Possible relation between phytoplankton numbers and Saprolegnioid fungi in Shatt Al-Arab near Basrah, Iraq

Al‐Saadi, Hussain A.; Rattan, S. S.; Muhsin, T. Mohamed; Hameed, H. A.

doi:10.1007/bf00021017

Cited by 10 publications

(3 citation statements)

References 7 publications

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“…The numbers of Bacillariophyta exceeded those of the Chlorophyta and the Myxophyta in both months . 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) .…”

Section: Phytoplankton Variationsmentioning

confidence: 56%

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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Section: Phytoplankton Variationsmentioning

confidence: 56%

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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“…In addition to that the deposition of petroleum hydrocarbons toward the bottom lead to increase the bacterial aggregates which feed upon them, then the biodegradation will increase in the area following the increase of oxygen and nutrients like phosphate and nitrate (Zobell and Prokop, 1966). These observations were available in Shatt Al-Arab environment (Al-Saadi et al, 1979). This is why petroleum hydrocarbons are high at winter and low at summer (Atlas, 1981).…”

Section: Resultsmentioning

confidence: 99%

Temporal and spatial variations for petroleum hydrocarbons in water and sediments from Northern parts of Shatt Al-Arab River, Iraq

Al-Imarah

Ali

2022

MJMS

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Regional and temporal distribution of Total Petroleum Hydrocarbons (TPH's) and percent Total Organic Carbon (TOC %) were investigated in water and sediments from 5 stations along Shatt Al-Arab river (1-Qurnah, 2-Shafi, 3-Deer, 4-Nihran Omer and 5-Sinbad close to expected sources of pollution by petroleum hydrocarbons. Measured TPH's in the dissolved phase of water were ranged between 5.10 ng/l in station 3 and 9.48 ng/l in station 5 comparable to Basrah light crude oil. In the sediments levels of PHC's ranged between 7.37 mg/l in station 3 and 24.41 mg/l in station 5.Seasonal variations in TPH's in waters and sediments were found as lower concentrations 2.65–4.20 and 3.15–10.36 mg/l respectively during summer, while higher concentration recorded during winter were found to be 7.86–15.60 µg/l in water and 13.52–45.21 mg/g in sediments. % TOC measured in the sediments were ranged from 0.50 % to 0.81 % in stations 2 and 5 respectively. Strong positive correlations were found between TPH's and TOC for all stations with correlation coefficient (r = 0.93).

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“…Vishniac and Nigrelli (1957) demonstrated the ability of fourteen saprophytic species of Saprolegniaceae to infect Mexican Platyfish, Xiphophorus maculates. Other noteworthy works are that of Scott and O'Bier (1962), Scott and O'Warren (1964), Sprague (1965Sprague ( , 1966, Wolke (1975) and Al-Saadi et al (1979). The latest researches in this field includes those of Muszynska (1997, 2001); Czeczuga et al (2002); Kiziewicz (2004); Al-Rekabi et al (2005); Udomkusonsri et al, (2007); Refai et al (2010); Eli et al (2011) and Hussian et al (2013).…”

Section: International Journal Of Zoological Investigationsmentioning

confidence: 99%

Deep Mycoses in Certain Freshwater Fishes of Eastern Uttar Pradesh (India) Caused by Watermoulds

K¹,

K²,

Ahmad³

et al. 2019

IJZI

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Fungi are known to attack eggs, fry, fingerlings and adults of fishes and as a general rule the fungal infection starts when the host gets injured either mechanically or as a result of infections other than fungal. Besides the surface infections (dermatomycoses), the fungal pathogens penetrate into deeper tissues and cause deep mycoses damaging the internal tissues and organs. Anabas testudineus, Hypophthalmichtys molitrix, Labeo rohita, Labeo calbasu, Mystus mystus have been studied for the deep mycoses caused by watermoulds. The present investigations have shown several symptoms from tissue damage to the spinal curvature and an attempt has been made to assess the extent of deep dermal tissue destruction in Anabas testudineus parasitized by Pythium oligandrum Dreschler. The proteolytic enzyme production by the watermoulds has been found to be directly proportional to the intensity of fungal infection in fish.

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Possible relation between phytoplankton numbers and Saprolegnioid fungi in Shatt Al-Arab near Basrah, Iraq

Cited by 10 publications

References 7 publications

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

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

Temporal and spatial variations for petroleum hydrocarbons in water and sediments from Northern parts of Shatt Al-Arab River, Iraq

Deep Mycoses in Certain Freshwater Fishes of Eastern Uttar Pradesh (India) Caused by Watermoulds

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