Gökçeada Sığ Sularında Bulunan İsparoz, Diplodus annularis Larva ve Juvenillerinin Günlük Yaş ve Büyüme Özellikleri

Year 2020, , 57 - 67, 31.03.2020

Hakan Ayyıldız , Aytaç Altın

https://doi.org/10.29133/yyutbd.652859

Cited By: 1

Abstract

Bu çalışma Haziran 2013 – Haziran 2014 tarihleri arasında Gökçeada sığ sularında (0 - 20 m) gerçekleştirilmiştir. Gökçeada çevresinde plankton kepçesi ve ığrıp ile yapılan avcılık operasyonları sonucunda toplam boyları 2.01 mm ile 10 mm TL arasında olan toplam 190 adet larva ile toplam boyları 11 – 140 mm TL arasında olan 923 adet juvenil isparoz yakalanmıştır. Elde edilen bireylerin boy-ağırlık ilişkileri W = 8E-06TL3.1029 (R2 = 0.975) olarak hesaplanmıştır. Yapılan yaş tayinleri sonucunda larvaların 2 ile 19 gün, juvenillerin ise 18 ile 296 gün arasında oldukları tespit edilmiştir. Larvaların ortalama günlük büyüme oranlarının tespit edilmesi için yapılan boy-yaş regresyon analizi sonucunda günlük büyüme oranları 0.398 mm gün, juvenillerin ise 0.371 mm gün olarak hesaplanmıştır. Gökçeada çevresinde yakalanan isparoz larvalarının otolitlerinden yapılan günlük yaş tayinleri sonucunda yumurtadan çıkma zamanları Nisan-Eylül dönemi boyunca devam ettiği ve Haziran ayında maksimum seviyeye ulaştığı, juvenillerin ise Şubat-Eylül dönemi boyunca devam ettiği ve Mayıs ayında maksimum seviyeye ulaştığı tespit edilmiştir. İsparoz larvalarının günlük ölüm oranları (DM) 0.231027 ve günlük ölüm oranı yüzdeleri (%DM) %23.1 olarak, juvenillerin ise DM 0.02984 ve %DM ise %2.98 olarak hesaplanmıştır. Günlük yaşama oranları ise larvalarda 0.769 ve juvenillerde 0.9701 olarak bulunmuştur.

Keywords

Otolit, Günlük yaş tayini, Gökçeada, İsparoz, Diplodus annularis

Supporting Institution

TÜBİTAK

Project Number

112Y062

Daily Age and Growth Rates of Larval and Juvenile Annular Seabream, Diplodus annularis Inhabiting the Gökçeada Shallow Waters

Abstract

This study was carried out between June 2013 - June 2014 from Gökçeada shallow waters (0 - 20 m). A total of 190 larvae with a total length of 2.01 mm to 10 mm and 923 juvenile annular seabream with a total length of 11-140 mm were caught by using a plankton net and beach seine. The length-weight relationships of the obtained individuals were calculated as W = 8E-06TL3.1029 (R2 = 0.975). Estimated daily ages ranged from 2 and 19 days for larvae and 18 and 296 days for juveniles. The daily growth rates of larval and juvenile annular seabreams were estimated as 0.398 mm/day and 0.371 mm/day, respectively. Hatching time of the larval annular seabream was estimated to occur during April - September period and reached maximum level in June while the juveniles continued during February - September period and reached maximum level in May. The larval and juvenile annular seabream instantaneous mortality coefficient was calculated as 0.231027 and 0.02984, which represented around 23.1% and 2.98% of daily mortality. Daily survival rates were found as 0.769 for larvae and 0.9701 for juveniles.

Keywords

Diplodus annularis, Daily growth increments, Gökçeada, Annular seabream, Otolith

Project Number

112Y062

References

• Ayyildiz, H., Ozen, O. & Altin, A. (2014). Growth and hatching of annular seabream, Diplodus annularis, from Turkey determined from otolith microstructure. Journal of the Marine Biological Association of the United Kingdom, 94(05), 1047-1051. doi:10.1017/S002531541400040X
• Bauchot, M. L. & Hureau, J. C. (1986). Sparidae. In P. J. P. Whitehead, M. L. Bauchot, J. C. Hureau, J. Nielsen & E. Tortonese (Eds.), Fishes of the north-eastern atlantic and the mediterranean (883–907). Paris: UNESCO.
• Bauchot, M. L. & Hureau, J. C. (1990). Sparidae. In J. C. Hureau, C. Karrer, A. Post & L. Saldanha (Eds.), Check list of the fishes of the eastern tropical atlantic (790-812). Clofeta II, UNESCO, Paris.
• Beamish, R. J. & Mcfarlane, G. A. (1983). The forgotten requirement for age validation in fisheries biology. Transactions of the American Fisheries Society, 112(6), 735-743. doi:10.1577/1548-8659(1983)112<735:tfrfav>2.0.co;2
• Garciarubies, A. & Macpherson, E. (1995). Substrate use and temporal pattern of recruitment in juvenile fishes of the Mediterranean littoral. Marine Biology, 124(1), 35-42. doi:10.1007/bf00349144
• Gordoa, A. & Moli, B. (1997). Age and growth of the sparids Diplodus vulgaris, D. sargus and D. annularis in adult populations and the differences in their juvenile growth patterns in the north-western Mediterranean Sea. Fisheries Research, 33(1–3), 123-129. doi:http://dx.doi.org/10.1016/S0165-7836(97)00074-X
• Harmelin-Vivien, M. L., Harmelin, J. G. & Leboulleux, V. (1995). Microhabitat requirements for settlement of juvenile sparid fishes on mediterranean rocky shores. Hydrobiologia, 300, 309-320.
• Houde, E. D. (2008). Emerging from hjort’s shadow. Journal of Northwest Atlantic Fishery Science, 41, 53-70.
• Kinacigil, H. T. & Akyol, O. (2001). Effects on trawl selectivity of growth and reproduction in Diplodus annularis L. of İzmir Bay (Aegean Sea). Archive of Fishery and Marine Research, 49(1), 19-26.
• Kingsford, M. & Atkinson, M. (1994). Increments in otoliths and scales: How they relate to the age and early development of reared and wild larval and juvenile Pagrus auratus (Sparidae). Marine and Freshwater Research, 45(6), 1007-1021. doi:http://dx.doi.org/10.1071/MF9941007
• Kraljevic, M. & Jug-Dujakovic, J. (1988). Preliminary ecological and biological studies of juvenile fish species of commercial interest in the national park "kornati". FAO, General Fish Council Mediterranean, 394, 291-299.
• Labropoulou, M., Damalas, D. & Papaconstantinou, C. (2008). Bathymetric trends in distribution and size of demersal fish species in the north Aegean Sea. Journal of Natural History, 42(5-8), 673-686. doi:10.1080/00222930701835621
• Matić-Skoko, S., Kraljević, M., Dulčić, J. & Jardas, I. (2007). Age, growth, maturity, mortality, and yield-per-recruit for annular sea bream (Diplodus annularis L.) from the eastern middle Adriatic Sea. Journal of Applied Ichthyology, 23(2), 152-157.
• Metin, G. & Akyol, O. (2003). Izmir körfezi’nde (Ege Denizi) isparoz (Diplodus annularis L., 1758)’un bir defada biraktigi yumurta miktarinin belirlenmesi üzerine bir ön çalişma. Ege Üniversitesi Su Ürünleri Dergisi, 20(1-2), 205-209.
• Mouine, N., Francour, P., Ktari, M. H. & Chakroun-Marzouk, N. (2012). Reproductive biology of four Diplodus species Diplodus vulgaris, D. annularis, D. sargus sargus and D. puntazzo (Sparidae) in the Gulf of Tunis (Central Mediterranean). Journal of the Marine Biological Association of the United Kingdom, 92(03), 623-631. doi:10.1017/S0025315411000798
• Pajuelo, J. G. & Lorenzo, J. M. (2002). Age and growth of the annular seabream, Diplodus annularis (Pisces : Sparidae), from the canarian archipelago (central-east atlantic). Ciencias Marinas, 28(1), 1-11.
• Ricker, W. E. (1975). Computation and interpretation of biological statistics of fish populations. Bulletin of the fisheries research board of Canada, 191, 382.
• Torcu Koc, H., Cakir, D. & Aka, Z. (2002). Age, growth, sex-ratio, spawning season and mortality of annular bream, Diplodus annularis Linnaeus (1758) (Pisces:Sparidae) in edremit gulf. Pakistan Journal of Biological Sciences, 5(10), 1126-1130.
• Vigliola, L. (1997). Validation of daily increment formation in otoliths for three Diplodus species in the Mediterranean Sea. Journal of Fish Biology, 51(2), 349-360. doi:10.1111/j.1095-8649.1997.tb01671.x
• Villanueva, R. & Molí, B. (1997). Validation of the otolith increment deposition ratio using alizarin marks in juveniles of the sparid fishes, Diplodus vulgaris and D. puntazzo. Fisheries Research, 30(3), 257-260. doi:http://dx.doi.org/10.1016/S0165-7836(97)00008-8
• Wassef, E. A. (1985). Comparative biological studies of four Diplodus species (Pisces, Sparidae). Cybium, 9(2), 203-215.
• Zar, J. H. (1984). Biostatistical analysis. Englewood Cliffs, NJ, USA: Prentice-Hall,