Fatih ŞAHIN, Levent BAT, Dilek EDIGER, Tarıq AL-NAJJAR

Akabe Körfezi (Kızıldeniz) Fitoplanktonunun Ekolojik ve Fitocoğrafik Durumu ve Tür Kompozisyonu

Aqaba Körfezi Ürdün kıyılarından 5 istasyondan deniz yüzey suyundan 107 örnek toplanmıştır. Genel olarak, 6 fitoplankton sınıfına ait 188 fitoplankton türü tespit edilmiştir. Toplam tür sayısının %60’ı dinoflagellatlar tarafından domine edilmiştir. Toplam tür sayısının %38’ini diatomlar ve %2’sini diğer gruplar oluşturmuştur. Tespit edilen türlerin coğrafi dağılımı; % 37 kozmopolit, % 28 boreal-tropikal, % 17 tropikal, % 11 tropikal subtropikal, % 4 boreal, % 2 arkto-boreal ve % 1 subtropikal olarak belirlenmiştir. Ekolojik dağılıma göre türlerin % 88'i deniz, % 12'si deniz-acı su kökenlidir. Ayrıca türlerin % 80'i pelajik kökenlidir ve % 20'si bentik kökenli türlerdir. 2007-2008 döneminde fitoplankton tür kompozisyonu, fitocoğrafik ve ekolojik dağılımı ve türlerin kökenleri sunulmuştur.

Ecological and Phytogeographical Status and Species Composition of the Phytoplankton in the Gulf of Aqaba (Red Sea)

One hundred and seven samples were collected from sea surface from 5 stations along the Jordanian coast of the Gulf of Aqaba. Overall,188 species were identified under six phytoplankton classes. Dinoflagellates dominate sixty percent of the total species. Diatoms constituted 38% and other groups represented by 2%. The geographical distribution of the identified species, 37% cosmopolitan, 28% boreal-tropical, 17% tropical, 11% tropical-subtropical, 4% boreal, 2% arcto-boreal and% 1 was determined as subtropical. According to ecological distribution, 88% of the species were marine and 12% marine-brackish origin. Also, 80% of the species were of pelagic origin, and 20% are benthic origin species. The phytoplankton species composition, phytogeographic and ecological distribution and species origins were presented from 2007 through 2008.

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