Age, Growth and Reproductive Period of White Bream, Blicca bjoerkna (L., 1758) in Lake Ladik, Turkey
Öz
The white bream, Blicca bjoerkna (L., 1758) specimens (n=434) were collected from Lake Ladik between November 2009 and October 2010 in order to determine the age, growth, and reproductive season. Fork lengths and weights of these samples varied between 11.5-24.3 cm and 22.80-259.00 g, respectively. Age estimates obtained from scales and vertebrae were compared to determine the most reliable bony structure for ageing. The precision analyses indicated that scales were the most appropriate hard structures for determining the age of white bream. Ages of all the specimens ranged from I to VI years and age group III was dominant. The parameters of the von Bertalanffy growth equations were calculated as L∞ = 32.85 cm, W∞ = 707.76 g, k = 0.11 year-1 and t0 = -2.64 year, and the growth performance index (Φ') value was computed as 2.074 for combined sexes. Fork length-weight relationship was found to be W = 0.0066 FL3.317. The mean condition factor was the highest in August and the lowest in October. The gonadosomatic index values showed that the reproduction occurred between May and June.
Anahtar Kelimeler
Kaynakça
- Abecasis D, Bentes L, Coelho R, Correia C, Lino PG, Monteiro P, Gonçalves JMS, Ribeiro J, Erzini K. 2008. Ageing seabreams: a comparative study between scales and otoliths. Fish Res. 89(1):37-48. doi: 10.1016/j.fishres.2007.08.013
- Bagenal TB, Tesch FW. 1978. Age and growth. In: Bagenal TB, editor. Methods for assessment of fish production in freshwaters. Oxford: Blackwell Science Publication. p. 101-136.
- Balık S, Ustaoğlu MR, Sarı HM. 1999. Investigations on growth and reproduction characteristics of white bream (Blicca bjoerkna L., 1758) population in Lake Kuş (Bandırma). Istanbul Uni J Aquat Prod. Special Issue:223-231. [in Turkish]
- Bartoszewicz M, Zalewski A. 2003. American mink, Mustela vison diet and predation on waterfowl in the Słońsk Reserve, Western Poland. Folia Zool. 52(3):225-230.
- Beamish RJ, Fournier DA. 1981. A method for comparing the precision of a set of age determinations. Can J Fish Aquat Sci. 38(8):982-983. doi: 10.1139/F81-132
- Chang WYB. 1982. A statistical method for evaluating the reproducibility of age determination. Can J Fish Aquat Sci. 39(8):1208-1210. doi: 10.1139/f82-158
- Chugunova NI. 1963. Age and Growth Studies in Fish. Washington: National Science Foundation. 132 p.
- DeVries DR, Frie RV. 1996. Determination of age and growth. In: Murphy BR, Willis DW, editors. Fisheries techniques. 2nd edition. Maryland: American Fishery Society. p. 483-512.
Ayrıntılar
Birincil Dil
İngilizce
Konular
-
Bölüm
Araştırma Makalesi
Yayımlanma Tarihi
20 Nisan 2015
Gönderilme Tarihi
8 Ocak 2015
Kabul Tarihi
17 Mart 2015
Yayımlandığı Sayı
Yıl 2015 Cilt: 1 Sayı: 1
Cited By
Ladik Gölü (Samsun)’nde Yaşayan Turna Balığı (Esox lucius L., 1758)’nda Yaş Tayini İçin Farklı Kemiksi Yapıların Değerlendirilmesi
Journal of Limnology and Freshwater Fisheries Research
https://doi.org/10.17216/limnofish.279725