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Age structure and growth dynamics of the endemic Algerian barbel, Luciobarbus callensis (Valenciennes, 1842) in Foum El Khanga Dam, northeastern Algeria Cover

Age structure and growth dynamics of the endemic Algerian barbel, Luciobarbus callensis (Valenciennes, 1842) in Foum El Khanga Dam, northeastern Algeria

Open Access
|Jun 2026

Figures & Tables

Figure 1

Localization of sampling areas (original source).

Figure 2

Length-frequency distribution by sex of the Algerian barbel population of Foum El Khanga Dam.

Figure 3

Age composition of Algerian barbel.

Figure 4

Age–length growth patterns of Algerian barbel from Foum El Khanga based on the von Bertalanffy growth model.

Figure 5

Length–weight relationship of both sexes of Algerian barbel. TL, total length.

Figure 6

Theoretical weight growth curve of Algerian barbel.

Parameters of the Von Bertalanffy linear growth equation of both sexes and the combined sex of Algerian barbell_

DamsexL∞Kt0Ф’L minL maxEquation
Foum El-Khanga DamM54.730.38–0.373.0524.252TL = 54.73 (1-e−0.38 (t+0.37))
F58.630.07–2.092.3828.155.7TL = 58.63 (1-e−0.07 (t+2.09))
M + F58.630.39–0.353.1224.255.7TL = 58.63 (1-e−0.39 (t+0.35))

Size-weight relationship parameters for both sexes and the combined sex of Algerian barbell_

AreaSexNabR2tcalAllometryEquation
Foum El-Khanga DamM1290.1772.170.89511.46(+)MinorW = 0.177TL 2.17
F560.062.460.96067.39(+)MinorW = 0.06TL 2.46
M + F1850.1092.300.92413.19(+)MinorW = 0.109TL 2.30

Comparison of Von Bertalanffy growth parameters (L∞, K, t0, and Ø’) for Algerian barbel across different regions_

SitesAuthorsSexeL∞Kt0Ø’
Allal El Fassi Reservoir (Morocco)Bouhbouh (2002)M + F33.250.100–3.29/
M29.550.100–4.03/
F32.730.105–3.99/
El Harrach River (Algeria)Morsi et al. (2015)M26.2490.230.281/
F23.1580.310.213/
Beni Haroun Dam (Algeria)Mouaissia (2018)M + F57.080.195–1.082.80
M43.090.323–1.012.78
F56.690.160–1.062.71
Ouldjet Mellegue Dam (Algeria)Allalgua et al. (2025)M + F62.100.87–0.153.52
M51.050.57–0.253.17
F62.101.41–0.093.73
Foum El Khanga DamOur studyM + F54.730.38–0.373.05
M58.630.07–2.092.38
F58.630.39–0.353.12

Percentage of sexes of Algerian barbel_

DamSexEffectivesPercentage (%)Female-to-male ratio (%)
FoumEl-KhangadamF5630.2743.41
M12969.72

Parameters of the Von Bertalanffy weight growth equation for both sexes and the combined _sex of Algerian barbell_

SexFoum El-Khanga Dam
MWT = 1046.94 (1-e−0.38 (t+0·37)) 2·17
FWT = 1341.92 (1-e−0·07 (t+2·09)) 2·46
M + FWT = 1270.87 (1-e−0·39 (t+0·35)) 2.30
DOI: https://doi.org/10.26881/oahs-2026.1.13 | Journal eISSN: 1897-3191 | Journal ISSN: 1730-413X
Language: English
Page range: 145 - 157
Submitted on: Mar 11, 2026
Accepted on: May 3, 2026
Published on: Jun 17, 2026
Published by: University of Gdańsk
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2026 Sarra Guerfi, Amel Allalgua, Imen Boucenna, Sarra Kouadria, Chouaib Siouda, Nouha Kaouachi, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.