Length-weight relationship of a native fish in different
freshwater systems in Algeria
Accepted 14th
February 2020
S. Ould Rouis, H. Mansouri, A. Ould Rouis, H.
Fergani and A. Arab
Department of Ecology and Environment,
Laboratory of Dynamic and Biodiversity (LADYBIO),
Faculty of Biological Sciences (FSB), University
of Sciences and Technology HouariBoumediene (USTHB)
BP 32, El Alia Bab-Ezzouar 16111 Algiers,
Algeria.
The
objective of the present study was to identify
the differences between the population structure
and the biometric relationships of the cyprinid
Barbus callensis Valenciennes, 1842,
living in different freshwater systems: El
Harrach wadi located about 12 km east of Algiers
and Hamiz dam situated 35 km from Algiers. We
conducted sampling monthly from March to June
2013. In both freshwater systems, we collected
two hundred and thirty-one individuals of B.
callensis. For each individual, the total
standard lengths and the total weight were
measured using an electronic scale. The results
showed isometric growth for both barbels living
in the wild and living in an artificial
environment. Here, we provide new finding
regarding maximum size recorded in B.
callensis: in our sampling, the heaviest
fish caught in the dam was a female weighing 904
g corresponding to a total length of 43.5 cm.
This recorded size exceeds that published (30.0
cm) by Fishbase. This comparative growth of B.
callensis in different hydrosystems is
new in Algeria and interesting information about
this species is given: males, females and
juveniles are present in the river as well as in
the dam. Furthermore, we point out that barbels
have isometric growth in natural and artificial
environment.
Key words: Invasive species, El Harrach
wadi, North Africa, condition factor, juveniles,
vulnerable habitats, Hamiz dam.
This is an open access article
published under the terms of the
Creative Commons Attribution
License, which permits unrestricted use, distribution, and
reproduction in any medium, provided the original work is
properly cited.
Cite this article as:
Rouis SO, Mansouri H, Rouis AO, Fergani H, Arab A (2020). Length-weight
relationship of a native fish in different freshwater systems in Algeria. Acad. J. Sci. Res.
8(4): 168-174.