Contribution to the study of coastal floristry biodiversity in Oran

Topics: Endangered species, Mediterranean Sea, Biology Pages: 5 (1756 words) Published: August 11, 2015
J. Bio. & Env. Sci. 2015
Journal of Biodiversity and Environmental Sciences (JBES)
ISSN: 2220-6663 (Print), 2222-3045 (Online)
http://www.innspub.net
Vol. 6, No. 4, p. 75-79, 2015

RESEARCH PAPER

OPEN ACCESS

Contribution to the study of coastal floristry biodiversity in Oran Haddad Fatma Zohra1, Frih Faiza1, Noureddine Benaissa1, Zitouni Boutiba1, Ionela Dobrin2
1

Department of Biology, University of Oran, Laboratory Network for Environmental Monitoring

(LRSE), Oran, Algeria
2

Department of Plant Science, Faculty of Agriculture, University of Agricultural Science and

Veterinary Medicine, Bucharest, Romania
Key words: Oran coast, Biodiversity, Vegetation, coastal flora, Marsat-El Hadjaj.

Article published on April 11, 2015
Abstract
According to Eurostat report data (EU Statistical Office) the enormous impact of tourism on ecosystems would be one of the most important causes of biodiversity degradation in the Mediterranean countries. The Red List of IUCN (International Union for Conservation of Nature) records today some 16120 endangered species in the world. In this context we conducted this study of the coastal dunes vegetation in Oran, a subject whose work remain incomplete, and in the order to validate the presence of plant species threatened, vulnerable or likely to be so designated. A sampling was conducted during the year 2014 .All samples were identified using several reference books, including the new flora of Algeria of Santa and Quezel (1962-1963). Based on 25 surveys conducted in the study area, 90 species have been recorded, belonging to 16 families whith species that deserve protection as Cakile maritima and Ephedra distachya.

75 | Zohra et al.

J. Bio. & Env. Sci. 2015
Introduction

(Mostaganem city) west, between longitude 0 ° 08 '18

The coast is the interface between land and sea. It is a

"West and latitude 35 ° 47' 18" North. It consists of a

place of great biological and landscape diversity,

single homogeneous terrestrial entity as a coast dune.

subject to strong natural pressures (materialized by

The area of coastal dunes is limited: in the north by

erosion) and human pressures. Over the years,

the sea; in the east by the cliff and Hill marabout Sidi

urbanization has eroded nature, dunes, ponds and

Mansour; ; in the south by National Highway Oran,

forests.

net

Mostaganem till Macta bridge and by Macta river and

disturbance of coastal ecosystems and a significant

in the west by the mouth of this river (Simonneau,

degradation

1951).

Coastal
risk

overexploitation
of

ecological

generated
resources

and

deterioration of coastal landscapes. Marine erosion,

The

study

area

covers

a

surface

of

approximately 1 km2 so 3 km long and 0.3 km wide.

urbanization in all its forms, over-fishing and climate
change are the main causes.
Indeed, Two-thirds of the Algerian population is
currently living on the coastal strip which represents
only 4% of the national territory. Today, some 160
urban agglomerations, including 3 of the 4 major
cities are located in the coastal area. over 51% of
industrial units are situated on the coast and
particularly in the metropolitan area of Algiers, where
25% of industrial units in the country are located and

Fig. 1. Geo location Map of the study area.

much pressure is applied on agricultural land
structures which recorded significant losses generated

The area climate is semi-arid with temperate winter

by the urban and economic development (MADRD

and extreme temperature range of 30.6 ° C recorded

2007).

in August and a dry period of 6 months ranging from
May to October. In our regions, where summer

Marsat-El Hadjaj is a Mediterranean coast area with

drought is marked, spring (March to June) offers a

its specific ecological features and coveted space

favorable observation period because most of the

where...

Bibliography: VIDAL. 1998. Organisation des phytocénoses en
milieu insulaire méditerranéen perturbé
MADRD. 2007. Projet du Schéma Directeur Des
interrelations
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