Age Structure and Growth Modeling of Sander lucioperca (Linnaeus, 1758) from Lake Oubeira (Northeast Algeria) | ||
| Egyptian Journal of Aquatic Biology and Fisheries | ||
| Volume 29, Issue 6, November and December 2025, Pages 541-556 PDF (782.44 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejabf.2025.432437.6781 | ||
| Authors | ||
| GUEZI Rabie* 1; Nabila BENSAFIA2; Khadidja wissal Abdallah3; Mounira universitaire Rachedi4; Raouf Zaidi5; Naouel Ouaali6; Fadila universitaire Zeghdoudi7; Zehaira Boudjadi3; Nadia Bezzazel3 | ||
| 1Laboratory Saharan Bio-Resources, University of Kasdi Merbah Ouargla, Algeria | ||
| 2-Laboratory of Ecobiology for marine environments and coastal areas, Faculty of Sciences, Badji Mokhtar University, Annaba, Algeria. -Faculty of Natural Sciences and Life, Chadli Bendjedid University, B.P 73, 36000 El-Tarf, Algeria. | ||
| 3Biodiversity and Ecosystem Pollution Laboratory,.Department of Marine Sciences, Faculty of Natural and Life Sciences, University of El-Tarf, 36000, El-Tarf, Algeria | ||
| 4Chali Benjedid El-Tarf University –Algeria, , Department of Marine Sciences, Faculty of natural and Life Sciences. | ||
| 5Department of marine sciences, Chadli Bendjedid Unversity El Tarf Algeria | ||
| 6Department of Biology, Faculty of Natural and Life Sciences, University of Souk-Ahras, 41000, Souk-Ahras, Algeria | ||
| 7Chali Benjedid El-Tarf University –Algeria, , Department of Marine Sciences, Faculty of natural and Life Sciences, Biodiversity and Pollution of Ecosystems Laboratory . | ||
| Abstract | ||
| The present study provides the first contribution focusing on the growth biology of the pike-perch Sander lucioperca in Oubeira Lake (El-Tarf, Northeast Algeria). A total of 374 specimens were sampled, of which 167 were females and 176 were males. The ages, total lengths (TL) and eviscerated weights (EW) of the individuals ranged between 1 and 8 years, from 21.2 to 88.9cm and from 92 to 1771g, respectively. Fish age was determined according to the direct method (scalimetry). The length-weight relationship was expressed by the following equations: EW = 0.007975TL3.02 for the entire population, EW = 0.00538TL3.11 for female and EW = 0.0104TL2.93 for male. The ANCOVA test revealed no significant difference between the slopes of the length-weight relationships (P> 0.05). The parameters of the von Bertalanffy model estimated from the age-length data were: L∞ = 91.39 cm; K = 0.41 an⁻¹; t₀ = –0.51. In our case the growth performance was recorded at (φ) 3.28. The asymptotic weight obtained (W∞ = 1985 g) was slightly higher than the maximum weight observed (1771 g). An isometric growth characterized the studied population (b = 3.02), with a positive allometry for females (b = 3.11) and a negative one for males (b = 2.93). These findings constitute the first comprehensive description of pike-perch growth parameters in Oubeira Lake and provide a baseline for the development of sustainable management and conservation strategies for the species in continental Algerian waters. | ||
| Keywords | ||
| Sander lucioperca; Growth parameters; von Bertalanffy model; Age structure; Oubeira Lake | ||
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