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GILLNET SELECTIVITY PARAMETERS FOR COMMERCIALLY IMPORTANT SPECIES, LABEO ROHITA IN A TROPICAL RESERVOIR, KERALA, INDIA

Indian Agricultural Research Journals

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Title GILLNET SELECTIVITY PARAMETERS FOR COMMERCIALLY IMPORTANT SPECIES, LABEO ROHITA IN A TROPICAL RESERVOIR, KERALA, INDIA
 
Creator K. M., SANDHYA
R, SARANYA
R. K. , AMRUTHTA
B., MANOJ KUMAR
THOMAS, SALY N.
 
Subject Exploitation
Gillnet
Mesh size
Reservoir
Selectivity
 
Description  The selectivity of fishing gear characterizes its capacity and efficiency in capturing fish. This knowledge helps in selecting the appropriate mesh size to suit the available fish population. The present study aims to estimate the gillnet selectivity parameters of a commercially important fish species, Labeo rohita, from a tropical reservoir in Meenkara, Kerala, India. The study was conducted from September 2019 to February 2020 through experimental fishing using gillnets of different mesh sizes (120, 130, 140, and 150mm) of identical design and dimensions. Selectivity parameters were estimated using Holt’s indirect method. The estimated optimum selection length of L. rohita for three different mesh sizes (120, 130, and 140mm) was 46.56, 50.44, and 54.32cm, and the common selection factor (SF) was 3.88. The estimated optimum mesh size of 127 mm was found to be ideal for the commercial exploitation of L. rohita in the Meenkara reservoir. The gillnet selectivity estimates obtained in the present study will be beneficial to increase the likelihood of capturing targeted size classes as well as better management of the L. rohita fishery in Meenkara reservoir.
 
Publisher Inland Fisheries Society of India
 
Date 2024-08-07
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/JIFSI/article/view/148758
10.47780/jifsi.55.3.2023.148758
 
Source Journal of the Inland Fisheries Society of India; Vol. 55 No. 3 (2023): Journal of Inland Fisheries Society of India; 299-307
0379-3435
10.47780/jifsi.55.3.2023.%a
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/JIFSI/article/view/148758/55395
10.47780/jifsi.55.3.2023.148758