DİCLE NEHRİ’NİN PLANKTONİK ALG FLORASI

Özet

Bu çalışma, Dicle Nehri'nin fitoplankton kompozisyonundaki değişimlerini ortaya koymak için Şubat 2008-Ocak 2009 tarihleri arasında 7 istasyonda aylık olarak yürütülmüştür. Bacillariophyta, Chlorophyta, Cyanophyta, Euglenophyta, Chrysophyta, Pyrrophyta, Cryptophyta, Xantophyta ve Rhodophyta divizyolarına mensup 390 takson teşhis edilmiştir. Tür çeşitliliği bakımından fitoplanktonun en zengin gruplarını, toplam takson sayısının %39.23'ünü kapsayan Bacillariophyta, %32.05'ini kapsayan Chlorophyta ve %18.46'sını kapsayan Cyanophyta divizyoları oluşturmuştur. Bacillariophyta divizyosundan Achnanthes minutissima var. minutissima, Amphora ovalis, Cocconeis pediculus, Cymbella affinis, Diatoma vulgaris, Encyonema silesiacum, Gomphonema angustatum, Gomphonema olivaceum, Gomphonema parvulum, Gomphonema vibrio var. intricatum, Navicula capitatoradiata, Navicula cryptonella, Navicula trivialis, Nitzschia fonticola, Nitzschia palea, Reimeria sinuata, Rhoicosphenia abbreviata ve Ulnaria ulna; Chlorophyta divizyosundan Cladophora glomerata, Eudorina elegans, Mougeotia sp., Oedogonium sp., Pediastrum boryanum, Spirogyra sp., Stigeoclonium lubricum, Ulothrix tenerrima ve Ulothrix tenuissima; Cyanophyta divizyosundan Oscillatoria subbrevis, Phormidium formosum, Phormidium limosum, Planktolyngbya limnetica, Planktothrix agardhii ve Pseudanabaena limnetica; Pyrrophyta divizyosundan Ceratium hirundinella ve Peridinium cinctum; Euglenophyta divizyosundan Euglena oxyuris ve Euglena sp.; Rhodophyta divizyosundan Audouinella hermannii Dicle Nehri'nde yaygın bulunan türler olarak teşhis edilmiştir

Abstract

Flora of the Planktonic Algae of the Tigris RiverThis study was performed monthly to reveal changes in phytoplankton composition of the Tigris River at seven sampling stations between February 2008 and January 2009. A total of 390 taxa were identified belonging to Bacillariophyta, Chlorophyta, Cyanophyta, Euglenophyta, Chrysophyta, Pyrrophyta, Cryptophyta, Xantophyta and Rhodophyta. Bacillariophyta comprised 39.23% of the total number of taxa, Chlorophyta comprised 32.05% of the total number of taxa and Cyanophyta comprised 18.46% total number of taxa were the richest groups of phytoplankton in terms of species diversity. Achnanthes minutissima var. minutissima, Amphora ovalis, Cocconeis pediculus, Cymbella affinis, Diatoma vulgaris, Encyonema silesiacum, Gomphonema angustatum, Gomphonema olivaceum, Gomphonema parvulum, Gomphonema vibrio var. intricatum, Navicula capitatoradiata, Navicula cryptonella, Navicula trivialis, Nitzschia fonticola, Nitzschia palea, Reimeria sinuata, Rhoicosphenia abbreviata and Ulnaria ulna from Bacillariophyta division; Cladophora glomerata, Eudorina elegans, Mougeotia sp., Oedogonium sp., Pediastrum boryanum, Spirogyra sp., Stigeoclonium lubricum, Ulothrix tenerrima and Ulothrix tenuissima from Chlorophyta division; Oscillatoria subbrevis, Phormidium formosum, Phormidium limosum, Planktolyngbya limnetica, Planktothrix agardhii and Pseudanabaena limnetica Cyanophyta division; Ceratium hirundinella and Peridinium cinctum from Pyrrophyta division; Euglena oxyuris and Euglena sp. from Euglenophyta division; Audouinella hermannii from Rhodophyta division were common species identified in the Tigris River