Gülnur METİN, Şahin SAKA, Kürşat FIRAT, Deniz ÇOBAN

Daily Microgrowth Increments in Otoliths of Common Dentex (Dentex dentex Linneaus, 1758) Larvae Reared in Culture Conditions

Daily microgrowth was determined in the otoliths of common dentex (Dentex dentex, Linneaus, 1758) larvae reared in 24 h illumination culture conditions. Microgrowth in otoliths was measured from the first mouth-opening stage of larvae on day 3 to the end of the larval stage on day 32. The sagitta and lapillus were present and were equal in size in newly hatched larvae, but the sagitta grew faster than the lapillus during further larval development. The first size increments in otoliths were observed at 4.25-4.99 mm total length of larvae (day 11). Structural development of the rostrum edge occurred on the sagitta on day 25. A polynomial relationship was found in daily lapillus growth and daily sagitta growth. This relationship was more pronounced daily lapillus growth compared to daily sagitta growth (P < 0.05). A strong positive allometry was found between sagitta and lapillus growth (r = 0.89) and between total length and lapillus growth (r = 0.98). Overall, the results obtained until the metamorphosis stage showed that there is a positive allometric relationship between total length and daily growth increments in otoliths of this species.

Anahtar Kelimeler:

Common dentex, Dentex dentex, otolith, daily growth, larvae

Daily Microgrowth Increments in Otoliths of Common Dentex (Dentex dentex Linneaus, 1758) Larvae Reared in Culture Conditions

Keywords:

Common dentex, Dentex dentex, otolith, daily growth, larvae,

PDF

___

Bauchot, M.L., Hureau, J.C.: Sparidae. In: Whitehead, P.J.P., Bauchot, M.L., Hureau, J.C., Nisen, J., Tortonese, E. (eds.) Fishes of the North-Eastern Atlantic and the Mediterranean, Vol. II. UNESCO, Great Britain, 1986; pp: 883-907. 2. Pavlidis, M., Greenwood, L., Mourot, B., Kokkari, C., Le Menn, F., Divanach, P., Scott, A.P.: Seasonal variations and maturity stages in relation to differences in serum levels of gonadal steroids, vitellogenin and thyroid hormones in the common dentex (Dentex dentex). Gen. Comp. Endocrinol., 2000; 118: 14-25. 3.
Fırat, K., Saka, fi., Çoban, D.: The effect of light intensity on early
life development of the common dentex (Dentex dentex L. 1758)
larvae. Aquaculture Research, 2003; 34: 727-732.
Pastor, E., Riera F., Pou S., Grau A., Pittman K., Batty R., Verreth J.: Summary of investigations on reproduction and larval rearing of common dentex, Dentex dentex (L.). ICES Mar. Sci. Symp. 1995; 201: 148-152.
Company, R., Calduch-Giner, J.A., Pérez-Sánchez, J., Kaushik, S.J.: Protein sparing effect of dietary lipids in common dentex (Dentex dentex): a comparative study with sea bream (Sparus aurata), and sea bass (Dicentrarchus labrax). Aquat. Living Resour., 1999; 12: 23-30.
Mourente, G., Rodríguez, A., Grau, A., Pastor, E.: Utilization of lipids by Dentex dentex L. (Osteichthyes: Sparidae) larvae during lecitotrophia and subsequent starvation. Fish Physiol. Biochem., 1999; 21: 45-58.
Efthimiou, S.: Dietary intake of Beta-1.3/1.6 glucans in juvenile Dentex (Dentex dentex). Sparidae–Effects on growth performance mortalities and non-specific defense mechanisms. J. Appl. Ichthyol., 1996; 12: 1-7.
Koumoundouros, G., Divanach, P., Kentouri, M.: The effect of rearing conditions on development of saddleback syndrome and caudal fin deformities in Dentex dentex (L.). Aquaculture, 2001; 200: 285-304.
Carlstrom, D.: A crystallographic study of vertebrate otoliths. Biol. Bull. Marine Biol. Lab. Woods Hole, 1963; 125: 441-463.
Sokolowski, B.H.A., Popper, A.N.: Gross and ultrastructural development of the saccule of the toad fish, Opsanus tau. J. Morphol., 1987; 194: 323-348.
Jones, C.: Determining age of larval fish with the otolith increment technique. Fish. Bull., 1986; 84: 91-103.
Campana, S.E., Neilson, J.D.: Microstructure of fish otoliths. Can. J. Fish. Aquat. Sci., 1985; 42: 1014-1032.
Mosegaard, H., Svedang, H., Taberman, K.: Uncoupling of somatic and otolith growth rates in Arctic char (Salvelinus alpinus) as an effect of differences in temperature response. Can. J. Fish. Aquat. Sci., 1988; 45; 1514-1524.
Moksness, E.: Otolith microstructure: a new method in recruitment studies and management of herring (Clupea sp.). Ph. D. Dissertation. University of Bergen, Norway. 1992.
Radtke, R.L.: Formation and Structural Composition of Larval Striped Mullet Otoliths. Transaction of the American. Fisheries Society, 1984; 113-122.
Radtke, R.L., Dean, J.M.: Increment formation in otoliths of embryos, larvae and juveniles of mummichog (Fundulus heteroclitus). US Nat. Marine Fish. Serv. Fish. Bull., 1982; 80: 41-55.
Re, P., Rosa, H.C., Dinis, M.T.: Daily microgrowth increments in sagittae of Dicentrarchus labrax larvae under controlled conditions. Inv. Pesg., 1986; 50; 397-402.
Metin, G., Süzer, C., Kınacıgil, T., İlkyaz, A.: Çipura (Sparus aurata L.) larvalarında otolitlerin günlük geliflimi. Ege Üniv. Su Ürün. Derg., 2001; 18: 3-4.
Secor, D.H, Dean, J.M., Baldevarona, R.B.: Comparison of otolith- based back-calculation methods to determine individual growth histories of larval striped bass, Morone saxatilis. Can. J. Fish. Aquat. Sci. 1989; 49: 1439-1454.
Lagardere, F., Troadec, H.: Age estimation in common sole, Solea solea larvae: validation of daily increments and evaluation of a pattern recognition technique. Mar. Ecol. Prog. Ser., 1997; 155: 223-237.
Itoh, T., Shiina, Y., Tsuji, S., Endo, F., Tezuka, N.: Otolith daily increment formation in laboratory reared larval and juvenile bluefin tuna Thunnus thynnus. Fish. Sci., 2000; 66: 834-839.
Geffen, A.J.: Otolith ring deposition in relation to growth rate in herring (Clupea harengus) and turbot (Scophthalmus maximus) larvae. Marine Biol., 1982; 71: 317-326.
Machias, A., Maraveyia, E., Pavlidis, M., Somarakis, S., Divanach, P.: Validation of annuli on scales and otoliths of common dentex (Dentex dentex). Fish. Res., 2002; 54: 287-294.
Sokal, R., Rohlf, F.J.. Biometry. W.H. Freeman Co., San Francisco. 1981.
Saygı, H.: İzmir Körfezindeki Kirliliğin İstatistiksel Bir Modelle İncelenmesi. Ege Üniversitesi, Fen Bilimleri Enstitüsü. Yüksek Lisans Tezi. İzmir. 2000.
Brothers, E.B., Mathews, C.P., Lasker, R.: Daily growth increments in otoliths from larval and adult fishes. Fish. Bull., 1976, 74: 1-8.
Methot, R.E., Kramer, D.: Growth of northern anchovy Engraulis engrasicholus larvae in the sea. Fish. Bull., 1979; 77: 413-423.
Alvarez, F., Morales-Nin, B.: An attempt to determine growth and hatching dates of juvenile sardine, Sardina pilchardus, in the Western Mediterranean Sea. Marine Biol., 1992; 114: 199-203.
Re, P., Rosa, H.C.: Daily microgrowth increments in otoliths of Solea senegalensis Kaup larvae reared in the laboratory. Cienc. Biol. Ecol. Syst., 1988; 8: 37-41.
Wang, Y-T., Tzeng, W-N.: Differences in growth rates among cohorts of Encrasicholina punctifer and Engraulis japonicus larvae in the coastal waters off Tanshui River Estuary, Taiwan, as indicated by otolith microstructure analysis. J. Fish Biol., 1999; 54: 1002-1016.