| Titre : |
Contribution à l'étude de la systèmatique et de la croissance des espèces du genre Trachurus de la région de Tipaza |
| Type de document : |
texte imprimé |
| Auteurs : |
Ines Bouras, Auteur ; Rania Douaoui, Auteur ; Ihcene khoudja, Auteur |
| Editeur : |
Tipaza [Algérie] : Centre universitaire Morsli Abdellah - Tipaza- |
| Année de publication : |
2024/2025 |
| Importance : |
p.44 |
| Présentation : |
couv. en noir et blanc ., ill., fig.,tabl. |
| Format : |
30 cm |
| Accompagnement : |
CD |
| Note générale : |
Bibliographie: p41-43. |
| Langues : |
Français (fre) |
| Catégories : |
Hydrobiologie
|
| Mots-clés : |
morphogeometry landmarks Von Bertalanffy model length-weight relationship. |
| Index. décimale : |
551.24 |
| Résumé : |
The species Trachurus trachurus, commonly known as Saourel or Atlantic horse mackerel, is one of the main target species in commercial fishing in the Tipaza region. This study focuses on the systematics of species within the genus Trachurus as well as on the growth of Trachurus trachurus, with the aim of better understanding its population dynamics and providing data for the sustainable management of this fishery resource. A sample of 90 individuals of T. trachurus and 6 individuals of T. mediterraneus was collected from the port of Tipaza between January and March 2025. A morphogeometric study using canonical variance analysis (CVA) on the coordinates of 15 landmarks was carried out. The growth of T. trachurus was investigated using several complementary approaches based on the Von Bertalanffy model, namely linear, relative, and weight-based growth.
Systematic analysis clearly distinguished T. trachurus from T. mediterraneus. The analysis of size-class data allowed the estimation of Von Bertalanffy growth parameters (L∞ = 28.40 cm; K = 0.44 yr⁻¹; t₀ = -
0.38 yr; and W∞ = 183.25 g), suggesting rapid growth during the first eight years followed by a slowdown. The results of the biometric relationships indicate positive allometry between total length and fork length, standard length, and head length. As for the length-weight relationship, it shows positive allometry for eviscerated weight and isometry for total weight.
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Contribution à l'étude de la systèmatique et de la croissance des espèces du genre Trachurus de la région de Tipaza [texte imprimé] / Ines Bouras, Auteur ; Rania Douaoui, Auteur ; Ihcene khoudja, Auteur . - Tipaza [Algérie] : Centre universitaire Morsli Abdellah - Tipaza-, 2024/2025 . - p.44 : couv. en noir et blanc ., ill., fig.,tabl. ; 30 cm + CD. Bibliographie: p41-43. Langues : Français ( fre)
| Catégories : |
Hydrobiologie
|
| Mots-clés : |
morphogeometry landmarks Von Bertalanffy model length-weight relationship. |
| Index. décimale : |
551.24 |
| Résumé : |
The species Trachurus trachurus, commonly known as Saourel or Atlantic horse mackerel, is one of the main target species in commercial fishing in the Tipaza region. This study focuses on the systematics of species within the genus Trachurus as well as on the growth of Trachurus trachurus, with the aim of better understanding its population dynamics and providing data for the sustainable management of this fishery resource. A sample of 90 individuals of T. trachurus and 6 individuals of T. mediterraneus was collected from the port of Tipaza between January and March 2025. A morphogeometric study using canonical variance analysis (CVA) on the coordinates of 15 landmarks was carried out. The growth of T. trachurus was investigated using several complementary approaches based on the Von Bertalanffy model, namely linear, relative, and weight-based growth.
Systematic analysis clearly distinguished T. trachurus from T. mediterraneus. The analysis of size-class data allowed the estimation of Von Bertalanffy growth parameters (L∞ = 28.40 cm; K = 0.44 yr⁻¹; t₀ = -
0.38 yr; and W∞ = 183.25 g), suggesting rapid growth during the first eight years followed by a slowdown. The results of the biometric relationships indicate positive allometry between total length and fork length, standard length, and head length. As for the length-weight relationship, it shows positive allometry for eviscerated weight and isometry for total weight.
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551.01 
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