Diversification of narrow-clawed crayfish (Pontastacus leptodactylus Eschscholtz, 1823) populations from different parts of Turkey
Abstract
The present study was to evaluate diversification of crayfish populations based on length and weight measurements. Crayfish were collected from natural stock with fyke-net at five different populations of Turkey in the lakes Iznik (IL), Egirdir (EL) and Sera (SL) as well as Hirfanlı Dam Lake (HD) and Keban Dam Lake (KL) from June to July, 2008. The mean length, weight and hepatopancreas moisture content (HM, %) of the individuals sampled from different regions were found in order from largest to smallest as EL>HD>KL>IL>SL, EL>HD>KL>SL>IL and IL>KL>HD>KL>SL, respectively. In this study the median value of b coefficient, describing growth type from length-weight relationship, of five populations was 3.08, and fifty percent of the values were fell between 2.72 and 3.75. The growth types in these populations were determined as isometric, except in Keban Dam Lake (positive allometric). DFA (Discriminant Function Analysis) showed that there were no significant differences among the populations, meanwhile 53.06 % dissimilarities between populations was driven by length and HP with the contribution of 60.18% and 39.82% (based on SIMPER analysis), respectively. Although results from b coefficients, HM values and DF analysis of populations may reveal that their environmental conditions and growth types were similar in a certain extent, many more data taken from at least one-year sampling period is highly recommended for better understanding on factors that influenced the growth of its crayfish structure.
Keywords
Kaynakça
- Aiken, D. E. & Waddy, S. L. (1987). Molting and growth in crayfish: a review. Canadian Technical Report of Fisheries and Aquatic Sciences, 1587: 1-89.
- Aksu, Ö. & Kurt Kaya, G. (2017). The relationships between length-weight, and meat yield of freshwater crayfish (Astacus leptodactylus Eschscholtz, 1823) of Aktaş Lake. Journal of Balıkesir University Institute of Science and Technology, 19 (2): 283-295. (In Turkish)
- Anastasiadou, C., Liasko, R. & Leonardos, I. D. (2008). Biometric analysis of lacustrine and riverine populations of Palaemonetes antennarius (H. Milne-Edwards, 1837) (Crustacea, Decapoda, Palaemonidae) from North-western Greece. Limnologica, 39(3): 244-254.
- Aydin, H., Harlioglu, M. M. & Deniz, T. (2015). An investigation on the population parameters of freshwater crayfish (Astacus leptodactylus Esch., 1823) in Lake Iznik (Bursa). Turkish Journal of Zoology, 39: 660-668.
- Balık, İ., Çubuk, H., Özkök, R. & Uysal, R. (2005). Some Biological Characteristics of Crayfish (Astacus leptodactylus Eschscholtz, 1823) in Lake Eğirdir. Turkish Journal of Zoology, 29: 295-300.
- Balık, S., Ustaoğlu, M. R., Sarı, H. M. & Berber, S. (2005). Determination of traits some growth and morphometric of crayfish (Astacus leptodactylusEschscholtz, 1823) at Demirköprü Dam Lake (Manisa). Ege Journal of Fisheries and Aquatic Sciences, 22(1): 83-89. (In Turkish)
- Baltacı, M. A. (2018). Determination of Morphometrics and Growth Parameters of Crayfish (Astacus leptodactylus Eschscholtz, 1823) Population in Lake Sapanca, Turkey. MSc Thesis, Kocaeli University, 52 p. (In Turkish)
- Benzie, J. A. H. (2005). Guides to the identification of the microinvertebrates of the continental waters of the world. Backhyus Publishers, Leiden, The Netherlands. 376 p.
Ayrıntılar
Birincil Dil
İngilizce
Konular
Balıkçılık Yönetimi
Bölüm
Araştırma Makalesi
Yazarlar
Yavuz Mazlum
*
0000-0003-0468-7295
Türkiye
Abdullah Öksüz
Bu kişi benim
0000-0001-8778-9320
Yayımlanma Tarihi
31 Aralık 2019
Gönderilme Tarihi
8 Kasım 2019
Kabul Tarihi
17 Aralık 2019
Yayımlandığı Sayı
Yıl 2019 Cilt: 1 Sayı: 1