This study focused on novel histological indicators correlated with macroscopic reproductive parameters in male and female European anchovy (Engraulis encrasicolus). Weekly sampling from commercial catches in the Gulf of Béjaïa, Algeria, was conducted to measure microscopic parameters, including seminiferous tubule number (STN) and area (STA) in males, and oocyte number (ON) and surface area (OA) in females, independent of maturation stages. Macroscopic reproductive stages were assessed using a standardized five-degree maturity staging system and the gonadosomatic index (GSI). Results showed that OA and ON accurately reflected female maturity stages and exhibited opposing trends with GSI, suggesting their reliability as reproductive activity indicators. Similarly, seminiferous tubules parameters (STN and STA) provided valuable insights into male spermatogenesis and maturation stages. Our findings propose standardized ON/OA and STN/STA measurements as novel, quantitative tools for assessing reproductive activity in anchovy, combining histological and image analysis for a more precise understanding.
University of Béjaïa, Algeria - ORCID: 0000-0002-1928-8417
University of Béjaïa, Algeria - ORCID: 0000-0002-3218-0670
Titolo del capitolo
Objective quantative parameters to evaluate reproductive activity in Engraulis encrasicolus L.
Autori
Amina Rahmani, Mokrane Iguer-ouada
Lingua
English
DOI
10.36253/979-12-215-0556-6.26
Opera sottoposta a peer review
Anno di pubblicazione
2024
Copyright
© 2024 Author(s)
Licenza d'uso
Licenza dei metadati
Titolo del libro
Tenth International Symposium "Monitoring of Mediterranean Coastal Areas: Problems and Measurement Techniques"
Sottotitolo del libro
Livorno (Italy) 11th-13th June 2024
Curatori
Laura Bonora, Marcantonio Catelani, Matteo De Vincenzi, Giorgio Matteucci
Opera sottoposta a peer review
Anno di pubblicazione
2024
Copyright
© 2024 Author(s)
Licenza d'uso
Licenza dei metadati
Editore
Firenze University Press
DOI
10.36253/979-12-215-0556-6
eISBN (pdf)
979-12-215-0556-6
eISBN (xml)
979-12-215-0557-3
Collana
Monitoring of Mediterranean Coastal Areas: Problems and Measurement Techniques
e-ISSN della collana
2975-0288