Article Abstract

Volume 32, No. (4), 2022 (August)
STUDY ON THE GROWTH PATTERNS OF HERRING SCAD, ALEPES VARI (CUVIER, 1833) COLLECTED FROM THE KARACHI COAST OF PAKISTAN
N. Hawa, Z. Masood, A. Ullah and H. Azmat

N. Hawa1, Z. Masood2*, A. Ullah3 and H. Azmat3

1Department of Zoology, Jinnah University for Women’s, Karachi, Pakistan

2Department of Zoology, Sardar Bahadur Khan Women’s University, Quetta, Pakistan

3Department of Fisheries and Aquaculture, University of Veterinary and Animal Sciences, Lahore, Pakistan

Corresponding Author: zubiamasood12@gmail.com
Page Number(s): 1120-1126
Published Online First: January 06, 2022
Publication Date: July 30, 2022
ABSTRACT

The current study explains the estimation of growth patterns of Herring scad Alepes vari (Cuvier, 1833) collected from Karachi coast, Pakistan. A total of 100 samples (44 males and 56 females) were caught from January to December 2019. The length-weight relationships (LWR) along with correlation coefficients (r) calculated for the combined sexes, males and females of Alepes vari had showed Log Wt = - 1.36 + 2.56 Log TL (r = 0.853), Log Wt = -1.84 + 2.90 Log TL (r = 0.965), and Log Wt = - 0.96 + 2.28 Log TL (r = 0.760). In this study, the general growth pattern for combined sexes, males, and females were observed only positive allometric type (A+) with b-values ranged between 2.28 to 2.90, respectively. The overall results revealed that all length-weight relationships were strongly correlated with ‘r’ values ranging from 0.760 to 0.965, which shows a good health condition of this species. Moreover, the average values of Relative condition factor (Kn) ranging from 0.8 to 1.0, which revealed that both abiotic and biotic factors of the Karachi coast were found in acceptable limits for this species. Thus, our present study will provide useful information on growth patterns and management of Alepes vari along the Karachi coast of Pakistan.

Keywords: Alepes vari, Condition factor, Growth patterns, allometric, isometric, length-weight relationship

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Journal Impact Factor: 0.5 | (JCR Year: 2025) | Cite Score: 1.3

HEC Category: W

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Print ISSN: 1018-7081

Electronic ISSN: 2309-8694

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