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Spawning Season, First Maturity Length and Age of 21 Fish Species from the Central Aegean Sea, Turkey
[Orta Ege Denizi'ndeki 21 Balık Türünün Yumurtlama Zamanı, İlk Üreme Boyu ve Yaşı]

Akın Türker İLKYAZ, Gülnur METİN, Ozan SOYKAN, Hasan Tuncay KINACIGİL

Abstract [Özet]:
The aim of this study was to determine the spawning season and length and ages at first maturity lengths of demersal fish species in the central Aegean Sea. Fish samples were collected by bottom trawling in İzmir Bay. Sampling was carried out at monthly intervals over a three-year period. The sample size of 21 species was sufficient to estimate their spawning period and length at first maturity. These species were Arnoglossus laterna, A. thori, Blennius ocellaris, Boops boops, Buglossidium luteum, Cepola macrophthalma, Citharus linguatula, Deltentosteus quadrimaculatus, Dentex macrophthalmus, Diplodus annularis, D. vulgaris, Gobius niger, Lepidotrigla cavillone, Merluccius merluccius, Mullus barbatus barbatus, Pagellus acarne, P. erythrinus, Serranus cabrilla, S. hepatus, Spicara maena and Trisopterus minutus. It was determined that the current prohibited season protects only 47.1% of these during peak spawning periods and that some commercial species’ spawning periods are not covered by recent closed seasons. Although it was determined that a total of 13 species were fish targeted by artisanal fisheries, there are only four minimum landing size regulations in place for them. Therefore, for the study area we recommend a new prohibited season for fisheries carrying out bottom trawling as well as minimum landing sizes.

Keywords [Anahtar kelimeler]:
Spawning period, minimum landing size, reproduction, fisheries management

Journal [Dergi]:
Turkish Journal of Fisheries and Aquatic Sciences, 18(1):211-216

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Citation [Atıf gösterimi]:
İlkyaz, A. T., Metin, G., Soykan, O., Kınacıgil, H. T., 2018. Spawning Season, First Maturity Length and Age of 21 Fish Species from the Central Aegean Sea, Turkey. Turkish Journal of Fisheries and Aquatic Sciences, 18(1):211-216. doi: 10.4194/1303-2712-v18_1_24

 

This web page has been available since May 2018. Last modified on 11.05.2018.
[Bu web sayfası Mayıs 2018 tarihinden beri yayındadır. En son 11.05.2018 tarihinde güncellenmiştir.]