Güneydoğu Karadeniz’de Yaz Dönemi Mikrozooplankton Dinamiği

Year 2016, Volume: 16 Issue: 2, 151 - 162, 01.06.2016

Ülgen Aytan

https://doi.org/10.17693/yunusae.v16i21960.368763

Abstract

Güneydoğu Karadeniz’de Mikrozooplankton komunite komposzisyonu, bolluğu ve ilişkili olduğu düşünülen çevresel parametreler  nehir ağzı ve açık istasyonunda Haziran 2015-Ağustos 2015 tarihleri arasında araştırıldı. Mikrozooplankton komunitesi protozoa ve mikrometazoadan oluştu. Ancak protozoa mikrozooplanktonun baskın grubu oldu. Her iki örnekleme istasyonunda da protozoa komunitesi heterotrofik dinoflagellatlar ve siliyatlar tarafından temsil edildi. Bu çalışmada sarkodinlere rastlanmadı. Mikrozooplankton bolluğu nehir ağzında 332- 845 hücre/l ve açık istasyonunda 203- 604 hücre/l arasında değişti ve Haziran’dan Ağustos’a düşüş eğilimi sergiledi. İstasyonlar arasında toplam mikrozooplankton bolluğu bakımından istatistiki açıdan önemli bir farklılık bulunmamıştır (t-test, p< 0.05). Önceki yapılan çalışmalarla karşılaştırmalar, mikrozooplanktonun termal tabakalaşma döneminde üst besinsel seviyeler için önemli bir enerji kaynağı olabileceğini gösterdi.

Keywords

Heterotrofik dinoflagellat, siliyat, mikrometazoa, mikrozooplankton, Karadeniz

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