Sphaerospora elegans Thelohan, 1892 and Myxobilatus gasterostel Davis, 1944 (Phylum: Myxozoa) infections in the three-spined stickleback, Gasterosteus aculeatus L., 1758 in Turkey

Dikence balıklarında (Gasterosteus aculeatus L, 1758) bulunan Sphaerospora elegans Thelohan, 1892 ve Myxobilatus gasterostei Davis, 1944 enfeksiyonları, Ocak - Mayıs 2000 tarihleri arasında çalışıldı. Enfeksiyon yüzdesi ve intensitesi değerleri her iki parazit türü beraber ele alındığında, sırasıyla %26.5 ve enfekte balık başına 3+ (0-5) parazit olarak kaydedildi. Bu değerler, her iki parazit türü için ayrı ayrı olarakta belirlendi. Sphaerospora eleganam enfeksiyon yüzdesi ve ortalama parazit sayısı sırasıyla %11.9 ve 3+ (0-5) olarak tespit edilmişken, bu değerler M. gasterostei için sırasıyla %17.9 ve 3+ (0-5) olarak kaydedilmiştir. Her iki parazit türünün balıkların cinsiyetleri ve boylan ile ilişkileri belirlendi ve enfeksiyonların bu faktörler ile beraber bazı çevresel faktörlerle olan etkileşimleri tartışıldı. S.elegans ve M. gasterostei, Türkiye için iki yeni parazit türü olarak belirlendi. Bu çalışma, ayrıca mikzospor enfeksiyonları açısından acı su ve tatlı su karakterindeki bir ortamda yürütülen ilk araştırmadır.

Türkiye' deki dikence balığında (Gasterosteus aculeatus L., 1758) görülen Sphaerospora elegans Thelohan, 1892 ve Myxobilatus gasterostei Davis, 1944 (Phylum: Myxozoa) enfeksiyonları

Sphaerospora elegans Thelohan, 1892 and Myxobilatus gasterostei Davis, 1944 infections in the three-spined stickleback (Gasterosteus aculeatus L., 1758) were studied from January to May 2000. Infection prevalence and intensity values were determined for mixed infections to be 26.5% and 3+ (0-5) parasites per fish, respectively. These values for each species were also determined. While infection prevalence and mean intensity values for S.elegans were 11.9% and 3+ (0-5), they were 17.9% and 3+ (0-5), respectively, for M. gasterostei. The existence of both parasite species in relation to the sex and length classes of the fish were determined and the infection interactions with these factors as well as some environmental factors are discussed. S.elegans and M. gasterostei represent two new parasite records for Turkey. This is also the first study on myxosporeans performed in brackish and freshwater conditions in the same environment.

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