Istranca Deresi (İstanbul)’ndeki Tatlısu Kefalinin [Squalius cephalus (Linnaeus, 1758)] Yaş ve Büyüme Özellikleri
Bu çalışmada Istranca Deresi’nde yaşayan tatlısu kefali [Squalius cephalus (Linnaeus, 1758)] populasyonunun büyüme biyolojisi incelenmiştir. Mart 2012 ile Haziran 2013 tarihleri arasında dere üzerindeki 6 istasyondan aylık olarak elektroşok cihazı yardımıyla avcılık gerçekleştirilmiştir. Elde edilen S. cephalus bireylerinin boy, ağırlık, yaş, eşey dağılımları ve oranları, yaş-boy, yaş-ağırlık, boy-ağırlık ilişkileri, von Bertalanffy parametreleri, fulton kondisyon faktörü değerleri incelenmiştir. Türün yaş dağılımının 0 ile VII yaş grupları arasında değiştiği gözlenmiştir. Total boy değerleri tüm bireylerde 2,6-30,1 cm; ağırlık değerleri ise 0,14-352,50 g arasında değişmiştir. Dişi-erkek oranı 1:2,76 olarak saptanmıştır. Tüm bireylerde; boy-ağırlık ilişkisi W=0,0078TL3,15 olarak, von Bertalanffy büyüme parametreleri L∞, W∞, K ve t0 sırasıyla 42,18 cm, 1023,97 g, 0,137 ve -0,576 olarak belirlenmiştir. Tüm bireylerde aylara göre fulton kondisyon faktörü değeri en düşük 2013 Şubat ayında (0,908), en yüksek ise 2012 Haziran ayında (1,222) bulunmuştur.
Anahtar Kelimeler:
Tatlısu Kefali, Büyüme, Yaş, Fulton Kondisyon Faktörü, Istranca Deresi/Türkiye
Length, Weight and Age Characteristics of Chub [Squalius cephalus (Linnaeus, 1758)] in the Istranca Brook (İstanbul)
In this study, growth biology of chub [Squalius cephalus (Linnaeus, 1758)] population living in Istranca Brook has been studied. Sampling was carried out monthly in 6 sites on the stream by electrofishing between March 2012 and June 2013. Length, weight, age, sex distribution and ratios, age-length, age-weight, length-weight relationships, von Bertalanffy parameters, fulton condition factor values of S. cephalus individuals were investigated. Age distribution of the species varied between 0 and VII. Total length and weight values of all individuals varied between 2.6-30.1 cm and 0.14-352.50 g respectively. The femalemale ratio was 1:2.76. Length-weight relationship and von Bertalanffy growth parameters in all individuals were determined as W=0.0078TL3.15 and L∞, W∞, K and t0 as 42.18 cm, 1023.97 g, 0.137 and -0.576, respectively. Monthly fulton condition factor value in all individuals was lowest in February 2013 (0.908) and highest in June 2012 (1.222).
Keywords:
Chub, Growth, Age, Fulton Condition Factor, Istranca Brook/Turkey,
___
- Bagenal, T. (1978). Methods for Assessment of Fish Production in Freshwaters. Blackwell Scientific Publications, London, 365p. Bertalanffy, L.V. (1957). Quantitative Lows in Metabolism and Growth. O. Rev. Biology, 32 (3), 217-231.
- Berg, L.S. (1949). Freshwater Fishes of the U.S.S.R. and Adjacent Countrie. Academy of Science of the U.S.S.R. (Translated from Russian, Israel Program for Scientific Translations, Jerusselam, 1963, Vol.2, 496 p.
- Caffrey, M., Acevedo, S., Gallagher, K. & Britton, R. (2008). A New Potentially Invasive Fish Species in Ireland. Aquatic Invasions, 3 (2), 201-209.
- Cragg-Hine, D. & Jones, J.W. ( 1969). The Growth of Dace Leuciscus leuciscus (L.), Roach Rutilus rutilus (L.) and Chub Squalius cephalus (L.) in Willow Brook, Northamptonshire. Journal of Fish Biology, 1 (1), 59-82.
- DPT, Su Ürünleri Özel İhtisas Komisyonu Raporu.(2003). SÜMAE YUNUS Araştırma Bülteni, 3: 2, Haziran 2003.
- Fricke, R., Eschmeyer, W. N. & Van der Laan, R. (eds) .(2019). ESCHMEYER'S CATALOG OF FISHES: GENERA, SPECIES, REFERENCES. (http://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatmain.asp). Electronic version accessed 05 FEB 2019.
- Hamwi, N.I., Raikowa-Petrova, G. N. & Petrov, I.K. (2005). Age and Size Composition of Chub (Leuciscus cephalus L.) in the Middle Stream of the Iskar River, Bulgaria. Acta Zoologica Bulgarica, 57, 363-370.
- Hamwi, N.I., Raikowa-Petrova, G. N. & Petrov, I.K. (2007). Growth Rate, Condition and Mortality of Chub (Leuciscus cephalus) from the Middle Stream of the Iskar River (Bulgaria) and a Comparison with Populations from Another Water Bodies. Acta Zoologica Bulgarica, 59 (3), 325-335.
- Hellawell, J.M. (1971). The autecology on the chub, Squalius cephalus (L.), of the River Lugg and the Afon Llynfi. Freshwater Biology, 1 (1), 29-60.
- King, M. (2007). Fisheries Biology, Assesment and Management. Fishing News Book, Blackwell Publishing Ltd, Singapore. 978-1-4051-5831-2.
- Le Cren, E.D. (1951). The Lenght-Weight Relationships and Seasonal Cycle in Gonad Weight and Condition in Perch (Percafluviatilis). J. Anim. Ecol., 20, 210-219.
- Özuluğ, M. & Freyhof, J. (2011). Revision of the genus Squalius in Western and Central Anatolia, with description of four new species (Teleostei: Cyprinidae). Ichthyol. Explor. Freshwaters, 22 (2), 107-148.
- Philippart, J.Cl.(1972). Age Et Croissance Du Chevaine Leuciscus cephalus (L.) Dans L’ourthe Et La Berwine. Extrait des Annales de la Société Royale Zoologique de Belgique, 102 (1-2), 47-82.
- Raikowa-Petrova, G., Hamwi, N., & Petrov, I. (2012). Spawning, Sex Ratio and Relationship between Fecundity, Length, Weight and Age of Chub (Squalius cephalus L., 1758) in the Middle Stream of Iskar River (Bulgaria). Acta Zoologica Bulgarica, 64 (2), 191-197.
- Saç, G. & Özuluğ, M. (2014). Five new records for the fish fauna of Durusu Lake Basin (İstanbul). Journal of Fisheries Sciences.com, 8 (4), 291–297.
- Sedaghat, S. & Ahangari, W.D.P. (2012). Age and Growth of Chub, Squalius cephalus (Bonaparte, 1837), in Gamasiab River of the Hamadan Province, Iran. World Journal of Fish and Marine Sciences, 4 (6), 550-553.
- Slastenenko, E. (1956). Karadeniz Havzası Balıkları. Et ve Balık Kurumu Umum Müdürlüğü Yayınları, İstanbul, pp. 711.
- Şen, F. & Saygın, F. (2008). Biological Properties of Chub (Leuciscus cephalus L., 1758) in Karasu Stream (Muş/Turkey). Journal of Animal and Veterinary Advences,7 (8), 1034-1037.
- Treer, T., Sprem, N., Torcu-Koç, H., Sun, Y. & Piria, M. (2008). Lenght-Weight Relationships of Freshwater Fishes of Croatia. Journal of Applied Ichthyology, 24, 626-628.
- Vlach, P., Dusek, J., Svatora, M. & Moravec, P. (2005). Growth analysis of chub, Leuciscus cephalus (L.), and dace, Leuciscus leuciscus (L.), in the Upor stream using growth data of recaptured marked fish. Czech Journal of Animal Science, 50, 329-339.
- Yayın Aralığı: Yılda 2 Sayı
- Başlangıç: 2017
- Yayıncı: İstanbul Üniversitesi