Abstract Sediments are vital components of aquatic ecosystems, which trap and store various essential elements as well harmful polluting substances. This is why sediment quality assessment great importance in measuring the quality, or pollution, water bodies. In this study, levels, ecological risk, toxicity indices 17 heavy metals (HMs) were evaluated sediments two lakes: Upper Wadi El-Rayan La...

The Arab peninsula suffers from intense wadi erosion, which is been expressed by a dense net of wadis that are correlated overland flows to their surrounded landforms (e.g. loess slopes and rocky grounds). Therefore, the study hypothesized reclamation will affect all these landforms. following objectives were defined: determining influence check damming, savanna tree plantation, grazing on ‘Abo...

Abstract. Lake Mareotis (modern Mariut), located near the Mediterranean coast of Egypt west Nile Delta, is bordered by ancient sites dating from New Kingdom (end 2nd millennium BCE) to Medieval period (8th century CE), most famous one being Alexandria. In its western part (wadi several are equipped with harbour structures, but they also have structures contemporaneous them that not compatible l...

Considered as the main stream of hydrographic network Mactaa’s basin, in west highlands Algeria, both wadis, Mekerra and Saïda, are affected by pollution which is generated anthropogenic activities. Makara Saïda wadis cross urban areas Sidi-Bel-Abbes respectively, constitute a real problem human safety. In order to identify state on these samples have been collected during three periods time (J...

Unpublished materials related to several open–type localities investigated by participants of the Nubian Archaeological Expedition USSR Academy Sciences during 1962-1963 season in Wadi al-Allaqi area were found Palaeolithic Department Institute for History Material Culture Russian Sciences. Technical and typological analysis stone artefacts allows us attribute collections under discussion a lon...

Light microscopical description is presented for a new myxozoan species, Henneguya ghaffari, which infects the Nile perch Lates niloticus (Linnaeus, 1758) in Lake Wadi El-Raiyan in Egypt. The spore is characterized by a triangular thickening at the base of the caudal processes. The relatively long caudal processes run adherent to each other for two-thirds of their length, then bifurcate to very...

A field survey of wild medicinal and industrial plant species in saline habitats in the area extended along 75 km in the Jordan Valley was carried out during 2010. Results showed occurrence of 263 species of 59 62 plant families in the region. The highest numbers were belonging to Compositae (48 species), Gramineae (18 species) and Chenopodiaceae (15 species). Species were different in densitie...