Ali Kara, Burcu Taylan, Bahar Bayhan, Cemil Sağlam, Ali Özcan Babaoğlu

The Length-Weight Characteristics of Five Elasmobranch Species (Pisces: Chondrichthyes) from Izmir Bay (Aegean Sea Coast of Turkey): Spring 2018

In this study, a total of 364 samples were collected and 349 of them belonged to, 349 specimens of Dasyatis pastinaca, 6 of Gymnura altavela, 5 of Torpedo marmorato, 2 of Aetomylaeus bovinus and Mustelus mustelus, were obtained by-catch in trammel nets off the Izmir Bay (Aegean sea coast of Turkey) during period of spring in 2018. Males of D. pastinaca ranged from 28–62 cm and females from 31.5-94 cm total length. The analysis of the angular coefficient (b) demonstrated that growth (in weight) in relation to length was isometric in males and females of D. pastinaca. Morphologic measurements of a total of 60 individuals to represent all individuals of the population, t test in independent groups to determine differences in males and females and all other morphometric measurements were statistically tested by multiple regression analysis (stepwise method). Therefore, difference between mean values obtained according to sexes was not found different. However, A linear correlation between weight- pelvic length for females and weight- preanal length for males according to multiple regression analysis in male and female individuals. Isometric and positive allometric growths were calculated for species of Torpedo marmorata and Gymnura altavela, respectively

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Bagenal TB, Tesch FW. 1978. Age and Growth. In: Bagenal, T., Ed., Methods for Assessment of Fish Production in Fresh Waters, 3rd Edition, IBP Handbook No. 3, Blackwell Science Publications, Oxford.
Başusta N, Aslan E. 2018. Age and growth of bull ray Aetomylaeus bovinus (Chondrichthyes: Myliobatidae) from the northeastern Mediterranean coast of Turkey. Cahiers deBiologie Marine, 59: 107-114.
Bayhan B, Sever TM, Taşkavak E. 2008. Length-weight Relationships of Seven Flatfishes (Pisces: Pleuronectiformes) from Aegean Sea. Turkish Journal of Fisheries and Aquatic Sciences, 8: 377-379.
Bilecenoglu M, Kaya M, Cihangir B, Cicek, E. 2014. An Updated Checklist of The Marine Fishes of Turkey. Turkish Journal of Zoology, 38. doi:10.3906/zoo-1405-60.
Bök TD, Gokturk D, Kahraman AE, Alicli TZ. 2011. Length- Weight Relationships of 34 Fish Species From The Sea of Marmara, Turkey. Journal of Animal and Veterinary Advances, 10(23): 3037-3042.
Bradaun MN, Saidi B, Enajjar S. 2012. Elasmobranchs of the Mediterranean and Black sea: status, ecology and biology. Bibliographic analysis. Studies and Reviews. General Fisheries Commission for the Mediterranean, No. 91. Rome, FAO. 103 pp.
Demirhan SA, Engin S, Seyhan K, Akamca E. 2005. Some Biological Aspects of Thornback Ray (Raja clavata L., 1758) in the Southeastern Black Sea. Turkish Journal of Fisheries and Aquatic Sciences, , 5: 75-83.
Demirhan SA, Seyhan K. 2007. Life history of spiny dogfish, Squalus acanthias (L. 1758), in the southern Black Sea. Fisheries Research, 85(1-2), 210–216. https://dx.doi.org/10.1016/j.fishres.2007.02.009
Dulvy N, Allen D, Ralph G, Walls R. 2016. The conversation status of Sharks, Rays and Chimaeras in the Mediterranean Sea. Internatıonal Unıon for Conservatıon of Nature, IUCN Centre for Mediterranean Cooperation, DOI: 10.13140/RG.2.2.22020.53129.
Duman ÖV, Başusta N. 2013. Age and Growth Characteristics of Marbled Electric Ray Torpedo marmorata (Risso, 1810) Inhabiting Iskenderun Bay, North-eastern Mediterranean Sea. Turkish Journal of Fisheries and Aquatic Sciences, 13(3): 541-549.
Eronat, E. G. T., & Özaydın, O. (2014). Length-weight relationship of cartilaginous fish species from Central Aegean Sea (Izmir Bay and Sığacık Bay). Ege Journal of Fisheries and Aquatic Sciences, 31(3): 119-125.
Eronat EGT, Bizsel KC. 2015. Diversity in Fish Fauna of Turkish Seas. DEVOTES-EUROMARINE Summer School “Marine ecosystem services, management and governance: linking social and ecological research” 9-11 June 2015- Aquarium of Donostia- San Sebastián, Spain.
Eronat EGT, Başusta N. 2018. Chondrichthyan species as by- catch: A review on species inhabiting Turkish waters. Journal of Black Sea/Mediterranean Environment, 24, (3): 288-305.
Filiz H, Mater S. 2002. A Preliminary Study on Length-Weight Relationships for Seven Elasmobranch Species from North Aegean Sea, Turkey. Ege Journal of Fisheries and Aquatic Sciences, 19(3-4), 401–409.
Filiz H, Bilge G. 2004. Length–weight relationships of 24 fish species from the North Aegean Sea, Turkey. J Appl Ichthyol, 20(3): 431–432. https://dx.doi.org/10.1111/j.1439- 0426.2004.00582.x
Frisk MG, Miller TJ, Fogarty MJ. 2001. Estimation and analysis of biological parameters in elasmobranch fishes: a comparative life history study. Canadian Journal of Fisheries and Aquatic Sciences, 58: 969−981.
Froese R, Pauly D. 2020. Fish Base. http://www.fishbase.org (Accessed 05 January 2020).
Girgin H, Başusta N. 2016. Testing staining techniques to determine age and growth of Dasyatis pastinaca (Linnaeus, 1758) captured in Iskenderun Bay, northeastern Mediterranean. Journal of Applied Ichthyology, 32: 595-601.
Gurkan, S., Bayhan, B., Akcinar,SC. Taskavak, E. 2010. Length- Weight Relationship of Fish from Shallow Waters of Candarli Bay (North Aegean Sea, Turkey). Pakistan Journal of Zoology, 42(4): 495-498
Guven O, Kebapcıoglu T, Deval MC. 2011. Length–weight relationships of sharks in Antalya Bay. Eastern Mediterranean. Journal of Zoology, 28, 278–279. https://dx.doi.org/10.1111/j.1439-0426.2011.01823.x
Hepkafadar O. 2008. İzmir Körfezi’nde Adi Köpekbalığı (Mustelus mustelus Linnaeus, 1758) Avcılığı ve Bazı Biyolojik Özellikleri Üzerine Araştırmalar (Master Thesis). Ege University, Izmir, Turkey
Hoenig JM, Gruber SH. 1990. Life-history patterns in the elasmobranchs: implications or fisheries management. In: Pratt HL Jr, Gruber SH, Taniuchi T (eds) Elasmobranchs as living resources: advances in the biology, ecology, systematics, and the status of fisheries. US Department of Commerce, NOAA Technical Report NMFS (National Marine Fisheries Service) 90, Washington, DC, p 1−16.
Ilkyaz AT, Metin G, Soykan O, Kinacigil HT. 2008. Length– weight relationship of 62 fish species from the Central Aegean Sea, Turkey. Journal of Applied Ichthyology, 24, 699-702. https://dx.doi.org/10.1111/j.1439-0426.2008.01167.x
Ismen A. 2003. Age, growth, reproduction, and food of common stingray (Dasyatis pastinaca L., 1758) in İskenderun Bay, the eastern Mediterranean. Fisheries Research, 60: 169–176.
Ismen A, Ozen O, Altinagac U, Ozekinci U, Ayaz A. 2007. Weight–length relationships of 63 fish species in Saros Bay, Turkey. Journal of Applied Ichthyology, 23: 707–708. https://dx.doi.org/10.1111/j.1439-0426.2007.00872.x
Ismen A, Yigin CC, Altinagac U, Ayaz A. 2009. Length–weight relationships for ten shark species from Saros Bay (North Aegean Sea). Journal of Applied Ichthyology, 25, 109–112.
IUCN, 2021.The IUCN Red List of Threatened Species. Karachle PK, Stergiou KI. 2012. Morphometrics and allometry in fishes. p. 65-86. In: Morphometrics. Wahl, C (Ed.). In Tech. Available from: http://www.intechopen.com/articles/ show/title/morphometrics-andallometry-in-fishes. ISBN: 978-953-51-0172-7
Karakulak FS, Erk H, Bilgin B. 2006. Length–weight relationships for 47 coastal fish species from the northern Aegean Sea, Turkey. Journal of Applied Ichthyology, 22(4), 274–278. https://dx.doi.org/10.1111/j.1439-0426.2006.00736.x
Kolher N, Casey J, Turner P. 1995. Length-weight relationships for 13 species of sharks from the western North Atlantic. Fish Bulletin, 93: 412-418.
Moutopoulos DK., Stergiou KI. 2002. Length–weight and length–length relationships of fish species from the Aegean Sea (Greece). Journal of Applied Ichthyology, 18: 200–203
Ozaydın O, Uckun D, Akalın S, Leblebici S, Tosunoglu Z. 2007. Length–weight relationships of fishes captured from Izmir Bay, Central Aegean Sea. Journal of Applied Ichthyology, 23(6), 695–696. http://dx.doi.org/10.1111/j.1439-0426.2007. 00853.x
Ricker WE. 1975. Computations and interpretation of biological statistics of fish populations. Fish Research Bd Canada Bull, 191: 382 pp.
Sakalli A, Yucel N, Capapé C. 2016. Confirmed occurrence in the Mediterranean Sea of Mobular japanica (Müller and Henle, 1841) with a first record off the Turkish coasts. Journal of Applied Ichthyology, 32(6): 1232-1234.
Turker-Cakir D, Torcu-Koc H, Erdoğan Z. 2005. Some Biological Aspects of the Lesser Spotted Dog Fish Scyliorhinus canicula (Linnaeus, 1758) in Edremit Bay (The Northern Aegean Sea) Turkey. In N. Basusta, Ç. Keskin, F. Serena & B. Seret (Eds.), The Proceedings ofthe International Workshop on Mediterranean Cartilaginous Fish with Emphasis on Southern-Eastern Mediterranean, (pp. 17-27) Istanbul, Turkey.
Türker D, Zengin K, Tunay ÖK. 2019. Length-Weigth Relationships for Nine Chondrichthyes Fish Species from Edremit Bay (North Aegean Sea). Turkish Journal of Fisheries and Aquatic Sciences, 19(1): 71-79.
Yeldan H, Avsar D. 2007. Length–weight relationship for five elasmobranch species from the Cilician Basin shelf waters (Northeastern Mediterranean). Journal of Applied Ichthyology, 23(6): 713–714.
Yeldan H, Avsar D, Manasırlı M. 2008. Kuzeydoğu Akdeniz’deki Deniz Tilkisi Raja clavata (Linnaeus, 1758)’nın Bazı Biyolojik Özellikleri. Ege Journal of Fisheries and Aquatic Sciences, 25(3): 221-228
Yeldan H, Avsar D, Manasırlı M. 2009. Age, growth and feeding of the common stingray (Dasyatis pastinaca, L., 1758) in the Cilician coastal basin, northeastern Mediterranean Sea. Journal of Applied Ichthyology, 25(Suppl. 1) 98–102.
Yigin CC, Ismen A. 2009. Length–weight relationships for seven rays from Saros Bay (North Aegean Sea). Journal of Applied Ichthyology, 25 (Suppl. 1): 106–108. https://dx.doi.org/10.1111/j.1439-0426.2008.01161.x
Yücel N, Sakalli A, Karahan A. 2017. First record of the honeycomb stingray Himantura leoparda (Manjaji‐ Matsumoto and Last, 2008) (Myliobatoidei: Dasyatidae) in the Mediterranean Sea, confirmed by DNA barcoding. Journal of Applied Ichthyology, 33(3): 530-532. https://www.resmigazete.gov.tr/ (erişim tarihi 19 Mayıs 2020)