Author(s): Maruf Hasan, Tasfia Khatun Beauty and Md. Saamim Reja

Abstract: The mola carplet, scientifically known as Amblypharyngodon mola a small indigenous freshwater species, widely distributed South Asian sub-continent. This study was conducted to investigates the life history traits of Amblypharyngodon mola in the Lohalia River, southern Bangladesh. A total of 150 specimens were collected between December 2023 and April 2024 to assess length-frequency distribution (LFD), length-length relationships (LLRs), length-weight relationships (LWRs), and condition factors (KF). The LFD was estimated by 1 cm TL class interval. The study revealed that, maximum individuals (68%) were distributed in the length class of 5.5 cm TL, whereas 61% of standard length (SL) and Fork length (FL) in 4 cm. All relationships were highly significant (p<0.001) with strong coefficients of determination (r² ? 0.936). The LLR between SL & TL, FL vs SL and TL vs FL indicated negative allometric growth significantly lower (b< 3) values was 0.750. The LWRs between SL vs. BW and TL vs. BW indicated negative allometric growth significantly (P<3) lower was 2.976 & 2.924, while and FL vs. BW indicated isometric growth significantly higher (p?3) values were 3.036. The mean KF value (1.15) suggests a healthy population within the river ecosystem. The findings indicate that the data produced from the study will serve as a baseline resource for efficient fisheries management and the sustainable utilization of A. mola in the Lohalia River and adjacent waters of Bangladesh.

DOI: 10.22271/fish.2025.v13.i6b.3182

Pages: 100-108  |  126 Views  76 Downloads

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