Nuri BAŞUSTA, Asiye BAŞUSTA, Emrah DEMİROĞLU

Length-Weight Relationships and Condition Factor of Umbrina Cirrosa Inhabiting North-Eastern Mediterranean Sea

In this study, total length-weight relationships and condition factor of shi drum (Umbrina cirrosa) were examined in the North-eastern Mediterranean Sea. Umbrina cirrosa individuals were captured by gillnets between May 2017- April 2018 at a depth of 15 m from Mersin Bay. A total of 218 (115 male and 103 female) U. cirrosa were collected. Minimum-maximum length and weight of caught fishes were determined as 13.5-26.7cm and 19.12-214.04g for females and 13.8-26.8cm and 21.48-201.75g for males respectively. Total length-weight relationships of U. cirrosa were found as W=0.0028*TL3.42, R2=0.989, SEb=0.024 for combined sexes, W=0.0029*TL3.414, R2=0.988, SEb=0.037 for females and W=0.0028*TL3.423, R2=0.998, SEb=0.031 for males. 95% Confidence intervals for b value for combined sexes were 3.371-3.466. According to b values, combined sexes, females and males showed a positive allometric growth (t-test: p<0.05). Condition factors were 0.923±0.063 for all specimens, 0.930±0.009 for females and 0.917±0.008.

Anahtar Kelimeler:

Lenght-weight Relationship, Condition Factor, shi drum, Umbrina cirrosa, Mersin Bay

PDF

___

[1] Golani, D., Öztürk, B., and Başusta, N., (2006). Fishes of the Eastern Mediterranean. Turkish Marine Research Foundation. Publication number 24. 266 pp.
[2] Abdul Malak, D., Livingstone, S.R., Pollard, D., Polidoro, B.A., Cuttelod, A., Bariche, M., Bilecenoglu, M., Carpenter, K.E., Collette, B.B., Francour, P., Goren, M., Kara, M.H., Massutí, E., Papaconstantinou, C., and Tunesi, L., (2011). Overview of the Conservation Status of the Marine Fishes of the Mediterranean Sea. Gland. Switzerland and Malaga. Spain: IUCN. vii + 61pp.
[3] Ricker, W.E., (1975). Computation and Interpretation of Biological Statistics of Fish Populations. Bulletin of the Fisheries Researh Board of Canada. 191:1-382.
[4] Zar, J.H., (1999). Biostatistical Analysis 4th ed. Prentice Hall. New Jersey. pp:929.
[5] Işmen, A., Özen, Ö., Altınağaç, U., Özekinci, U., and Ayaz, A., (2007). Weight Length Relationships of 63 Fish Species in Saros Bay. Turkey. J Appl Ichthyol. 23:707-708.
[6] Dulcic, J. and Glamuzina, B., (2006). Length-weight Relationships for Selected Fish Species from Three Eastern Adriatic Estuarine Systems (Croatia). J. Appl. Ichthyol. 22:254-256.
[7] Borges, T.C., Olim, S., and Erzini, K., (2003). Weight–length Relationships for Fish Species Discarded in Commercial Fisheries of the Algarve (Southern Portugal). J. Appl. Ichthyol. 19:394-396.