Journals / Aquatic Research / 2020 / Cilt: 3 - Sayı: 4

The distribution of indopasific Dioithona oculata in souhthern coastal waters of Turkey

İndopasifik Dioithona oculata’nın Türkiye’nin güney kıyısal sularındaki dağılımı

Pages
197–207
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

According to the results of this study, D. oculata, which was found only in the autumn in Iskenderun Bay, started to be observed in summer by 2018 and in spring and winter by 2019.

📌 3 Key Takeaways

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Objective & Hypothesis:The southern coast of Turkey (Levantine Sea) is one of the most affected areas from alien species.
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Key Findings & Data:In addition, samplings were done in the late summer-early autumn of each year from 2017 to 2019 along the southern coastal water of Turkey in the framework of “Integrated Marine Pollution Monitoring 2017- 2019 Programme” which was carried out by Ministry of Environment and Urbanization and coordinated by TUBITAK-MAM.
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Conclusion & Impact:According to the results of this study, D. oculata, which was found only in the autumn in Iskenderun Bay, started to be observed in summer by 2018 and in spring and winter by 2019.
🔬Design:Research Article
📍Scope:2017 Verileri
⚙️Variables:Domain Parameters

Abstract

The southern coast of Turkey (Levantine Sea) is one of the most affected areas from alien species. Dioithona oculata is an Indo-Pacific species that has passed to the coastal waters of Iskenderun Bay in recent years. In this study, the current status of the seasonal and spatial distribution of this species, having dense swarm in tropical waters, was investigated in the north of Levant Sea. In this context, seasonal samplings were carried out in the coastal waters of Iskenderun Bay, which is previously reported, to examine the temporal distribution. In addition, samplings were done in the late summer-early autumn of each year from 2017 to 2019 along the southern coastal water of Turkey in the framework of “Integrated Marine Pollution Monitoring 2017- 2019 Programme” which was carried out by Ministry of Environment and Urbanization and coordinated by TUBITAK-MAM. According to the results of this study, D. oculata, which was found only in the autumn in Iskenderun Bay, started to be observed in summer by 2018 and in spring and winter by 2019. On the other hand, it was found that this species, which is known only in İskenderun Bay, extended spatially westward to the Mersin Taşucu coasts. The abundance of D. oculata in the study area is lower than previously reported values (max 110 individuals/m3). However, it is observed that its distribution was expanded both spatially and seasonally. Asia minor current, which is effective in the southern coast of Turkey, was thought to instigate for the transportation of this species.

Özet

Türkiye’nin güney kıyıları (Levant Denizi) yabancı türlerden en fazla etkilenen alanlardan biridir. Dioithona oculata ise son yıllarda İskenderun Körfezi kıyısal sularına geçiş yapmış indopasifik bir türdür. Bu çalışmada, tropikal sularda yoğun kümelerine rastlanan bu türün Levant Denizi’nin kuzeyinde mevsimsel ve alansal dağılımındaki mevcut durum araştırılmıştır. Bu bağlamda, zamansal dağılımını incelemek için daha önce rapor edildiği İskenderun Körfezi kıyısal sularında mevsimsel örneklemeler gerçekleştirilmiştir. Buna ek olarak, Çevre ve Şehircilik Bakanlığınca yürütülen ve TÜBİTAK-MAM koordinasyonluğunda gerçekleştirilen “Denizlerde Bütünleşik Kirlilik İzleme 2017-2019 programı” kapsamında 2017- 2019 yılları arasında geç yaz erken sonbahar periyodunda Türkiye’nin güney kıyısal suları boyunca örneklemeler yapılmıştır. Bu çalışmalar sonucunda İskenderun Körfezi’nde sadece sonbaharda bulunan D. oculata türüne 2018 yılı itibariyle yaz mevsiminde 2019 yılı itibariyle ise ilkbahar ve kış mevsimlerinde rastlanmıştır. Aynı şekilde sadece İskenderun Körfezi’nde varlığı bilinen bu türün alansal olarak batıya doğru Mersin Taşucu kıyısına kadar dağılım gösterdiği bulunmuştur. D. oculata bolluğu bölgede daha önce rapor edilen değerlerden düşüktür (en yüksek 110 birey/m3). Buna karşın bu türün alansal ve zamansal olarak dağılımını genişlettiği görülmekle birlikte, Türkiye güney kıyıları boyunca etkin olan önasya akıntısının bu türün taşınmasına ön ayak olduğu düşünülmektedir.

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Cite This Article

KURT, T. T. (2020). The distribution of indopasific Dioithona oculata in souhthern coastal waters of Turkey. Aquatic Research, Cilt: 3 - Sayı: 4, 197–207. https://ajindex.com/articles/141946

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