Abstract
Daily growth rates and pelagic larval duration were investigated in the common two-banded seabream (Diplodus vulgaris). Fish were sampled using a beach seine from the shallow waters of Gökçeada Island, Turkey, between June 2013 and June 2014. The minimum and maximum daily age estimates were 41 and 339 d, respectively. The mean daily growth rate of young-of-the-year D. vulgaris was 0.330 mm·d–1. Our results showed that D. vulgaris exhibits a Type Ia settlement-mark with a pelagic larval duration of 29 d. The hatching period occurred from November to April. The maximum hatching frequencies were observed in winter, when the water temperature was relatively low. The natural logarithm of young-of-the-year abundance data was plotted against age, and the instant mortality coefficients were estimated. The relationships between total length and otolith morphometric measurements (otolith length [OL], width [OW], and radius [OR]) were defined by linear equations. Furthermore, it was observed that this ratio exhibited a linear relationship with OL, OW, and OR and total length and daily age.
Publisher
Instituto de Investigaciones Oceanologicas
Reference49 articles.
1. Abecasis D, Bentes L, Erzini K. 2009. Home range, residency and movements of Diplodus sargus and Diplodus vulgaris in a coastal lagoon: Connectivity between nursery and adult habitats. Estuar Coast Mar Sci. 85(4):525-529. http://dx.doi.org/10.1016/j.ecss.2009.09.001
2. Altin A, Ayyildiz H. 2018. Relationships between total length and otolith measurements for 36 fish species from Gökçeada Island, Turkey. J Appl Ichthyol. 34(1):136-141. https://doi.org/10.1111/jai.13509
3. Altin A, Ayyildiz H, Kale S, Alver C. 2015a. Length-weight relationships of forty-nine fish species from shallow waters of Gökçeada Island, Northern Aegean Sea Turkey. Turk J Zool. 39(5):971-975. https://doi.org/10.3906/zoo-1412-15
4. Altin A, Ayyildiz H, Ozen O, Yuksek A, Acarli D. 2016. Gökçeada sığ sularındaki larva ve genç balıkların biyoçeşitliliği, dağılımı ve populasyon parametreleri [Biodiversity, distribution and population parameters of larvae and young of the year (YOY) fishes in the shallow waters of Gökçeada]. Çanakkale (Turkey): Tubitak. Project Report 112Y062. 262 p.
5. Altin A, Özen Ö, Ayyildiz H, Ayaz A. 2015b. Feeding habits and diet overlap of juveniles of 2 sparids, Diplodus puntazzo (Walbaum, 1792) and Diplodus vulgaris (Geoffroy Saint-Hilaire, 1817), from the North Aegean Sea of Turkey. Turk J Zool. 39(1):80-87. https://doi.org/10.3906/zoo-1312-2