Length-Weight, Length-Length Relationships and Condition Factor of Picarel, Spicara smaris (Linnaeus, 1758) Sampled from Aegean Sea and Black Sea

Year 2024, Volume: 6 Issue: 2, 1 - 8

Melek Özpiçak , Gülsimay İbitürk

https://doi.org/10.55213/kmujens.1478476

Abstract

In this study, length-weight relationship (LWR), length-length relationship (LLR) and condition factor (K) of Spicara smaris (Linnaeus, 1758) collected from Aegean Sea and Black Sea during 2023-2024 fishing season were determined. A total of 116 samples (Aegean Sea N=56, Black Sea N=50) were obtained from commercial fishermen. The mean (±SD) total length and weight of samples varies between 15.47±0.98 cm, 34.82±6.45 g, and 12.35±1.40 cm, 20.01±8.93 g for Aegean and Black Sea, respectively. The slopes (b values) of the total length–weight regressions indicated (-) negative allometric growth to (+) positive allometric growth in localities. In addition, LLRs were calculated by using the linear regression model. LLRs were also highly significant (P<0.001) with coefficient of determination (R2) ranging from 0.748 to 0.975. Tthe Fulton’s condition factor was calculated according to localities and sex, separately, and when the two localities were compared in terms of condition factors, a significant difference was found between them (F=7.699, P=0.007).

Keywords

Picarel, length-weight relationship, length-weight relationship, condition factor, Türkiye

Project Number

TUBITAK (2209 A-Project ID: 1919B012301490)

Ege Denizi ve Karadeniz’den Örneklenen izmarit, Spicara smaris (Linnaeus, 1758)’in Boy-Ağırlık, Boy-Boy İlişkileri ve Kondisyon Faktörü

Abstract

Bu çalışmada, 2023-2024 av sezonunda Ege Denizi ve Karadeniz'den örneklenen Spicara smaris (Linnaeus, 1758)’in boy-ağırlık ilişkisi (LWR), boy-boy ilişkisi (LLR) ve kondisyon faktörü (K) belirlenmiştir. Toplamda 116 (Ege Denizi N=56, Karadeniz N=50) örnek ticari balıkçılardan temin edilmiştir. Örneklerin ortalama (±SD) total boyları ve ağırlıkları Ege ve Karadeniz için sırasıyla 15,47±0,98 cm, 34,82±6,45 g ve 12,35±1,40 cm, 20,01±8,93 g arasında değişmektedir. Boy-ağırlık regresyonlarının eğimleri (b değerleri), lokalitelerde (-) negatif allometrik büyümeden (+) pozitif allometrik büyümeye kadar değişmiştir. Ayrıca doğrusal regresyon modeli kullanılarak LLR'ler hesaplanmıştır. Ayrıca Boy-boy ilişşkileri 0,748 ile 0,975 arasında değişen belirleme katsayısılarına (R2) bağlı olarak önemli bulunmuştur (P<0,001). Fulton’un kondisyon faktörü lokalitelere ve cinsiyete göre ayrı ayrı hesaplanmış ve iki lokalite kondisyon faktörleri açısından karşılaştırıldığında aralarında anlamlı fark bulunmuştur (F=7.699, P=0.007).

Keywords

İzmarit, boy-ağırlık ilişkisi, boy-boy ilişkisi, kondisyon faktörü, Türkiye

Supporting Institution

TUBITAK

Project Number

TUBITAK (2209 A-Project ID: 1919B012301490)

Thanks

The authors are deeply grateful to TUBITAK (2209 A-Project ID: 1919B012301490). This study was supported by TUBITAK (2209 A-Project ID: 1919B012301490).

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