Contribution to some biological aspects of invasive marbled spinefoot (Siganus rivulatus, Forsskål 1775) from the Turkish coast of southern Aegean Sea


Soykan O. , Cerim H., Gülşahin A.

Journal Of The Marine Biological Association Of The United Kingdom, cilt.100, ss.1-8, 2020 (SCI Expanded İndekslerine Giren Dergi)

  • Cilt numarası: 100 Konu: 3
  • Basım Tarihi: 2020
  • Dergi Adı: Journal Of The Marine Biological Association Of The United Kingdom
  • Sayfa Sayıları: ss.1-8

Özet

Some biological aspects of marbled spinefoot (Siganus rivulatus) were determined from a

southern Aegean Sea small-scale fishery. A total of 721 individuals were captured (335

females, 279 males and 87 immature) and sex ratio was found to be 1:1.27, female to male.

Total lengths and ages of individuals ranged between 9.0–26.1 cm and 1–9 years.

Asymptotic length (L∞), growth coefficient (K) and the theoretical age at zero length (t0)

were estimated to be 27.7 cm, K = 0.162 y−1 and t0 = −1.87 y. Length at maturity value was

determined as 16.6 cm for females and 16.84 cm for males. Although S. rivulatus is one of

the target species for small-scale and recreational fishery in the Turkish coast of the southern

Aegean Sea, especially in Gökova Bay, official landing data is lacking for Turkey. Results of the

present study are of crucial importance for further fisheries management of this invasive

species.