A preliminary study on reproduction and larval development of swan mussel (Anodonta cygnea (Linnaeus, 1758) (Bivalvia: unionidae), in Lake Çıldır (Kars, Turkey)

In this research, reproduction time and larval development of Anodonta cygnea in Lake Çıldır during 2000-2002 were studied. The mean number of larvae (N) produced by each gravid female was about 115,000 and the mean shell length was (L) 99 mm (59.2-128.3). Best fitted relationship between the number of larvae and mussel length was found as N = 43.696*L1.68 (n = 34, r = 0.42). There was a weak relationship between the length of the mussel and the weight of gills full of larvae, as W = 0.0007 L1.958, r = 0.68 (P<0.01). The weakest relationship was found between length (LL) and height (HL) of larvae: HL = 0.2682LL + 256.47 (r = 0.23) (P<0.05). The duration of gravidity was observed from the end of July to June the following year.

Anahtar Kelimeler:

Türkiye, larva, parazitler, Kars, Bivalvia, vücut ölçümleri, tatlısu balıkları, midye, üreme

PDF

___

Barrington, E.J.W. 1967. Invertebrate structure and function. First published in Great Britain 1967. Thomas Nelson and Sons Ltd. Nairobi Kenya. 436–438.

Bauer, G. 2001. Framework and driving foces for the evolution of naiad life histories, In: G. Baver and K. Wächtler (Eds.), Ecology and Evolution of the Freshwater Mussels Unionoida, Ecological Studies. Springer - Verlag Berlin Heidelberg, 145: 233-255.

Cumming, K.S. and Mayer, C.A. 1992. Field guide to freshwater mussel of the Midwest Illions Natural History Survey Manuel, 5: 194 pp.

David, C.A. 1999. The morphology, growth and reproduction of Unıonidae (Bivalvia) in a fenland waterway, Journal Moll. Stud., 65: 47-60.

Fisher, G.R., Dimock, R.V.Jr. 2000. Viability of glochidia of Utterbackia imbecillis (Bivalvia: Unionidae) following their removel from the parental mussel, Proceeding of the first freshwater mollusk conservation society symposium. 1998. Ohio Biological Survey, Ohio: 185-188.

Jones, R. 1950. Propagation of fresh-water mussels, the progressive fish-culturist, U.S. Fish and wildlife service craborchard national wildlife refuge carterville. Illinois: 13-25.

Jansen, W., Bauer, G. and Meike-Zahner, E. 2001. Glochidial mortality in freshwater mussels. In: G. Baver and K. Wächtler (Eds.), Ecology and Evolution of the Freshwater Mussels Unionoida, Ecological Studies. Springer – Verlag Berlin Heidelberg, 145: 185-211.

King, M. 1995. fisheries biology assessment and management, editorial office, Osney Mead, Oxford OX2 0EL, Printed and bound in great Britain by Hartnols Ltd. Bodmin.

Patzner, A.R. and Müller, D. 2001. Effects of eutrophication on Unionids, In: G. Baver and K. Wächtler (Eds.), Ecology and Evolution of the Freshwater Mussels Unionoida, Ecological Studies. Springer - Verlag Berlin Heidelberg, 145: 327-335.

Vaughn, C.C. and Taylor, C.M. 2000. Macroecology of a host-parasite relationship. Ecography, 23: 11–20. Copenhagen.

Wächtler, K., Dreher-Mansur, M.C., Richter, T. 2001. Larval types and early postlarval biology in naiadas (unionoida), In: G. Baver and K. Wächtler (Eds.), Ecology and Evolution of the Freshwater Mussels Unionoida, Ecological Studies. Springer - Verlag Berlin Heidelberg, 145: 94-125.

Zhadin, V.I. 1952. Mollusks of fresh and brackish waters of the U.S.S.R. Published by the Israel Program for Scientific Translations, Jezusoleus, 368 pp.