National Aquatic Resources Research & Development Agency (NARA)

Empirioal determination of a desirable mesh size for the gillnet fishery of Oreochromis mossambicus (peters) in a man-made lake in Sri Lanka (Record no. 9373)

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 20181226101834.0
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) 17452
Personal name Amarasinghe, U.S.
245 ## - TITLE STATEMENT
Title Empirioal determination of a desirable mesh size for the gillnet fishery of Oreochromis mossambicus (peters) in a man-made lake in Sri Lanka
260 ## - PUBLISHER, DISTRIBUTION, ETC.
Date of publication, distribution, etc. 1987,
300 ## - PHYSICAL DESCRIPTION
Extent 22p.
440 ## - SERIES STATEMENT/ADDED ENTRY--TITLE
9 (RLIN) 17459
Title Asian Fisheries Science
520 ## - SUMMARY, ETC.
Summary, etc. An experimental fishing with bottom-set gillnets <br/>of different mesh sizes was carried out in Parakrama <br/>Samudra, a man-made reservoir in Sri Lanka, from <br/>May to September 1983. The optimum retention length <br/>of Oreochromis mossambicus, the dominant fish species <br/>in the reservoir fishery, was estimated for each <br/>mesh size using the Holt method. The optimal length <br/>of 0. mossambicus is a function of mesh size and is <br/>described by the equation; Y = 3.4763 + 0.2024X <br/>\ tUn) £r = o#9920; p ^0.01) where Y = optimal length<br/>(total) in cm and X = stretched mesh size in mm.<br/>Using this relationship and other information on <br/>the desirable landing size of 0. mossambicus for <br/>optimal utilization, the minimum permissible mesh <br/>size for the gillnet fishery is estimated to be <br/>102 mm. The importance of revising the existing <br/>mesh size regulations to optimize the fish production <br/>in the gillnet fishery of the reservoir is discussed.
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 17460
Topical term or geographic name entry element Fishing Gear
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 17462
Topical term or geographic name entry element Inland Fisheries
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 17461
Topical term or geographic name entry element Fishing Nets
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Research Papers
Source of classification or shelving scheme Dewey Decimal Classification
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