm in two years. The longevity was estimated to be 4 to 4 ½ years. Stock assessment of T. jella during 1987-1999 indicated that the stock was overexploited (E = 0.73). Higher fishing effort and sharp reduction in yield during 2000 - 2004 confirmed that the species was under heavy fishing pressure and regulatory measures have to be imposed to sustain and improve the fishery of this species. |
Description: | Not Available |
ISSN: | Not Available |
Type(s) of content: | Article |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Indian Journal of Fisheries |
Volume No.: | 55 |
Page Number: | 295-299 |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | http://eprints.cmfri.org.in/114/1/Rajee.pdf |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/62281 |
Appears in Collections: | FS-CMFRI-Publication |
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