National Aquatic Resources Research & Development Agency (NARA)

An Assessment of Kawakawa (Euthynnus Offinis) Stock on the West Coast of Sri Lanka (Record no. 9473)

MARC details
000 -LEADER
fixed length control field nam a22 7a 4500
003 - CONTROL NUMBER IDENTIFIER
control field OSt
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20181227092045.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 181214b xxu||||| |||| 00| 0 eng d
040 ## - CATALOGING SOURCE
Transcribing agency NARA
100 ## - MAIN ENTRY--PERSONAL NAME
9 (RLIN) 17659
Personal name Dayaratne P.
245 ## - TITLE STATEMENT
Title An Assessment of Kawakawa (Euthynnus Offinis) Stock on the West Coast of Sri Lanka
260 ## - PUBLISHER, DISTRIBUTION, ETC.
Name of publisher, distributor, etc. Asian Fisheries Society,
Place of publication, distribution, etc. Phillippines,
Date of publication, distribution, etc. 1991,
300 ## - PHYSICAL DESCRIPTION
Extent 219-226p.
440 ## - SERIES STATEMENT/ADDED ENTRY--TITLE
9 (RLIN) 17693
Title Asian Fisheries Science
Number of part/section of a work ; Vol.2
520 ## - SUMMARY, ETC.
Summary, etc. The kawakawa (Euthynnus affinis) stock on the west coast of Sri Lanka was assessed by using length data collected from the drift gill net fisheiy. Sampling was carried out at three major landing sites from August 1986 to July 1987. Data were analyzed using the compleat ELEFAN computer package. Two sets of estimates of parameters K and Lj 0.78 year'1,61.5 cm and 0.52 year"1, 76.8 cm were obtained. The natural mortality (M) was estimated at 1.46 year'1. The present level of exploitation estimated using the catch curve and cohort analysis was E = 0.24 and 0.14, respectively. A relative yield-per-recruit analysis showed that a higher yield could be obtained if effort were increased. These results together with catch data analysis suggest that the kawakawa stock on the west coast of Sri Lanka is not fully exploited.
700 ## - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 17694
Personal name De Silva, Janaka
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Research Papers
Source of classification or shelving scheme Dewey Decimal Classification
Holdings
Withdrawn status Lost status Damaged status Not for loan Home library Current library Shelving location Date acquired Inventory number Total Checkouts Barcode Date last seen Copy number Price effective from Koha item type
        NARA Main Library NARA Main Library Ready Reference 22.12.2018 RP0116   RP0116 22.12.2018 RP0116 22.12.2018 Research Papers

NARA Library Management System Maintaining by Ceymarc Technologies