| dc.description | Bangladesh has 260 freshwater fish species among them 150 species are small
indigenous species (Hanif et al., 2015a). Small indigenous species are generally
considered those fishes that grow to a length of less than 25 cm in adult (Felts et al.,
1996). These small fishes have high nutritional value because they contain protein,
vitamin A, iron, calcium, phosphorus etc. (Banu et al., 1985). The fish, Puntius sophore
locally known as pool barb, is an important member of small indigenous species
belonging to the order of Cypriniformes (Rahman, 2005). This species is available in
rivers, streams, ponds, rice fields, floodplains, canals and some mighty river tributaries
flowing from Bangladesh, India, Myanmar, Pakistan and Nepal. | en_US |
| dc.description.abstract | The present study was conducted to observe the length-weight relationship condition
factor and growth parameter of Puntius sophore in Chikli river under Nilphamari district,
Bangladesh. The study was conducted for 12 month during March 2018 to February
2019. Study fish samples were collected monthly from Chikli river. At first, a gear was
set in selected point. Fishing was done 10 times for 2 hours per sampling by a cast net.
Same effort was maintained throughout the year. A total of 620 individuals were
collected from Chikli river during March 2018 to February 2019. Among them, 359 were
female and 261 were male. Minimum and maximum length of female is 4 cm and 9.5 cm
respectively, minimum and maximum weight of female is 0.86 g and 10.22 g
respectively. Minimum and maximum length of male is 3.8 cm and 9.2 cm respectively,
minimum and maximum weight of male is 1.01 g and 11.58 g respectively. In present
study, maximum length and weight of P. sophore recorded 9.5 cm and 11.58 g. Study of
the length-weight relationship of P. Sophore were described according to male, female
and combined populations. Study of the length-weight relationship of P. sophore were
described according to male, female and combined populations. In current study, length -
weight relationship were found as BW=0.123TL2.29
, BW=0.19TL2.02 and
BW=0.051TL2.87 for female, male and combined population, respectively. The value of
intercept ‘a’ was found as 0.123, 0.190 and 0.051 for female, male and combined
population, respectively. The value of regression coefficient ‘b’ was found as 2.29, 2.02
and 2.87 for female, male, and combined population, respectively. Moreover, coefficient
of determination (R2
) found as 0.88, 0.86 and 0.74 for female, male and combined
population, respectively. The generalized ‘b’ value was 2.87 indicating negative
allometric growth of Puntius sophore. The mean value of condition factor was recorded
as 1.46, 1.45 and 1.46 for male, female and combined population, respectively indicating
good well-being of fishes. The asymptotic length (L∞) was found as 8.93 cm, 9.98 cm
and 9.98 cm for male, female and combined population, respectively. The growth
coefficient (K) was found as 0.970 y-1
, 1.500 y-1 and 10.00 y-1 for male, female and
combined population, respectively. The growth performance index (Ø) was recorded as
1.88, 2.17 and 2.99 for male, female and combined population, respectively. | en_US |
