Acta Botanica Hungarica
Volume/Issue:
Volume 45: Issue 1-2
Analyses of physico-chemical characteristics and phytoplankton communities of Lake Nasser during the last two decades
Authors:
A. M. El-Otify Department of Botany, Faculty of Science Aswan 81528, Egypt

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H. M. Shafik Department of Botany, Faculty of Science, Suez Canal University Balaton Limnological Research Institute, Hungarian Academy of Sciences Ismailia 41522, Egypt, H-8237 Tihany, Hungary

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E. Szőke University of Veszprém H-8200 Veszprém, Hungary

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Pages:
75–100
Online Publication Date:
22 Jul 2005
Publication Date:
01 May 2003
Article Category:
Journal Article
DOI:
https://doi.org/10.1556/abot.45.2003.1-2.8
Keywords:
phytoplankton; phytoplankton; diversity; Egypt; Distribution; Lake Nasser; long-term study; physico-chemical characteristics
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Lake Nasser is one of the largest man-made lakes in the world. The creation of Lake Nasser, due to the impoundment of the River Nile in Southern Egypt, was accompanied by alterations in the environmental conditions that consequently affect the biota. Such alterations lead to corresponding changes in the diversity, abundance and distribution of the phytoplankton community. Therefore, the phytoplankton populations were followed and investigated in Lake Nasser. The phytoplankton community structure revealed a floristical diversity and is composed of various planktonic algal taxa appertaining to the divisions: Chlorophyta, Bacillariophyta (diatoms), Cyanophyta (cyanobacteria), Dinophyta (Dinoflagellates) and Euglenophyta. Chlorophyta contribute more taxa to the phytoplankton than any other groups. However, diatoms and cyanobacteria are numerically the main components and alternate in dominance of the community. Dinoflagellates persist as frequent forms and the euglenoid algae are very scarcely represented. Remarkable spatial (horizontal and vertical) as well as temporal (seasonal) variations are recorded in the distribution of phytoplankton. Pronounced variations in the vertical distribution of the phytoplankton standing crop appear during the periods of thermal stratification (late spring, summer and early autumn). However, diatoms and cyanobacteria remain the most influential groups also in the vertical distribution of the phytoplankton. Water blooms are occasionally observed in limited areas of the southern region of Lake Nasser mainly due to the florishment of the cyanobacterium Microcystis aeruginosa.

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Cover Acta Botanica Hungarica
Acta Botanica Hungarica
Print ISSN:
0236-6495
Online ISSN:
1588-2578

Senior editors

Managing Editors

Editorial Board

  • Gy. BORBÉLY (Debrecen)
  • A. ČARNY (Ljubljana)
  • A. CSERGŐ (Dublin)
  • B. CZÚCZ (Paris)
  • M. HÖHN (Budapest)
  • K. T. KISS (Budapest)
  • A. KUZEMKO (Uman)
  • Z. LOSOSOVÁ (Brno)
  • I. MÁTHÉ (Szeged)
  • E. MIHALIK (Szeged)
  • S. ORBÁN (Eger)
  • R. PÁL (Butte)
  • Gy. PINKE (Mosonmagyaróvár)
  • T. PÓCS (Eger)
  • K. PRACH (České Budejovice)
  • E. S. RAUSCHERT (Cleveland)
  • E. RUPRECHT (Cluj Napoca)
  • G. SRAMKÓ (Debrecen)
  • A. T. SZABÓ (Veszprém)
  • É. SZŐKE (Budapest)
  • B. TOKARSKA-GUZIK (Katowice)
  • B. TÓTHMÉRÉSZ (Debrecen)
  • P. TÖRÖK (Debrecen)

Botta-Dukát, Zoltán
E-mail: botta-dukat.zoltan@okologia.mta.hu

or

Lőkös, László
E-mail: acta@bot.nhmus.hu
Institute: Botanical Department, Hungarian Natural History Museum
Address: Könyves K. krt. 40. H-1097 Budapest, Hungary

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2023  
Scopus  
CiteScore 1.7
CiteScore rank Q3 (Plant Science)
SNIP 0.749
Scimago  
SJR index 0.24
SJR Q rank Q3

Acta Botanica Hungarica
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Acta Botanica Hungarica
Language English
French
German
Russian
Spanish
Size B5
Year of
Foundation		 1954
Volumes
per Year		 1
Issues
per Year		 4
Founder Magyar Tudományos Akadémia
Founder's
Address		 H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-6495 (Print)
ISSN 1588-2578 (Online)

 

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