Early Growth, Mortality, and Hatch Date of Juvenile Lithognathus mormyrus (Linnaeus, 1758) in the Southwestern Sea of Marmara

Mukadder Arslan İhsanoğlu; İsmail Burak Daban; Yusuf Şen

doi:10.18016/ksutarimdoga.vi.1962171

TR EN

Marmara Denizi’nin Güneybatısında Genç Lithognathus mormyrus (Linnaeus, 1758)’un Erken Dönem Büyümesi, Ölüm Oranı ve Yumurtadan Çıkışı

Abstract

Bu çalışmada, Marmara Denizi’nin güneybatısında Çardak Lagünü çevresindeki kıyısal sularda yaşayan juvenil Lithognathus mormyrus bireylerinin erken yaşam özellikleri araştırılmıştır. Örneklemeler, Eylül 2024–Ağustos 2025 tarihleri arasında üç sığ kıyısal istasyonda ığrıp ağı kullanılarak aylık olarak gerçekleştirilmiştir. Toplam 49 juvenil birey incelenmiş olup, bireylerin toplam boy dağılımının 1.7–9.4 cm arasında değiştiği belirlenmiştir. Ortalama toplam boy 4.6 cm olarak hesaplanmış ve en baskın boy grubunun 3 cm olduğu tespit edilmiştir. En büyük bireyler Haziran ayında gözlenirken, en yüksek birey sayısına Kasım ayında ulaşılmıştır. Otolit analizleri sonucunda günlük yaşların 30–130 gün arasında değiştiği ve en baskın grubun 40–59 günlük bireylerden oluştuğu belirlenmiştir. Yaş–boy ilişkisi y = 11.067x + 10.041 denklemi ile açıklanmış, ortalama günlük büyüme oranı ise 0.76±0.03 mm gün⁻¹ olarak hesaplanmıştır. Boy–ağırlık ilişkisi W = 0.0133L²•⁸⁹ şeklinde belirlenmiş ve büyümenin negatif allometrik olduğu tespit edilmiştir (p < .05). Günlük ölüm katsayısı 0.038 olarak hesaplanmıştır. Yumurtadan çıkış analizleri, yumurtadan çıkışın Şubat ayında başladığını ve Eylül ayında pik yaptığını göstermiştir. Sonuçlar, türün üreme aktivitesinin özellikle yaz sonu ve sonbahar başında yoğunlaştığını ortaya koymuştur. Bu çalışma, Marmara Denizi’nde juvenil L. mormyrus bireylerinin erken yaşam biyolojisi ve popülasyon dinamikleri hakkında temel veriler sunmaktadır.

Keywords

Early Growth, Mortality, and Hatch Date of Juvenile Lithognathus mormyrus (Linnaeus, 1758) in the Southwestern Sea of Marmara

Abstract

This study investigated the early life characteristics of juvenile Lithognathus mormyrus inhabiting the coastal waters surrounding Çardak Lagoon in the southwestern Sea of Marmara. Monthly samplings were conducted between September 2024 and August 2025 using a beach seine net at three shallow coastal stations. A total of 49 juvenile individuals ranging from 1.7 to 9.4 cm in total length were examined. The mean total length was determined as 4.6 cm, and the 3 cm size group was the dominant cohort. The largest individuals were observed in June, whereas the highest abundance was recorded in November. Otolith microstructure analysis indicated that daily ages ranged between 30 and 130 days, with the 40–59 day age group representing the dominant cohort. The age–length relationship was described by the equation y = 11.067x + 10.041, and the mean daily growth rate was estimated as 0.76±0.03 mm day⁻¹. The length–weight relationship was calculated as W = 0.0133L²•⁸⁹, indicating negative allometric growth (p < .05). The estimated daily mortality coefficient was 0.038. Hatching analysis revealed that hatching began in February and peaked in September, suggesting that reproductive activity mainly intensified during late summer and early autumn. This study provides baseline information on the early life biology and population dynamics of juvenile L. mormyrus in the Sea of Marmara.

Keywords

References

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Details

Primary Language

English

Subjects

Fish Biology

Journal Section

Research Article

Authors

Mukadder Arslan İhsanoğlu ^*
0000-0003-0072-5848
Türkiye

İsmail Burak Daban
0000-0002-2973-5698
Türkiye

Yusuf Şen
0000-0002-0595-4618
Türkiye

Early Pub Date

November 7, 2026

Publication Date

-

Submission Date

June 2, 2026

Acceptance Date

November 5, 2026

Published in Issue

Year 2026 Number: Advanced Online Publication

DOI

https://doi.org/10.18016/ksutarimdoga.vi.1962171

IZ

https://izlik.org/JA39RT98UG

Cite

RIS / Bibtex

APA

Arslan İhsanoğlu, M., Daban, İ. B., & Şen, Y. (2026). Early Growth, Mortality, and Hatch Date of Juvenile Lithognathus mormyrus (Linnaeus, 1758) in the Southwestern Sea of Marmara. Kahramanmaraş Sütçü İmam Üniversitesi Tarım Ve Doğa Dergisi, Advanced Online Publication. https://doi.org/10.18016/ksutarimdoga.vi.1962171

AMA

1.Arslan İhsanoğlu M, Daban İB, Şen Y. Early Growth, Mortality, and Hatch Date of Juvenile Lithognathus mormyrus (Linnaeus, 1758) in the Southwestern Sea of Marmara. KSU J. Agric Nat. 2026;(Advanced Online Publication). doi:10.18016/ksutarimdoga.vi.1962171

Chicago

Arslan İhsanoğlu, Mukadder, İsmail Burak Daban, and Yusuf Şen. 2026. “Early Growth, Mortality, and Hatch Date of Juvenile Lithognathus Mormyrus (Linnaeus, 1758) in the Southwestern Sea of Marmara”. Kahramanmaraş Sütçü İmam Üniversitesi Tarım Ve Doğa Dergisi, no. Advanced Online Publication. https://doi.org/10.18016/ksutarimdoga.vi.1962171.

EndNote

Arslan İhsanoğlu M, Daban İB, Şen Y (November 7, 2026) Early Growth, Mortality, and Hatch Date of Juvenile Lithognathus mormyrus (Linnaeus, 1758) in the Southwestern Sea of Marmara. Kahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi Advanced Online Publication

IEEE

[1]M. Arslan İhsanoğlu, İ. B. Daban, and Y. Şen, “Early Growth, Mortality, and Hatch Date of Juvenile Lithognathus mormyrus (Linnaeus, 1758) in the Southwestern Sea of Marmara”, KSU J. Agric Nat., no. Advanced Online Publication, Nov. 2026, doi: 10.18016/ksutarimdoga.vi.1962171.

ISNAD

Arslan İhsanoğlu, Mukadder - Daban, İsmail Burak - Şen, Yusuf. “Early Growth, Mortality, and Hatch Date of Juvenile Lithognathus Mormyrus (Linnaeus, 1758) in the Southwestern Sea of Marmara”. Kahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi. Advanced Online Publication (November 7, 2026). https://doi.org/10.18016/ksutarimdoga.vi.1962171.

JAMA

1.Arslan İhsanoğlu M, Daban İB, Şen Y. Early Growth, Mortality, and Hatch Date of Juvenile Lithognathus mormyrus (Linnaeus, 1758) in the Southwestern Sea of Marmara. KSU J. Agric Nat. 2026. doi:10.18016/ksutarimdoga.vi.1962171.

MLA

Arslan İhsanoğlu, Mukadder, et al. “Early Growth, Mortality, and Hatch Date of Juvenile Lithognathus Mormyrus (Linnaeus, 1758) in the Southwestern Sea of Marmara”. Kahramanmaraş Sütçü İmam Üniversitesi Tarım Ve Doğa Dergisi, no. Advanced Online Publication, Nov. 2026, doi:10.18016/ksutarimdoga.vi.1962171.

Vancouver

1.Mukadder Arslan İhsanoğlu, İsmail Burak Daban, Yusuf Şen. Early Growth, Mortality, and Hatch Date of Juvenile Lithognathus mormyrus (Linnaeus, 1758) in the Southwestern Sea of Marmara. KSU J. Agric Nat. 2026 Nov. 7;(Advanced Online Publication). doi:10.18016/ksutarimdoga.vi.1962171