Age, Growth and Mortality Rates of Symphodus tinca (Osteichthyes: Labridae) in Izmir Bay (NE Aegean Sea)
Gülnur Metin, Okan AkyolA total of 373 Symphodus tinca specimens were obtained from small-scale fisheries in January 2017 - December 2018 off Urla coasts (Izmir Bay), north-eastern Aegean Sea. The length and weight distribution of all S. tinca specimens ranged from 7.8 to 24.5 cm TL (mean: 14.4 ± 0.12) and from 6.6 to 209.3 g (mean: 43.2 ± 1.30), respectively. The female – male ratio was 1:0.41. The weight-length relationship parameters (a, b, r2 ) were calculated to be 0.0175, 2.9023 and 0.9629, respectively. The age of S. tinca was determined to be between 0 and V years. The von Bertalanffy growth parameters were L∞ = 39.06 ± 23.57 cm, K = 0.14 ± 0.14, and t0 = -1.77 ± 0.77. In addition, the Von Bertalanffy Growth Formula for length is given by the following equation: Lt = 39.06 [1 – e -0.14 (t + 1.77)]. Thus, the growth performance (Φ`) was estimated as 2.32. The values of mortality and exploitation rates of S. tinca are 1.015 (Z), 0.380 (M), 0.635 (F) and 0.626 (E), respectively. These results indicate that stocks of S. tinca in the Bay of Izmir are overexploited.
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APA
Metin, G., & Akyol, O. (2024). Age, Growth and Mortality Rates of Symphodus tinca (Osteichthyes: Labridae) in Izmir Bay (NE Aegean Sea). Aquatic Sciences and Engineering, 39(4), 255-260. https://doi.org/10.26650/ASE20241520933
AMA
Metin G, Akyol O. Age, Growth and Mortality Rates of Symphodus tinca (Osteichthyes: Labridae) in Izmir Bay (NE Aegean Sea). Aquatic Sciences and Engineering. 2024;39(4):255-260. https://doi.org/10.26650/ASE20241520933
ABNT
Metin, G.; Akyol, O. Age, Growth and Mortality Rates of Symphodus tinca (Osteichthyes: Labridae) in Izmir Bay (NE Aegean Sea). Aquatic Sciences and Engineering, [Publisher Location], v. 39, n. 4, p. 255-260, 2024.
Chicago: Author-Date Style
Metin, Gülnur, and Okan Akyol. 2024. “Age, Growth and Mortality Rates of Symphodus tinca (Osteichthyes: Labridae) in Izmir Bay (NE Aegean Sea).” Aquatic Sciences and Engineering 39, no. 4: 255-260. https://doi.org/10.26650/ASE20241520933
Chicago: Humanities Style
Metin, Gülnur, and Okan Akyol. “Age, Growth and Mortality Rates of Symphodus tinca (Osteichthyes: Labridae) in Izmir Bay (NE Aegean Sea).” Aquatic Sciences and Engineering 39, no. 4 (Dec. 2024): 255-260. https://doi.org/10.26650/ASE20241520933
Harvard: Australian Style
Metin, G & Akyol, O 2024, 'Age, Growth and Mortality Rates of Symphodus tinca (Osteichthyes: Labridae) in Izmir Bay (NE Aegean Sea)', Aquatic Sciences and Engineering, vol. 39, no. 4, pp. 255-260, viewed 23 Dec. 2024, https://doi.org/10.26650/ASE20241520933
Harvard: Author-Date Style
Metin, G. and Akyol, O. (2024) ‘Age, Growth and Mortality Rates of Symphodus tinca (Osteichthyes: Labridae) in Izmir Bay (NE Aegean Sea)’, Aquatic Sciences and Engineering, 39(4), pp. 255-260. https://doi.org/10.26650/ASE20241520933 (23 Dec. 2024).
MLA
Metin, Gülnur, and Okan Akyol. “Age, Growth and Mortality Rates of Symphodus tinca (Osteichthyes: Labridae) in Izmir Bay (NE Aegean Sea).” Aquatic Sciences and Engineering, vol. 39, no. 4, 2024, pp. 255-260. [Database Container], https://doi.org/10.26650/ASE20241520933
Vancouver
Metin G, Akyol O. Age, Growth and Mortality Rates of Symphodus tinca (Osteichthyes: Labridae) in Izmir Bay (NE Aegean Sea). Aquatic Sciences and Engineering [Internet]. 23 Dec. 2024 [cited 23 Dec. 2024];39(4):255-260. Available from: https://doi.org/10.26650/ASE20241520933 doi: 10.26650/ASE20241520933
ISNAD
Metin, Gülnur - Akyol, Okan. “Age, Growth and Mortality Rates of Symphodus tinca (Osteichthyes: Labridae) in Izmir Bay (NE Aegean Sea)”. Aquatic Sciences and Engineering 39/4 (Dec. 2024): 255-260. https://doi.org/10.26650/ASE20241520933
