Floristic composition of some drains south Manzala Lake

Document Type : Original Article

Authors

1 Botany Department, Faculty of Science, Mansoura University, Egypt

2 National Institute of Oceanography and Fisheries, NIOF, Egypt

10.21608/mjb.2021.460016

Abstract

The Nile River irrigates Egypt's cultivated lands almost indefinitely through a massive network of canals and drains. The current study aimed to describe the floristic composition of the three drains (El-Serw, Hadous and Bahr El-Baqer drains) south Manzala Lake in the Nile Delta region. In each station, all plant species were recorded in 5 plots (25 m² each) and the relative frequency (IV=100) was estimated. The total number of the recorded flowering plant species in the present study is 50 (36 perennials, one biennials and 13 annuals), belonging to 43 genera and related to 27 families. The main families are Poaceae, Chenopodiaceae, and Asteraceae, which together account for 18 species, or about 36% of the total species reported. Ecologically, these species can be divided into four classes.; three submerged, seven floating, thirteen emergent and 27 terrestrial species. It is also self-evident that the El-Serw drain is the most floristically diverse of all the ecological sites, followed by Bahr El-Baqer drain, and finally Hadous drain. The terrestrial plants are the most frequent species in the different studied three ecological drains. Cryptophytes dominate the life-form spectrum in three drains, with therophytes, chamaephytes, and hemicryptophytes filling in the gaps. The floristic analysis of the study area reveals that, 12 species (24 % of the total recorded species) are Mediterranean taxa as well as 32 species (about 64 % of the total recorded species) are worldwide species (Cosmopolitan, Palaeotropical, Pantropical and Neotropical)

Keywords

Mansoura Journal of Biology
Volume 52, Issue 3
October 2021
Pages 16-26

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