About 2,000 numbers of cat fish Tachysurus dussumieri weighing approximately five tonnes were landed on 25-11-1987 by shore seine operation at Nochikuppam landing centre in Madras. The entire catch was realised from a single operation which is an unusual phenomenon along Madras coast

Srinivasarengan, S

CMFRI Digital Repository

%D.V>^ MARINE FISHERIES INFORMATION SERVICE UNUSUAL LANDING OF CAT FISH TACHYSURUS DUSSUMIERI AT MADRAS* About 2,000 numbers of cat fish Tachysurus dussu- have been reported from the east coast also, especially mieri weighing approximately five tonnes were landed at Pondicherry (bag net) and Mandapam (trawl net). on 25-11-1987 by shore seine operation at Nochikup-pam landing centre in Madras. The entire catch was Spawning migration of T. thalassinus and T. ten-f A c 1 *• !.• 1 • 1 wM-ww/j towards shallow waters of less than 10 m depth realised from a single operation which is an unusual , , , . , , , , ^, , , has been reported during southwest monsoon (May -phenomenon along Madras coast. The catch was sold , , ^ c u^ ^ . /-. j • .i i- . .. . ^ July) from the west coast. Considering the fact that for Rs. 30,000 at the landing centre itself. ^„ ^^^ ^^,^^1^ specimens analysed were in advanced stage of gonadial maturity, it appears that T. dussumieri A sample of 69 specimens of the fish was collected ^|^^ je„ j , j ^ ^-^^^^^ ^^^^^^^ ^^^j j^^ ^^t^^^ ^^^-^^ from the catch for biometric and biological observations. northeast monsoon (October - December) along the The total length ranged from 611-710 mm. The maxi- east coast. mum frequency of 18.8% was observed in the length group of 651-660 mm. Of the 69 specimens, 46 were Cat fish do not form a major fishery along the males (66,7%) and 23 were females (33.3%). All Madras coast. The annual average landing is about the females were in stage V of gonadial development. 2.9 tonnes from trawlers, 0.6 tonne from mechanised gill netters and 0.5 tonne from non-mechanised gill Large shoals of cat fish are usually reported from netters during 1980-'86. The present unusual heavy lan-the west coast. Recently, heavy landings of cat fish ding was observed for only one day and it was confirmed from the fishermen that the shoal was moving from j ^ „ ^ . , ^, . „ , ^ , south to north and that they could get only about • Prepared by S. Srmivasarengan, Madras Research Centre of , ^ , , , , - . , i CMFRI, Madras. 25 % of the haul while the rest escaped. The author names of Fish Calendar VI for Tuticorin (MFIS No. 84, June, 1988) may be read in the order S. Mahadevan, P. Sam Bennet, K. M. S. Ameer Hamsa, Pon. Siraimeetan and H. Mohamed Kasim. The name of Shri Pon. Siraimeetan was left out inadvertently during consolidation of the article. —EDITORS Edited by Dr. K. J. Mathew, Mr. I. David Raj and Mr. G. S. D. Selvaraj. Published by Dr. K. J. Mathew on behalf of the Director, Central Marine Fisheries Research Institute, Cochin-682 031. Printed at PA ICO, Cochin-31. 

Unusual Landing of Cat fish Tachysurus dussumieri at Madras.

http://eprints.cmfri.org.in/3337/1/Article_07.pdf

Unusual Landing of Cat fish Tachysurus dussumieri at Madras.

Abstract

Similar works

Full text

Available Versions

CMFRI Digital Repository