Comparisons of various bony structures for the age determination of Liza ramada (Risso, 1826) population from the Mersin Bay

Mersin Körfezi'ndeki Liza ramada (Risso, 1826) populasyonunda farklı kemiksi yapılar kullanılarak yapılan yaş tayini sonuçlarının karşılaştırılması. Mersin Körfezinden Ekim 1997 ile Ocak 1998 tarihleri arasında yakalanan 120 adet Liza ramada'nın yaşı otolit, omur, operkül, pul, dorsal yüzgeç ışını kullanılarak belirlenmiş ve karşılaştırmaları yapılmıştır. L ramada'üa yaşın en iyi belirlendiği kemiksi yapının dorsal yüzgeç ışını olduğu bulunmuştur. Bunu sırasıyla pul, omur, otolit ve operkül izlemiştir. Populasyonda yaş dağılımı genellikle 2-8 arasında olup 6. yaş grubunda daha fazla birey bulunmuştur. Ancak 1,9 ve 10. yaşlarda olan bireylere de rastlanılmıştır.

Anahtar Kelimeler:

Mersin, Türkiye, yaş saptanması

Mersin Körfezi' ndeki Liza Ramada (Risso, 1826) populasyonunda farklı kemiksi yapılar kullanılarak yapılan yaş tayini sonuçlarının karşılaştırılması

A total of 120 Mullet Liza ramada [Risso, 1826] were caught in the Mersin Bay of the Mediterranean Sea from October 1997 to January 1998. Age determinations were made by different methods using scales, otoliths, opercular bones, vertebrae and dorsal fin rays. It was understood that dorsal fin rays were the best bony structure for the age determination of L ramada followed by scales, vertebrae, otoliths and opercular bones. The mullets sampled throughout the study were generally between 2 and 8 years-old. Six years-old fish were dominant in the population. Yet, individuals at 1, 9 or 10 years of age were also found in the samples.

Keywords:

Mersin, Turkey, age determination,

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Astanin, L. P. 1974. Ob. Opredelenii Vozrasta Rybpo Kostyum. Age Determination in Fish From Bones. Zoologicheskii Zhurnal. 26 (3).

Burnet, A. M. R. 1969. An Examination of the Use of Scales and Fin Rays for Age Determination of Brown Trout (Salmo trutta L). New Zealand Journal of Marine and Freshwater Research. 3 (1): 147-151.

Beamish, R. J. 1979. Differences in the Age of Pacific Hake {Meriuccius productus) Using Whole Otoliths and Sections of Otoliths. 36 (2): pp. 141-151.

Beamish, R. J. and D. E. Chilton. 1982. Preliminary Evaluation of a Method to Determine the Age ofSablefish (Anaploma fimbria). Can. J. Fish. Aquat. Sci. 39:277-287.

Bilton, H. T. and D. W. Jenkinson. 1969. Age Determination of Sockeye {Oncorhyncus nerka) and Chum (0. Keta) Salmon from Examination of Pectoral Fin Rays. J. Fish. Res. Bd. 26:1199-1203.

Casselman, J. M. 1987. Determination of Age and Growth: The Biology of Fish Growth, A.H. Weatherley and H. S. Gill (Editors), Academic Press. pp. 209-242. London.

Chugunova, N. 1.1963. Age and Growth Studies in Fish. National Science Foundation, Washington. 132 p.

Ekingen, G. and N. Polat. 1987. Age Determination and Length-Weight Relations of Capoeta capoeta umbla (Heckel, 1843) in Lake Keban. Tu. J. Zoology. 11(1): 5-15

Erman, F. 1959. Observations on the Biology of the Common Grey Mullet {Mugil cephalus). Proc. Tech. Gen. Fish. Counc. Mediterr. 5:157-69.

Lagler, K. F. 1952. Freshwater Fishery Biology. Wm. C. Brown Co. 421 p., Iowa, U.S.A.

Lux, F. E. 1971. Age Determination of Fishes, U. S. Dept. Of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Fishery Leaflet. 637.

Özdemir, N. and D. Şen. 1986. Age Determination By Scale, Vertebra and Operculum of Leuciscus cephalus orientalis (Nordmann, 1840) in the Euphrates. The Journal of Fırat University. 1 (1): 101-111.

Polat, N. 1987 a. Age Determination Methods of Barbus rajanorum mystaceus (Heckel, 1843) Living in Keban Dam Lake (in Turkish). VIII. National Biology Kongress, 2:575-588.

Polat, N. 1987 b. Age Determination of Capoeta trutta (Heckel, 1843) in Keban Dam Lake. Tu. J. Zooloji. 11(3).

Polat, N. and A. Kukul. 1990. Age Determination Methods of Trachurus trachurus in Blacksea (in Turkish). Xth National Biology Kongress, Erzurum, pp. 217-224.

Prather, E. E. 1967. A Note on the Accuracy of the Scale Method in Determining the Ages of Largemouth Bass and Bluegill from Alabama Waters. Proceedings of the Twentieth Annual Conference Southeastern Association of Game and Fish Commissioners, Auburn, Alabama, pp. 483486.

Quignard, J. P. and O. H. Farrugio. 1981. Age and Growth of Grey Mullet, In: Aquaculture of Grey Mullets, O. H. Oren (Editor). Cambridge University Press, Cambridge, pp. 155-184.

Rounsfell G. A. and W. H. Everhart. 1953. Fishery Science: Its Methods and Applications. 444 p.

Tesch, F. W. 1968. Age and Growth. Methods for Assessment of Fish Production in Fresh Waters, W. E. Ricker (Editor), IBP Handbook No:3, Blackwell Scientific Publications Oxford and Edinburgh, pp. 93-123.