On the algal ecology of the lowland Iraqi marshes

Maulood, Bahram K.; Hinton, G. C. F.; Whitton, Brian A.; Al‐Saadi, Hussain A.

doi:10.1007/bf00018367

Cited by 34 publications

(25 citation statements)

References 4 publications

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“…The southern Iraq is considered 8s the estuarine district and is greatly influenced hy the tidal currents up to a long distance upstrean), even beyond 140 kin inland through the river Shatt al-Arab. Froin the present study and that of earlier studies (ISLAM 1982, MAULOOD et al 1981 it has been revealed that the desinids species xere rarely or occasionally encountered with in the planlitcn samples 2nd the population of any species was extremely sparse, sometimes only one or two individuals of a species could be seen in a sample, a n d if lost, very difficult to trace it hack again.…”

Section: Introductionsupporting

confidence: 62%

Desmids of Iraq

Islam

Haroon

1985

Intl Review of Hydrobiology

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Desmids of Iraq key words: desmids, phyt,oplankton, lraq Abstract Forty species and varieties of desmids belonging to the genera Closterium (7), Pleurotaeniurn (l), Euastrum (3), Cosmarium (28) and Staurastrum (1) have been described from southern Iraq including two new varieties under Cosmarium (i.e. C. cyc2icum LUXD. var. mesopotamianum var. nov., and C. tyrolicum (NORDST.) KRIEGER C GERLOFF var. minor var. nov.). Nost of the taxa are new records for Iraq.

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Section: Introductionsupporting

confidence: 62%

Desmids of Iraq

Islam

Haroon

1985

Intl Review of Hydrobiology

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“…The Bacillariophyta (59 taxa) was dominated both rivers (47.9% of the total number). Such dominancy was also reported from a variety of aquatic habitats in Iraq and other parts of the world ( 4,8,9,10 ). The second dominated group was Chlorophyta represented by 36 taxa ( 29.3%) , followed by Cyanophyta 19 taxa (15.4%), Euglenophyta and Pyrrophyta 3 taxa each (2.4%) , Crysophyta 2 taxa (1.6%) and Rhodophyta 1 taxa (0.8%) .…”

Section: Resultsmentioning

confidence: 76%

The impacts of sewage treatment plant on phytoplankton of Diyala and Tigris rivers

Kassim

Sabri

Al‐Lami

et al. 1996

Journal of Environmental Science and Health . Part A: Environme

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The effect of Rustamia sewage treatment plant on the species composition, spatial and temporal variations of phytoplankton population in Tigris and Diyala rivers were studied for the period between October 1991 to May 1992. Diyala River had more algal taxa (85 tiixa) than Tigris (36 taxa). Bacillariophyta was dominated in both rivers (40 and 46 taxa, respectively) followed by Chlorophyta then Cyanophyta. Other phyla were also observed. The total phytoplankton and diatom biomass at both rivers showed seasonal variation with low densities in January ( 10544 X index was observed at stations which affected by wastewater inflow. The saprobiological investigations for both rivers were discussed. The water of Tigris and Diyala rivers considered as β-to α-mesosaprobic.Introduction:

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“…Dominance of the diatoms in the estuary was also reported by , Huq et al (1978), Al-Saadi et al (1979b), Maulood et al (1979) and Al-Saadi & Antoine (1981) . Diatom dominance was also reported in a variety of aquatic habitats in Iraq ; Maulood et al 1981 ;Saad & Antoine 1978b) . The higher numbers of the Myxophyta in June might be attributed to the high temperature and dissolved organic matter (Saad & Antoine 1982) .…”

Section: Phytoplankton Variationsmentioning

confidence: 99%

“…Muell .) Hendey) appears to be restricted to the marshes (Pankow et al 1979 ;Hinton & Maulood 1980 ;Maulood et al 1981) and downstream areas, such as the River Tigris (Antoine, in press) and the Shatt al-Arab and its canals (Al-Saadi et al 1979a,b ;Saad & Antoine 1982) and the lower reaches of the Rivers Tigris and Euphrates . Kolbe & Krieger (1942) also recorded this species in a salt pond in the middle Euphrates valley .…”

Section: Phytoplankton Variationsmentioning

confidence: 99%

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Effect of pollution on phytoplankton in the Ashar Canal, a highly polluted canal of the Shatt al-Arab Estuary at Basrah, Iraq

Saad

Antoine

1983

Hydrobiologia

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The effect of pollution on the phytoplankton in the Ashar Canal was studied during March and June 1976 . Higher temperatures were recorded in June . The canal water was more turbid than that of the adjoining Shatt al-Arab estuary due to high algal populations and sewage disposal . The chlorosity values were remarkably high in the canal, due to sewage disposal . The flood waters in June lowered the chlorosity in both estuary and canal . Sewage disposal into the canal decreased its dissolved oxygen content . The lower oxygen values in the estuary in June were accompanied with higher temperatures . The pH values were generally higher in the estuary and were also higher in June than in March .Eighty-six algal taxa were recorded, 45 of which were diatoms . The phytoplankton in the estuary was more abundant in March, due to the increase in currents and turbidity in June . The Chlorophyta, Conjugatophyta, Myxophyta and Bacillariophyta in the estuary showed reverse seasonal trends from those of the total phytoplankton . These algae seemed to flourish during periods of high temperatures . The dense blue-green algae recorded in June is attributed to the high temperature and dissolved organic matter . The Chrysophyta recorded high populations in the estuary in March and were totally absent in June . Lower temperatures and high transparency in March might have led to their relative abundance .The total phytoplankton in the Ashar Canal followed two different seasonal trends, one resembling and the other differing from those in the estuary . The disposal of domestic sewage and agricultural wastes in the canal seemed to lead to such adverse seasonal variations . The diatoms only dominated the phytoplankton at one station in both months . The sewage and agricultural wastes disposal seemed to favour the abundance of the other phyla than the diatoms . Increased organic load in the canal has led to a considerable increase in the Myxophyta in June . Blooms of Chlamydomonas sp . and Euglena acus increased the phytoplankton densities in March at stations II and IV, respectively . Benthic or periphytic algae were found in the phytoplankton populations . Raised salinity seemed to restrict the distribution of the planktonic diatom Bacillaria paradoxa . Among the noticeable widespread planktonic algae in the study area are Dinobryon sertularia, Pediastrum duplex and P . simplex .

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On the algal ecology of the lowland Iraqi marshes

Cited by 34 publications

References 4 publications

Desmids of Iraq

Desmids of Iraq

The impacts of sewage treatment plant on phytoplankton of Diyala and Tigris rivers

Effect of pollution on phytoplankton in the Ashar Canal, a highly polluted canal of the Shatt al-Arab Estuary at Basrah, Iraq

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