Fecundity of Scomber (Actinopteri: Scombridae) Species Distributed in Izmir Bay (Aegean Sea)
2022
Burcu Taylan | Bahar Bayhan
A total of 46 chub mackerel and 23 Atlantic mackerel samples were taken from the commercial fishermen engaged in purse seine fishing from the Izmir Bay during the fishing period of 2020-2021. The samples were dissected in the laboratory, 15 ovaries from mature females were taken and fecundity was determined. The minimum, maximum and mean values of total length of Scomber scombrus respectively; It is 26.9-31 cm (mean: 28.89±1.44), 150 420-454 260 (mean: 259 300±97 369). A linear relationship was determined between total length fecundity in mackerel and this value was TL=25.396+0.000013×F (R2=0.83). Oocyte diameter; It is 1.1-.2 (mean: 1.16±0.10) mm. The minimum, maximum and mean values of total length of Scomber colias respectively; it is 25.1-25.9 cm (mean: 25.59±0.26), fecundity 134 853-417 500 (mean: 322 381±84 172). A linear relationship was found between total length fecundity in lichen and this value was TL=24.682+0.000003×F (R2=0.80). Oocyte diameter; It is 0.99-1 (mean:1.02±0.06) mm.
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