Elekçi Deresi (Türkiye)’nin Balık Faunası için Yeni Kayıt Doğal ve Doğal Olmayan Türler

Abstract

Amaç Bu çalışmada Ordu İli’nin Fatsa İlçesi’nin sınırlarından Karadeniz Dökülen Elekçi Deresi’nde yaşayan balık türlerini tespit etmekti. Materyal ve Yöntemler Çalışmada Elekçi Deresi’nden Ocak 2017-Ekim 2018 arasında önceden belirlenen altı istasyondan elektroşoker kullanılarak örneklemeler gerçekleştirilmiştir. Örnekler laboratuvara getirildi, daha sonra tekrar incelenmek üzere numuneler formol solüsyonunda (%4) muhafaza edilmiştir ve meristik ve metrik morfolojik karakterleri belirlenmiştir. Tür tayinleri referans kaynaklardan yararlanılarak yapılmıştır. Sonuçlar ve Tartışma Elde edilen sonuçlara göre, Elekçi Deresi’nde daha önceden yapılmış çalışmaya göre doğal iki tür ve doğal olmayan bir tür tespit edilmiştir. Bu türler sırasıyla, üç familyadan (Leuciscidae, Gobiidae, and Salmonidae) Alburnoides fasciatus, Ponticola turani, and Oncorhynchus mykiss’tir. Bununla birlikte diğer çalışmanın sonuçlarına benzer olarak Capoeta banarescui, Barbus tauricus, Rhodeus amarus (Cyprinidae), Alburnus derjugini, Squalius cephalus (Leuciscidae) türleri de tespit edilmiştir. Daha öncesinde Elekçi Deresi’nde Neogobius fluviatilis olarak tespit edilen tür bu dere için Ponticola turani’nin homeotipi olarak belirlenmiştir.

Keywords

• Tatlısu Balıkları
• balık faunası
• taksonomi
• çeşitlilik

The New Record Native and Non-Native Species for the Ichthyofauna of Elekçi Stream (Turkey)

Abstract

Aim In this study, fish species living in the Elekçi Stream, which poured from the borders of Fatsa District of Ordu Province to the Black Sea, were to determine as taxonomical. Material and Methods In the study, samples were taken from Bolaman and Elekçi Rivers using an electroshock device from six pre-determined stations between January 2017 and October 2018. Specimens were brought to the laboratory. The samples were then stored in formaldehyde solution (4%) for further examination and their metric and meristic characteristics were determined. Results and Discussion According to the results, two of the nine fish species were identified as native and one non-native new record species for Elekçi Stream for the first time as to the previous study performed in. These species are Alburnoides fasciatus, Ponticola turani, and Oncorhynchus mykiss belonged to three families (Leuciscidae, Gobiidae, and Salmonidae), respectively. However, other sampled species were found also to be Capoeta banarescui, Barbus tauricus, Rhodeus amarus (Cyprinidae), Alburnus derjugini, Squalius cephalus (Leuciscidae), similar to the results of the other study. The species previously identified as Neogobius fluviatilis in Elekçi Stream was designated as the homeotype of Ponticola turani for this stream.

Keywords

• Freshwater fishes
• fish fauna
• taxonomy
• diversity

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