Study of the Age and Growth by Scalimetry of Pagellus erythrinus (Sparidae, Linnaeus, 1758) along the El-Kala Coast (North East Algeria) | ||||
| Egyptian Journal of Aquatic Biology and Fisheries | ||||
| Article 85, Volume 28, Issue 5, September and October 2024, Page 1425-1437 PDF (573.26 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejabf.2024.384350 | ||||
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| Author | ||||
| Rachedi et al. | ||||
| Abstract | ||||
| The age and growth of the common pandora (Pagellus erythrinus) were investigated along the El-Kala coastline (northeastern Algeria), marking the first study of its kind in this area. From March 2023 to February 2024, a total of 492 specimens were sampled, with total lengths (TL) ranging from 10.5 to 23.5 cm, total weights (TW) from 7.03 to 164.3g, and eviscerated weights (EW) from 6.1 to 157.3g. The ages of the specimens ranged from 0 to 6 years, determined using the direct method of scalimetry. The growth parameters based on the von Bertalanffy growth model, derived from the average age-length pairs, were as follows: L∞ = 23.72cm, K = 0.2 year⁻¹, t₀ = -0.901, and W∞ = 166.25g, with a performance index (φʹ) of 2.05 for both sexes combined. The relative growth equations for males, females, and all specimens were TW = 0.043TL².⁵⁹, TW = 0.067TL².⁴³, and TW = 0.052TL².⁵², respectively, indicating negative allometry for all three categories. | ||||
| Keywords | ||||
| Pagellus erythrinus; Scalimetry; Age; Growth; El-Kala; North East Algeria | ||||
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