New Locality Record and Length–Weight Relationships of Black-striped Pipefish (Syngnathus abaster) in Sarıçay Stream (Milas, Muğla, Türkiye)

Öz

This study found a new locality (Sarıçay Stream, Milas, Muğla) of Syngnathus abaster, morphometric and some biometric features were examined in April 2024. The water characteristic was found to be fresh to brackish, with a salinity of 3 ppt. The temperature was 18.2 oC during the sampling activity. One-time sampling was carried out in April 2024. Totally, 114 S. abaster specimens were collected in 10 minutes of hand scooping. The average total length and weight for males were 8.44  1.04 cm (range, 6.46-10.50 cm) and 0.43  0.19 g (range, 0.15 - 0.91 g), respectively, while the females had 7.49  1.32 cm (range, 5.06-9.45 cm) and 0.24  0.12 g (range, 0.06-0.53 g). The whole specimen resulted in a length-weight relationship (LWR) equation as W = 0.0004. L3.15 (R2 = 0.93). The equation was W = 0.0003.L3.45 (R2 = 0.84) for the males, W = 0.0008.L2.77 (R2 = 0.85) for the females, and W = 0.003.L3.68 (R2 = 0.76) for immature individuals. The allometric condition factor for males was calculated as 0.047  0.008 and 0.039  0.008 for females. The study provided important information on habitat use and species distribution in the region, creating a solid basis for future ecological research.

Anahtar Kelimeler

• Syngnathidae
• Biometric feature
• Condition factor
• Brackish water

Siyah Çizgili Deniziğnesi (Syngnathus abaster)’nin Sarıçay Deresi’nde (Milas, Muğla, Türkiye) Yeni Lokalite Kaydı ve Boy–Ağırlık İlişkileri

Öz

Bu çalışmada Syngnathus abaster türüne ait yeni bir lokalite (Sarıçay Deresi, Milas, Muğla) tespit edilmiş ve Nisan 2024’te yapılan tek örnekleme ile bazı morfometrik ve biyometrik özellikleri incelenmiştir. Su özellikleri, 3 ppt tuzluluk ile tatlıdan acı suya geçişli bir yapı göstermiştir. Örnekleme sırasında su sıcaklığı 18,2 °C olarak ölçülmüştür. Nisan 2024’te tek seferlik örnekleme yapılmış ve öğle saatlerinde 10 dakikalık el kepçesiyle yapılan avcılık sonucu 114 adet S. abaster bireyi toplanmıştır. Erkek bireylerin ortalama toplam boyu 8,44 ± 1,04 cm (aralık: 6,46–10,50 cm) ve ağırlığı 0,43 ± 0,19 g (aralık: 0,15–0,91 g) olarak hesaplanırken, dişi bireylerde bu değerler sırasıyla 7,49 ± 1,32 cm (aralık: 5,06–9,45 cm) ve 0,24 ± 0,12 g (aralık: 0,06–0,53 g) olarak belirlenmiştir. Tüm örnekler üzerinden elde edilen boy-ağırlık ilişki (BAİ) W = 0,0004·L3,15 (R² = 0,93) bulunmuştur. Erkekler için W = 0,0003·L3,45 (R² = 0,84), dişiler için W = 0,0008·L2,77 (R² = 0,85), ve erginaltı (juvenil) bireyler için W = 0,003·L3,68 (R² = 0,76) olarak hesaplanmıştır. Allometrik kondisyon faktörü erkeklerde 0,047 ± 0,008, dişilerde ise 0,039 ± 0,008 olarak bulunmuştur. Bu çalışma, bölgedeki habitat kullanımı ve tür dağılımı hakkında önemli bilgiler sunarak gelecekteki ekolojik araştırmalar için sağlam bir temel oluşturmuştur.

Anahtar Kelimeler

• Syngnathidae
• Biyometrik özellik
• Kondisyon Faktörü
• Acı Su

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