Yabancı Tür Trachemys scripta elegans (Wied-Neuwied, 1839)’ın Mersin-Anamur Tatlısu Sistemlerinde Dağılım Durumu ile Morfometrik Özelliklerinin Belirlenmesi

Yıl 2023, Cilt: 6 Sayı: 1, 10 - 25, 30.06.2023

Mehmet Ali Eldeleklioğlu Nuray Çiftçi Deniz Ayas

Öz

Araştırmada yabancı bir tür olan Trachemys scripta elegans (Wied-Neuwied, 1839)’ın Mersin-Anamur Tatlısu sistemlerinde dağılım durumu ile örneklenen bireylerin morfometrik ölçümlerin belirlenmesi amaçlanmıştır. Türün Mamure Kalesi ve Alyanak Sulak alanında dağılımı yumurtlama öncesi ve yumurtlama sonrası dönemde izlenmiştir. Her iki örnekleme döneminde toplam 40 adet birey sadece Mamure Kalesi’nden örneklenebilmiştir. Alyanak sulak alanında ise sadece yumurtlama öncesi dönemde 6 adet birey gözlenmiş, sulak alanın büyüklüğü, suyun derinliği ve bulanıklık durumu, bireylerin saklanmasına olanak veren vejetasyonun yoğunluğu, bireylerin hızı, ekibin su kaplumbağası yakalama deneyimi gibi sebeplerle ile herhangi bir birey alandan örneklenememiştir. Çalışmada T. scripta elegans bireylerinin ilk kez Mamure Kalesi hendek alanı dışında ve hendek alanı ile direk bağlantısı bulunmayan bir alan olan Alyanak Sulak alanında varlığı tespit edilmiştir. Ayrıca çalışmada Mamure Kalesi hendek alanında yumurtlama öncesi ve sonrasında örneklenen birey sayısı, dişi erkek oranı, olgunlaşma durumu tespit edilmiştir. Mamure Kalesi hendek alanından yumurtlama öncesi ve yumurtlama sonrası dönemde örneklenen bireylerin morfometrik özellikleri ölçülerek, olgunlaşma ve eşeye bağlı oluşan farklılıklar tespit edilmiştir.

Anahtar Kelimeler

Yabancı tür, Trachemys scripta elegans, Morfometri, Mersin-Anamur, Tatlısu rezervleri

Destekleyen Kurum

Mersin Üniversitesi

Proje Numarası

2021-2-TP2-4525

Teşekkür

Bu çalışma Mersin Üniversitesi Araştırma Fonu tarafından BAP-2021-2-TP2-4525 Proje numarası ile desteklenmiştir.

Determination of Distribution Status of Non-native Species Trachemys scripta elegans (Wied-Neuwied, 1839) in Mersin-Anamur Freshwater Systems

Öz

This study aimed to determine the distribution status of Trachemys scripta elegans (Wied-Neuwied, 1839), a non-native species, in the Mersin-Anamur Freshwater systems. The distribution of the species in Mamure Castle and Alyanak Wetland was observed in the pre-spawning and post-spawning periods. In both sampling periods, 40 individuals could be sampled from Mamure Castle. In the Alyanak wetland, only six individuals were observed in the pre-spawning period. No individuals could be sampled due to the wetland's size, the water's depth and turbidity, the density of the vegetation that allows the individuals to hide, the speed of the individuals, and the team's experience of catching freshwater turtles. In the study, the individuals of T. scripta elegans were detected for the first time outside the moat area of Mamure Castle and in Alyanak Wetland, a place without connection with the moat area. In addition, the number of individuals sampled from the moat of Mamure Castle before and after the spawning period, female-male ratio, and maturation status was determined. The morphometric characteristics of the sampled individuals were measured, and differences depending on maturation and sex were determined.

Anahtar Kelimeler

Non-native species, Trachemys scripta elegans, Distribution, Mersin-Anamur, Freshwater Reservoirs

Proje Numarası

2021-2-TP2-4525

Kaynakça

• Aca Townsend, C.R. (2003) Individual, population, community, and ecosystem consequences of a fish invader in New Zealand streams. Conservation Biology 17: 38-47.
• Balzani, P., Vizzini, S., Santini, G., Masoni, A., Ciofi, C., Ricevuto, E., Chelazzi, G. (2016) Stable isotope analysis of trophic niche in two co-occurring native and invasive terrapins, Emys orbicularis and Trachemys scripta elegans. Biological Invasions18: 3611-3621.
• Bringsøe, H. (2006) NOBANIS. Invasive Alien Species Fact Sheet Trachemys scripta, <http://www.nobanis.org/files/factsheets/Trachemys_scripta.pdf>. Accessed: 27 February 2015.
• Cadi, A., Joly, P. (2004) Impact of the introduction of the red-eared slider (Trachemys scripta elegans) on survival rates of the European pond turtle (Emys orbicularis). Biodiversity and Conservation 13: 2511-2518.
• Chen, T-H. (2006) Distribution and status of the introduced red-eared slider (Trachemys scripta elegans) in Taiwan, in: Koike, F., Clout, M.N., Kawamichi, M., De Poorter, M., Iwatsuki, K. (Eds.), Assessment and Control of Biological Invasion Risks, Shoukadoh Book Sellers, Kyoto, Japan and IUCN, Gland, Switzerland, pp. 187-195.
• Coblentz, B.E. (1990) Exotic organisms: a dilemma for conservation biology. Conservation Biology 4: 261-265.
• Çiçek, K., Ayaz, D. (2015) Does the red-eared slider (Trachemys scripta elegans) breed in Turkey? Hyla 1: 4-10.
• Echelle, A.A., Echelle, A.F. (1997) Genetic introgression of endemic taxa by non-natives: a case study with leon springs pupfish and sheepshead minnow. Conservation Biology 11: 153-161.
• Ernst, C.H., Lovich, J.E. (2009) Turtles of the United States and Canada. Maryland, USA: Johns Hopkins University Press, 840 pp.
• Ficetola, G.F., Rödder D., Padoa-Schioppa, E. (2012) Trachemys scripta (Slider terrapin), in: Francis, R. (Eds.), Handbook of global freshwater invasive species, Earthscan, Taylor & Francis Group Abingdon, UK., pp. 331-339.
• Global Invasive Species Database, (2020) www. Document available at <http://www.issg.org/database/
• Gradela, A., Santiago, T. O. C., Pires, I. C., Silva, A. de C. S., Souza, L. C. de, Faria, M. D. de, Neto, J. P., Milanelo, L. (2017) Sexual Dimorphism in Red-Eared Sliders (Trachemys scripta elegans) from the Wild Animal Triage Center of the Tiete Ecological Park, São Paulo, Brazil. Acta Scientiae Veterinariae, 45(1): 10.
• Gurevitch, J., Padilla, K.D. (2004) Are invasive species a major cause of extinctions? Trends in Ecology and Evolution 19(9): 470-474.
• Jadhav, T., Sawan, N., Shyama, S.K. (2018) First report on presence and status of introduced invasive species Red-eared Slider, Trachemys scripta elegans in Goa, India. An International Journal of Environment and Biodiversity 9(2): 177-179.
• Kraus, F. (2009) Alien Reptiles and Amphibians: a Scientific Compendium and Analysis (Invading Nature - Springer Series in Invasion Ecology), Springer-Verlag.
• Lindsay, M.K., Zhang, Y., Forstner, M.R.J., Hahn, D. (2013) Effects of the freshwater turtle Trachemys scripta elegans on ecosystem functioning: an approach in experimental ponds. Amphibia-Reptilia 34: 75-84.
• Lodge, D.M. (1993) Biological Invasions: Lessons for Ecology. Tree, 8(4): 133-136.
• Özdemir, G., Ceylan, B. (2007) Biyolojik istila ve Karadeniz’deki istilacı türler. SÜMAE Yunus Araştırma Bulteni 3: 1-5.
• Ramsay, N.F., Ng, P.K.A., O’Riordan, R.M., Chou, L.M. (2007) The red-eared slider (Trachemys scripta elegans) in Asia: a review, in: Francesca Gherardi (Eds.), Biological invaders in inland waters: Profiles, distribution, and threats, Springer, pp. 161-174.
• Rhodin, A., Iverson, J., Bour, R., Fritz, U., Georges, A., Shaffer, H.B., Dijk, P.P.V. (2017) Turtles of the World: Annotated Checklist and Atlas of Taxonomy, Synonymy, Distribution, and Conservation Status (8th Ed.), in: Rhodin, A.G.J., Iverson, J.B., van Dijk, P.P., Saumure, R.A., Buhlmann, K.A., Pritchard, P.C.H., Mittermeier, R.A. (Eds.). Conservation Biology of Freshwater Turtles and Tortoises: A Compilation Project of the IUCN/SSC Tortoise and Freshwater Turtle Specialist Group. Chelonian Research Monographs 7, pp. 1-292. doi: 10.3854/crm.7.checklist.atlas.v8.2017.
• Perez-Santigosa, N., Díaz-Paniagua, C., Hidalgo-Vila, J. (2008) The reproductive ecology of exotic Trachemys scripta elegans in an invaded area of southern Europe. Aquatic Conservation: Marine and Freshwater Ecosystems 18: 1302–1310.
• Spear, M.J., Elgin, A.K., Grey, E.K. (2018) Current and Projected Distribution of the Red-Eared Slider Turtle, Trachemys scripta elegans, in the Great Lakes Basin. The American Midland Naturalist 179: 191-221.
• Taylor, J.N.W.R., Courtenay, Jr., McCann, J.A. (1984) Known impacts of exotic fishes in the continental United States, in: Courtenay Jr.W.R, Stauffer, J.R. (Eds.) Distribution, biology and management of exotic fishes. Johns Hopkins Univ. Press., Baltimore. MD. pp. 322-373.
• Teillac-Deschamps, P., Prevot-Julliard, A.C. (2006) Impact of exotic slider turtles on freshwater communities: an experimental approach. In: First European congress of conservation biology, book of abstracts. Society for Conservation Biology, pp. 162-163.