Length-weight relationship and condition factor of Liza subviridis (Valenciennes, 1836) of Parangipettai waters, southeast coast of India.
Determination of Length-weight Relationship (LWR) of any commercially important fish is crucial to validate the wild stock level, to predict their wellbeing in the natural habitat and for various sustainable fishery management practices. Liza subviridis (Valenciennes) is noted to be highly abundant along the coast of Parangipettai, South east coast of India. Hence, the present study was aimed to establish Length-weight relationship and condition factor of Greenback mullet, Liza subviridis (Valenciennes) occurring in Vellar estuary, Parangipettai (lat. 11 degrees 30' N, long. 79 degrees 46' E) using least square method. To determine the actual relationship between length and weight of L. subviridis exponent coefficient or equilibrium constant (b) and relative condition factor (Kn) analysis were adopted. The females were found to be heavier than males at similar length. The equilibrium constant 'b' was found to be 2.7106 in males and 2.8927 in females. The corresponding parabolic representation for male was W = 0.0462L(2.7106) and for female W = 0.0382L(2.8927). The equilibrium constant did not obey the cube law as it deviated significantly from 3 in the case of males. The relative condition factor around 1 and little over it revealed the well-being of L. subviridis in Parangipettai waters.
Centre of Advanced Study in Marine biology, Faculty of Marine Sciences, Annamalai University, Parangipettai-608502, Tamil Nadu, India.
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M
Ashiq Ur Rahman
Centre of Advanced Study in Marine biology, Faculty of Marine Sciences, Annamalai University, Parangipettai-608502, Tamil Nadu, India.
S Ajmal
SA
Khan
Centre of Advanced Study in Marine biology, Faculty of Marine Sciences, Annamalai University, Parangipettai-608502, Tamil Nadu, India.
P S
PS
Lyla
Centre of Advanced Study in Marine biology, Faculty of Marine Sciences, Annamalai University, Parangipettai-608502, Tamil Nadu, India.
K
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Kadharsha
Centre of Advanced Study in Marine biology, Faculty of Marine Sciences, Annamalai University, Parangipettai-608502, Tamil Nadu, India.
P Mohan
PM
Chander
Department of Biotechnology, Kulliyyah of Science, International Islamic University, Malaysia, Bandar Indera Mahkota-25200, Malaysia.
B Akbar
BA
John
D000704:Analysis of Variance; D000818:Animals; D001699:Biometry; D001835:Body Weight; D063366:Estuaries; D005260:Female; D007194:India; D016018:Least-Squares Analysis; D016014:Linear Models; D008297:Male; D012737:Sex Factors; D023701:Smegmamorpha / Q000033:anatomy & histology* / Q000254:growth & development