Growth and Mortality Assessments of European pilchard Sardina pilchardus (Walbaum, 1792) in the Southern Aegean Sea

Dilek Nazlı; Ali Uyan

Growth and Mortality Assessments of European pilchard Sardina pilchardus (Walbaum, 1792) in the Southern Aegean Sea

Abstract

This study evaluated the length-weight relationship, age structure, growth parameters, mortality rates, and exploitation status of the European pilchard, Sardina pilchardus, from the Didim coast of the southern Aegean Sea. A total of 402 individuals were examined, comprising 252 females (62.69%) and 150 males (37.31%). Total length ranged from 8.00 to 16.20 cm in females and from 8.50 to 15.40 cm in males. Length-weight relationships indicated negative allometric growth in females (b = 2.735), males (b = 2.724), and all individuals (b = 2.739). Sagittal otolith readings revealed age groups 0-IV, with age group II dominating the pooled sample. The von Bertalanffy growth parameters were estimated as L∞ = 22.60 cm, k = 0.15 yr-1, and t0 = -2.01 yr for females; L∞ = 20.62 cm, k = 0.17 yr-1, and t0 = -3.15 yr for males; and L∞ = 20.07 cm, k = 0.20 yr-1, and t0 = -2.84 yr for all individuals. Total, natural, and fishing mortality rates were Z = 0.32 yr-1, M = 0.31 yr-1, and F = 0.01 yr-1, respectively, with an exploitation rate of E = 0.04. These values indicate a low contribution of fishing mortality to total mortality during the study period. This study provides the first assessment of the growth and mortality parameters for S. pilchardus along the Didim coast and a regional reference for future population and exploitation assessments in the southern Aegean Sea.

Keywords

References

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Details

Primary Language

English

Subjects

Marine and Estuarine Ecology, Freshwater and Marine Ecology

Journal Section

Research Article

Authors

Dilek Nazlı ^*
0000-0002-3888-3377
Türkiye

Ali Uyan
0000-0001-9308-3324
Türkiye

Early Pub Date

October 30, 2026

Publication Date

October 31, 2026

Submission Date

October 12, 2026

Acceptance Date

October 24, 2026

Published in Issue

Year 2026 Volume: 1 Number: 1

IZ

https://izlik.org/JA43WD44HT

Cite

RIS / Bibtex

APA

Nazlı, D., & Uyan, A. (2026). Growth and Mortality Assessments of European pilchard Sardina pilchardus (Walbaum, 1792) in the Southern Aegean Sea. Marine Science and Environmental Research, 1(1), 30-46. https://izlik.org/JA43WD44HT

AMA

1.Nazlı D, Uyan A. Growth and Mortality Assessments of European pilchard Sardina pilchardus (Walbaum, 1792) in the Southern Aegean Sea. Mar. Sci. Environ. Res. 2026;1(1):30-46. https://izlik.org/JA43WD44HT

Chicago

Nazlı, Dilek, and Ali Uyan. 2026. “Growth and Mortality Assessments of European Pilchard Sardina Pilchardus (Walbaum, 1792) in the Southern Aegean Sea”. Marine Science and Environmental Research 1 (1): 30-46. https://izlik.org/JA43WD44HT.

EndNote

Nazlı D, Uyan A (October 1, 2026) Growth and Mortality Assessments of European pilchard Sardina pilchardus (Walbaum, 1792) in the Southern Aegean Sea. Marine Science and Environmental Research 1 1 30–46.

IEEE

[1]D. Nazlı and A. Uyan, “Growth and Mortality Assessments of European pilchard Sardina pilchardus (Walbaum, 1792) in the Southern Aegean Sea”, Mar. Sci. Environ. Res., vol. 1, no. 1, pp. 30–46, Oct. 2026, [Online]. Available: https://izlik.org/JA43WD44HT

ISNAD

Nazlı, Dilek - Uyan, Ali. “Growth and Mortality Assessments of European Pilchard Sardina Pilchardus (Walbaum, 1792) in the Southern Aegean Sea”. Marine Science and Environmental Research 1/1 (October 1, 2026): 30-46. https://izlik.org/JA43WD44HT.

JAMA

1.Nazlı D, Uyan A. Growth and Mortality Assessments of European pilchard Sardina pilchardus (Walbaum, 1792) in the Southern Aegean Sea. Mar. Sci. Environ. Res. 2026;1:30–46.

MLA

Nazlı, Dilek, and Ali Uyan. “Growth and Mortality Assessments of European Pilchard Sardina Pilchardus (Walbaum, 1792) in the Southern Aegean Sea”. Marine Science and Environmental Research, vol. 1, no. 1, Oct. 2026, pp. 30-46, https://izlik.org/JA43WD44HT.

Vancouver

1.Dilek Nazlı, Ali Uyan. Growth and Mortality Assessments of European pilchard Sardina pilchardus (Walbaum, 1792) in the Southern Aegean Sea. Mar. Sci. Environ. Res. [Internet]. 2026 Oct. 1;1(1):30-46. Available from: https://izlik.org/JA43WD44HT