caa a22 4500 477096786 CHVBK 20180405111529.0 cr unu---uuuuu 170330e19960901xx s 000 0 eng 10.1007/BF01997138 doi (NATIONALLICENCE)springer-10.1007/BF01997138 Khedr Abdel-Hamid Botany Department, Faculty of Science, Mansoura University, Box 34517, New Damietta, Egypt aut Aquatic macrophyte distribution in Lake Manzala, Egypt [Elektronische Daten] [Abdel-Hamid Khedr] The macrophyte distribution of Lake Manzala is described in relation to water depth, salinity, dissolved oxygen, pH, Cl−, NO 3 − and PO 4 3− . Changes in species composition of macrophytes are visualised by means of multivariate analysis. The TWINSPAN classification and CANOCO ordination programs (DCA & CCA) were used to analyse the data set. The classification of 100 stands revealed 8 vegetation groups which indicated eleven dominant communities. These arePhragmites australis, Typha domingensis, Scirpus maritimus, Echinochloa stagnina and Ludwigia stolonifera as emergent hydrophytes;Eichhornia crassipes andAzolla filiculoides as floating hydrophytes. The dominant submerged hydrophytes arePotamogeton pectinatus, Najas armata, Ceratophyllum demersum andRuppia maritima. The northern part of the lake with low depth and relatively high salinity has low species diversity (mainly emergent species). Species diversity increases with decreasing salinity and increasing eutrophication near the mouths of the drains in the western and southern parts of the lake. The recent changes in species distribution can be attributed to the effects of salinity, water depth and drainage water. A checklist of macrophytes in the lake is appended. Kluwer Academic Publishers, 1997 aquatic macrophytes nationallicence ecological distribution nationallicence Lake Manzala nationallicence ordination nationallicence salinity nationallicence TWINSPAN nationallicence water depth nationallicence International Journal of Salt Lake Research Kluwer Academic Publishers 5/3(1996-09-01), 221-239 1037-0544 5:3<221 1996 5 10770 https://doi.org/10.1007/BF01997138 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01997138 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Khedr Abdel-Hamid Botany Department, Faculty of Science, Mansoura University, Box 34517, New Damietta, Egypt aut NATIONALLICENCE 773 0- International Journal of Salt Lake Research Kluwer Academic Publishers 5/3(1996-09-01), 221-239 1037-0544 5:3<221 1996 5 10770 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer