First Report of a New Invasive Species Oithona davisae Ferrari and Orsi, 1984 (Copepoda: Cyclopoida) in the Sea of Marmara

Bu çalışma ile Oithona davisae (Copepoda: Cyclopoida) ilk kez Marmara denizinden kayıt edilmiş ve Türkiye Denizlerinin plankton türlerinin bölgesel kontrol listesine eklenmiştir. İstilacı tür O. davisae'nin mevsimsel bolluğu Büyükçekmece Körfezinde Mart 2014 - Şubat 2015 tarihleri arasında araştırılmıştır. O. davisae körfezin kıyısal bölgelerinde daha bol miktarlarda gözlenmiş ve maksimum bolluğu (3740 ind.m-3) Eylül 2014 tarihinde tespit edilmiştir. O. nana'nın ortalama bolluğu Eylül 2014 tarihinde maksimum değerdeyken, O. similis'in en yüksek ortalama bolluğu Haziran 2014'tür.

Yeni Bir İstilaci Tür Olan Oithona Davisae Ferrari and Orsi, 1984 (Copepoda: Cyclopoida)'nin Marmara Denizi'nde İlk Kaydı

Oithona davisae (Copepoda: Cyclopoida) is reported for the first time from the Marmara Sea and added to the regional check-list of plankton species of Turkish seas. Seasonal abundances of the recent invasive O. davisae were investigated in Büyükçekmece Bay from March 2014 to February 2015. O. davisae was more abundant at the coastal area of the bay with a peak abundance reached in September 2014. While the average abundance of O. nana was maximum in September 2014, the highest average abundance of O. similis was in June 2014.

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