ORIGINAL_ARTICLE
RELATION BETWEEN WATER QUALITY AND PHYTOPLANKTON STANDING CROP IN THE RIVER NILE AT BENI SUEF (EGYPT)
Water quality and phytoplankton standing crop were monitored seasonally for a year. Seasonal variability in effluent discharge explained much of the variation in water quality parameters; however, deviations from this correspondence were significant. Nutrient (N and P) concentrations remained low through late fall and suddenly increased, which was hypothesized to be due to turnover in this large, relatively deep river. Algal biomass increased earlier than nutrients, but decreased rapidly in early winter and remained low for approximately 3 months. The winter decrease in algal biomass was hypothesized to be caused by elevated turbidity levels in the River Nile - associated with hyacinth removal and channel dredging activities. Diatoms dominated the phytoplankton throughout the year, with greater relative abundances of green algae near the city. Aulacosira granulata was the dominant species throughout the period of study. The city affected water quality by increasing the concentrations of nutrients and most other ionic compounds, as well as algal biomass
https://egyjs.journals.ekb.eg/article_114150_03948feeb2811aa2ec29fb9db2921972.pdf
2006-12-30
123
139
10.21608/egyjs.2006.114150
algae
human activities
pollution
Rivers
water quality
Mohamed
Abdel Hameed
1
Botany Department, Faculty of Science, Beni Suef University, Egypt
AUTHOR
Robert
Stevenson
2
Department of Zoology, Michigan State University, East Lansing, MI, 48824, USA
AUTHOR
Abdel-Hamid, M. I.; Shaaban, D.S. A. and Skulberg, O.M. (1992).Water Quality of the River Nile in Egypt: I. Physical and Chemical Characteristics. Archiv für Hydrobiologie, Supplement AHBSA8, 90(3): 283-310.
1
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Bourrelly, P. (1972). Les Algues d'Eau Douce. N. Boubee et Cie, Paris. Tome I. Les Algues Vertes. Éditions N. Boubée & Cie, Paris, France. 511 pp.
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47
ORIGINAL_ARTICLE
WATER QUALITY OF THE RIVER NILE AT MINIA, EGYPT AS EVALUATED USING ALGAE AS BIOINDICATORS
A sector of the river Nile at Minia governorate was studied for water quality estimation. Physicochemical and algal investigations were performed in the period May 2003- April 2004. The effect of discharge from a drainage stream that connects with the river was reflected on water chemistry and algal communities of the Nile. Receiving pollutants from the drainage stream affected the Nile water that became increased in electrical conductivity, COD, total alkalinity, NO3-, PO43-, Cl-, Si2O32-, Ca2+, Mg2+, Na+, and K+.Other parameters were decreased namely; visibility, dissolved oxygen and oxygen saturation. During the period of study, 167 algal taxa were recorded, 22.2% of which were cyanophytes, 3.6% euglenophytes, 27.5% chlorophytes and 46.7 %were bacillariophytes. Being subjected to pollution the river Nile showed an increased diversity of species whereas the polluted drain accounted for the least species diversity, composed mainly of pollution-tolerant taxa. Size of algal populations was also increased as a result of discharge of pollutants into the river whereas the drainage stream showed the least dense algal populations. The drainage stream was characterized by the prevalence of the saprophilic Euglena spp. and cyanophytes such as Oscillatoria amoena, O. chlorina, O. limosa, O. subbrevis, O. subtilissima and Phormidium mucosum.Most of these species were also recorded in the river Nile indicting its contamination with organic matter and mineral salts.Diatom species with high affinity to organic matter and increased salt content were also detected in the river such as Amphora inariesis, Gomphonema clevei, Navicula atomus, N. cuspidate, N. pygmaea, N. phyllepta, Nitzschia linearis, N. palea, N. umbonata, and Pleurosigma salinarum.
https://egyjs.journals.ekb.eg/article_114160_8bf5e756a813751cbf1aa79dc2a34ffc.pdf
2006-12-30
141
162
10.21608/egyjs.2006.114160
River Nile
water quality
Bioindicator algae
Upper Egypt
M.
El-Naghy
1
Botany Department, Faculty of Science, Minia University, 61519 Minia, Egypt
AUTHOR
A.
El-Shahed
2
Botany Department, Faculty of Science, Minia University, 61519 Minia, Egypt
AUTHOR
A.
Fathy
3
Botany Department, Faculty of Science, Minia University, 61519 Minia, Egypt
AUTHOR
S.
Badri
4
Botany Department, Faculty of Science, Minia University, 61519 Minia, Egypt
AUTHOR
Abdel-Hamid, M. I.; Shaaban-Dessouki, S. A. and Skulberg, O. M. (1992). Water quality of the river Nile in Egypt. I. Physical and chemical characteristics. Arch. Hydrobiol./ Suppl., 90(3):283-310.
1
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53
ORIGINAL_ARTICLE
A COMPARATIVE STUDY OF PHYTOPLANKTON COMMUNITY STRUCTURE AND THEIR ENVIRONMENTAL VARIABLES AT THREE DIFFERENT WATER BODIES IN ISMAILIA, PROVINCE
Three different locations in, Ismailia, Egypt was chosen for this study during the period from autumn 2005 to summer 2006. Blue-green algal bloom occurred during winter in Ismailia freshwater canal. Physico-chemical parameters varied among the selected freshwater, marine and brackish water bodies, chlorophyll a at all water bodies were more or less correlated with the total phytoplankton counts through the study period. Phytoplankton samples yielded a diverse array of algae including a total of 116 taxa have been identified. Most of them belong to Chlorophyceae (31); Bacillariophyceae (51); Cyanophyceae (19); Dinophyceae (12); one species of Cryptophyceae and two species belong to Euglenophyceae. The result indicated that the most important environmental variables affecting the differences and distribution of phytoplankton among the selected three different water bodies are nitrogen in the form of nitrate and ammonium which was highly correlated with the leading species of phytoplankton whilePO4,salinityand water temperature are highly negatively correlated with it while lead is not affecting the phytoplankton. Other variables showed no significance correlations with the exception of chlorophyll a which had a highly negative correlation.
https://egyjs.journals.ekb.eg/article_114164_f93bc17c50ac56f189842af8327dad94.pdf
2006-12-30
163
184
10.21608/egyjs.2006.114164
Abeer
Amin
1
Depart. of Botany, Fac. of Science, Suez Canal University, Ismailia, Egypt.
AUTHOR
Abd EL-Hamid, S. (1997).Comparative evaluation of drinking water quality and water purification systems in Ismailia Governorate. M.Sc. thesis, Bot. Dep. Fac. of Sci. Suez Canal Univ.
1
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Amin. A. S., (2001). Distribution Pattern of freshwater algae and their toxins in raw and municipal water in Port-Said province. Ph. D. thesis, Bot. Dep. Fac. Sci. Sues Canal Univ. 157pp. and Appendix.
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El-Ayouty, E. and Ayyad, E. (1980). Distribution of phytoplankton along the River Nile. Water Supply and Management, 4:35-44.
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Kobbia, I.A., Hassan, S.K.M. and Shoulkamy, M.A. (1990). Standing crop and distribution of phytoplankton in relation to status of a polluted drain at Minia Povince. (Upper Egypt). Bull. Fac. Sci. Assuit Univ. 19:247-264.
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Kobbia, I. A; Dowidar, A. E.; Shabana, E. F., and Al-Attar, S. A. (1993). Succession, Biomass levels of phytoplankton in the Nile water near the Starch and Glucose Factory at Giza, (Egypt). Egyptian Journal of Microbiology, 28(1):131-143.
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70
ORIGINAL_ARTICLE
PRELIMINARY STUDY ON THE DIATOM FLORA OF COASTAL PERIPHITIC ASSEMBLAGES OF THE RED SEA AND SUEZ GULF, EGYPT.
Diatom flora of the coastal assemblages of the red Sea and Suez gulf in Egypt was investigated. 191 diatom taxa of diatoms were identified; 58 genera and 10 families. Naviculaceae (101 taxa), fragilariaceae (35 taxa), bacillariaceae (20 taxa and achnanthaceae (12 taxa) were the most common families. The data indicate that diatom populations of the study area appeared to be mainly dependent on the growth of certain genera viz; Mastogloia, Nitzschia, Amphora and Diploneis. Diatom assemblages were characteristic of tropical/ subtropical marine waters, however, a number of alloctonous diatom species were also recorded.
https://egyjs.journals.ekb.eg/article_114165_b5252aad97416650a57b36a3f40ade1c.pdf
2006-12-30
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10.21608/egyjs.2006.114165
Marine diatoms
Periphyton
coastal waters
Red Sea
Egypt
Ahmed
El-Shahed
1
Botany Department, Faculty of Science, Minia University, 61519 Minia, Egypt
AUTHOR
Boney, A. D. (1989). Phytoplankton. Edward Arnold Pub., London, New York, Melbourne, Aucland. 118 pp. Cleve-Euler, A. (1951-1955). Die Diatomeen von Schweden und Finnland. K. Svenska Vet. Akad. Handl. Serie 4, 2/1: 1- 163 (1951); 3/3: 1-153 (1952); 4/1: 1-158 (1953); 4/5: 1-225 (1953); 5/4: 1-232 (1955).
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Dowidar, N. M. (1983). Primary production in the central Red Sea off Jeddah. Bull. Nat. Inst. Oceanogr. and Fish. A.R.E., 9: 160- 170.
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Edwards, F. J. (1987). Climate and oceanography. In: Edwards A. J. and Head S. M. (eds), Key environments, Red Sea. Pergamon Press, Oxford, 45-70pp.
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El-Naggar, A.; Osman, M.; El-Sherif, Z. and Nassar, M. (2002). Phytoplankton and seaweeds of Suez Gulf (from Red Sea) in relation to some physico-chemical factors, oil and sewage pollution. Bull. Fac. Sci. Assiut Univ., 31(I-D):77- 104.
4
Halim, Y. (1969). Plankton of the Red Sea. Oceanogr. Mar. Biol. Ann. Rev., 7:231- 275.
5
Hustedt, F. (1930). Die Kieselalgen. In: Rabenhorst (ed.) Kryptogamen Flora von Deutschland, Osterrisch und der Schweiz, 7(1): 920 pp.
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11
Krammer, K. and Lange-Bertalot, H. (1991a). Bacillariophyceae.3.Teil: Centrales, Fragilriaceae, Eunotiaceae. In: Ettl, H., Gerloff, J., Heying, H. and Mollenhauer, D. (eds): Süβwasserflora Mitteleuropa 2/1, Pub. G. Fischer Verlag, Stuttgart- Jena, 576 pp.
12
Krammer, K. and Lange-Bertalot, H. (1991b). Bacillariophyceae.4.Teil: Achnanthaceae, Kritische Ergänzungen zu Navicula (Lineolatae) und Gomphonema, Gesamtliteraturverzeichnis. In: Ettl, H., Gerloff, J., Heying, H. and Mollenhauer, D. (eds): Süβwasserflora Mitteleuropa 2/1, Pub. G. Fischer Verlag, Stuttgart- Jena, 437 pp.
13
Lange-Bertalot, H. (1993). 85 nue taxa, und über 100 weitere neu definierte taxa ergänzend zur Süβwasser von Mitteleuropa Vol. 2/1-4. In: Bibliotheca Diatomologica. Band 27. J. Kramer, Berlin, Stuttgart. 454 pp.
14
Metzeltin D. and Witkowski A. (1996). Diatomeen der Bären-Insel, Süβwasser und marine Arten. In: Lange-Bertalot H. (eds): Iconographia diatomologica, annotated diatom micrographs. Vol. 4 Taxonomy. Koeltz Scientific Books, Königstein, Germany. 287 pp.
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Seeberg-Elverfeldt, I. A. (2004). Laminated diatomaceous sediments of the Red Sea, their composition and significance as recorders of abrupt changes in productivity and circulation during the Late Quaternary. Ph. D. Thesis, Bremen University, Germany, 127 pp.
17
Shaikh, E. A.; Roff, G. C. and Dowidar, N. M. (1986). Phytoplankton ecology and production in the Red Sea off Jeddah, Saudi Arabia. Marine Biology, 92:405-416.
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Witkowski, A.; Lange-Bertalot, H. and Metzeltin, D. (2000). Diatom flora of marine coasts I. Gantner Verlag Pub. Köngenstein. 925 pp.
21
Wojtal, A. and Sobczyk, L. (2006). Composition and structure of epilithic diatom assemblages on stones of different size in a small calcareous stream (S Poland). Arch. Hydrobiol. Suppl. 162/ Algol. Stud., 119:105-124.
22
Zalat, A. (1997). Distribution of Holocene diatoms and silicoflagellates in bottom sediments of the Lake Timsah, Suez Canal area, Egypt. Egyptian J. Geol., 41(1):103-128.
23
ORIGINAL_ARTICLE
ALGAL FLORA OF AIN HELWAN I. ALGAE OF THE WORM SPRING
Seasonal water samples were collected during the period of April 2004 to January 2005 and physico-chemical analyses were performed for each sample. Isolation and identification of the different algal species were carried out. Concerning the physical water characteristics, temperature of the water samples, during the period of study, ranged 26 - 30 ºC, pH values ranged 6.9 – 7.78 and light intensities, received by the surface of shallow water of the spring, ranged 26.4-115 Klux. On the other hand the values of chemical water characteristics (anions, cations, micronutrients) were seasonally fluctuated and no detection of cobalt and cadmium were recorded. The total identified algal flora in the water samples of the four seasons recorded 209 species and 116 genera belonging to 8 algal divisions; Cyanobacteria, Chlorophyta, Bacillariophyta, Chrysophyta, Xanthophyta, Euglenophyta, Dinophyta and Charophyta. Cyanobacteria were the maximally represented division (91 species and 29 genera) during the period of study, followed by Chlorophyta (59 species and 45 genera), Bacillariophyta (52 species and 35 genera), Chrysophyta and Euglenophyta were represented each by (2 species and 2 genera).While, the least representative algal divisions were Charophyta, Dinophyta and Xanthophyta (1 species and 1 genera). The largest algal biomass was recorded in winter sample (138 species and 92 genera) followed in descending order by autumn (87 species and 56 genera), summer (71 species and 45 genera) and spring samples (48 species and 25 genera). It seemed that the diversity of algal flora in water samples was mainly controlled by and significantly correlated with some physico-chemical characteristics of water samples.
https://egyjs.journals.ekb.eg/article_114166_5aa1f142f969554d7b9188ca43f6ae79.pdf
2006-12-30
209
231
10.21608/egyjs.2006.114166
Algal flora
Ain Helwan
Physico-chemical analyses
Worm Spring
Sanaa
Shanab
sanaashanab@gmail.com
1
Botany department, Faculty of science, Cairo University
AUTHOR
Abdou, I. I. M. (1994). Geology and hydrogeology of the Helwan area, Egypt M.Sc. thesis, Geology department, Faculty of science, Menoufia University.
1
Abou-El Kheir, W. S. and Mekky, L. (1986). Studies on the algal floras inhabiting different water sources in Egypt. 2-Lakes and Springs. Phytologia, 61(5):285-296.
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Abou-El kheir, W. S and Ismail, G. H. (1986). Notes on the aquatic habitats of macrophytes and associated algae in various regions in Egypt. 1- El-Fayum region. Phytologia, 60:469-482.
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Abrontes, N.; Antunes, S. C.; Pereira, M. J. and Gonalves, F. (2006).Seasonal succession of cladocerans and phytoplankton and their interactions in a shallow eutrophic lake (Lake Vela, Portugal. Acta Oecologica, 29(1):54-64.
4
Ali, S. S.; Jafri, S.I.H.; Leghari, S.M. and Thebow, S. (1983). Studies on the flora and fauna of a hot sulphur spring at Lakki (district Dadu), Sind, Pakistan. Kar. Univ.J. Sci., 11(2):185-197.
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APHA (1985). Standard methods for the examination of water and wastewater, 16thed. American public health association, Washington, DC, USA, 1268 pp.
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Arif, I. A. (1989).Algal distributions in a warm spring of Saudia Arabia. Arab Gulf J. Scient. Res., 7(2):145-154.
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Bourrelly, P. (1968). Les algues d'eau douce, initiation à la systématique.Tome II. Les Algues Jaunes et brunes,Chrysophycees,Xanthophycees et Diatomees.Ed.N. Boubee and Cie, Paris, France, pp.438.
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Bourrelly, P. (1970). Les algues d'eau douce, initiation à la systématique. Tome III. Les algues bleues et rouges. Ed. N. Boubée and Cie, Paris, France, 512 pp.
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Boyed ,C.E. (1984) Water quality in warm water fish ponds .Auburn University Agri .Exp. Sta .,Auburn, Alabama .
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Cox, E. J. (1996). Identification of fresh water diatoms from live material-Chapman and Hall, 2-6-Boundary Row, London SE 1 8 HN, U.K., 156 p.
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Desikachary, T.V. (1959).Cyanobacteria, Monographs on Algae Academic press, New York and London.
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Doeck, K. and Tracey, M.V. (1956).Modern methods of plant analysis-Springer Verlag, Berlin.
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Domingues, R.B.; Barbosa, A. and Galvao, H. (2005).Nutrients, light and phytoplankton succession in a temperate estuary (the Guadiana, south-western Iberia). Estuarine, Coastal and Shelf Science, 64(2-3):249-260.
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El-Gamal, A. D. and Salah El-Din, R. A. (1999). New species of the genus Compsopogon montagne (C. helwanii) from Egypt. Phykos, 38(1and2):37-42.
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El-Kiki, J. E.; Mabrook, B. and Swailem, F.M. (1978). Evaluation of trace elements and tritium content in some mineral springs in Egypt. Isotope and Rad.Res., 10(1):55-82 .
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El- Ramly, I. M. (1969). Recent review of investigations on the thermal and mineral springs in the UAR. XXIII Int .Geol. Cong., 16: 201-213.
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Foged, N. (1980). Diatoms in Egypt. In: Nova Hedwigia Band XXXIII-Braunschweig 1980. J. Cramer, 629-707.
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Gaballah, M. M.; Touliabah, H. E. and Serage, M. S. (2000).Diatom communities associated with some aquatic plants in polluted water courses, Nile Delta. Egypt. J. Phycol., 1:211-224.
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Hamed, A. F.(1995). Studies on the algal flora of some thermal springs in Egypt. Ph.D.Thesis Ain Shams University, Faculty of Science, Botany Department, 161 P.
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Issar, A.; Rossenthal, E.; Eckstein, I. and Bogoch, R. (1971). Formation waters, warm springs and mineralization phenomena along the eastern shore of the Gulf of Suez. Bull. Int. Assoc. Sci. Hydrology, 16(3):25-44.
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Jaha, M. and Kumar, H. D. (1990). Cyanobacterial flora and physico-chemical properties of Saptadhara and Brahma Kund warm springs of Rajgir, Bihar, India. Nova hedwigia, 50(3-4 ):529-534.
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Kobbia, I. A.; Shabana, E. F.; Dowidar, A. E.; and El-Attar, S. A. (1990). Changes in physico-chemical characters and phytoplankton structure of Nile water in the vicinity of iron and steel factory at Helwan (Egypt). Egypt. J. Bot., 33(3):215-233.
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Kobbia, I. A.; Dowidar, A. E.; Shabana, E. F. and El-Attar, S. A. (1993). Succession Biomass level of phytoplankton in the Nile water near the starch and glucose factory at Giza (Egypt). Egypt. J. Microbiol., 28(1):131-143.
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Prescott, G.W. (1978). How to know the fresh water algae. Brown Company publishers Dubuque, Iowa, USA, pp. 12-267.
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Prescott, G.W. (1982). Algae of the western great lakes area W.M.C.Brown Publ. Dubuque, Iowa, pp.1-977.
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Reeders, H. H.; Boers, P. C. M.; Van der Malen, D. J. and Helmerhorst, T. H. (1998).Cyanobacteria dominance in the lakes veluwemeer and wolderwijd, the Netherlands. Water Science and Technology, 37(3):85-92.
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Schoeman, F. R. and Archibald, R. E. M. (1988). Taxonomic notes on the diatoms (Bacillariophyceae) of the Gross Barmen thermal springs in South West Africa/Namibia. S. Afr. J. Bot., 54(3):221-256.
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Seoane, A. N. (1990). Phycological study of the thermal spring of Torneiros Levios , Spain. Anales del Jardin Botanico de Madrid, 47(2):295-300.
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Shaaban, A. S. (1985). The algal flora of Egyptian Oases. 11- On the algae of Siwa Oasis. Proc. Egypt. Bot. Soc., 4:1-10.
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Shaaban, A. S. and El Habibi, A. (1978). The algal flora of Egyptian Oases .1- The algal flora of Kharga Oasis. Bull. Inst. Dest., 28(1):227-232 .
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Sompong, U.; Hawkins, P. R.; Besley, C. and Peerapornpisal, Y. (2005).The distribution of cyanobacteria across physical and chemical gradients in hot springs in northern Thailand. FEMS Microbiology Ecology, 52(3):365-376.
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45
ORIGINAL_ARTICLE
ALGAL FLORA OF AIN HELWAN II. THE SOIL ALGAE
Seasonal soil samples were collected, from soils on both sides of the spring passage, during the period of April 2004 to January 2005 and physico-chemical analyses have been performed for investigation. Isolation and identification of the different algal species were carried out. Concerning the physical soil characteristics, fluctuations of environmental temperature were seasonally recorded which ranged 15 - 44 ºC, pH values ranged from slightly acidic to moderately alkaline (6.5 – 8.6) and soil moisture content ranged 20.3- 30.6%. Seasonal fluctuations in chemical soil characteristics were recorded (anions, cations and micronutrients). The total identified algae in the soil samples were 86 genera and 165 species belonging to four algal divisions; Cyanobacteria (98 species), Chlorophyta (34 species), Bacillariophyta (32 species) and only one species belonging to Chrysophyta. Autumn soil sample recorded the maximum number of algal population followed in descending order by spring, summer, and winter soil samples. It seemed that the diversity of algal community in soil samples was mainly correlated with some physico-chemical characteristics of the soil samples.
https://egyjs.journals.ekb.eg/article_114171_398526c77a09024584d9b3b681aee11a.pdf
2006-12-30
233
246
10.21608/egyjs.2006.114171
Ain Helwan
Physico-chemical analyses
Soil algal flora
Sanaa
Shanab
sanaashanab@gmail.com
1
Botany department, Faculty of science, Cairo University
AUTHOR
Abdel-Rahman, M. H. M.; Ali, R. M. and Said, H. A. (2004).Soil algae in different habitats at El Fayoum Governorate (Egypt). Egypt. J. Biotechnol., 18:170-183.
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Kobbia, I. A.; Dowidar, A. E.; Shabana, E. F. and El-Attar, S. A. (1993).Succession Biomass levels of phytoplankton in the Nile water near the starch and glucose factory at Giza (Egypt). Egypt. J. Microbiol., 28 (1):131-143.
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Salama, A. M. and Kobbia, I. A. (1982).Studies on the algal flora of Egyptian soils. II. Different sites of a sector in the Libyan desert. Egypt. J. Bot., 25:139-158.
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50
ORIGINAL_ARTICLE
CHANGES IN PHYTOPLANKTON COMMUNITY STRUCTURE IN RELATION TO DIFFERENT WASTES DISCHARGING INTO ROSETTA BRANCH (EGYPT)
Six cruises to the polluted areas of Rosetta branch were carried out from January 2003 to November 2003 on bimonthly basis. Raw sewage from El-Rahawy drain and industrial effluents from Kafr El-Zaiyat factories represent the highly polluted area along Rosetta Nile branch. Dissolved oxygen was completely depleted at discharging area of raw sewage. Total organic nitrogen at two wastes was higher than inorganic forms. Ammonium concentrations loaded with raw sewage (2.87 mg/L) were much higher than that recorded in effluents of Kafr El-Zaiyat factories and exceed the maximum acceptable concentration (0.1 mg/L). Also, total organic phosphorus at the mixing areas of the two wastes increased than the upstream stations. Trace metal concentrations loaded with industrial effluents were distinctly high compared to domestic sewage either water or sediment. Phytoplankton communities at the discharging point of raw sewage and industrial waste showed an obvious decline compared to upstream and downstream stations. Bacillariophyceae dominated upstream of El-Rahawy stations, Chlorophyceae dominated downstream, while Cyanophyceae dominated mixing area. On the other hand, Chlorophyceae dominated at all stations of Kafr El-Zaiyat. This study aimed to avoiding discharge of raw sewage and industrial wastes into River Nile after explaining their hazardous impact on aquatic environment.
https://egyjs.journals.ekb.eg/article_114174_4211dfc689069c7970fbd1dfc0dedbec.pdf
2006-12-30
247
263
10.21608/egyjs.2006.114174
Rosetta Branch
pollution
phytoplankton
Chlorophyll a
Adel
Konsowa
1
National Institute of Oceanography and Fisheries, Fish Research Station – El Kanater El-Khyria, Cairo, Egypt
AUTHOR
Rawheya
Salah El Din
rawheyaabdellatif@gmail.com
2
Faculty of Science, Botany Department, Al-Azhar University, Girls Branch
AUTHOR
Ahmed
El-Awamri
3
Faculty of Science, Botany Department, Ain-Shams University
AUTHOR
Shymaa
Zaher
4
National Institute of Oceanography and Fisheries, Fish Research Station – El Kanater El-Khyria, Cairo, Egypt
AUTHOR
Abdel Aziz, S. G. (2005): Study of the water quality of the River Nile, with relation to the environmental condition at El-kanater El-Khyria Region. M. sc. Thesis, Fac. Sci. (Girls), Chemistry Departement, Al-Azhar University, 188 pp.
1
Abd El-Karim, M. S. (1999): Phytoplankton dynamic and its productivity in Damietta branch. M. Sc. Thesis, Fac. of Girls, Ain Shams Univerisity, 202pp.
2
Abd Ellah, R. G. and Konsowa, A. H. (2002): Physico-chemical characteristic and their effects on phytoplankton community in Wadi El-Rayian Lakes, Egypt. J. Egypt Acad. Soc. Environ. Develop. (D-Environmental Studies), 3(2): 29-51.
3
Abdel-Hamid, M. I.; Shaaban-Dessouki, S. A. and Skulbery, O. M. (1992): Water quality of the River Nile in Egypt .I.Physical and chemical characteristics .Arch. Hydrobiol. (Suppl. 90), 3:283-310.
4
Abdel-Satar, A. M. (1998): Distribution of some elements in the River Nile environment at Great Cairo region. Ph. D. Thesis, Fac. of Sci. Cairo, Egypt, 249pp.
5
Abdo, M.H. (2002): Environmental studies on Rosetta branch and some chemical application in the area extended from El-Kanater El-Khyria to Kafr El-Ziat City. Ph. D. Thesis Fac. of Sci., Ain Shams Univ. Cairo, Egypt 466 pp.
6
Abou El-Kheir, W. S.; El-Shimy, A.; Abdel-Salam, N. (2000): Seasonal variations in phytoplankton structure in some industrial polluted areas along Ismailia canal Egypt. Al-Azhar Bull. of science proceeding of 5 Int. Sci. Conf. 25-27, March 2000: 225-242.
7
Ahmed, Z. A. (1983): Studies on phytoplankton of the Nile system in Upper Egypt. M.Sc. Thesis, Botany Dep. Fac. of Sci., Assiut Univ., 144pp.
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American Public Health Association (APHA) (1995): Standard Methods for the Examination of Water and Waste Water 19th A.P.H.A. AWWA.WPCF. American Public Health Association 1015. 15th St. N. W. Washington D.C. 2005.
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Bores, P.C.M. (1991): The influence of pH on phosphate release from lake sediments. Wat. Res., 25(3): 309-311.
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Ghallab, M. H. M. (2000): Some physical and chemical changes on River Nile downstream of Delta Barrage at El-Rahawy Drain. M. Sc. Thesis, Fac. of. Sci., Ain Shams Univ. Cairo, Egypt 256pp.
16
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Konsowa, A. H. and Taha, O. E. (2002): Physico-chemical characteristics and species composition of phytoplankton at the fresh water and Estuary of Rosetta branch of the Nile (Egypt). J. Egypt. Acad. Soc. Environ. Develop., (D-Environmental studies), 3(1):85-105.
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Lebour, F. Z. S. and Forssa, V. (1986): The dinoflagellates of Northen sea" published by Marine Biological Association of the United Kingdom. 250 pp.
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Raymont, J. E. G. (1980): Plankton and Productivity in the Oceans Publisher : Report Maxwell,M.C.,2nd Edition .I phytoplankton. 489pp.
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Sayed, M. F. (2003): Chemical studies of pollution in Rosetta branch of River Nile between Kafr El-Ziat and Rosetta outlet. Ph. D. Thesis. Fac. of Sci., Cairo Univ. Egypt. 403pp.
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Shaaban-Dessouki, S. A.; Soliman, A. I. and Deyab, M. A. (1993): Environmental characteristics and nutrient distribution in Damietta Estuary of the River Nile. Inviron. Sci., 6: 159-177.
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Soria J. M., Miracle, M. R and Vicente, E. (1987): A porte de nutrients eulsofizacion de la albufea de valencia. Limnetica, 3: 227-242.
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Strickland, J. D. H. and Parsons, T. R. (1968): A practical handbook of seawater analysis. Bull. Fish. Res. Board Can. 167: 311pp.
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Taha, O. E. and Farghaly, M. E. (1994): Ecological studies on Wadi El-Raiyan Lakes. II-Distribution of phytoplankton and Chlorophyll a. Vet. Med. j., Giza, 42(3): 139-149.
31
Taha, O .E.; Afifi, M. A. and Sobhy, E. H. M. (2001): Pysico-chemical properties and phytoplankton composition of the River Nile at Helwan area, Egypt. J. Egypt. Acad. Soc. Environ. Develop.,(D- Environmental Studies) 2(4): 1-29.
32
Tilzer, M. (1988): Secchi disc-chlorophyll relationship in a lake with highly variable phytoplankton biomass. Hydrobiol. 162: 163-171.
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36
ORIGINAL_ARTICLE
FRESHWATER BENTIC DIATOMS IN NILE DELTA AND EL-FAYUM, EGYPT
Freshwater Benthic algal samples were collected from seven governorates in the Nile Delta (1- El-Sharkia. 2- El-Gharbia. 3-El-Dakahlya. 4- Damietta. 5-El-Menofia. 6- El-Beheira. 7-Kafr El-Sheikh.) in addition to El-Fayum governorate during the period 2001-2004. The study was made for collecting and identifying as much as possible of the diatom species which occur in the different freshwater benthic habitats. A total of 220 taxa related to 38 genera were identified during this work, 199 taxa from the different localities in Nile Delta and 144 taxa from El-Fayum. The distribution and mean frequencies of diatoms in the sampling localities of the studied area were done. Most of species recorded in this investigation were oligohalobous cosmopolitan. This study showed also that Cyclotella meneghiniana, C. ocellata, Cocconeis placentula, Melosira granulata, Nitzschia palea, N. obtusa and N. obtusa var. scalpelliformis were the most prominent species in Nile Delta and El-Fayum. Ecological data as well as dimensions and photomicrographs of 29 taxa using LM and SEM were made.
https://egyjs.journals.ekb.eg/article_114175_5d23cf05b27f6fa39e7388ee6e44db4b.pdf
2006-12-30
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10.21608/egyjs.2006.114175
diatoms
Egypt
Flora
Taxonomy
Ahmed
El-Awamri
1
Botany Dept., Faculty of Science, Ain Shams Univ., Cairo, Egypt
AUTHOR
Abdel Aziz, S. G. (2005). Study of the water quality of the River Nile, with relation to
1
the environmental condition at El-kanater El-Khyria Region. M. sc. Thesis,
2
Fac. Sci. (Girls), Chemistry Departement, Al-Azhar University, 188 pp.
3
Abdin, G. (1949): Benthic Algal flora of Aswan Reservoir (Egypt). Hydroboil.
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2:118-133.
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Aleem, A.A. (1958). A taxonomic and palaeoecological investigation of the diatom
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flora of the extinct Fayoum Lake (Egypt). I. System. Part 2: Distrib. And
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Anonymous, (1975). Proposal for a standardization of diatom terminology and
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diagnosis. Nova Hedwigia, 52: 323-354
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Deyab, M.A.; Nemat Alla, M.M. and El Adl, M.F. (2000). Phytoplankton as
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indicator of water quality in the irrigation and drainage canals in
12
westernDamietta-Egypt. Egypt. J. Phycol, 1: 15-31.
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El-Awamri, A.F , Shaaban, A.S. and A.I. Saleh (2005). Diatom flora from different
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Aquatic Habitats in the Greater Cairo (Egypt) Int. J. Argri. Bio. 7(2): 230-39
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El-Ayouty, E.Y. and Ibrahim, E.A. (1980). Distribution of phytoplankton along the
16
River Nile. Water Supply and Management, 4: 35-44.
17
El- Shimi, A.A. (1984). Studies on diatoms of River Nile in A.R.E. Ph. D. Thesis.
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Univ. Coll. For Girls. Ain Shams Univ., 227 pp.
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Foged, N. (1980): Diatoms in Egypt. Nova Hedwigia, 33: 629-707.
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Gab-Allah, M.M. and Touliabah, H.E. (2000). Diatom assemblages in superficial
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Changes in phytoplankton community structure in relation to different wastes
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ORIGINAL_ARTICLE
IN SITU, EFFECT OF STOCK DENSITY OF OREOCHROMIS NILOTICUS (L.) FRY ON WATER QUALITY AND PLANKTON COMMUNITIES
Nile tilapias; Oreochromis niloticus (L.) were selected from River Nile during autumn (2004) to estimate the impact of its stock density on some physicochemical characteristics and plankton assemblage inhabiting the Nile water. Results revealed slight decrease in pH values with increase of incubation time and fish densities. Ammonium-N was higher than nitrite and nitrate concentrations. Total organic nitrogen (TON) and total organic phosphorus (TOP) were much higher than the corresponding values of inorganic forms. Chlorophyceae, Bacillariophyceae and Cyanophyceae were the prevailing algae while Chrysophyceae, Cryptophyceae and Dinophyceae were scarcely occurred. The small zooplankon, like rotifers, especially Keratella cochlearis (Gosse) and K. tropica (Apstein) were the most dominant organisms in the predation aquaria, Statistical analysis revealed the significant effect of fish densities and incubation time on green algae and diatoms. Also, the current data showed a significant impact of the stock fish density on zooplankton communities. Phytoplankton densities decreased gradually with time in aquaria stocked with 4 and/or 16 fishes and increased with that stocked with 8 or 12 fishes after 48 hours. Also, zooplankton communities increased after 48 hour. Therefore, the stock density of O. niloticus (L) should be increase from 0.8 to 1.6 g l-1in fish farms derive its water from River Nile. Also, tilapia culture in fish farms can be depend to a large extent on natural plankton production from Nile water.
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2006-12-30
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10.21608/egyjs.2006.114176
phytoplankton
Zooplankton
Oreochromis niloticus
Adel
Konsowa
1
National Institute of Oceanography and Fisheries, 101 Kasr Al-Ainy St, Cairo, Egypt
AUTHOR
Adel
Mageed
2
National Institute of Oceanography and Fisheries, 101 Kasr Al-Ainy St, Cairo, Egypt
AUTHOR
Hammed
Eladel
3
Faculty of Science, Benha University, Benha, Egypt
AUTHOR
Soaad
Sabae
4
National Institute of Oceanography and Fisheries, 101 Kasr Al-Ainy St, Cairo, Egypt
AUTHOR
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