Life History Traits of Gangetic Ailia Ailia coila (Hamilton 1822) in the Tetulia River, Southern Bangladesh

• Published in: Ribarstvo Vol. 81; no. 3; pp. 115 - 126
• Main Authors: Saha, Newton, Roy, Prosun, Utsha, Tanmoy Sarkar, Nag, Sudipta Kumar, Kaushik, Gitartha, Hossain, Md. Yeamin
• Format: Journal Article
• Language: English
• Published: Sciendo 01-09-2023
• Subjects: Growth pattern; Natural mortality; Population biology; Sexual maturity
• ISSN: 1848-0586; 1848-0586
• DOI: 10.2478/cjf-2023-0013

The near-threatened
, commonly referred to as Gangetic ailia, is a catfish species in the Ailiidae family that is indigenous to Bangladesh, Pakistan, Nepal, and India. This study describes the comprehensive explanation of life-history traits of
, including length-frequency distribution (
), growth pattern (length-weight relationships,
and length-length relationship,
), form factor (
), condition factors (allometric,
; Fulton’s,
; relative,
and relative weight,
), size at first sexual maturity (
), optimum catchable length (
) and natural mortality (
) from the Tetulia River in southern Bangladesh. Additionally,
,
,
,
and
from various water bodies worldwide using the existing literature were calculated in this study. A total of 316 samples were randomly collected occasionally using traditional gear for a year from July 2021 to June 2022. With an accuracy of 0.01 cm and 0.01 g, each fish’s total length (TL), standard length (SL), and body weight (BW) were measured. The group from 10.00 to 10.99 cm TL was numerically leading and the
values of
indicate positive allometric growth. The
was 0.005 and
was the best for assessing the well-being of
. Additionally,
indicates that the habitat was imbalanced with higher predators. The calculated
,
and
were 9.19 (~ 9.2 cm TL), 10.7 cm TL and 1.37 year
for
in the Tetulia River, respectively. These insights are vital for future research and recommending suitable management strategies for
in the Tetulia River and neighboring basins.