Morphomeristic Characteristics, Length-Weight Relationship, and Condition Factors of One Stripe Spiny Eel, Macrognathus aral (BLOCH and J. G. SCHNEIDER, 1801)

The present study revealed complete information on length-weight relationships (LWRs), length-length relationships (LLRs), and meristic counts (covering different fin rays and ocellies) of a total number of 150 Macrognathus aral species collected from lotic water bodies and fish markets. The total length of the male and female species results from a range of 18.3cm to 32.5cm and 15.7cm to 29.0cm while body weight varies from 21.35gm to 156.6gm and 29.9gm to 138.9gm, respectively. The parabolic equation between total length and the total weight of M. aral is as W = 0.177000982 L2.4837 for male species and W= 0.105737 L2.9929 for female species. A strong relationship between length and weight shows a 93% (P<0.05) correlation in females and 82% (P<0.05) correlation in males. The values of ‘b’ showed negative allometric growth (b<3.0) in both sexes. The mean values of Fulton’s condition factors (K3) shown in male and female species were 0.378 and 0.558 respectively, while on the other side the values of Modified condition factors (Kb) shown in male and female species were 1.875 and 0.571, respectively, which indicates good health condition of the species in their natural habitats.

Manas Das1, Sayan Mandal2, Avik Bhanja3 and Basudev Mandal*4 Click here to download file

Research Article | Published online : 16-Jan-2023