Reproductive biology of the European anchovy Engraulis encrasicolus (Linnaeus, 1758) in the Turkish Aegean Sea
Küçük Resim Yok
Tarih
2024
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Walter De Gruyter Gmbh
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The present study investigated the reproductive biology of European anchovies obtained seasonally from fishermen in Izmir Bay (Aegean Sea). The total length range of the investigated individuals was 9.0 - 15.7 cm. Of the 750 samples in which sex was determined, 34% were males, and 66% were females, resulting in a female-to-male ratio of 1.91:1. The first maturation length was determined to be 10.47 cm for females and 9.95 cm for males. Based on the total values of the gonadosomatic index, it was concluded that the reproductive period of the species falls in the summer season. The batch fecundity of the species ranged from 2.123 to 6.951 oocytes, and the fecundity-length relationship was expressed as F = 1134.4TL - 10034 (R2 = 0.84). Histological examination of the female ovaries revealed the presence of oocytes at different stages of development, indicating multiple spawning during the reproductive season.
Açıklama
Anahtar Kelimeler
European Anchovy, Engraulis Encrasicolus, Batch Fecundity, First Length Maturity, Izmir Bay, Aegean Sea
Kaynak
Oceanological and Hydrobiological Studies
WoS Q Değeri
N/A
Scopus Q Değeri
Q3
Cilt
53
Sayı
1