LENGTH- WEIGHT RELATIONSHIP (LWR) AND CONDITION FACTOR OF Amblyceps apangi NATH & DEY FROM ARUNACHAL PRADESH, INDIA

Year 2017, Volume: 3 Issue: 3, 97 - 107, 21.05.2017

Akash Kachari Santoshkumar Abujam Debangshu Narayan Das

https://doi.org/10.3153/JAEFR17013

Abstract

Length-weight relationship of Amblyceps apangi had
been carried out from streams of Dikrong River
Arunachal Pradesh, during January 2014 to December 2015. The co-efficient of regression (b) was
recorded as 2.213 (males); 2.376 (females); 2.312
in pooled (both sexes).
The result reveals that females have better growth than males and both sexes signify a negative allometric growth pattern. The
highest Condition
factor ‘K’ value (0.82 ±0.24) for male was found in
November and minimum (0.45 ± 0.12) was observed in July. In case of female, the
highest value (0.95 ± 0.11) was recorded in November and lowest (0.50 ± 0.09)
was noticed in June. Again, the highest K values (0.83 ± 0.16) of male was
found in 61-70 mm while in females the highest (0.86 ± 0.13) was in 51-60 mm.
The lowest values for both male (0.38 ± 0.07) and female (0.36 ± 0.03) were
observed in 141-150 mm. The Relative Condition factor (Kn) value did not show
any variation with respect to monthly and size grouping. The result indicates
that both the sex was found in a good
condition. Moreover,
the K values were encountered with GSI values during the quiescent and
degenerative phases of the reproductive cycle but minimum K values coincides
with the increased GSI during the recrudescent phases both the sexes.
Coefficient of correlation (r) shows more or less similar trend in all male,
female and pooled. The correlation coefficient ‘r’ was
found to be 0.906 (males); 0.949 (females) and 0.934 (pooled). This result
indicates that there was a good correlation between length and weight of the
fish.

Keywords

Amblyceps apangi, Length-weight relationship, Condition factor, Arunachal Pradesh

References

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