National Aquatic Resources Research & Development Agency (NARA)

Age and Growth Estimates of Stolephorus Heterolobus (Ruppell) from Daily Growth Rings in the Otoliths (Record no. 9482)

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 20181227092513.0
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 Age and Growth Estimates of Stolephorus Heterolobus (Ruppell) from Daily Growth Rings in the Otoliths
260 ## - PUBLISHER, DISTRIBUTION, ETC.
Date of publication, distribution, etc. 1990,
Place of publication, distribution, etc. Philippines,
Name of publisher, distributor, etc. Asian Fishery Society,
300 ## - PHYSICAL DESCRIPTION
Extent 4p.
440 ## - SERIES STATEMENT/ADDED ENTRY--TITLE
9 (RLIN) 17706
Title Asian Fisheries Science
520 ## - SUMMARY, ETC.
Summary, etc. Age and growth parameters of Stolepho­ rus heterolobus caught by gill net and beach seine fisheries on the west coast of Sri Lanka are described. Ageing was based on primary growth rings in the otoliths. A total of 86 otoliths were extracted from fish having a length range of 2.1 - 8.5 cm. Otoliths were prepared for age reading after a little grinding. Rings were counted from the center of the otolith towards the outer edge. Verification counts on some otoliths were made by a second reader. The otolith microstructure was also used to trace the early life history of S_;_ heterolobus. There was a linear relation between fish length and otolith size. Growth esti­ mates were made by using direct size-at-age data and back-calculated data. Growth parameters estimated by these two methods are K = 4.02, L00= 8.62 and K = 3.91, L«,= 8.74, respectively. This species is relatively fast growing, having a life span of about 9 months.<br/>
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Research Papers
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