A literature review of Algerian salt lakes: values, threats and implications

Demnati, Fatma; Samraoui, Boudjéma; Allache, Farid; Sandoz, Alain; Ernoul, Lisa

doi:10.1007/s12665-017-6443-x

Cited by 17 publications

(10 citation statements)

References 42 publications

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“…Measurement of the physico-chemical parameters of the samples: pH, temperature and electrical conductivity are measured in situ. The pH in the aquatic environment is essentially a function of the chemical composition of the aqueous solution and the activity of the organisms [13]. Electrical conductivity makes it possible to assess the quantity of salts dissolved in water [14].…”

Section: Measurement Of Physicochemical Parameters Of Samplesmentioning

confidence: 99%

Characterization of Some Bacteria in the Waters of Chott of Aïn El-Beida in the South of Algeria

Aloui¹,

Mehalli²

2022

OJE

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Hypersaline environments, represented by the chotts, the Sebkhas and the saline soils, etc., are a typical example of extreme environment harboring a particularly interesting microbial flara. In this context, the aim of this word is to try to make a characterization of the bacteria in the waters of the chott of Aïn El-Beida in the region of Ouargla (South Algeria). The water samples taken are characterized by a pH between 6.6 and 8.39, the water is neutral to alkaline water, with a temperature between 8˚C to 10˚C, and an electrical conductivity between 2.4 to 6 ds/m reflecting extremely salty water. These characteristics enabled us to select a microflora specific to this environment. The microbiological analsis of these samples revealed fifteen isolated strains, including the following species: Escherichia coli 2, Flavobacterium meningosepticum, Shigella sp, Aeromonas salmonicida, with a bacterial density that varied between 0.27 × 104 to 2.236 × 104, which may explain why the water in this ecosystem is rich in specific important microflora. The results of NaCl tolerance have revealed to us that certain isolated strains tolerate a NaCl concentration up to 35%, these are euryhaline bacteria. With regard to the antagonist test, the strains (S8) have a strong antifungal capacity, which can be explained by the fact that latter has a significant competitive power against Aspergillus carbonarius and Penicillium sp. The microbial exploration of this specific extreme ecosystem proved successful, as we were able to detect significant specific microbial diversity.

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Section: Measurement Of Physicochemical Parameters Of Samplesmentioning

confidence: 99%

Characterization of Some Bacteria in the Waters of Chott of Aïn El-Beida in the South of Algeria

Aloui¹,

Mehalli²

2022

OJE

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“…that threaten the known habitats of breeding gulls and terns (Nisbet, 2000;Chokri et al, 2011). In addition, the vast Algerian salt lakes are also increasingly threatened by numerous development projects (dams and hillside catchment reservoirs, new roads and housing estates) which imperil the function and sustainability of these ecosystems (Béchet & Samraoui, 2010;Demnati et al, 2017). Fortunately, solutions do exist as alongside coastal management, man-made habitats may also provide useful alternative breeding sites that may compensate for the rapid loss of natural habitats (Burgess & Hirons, 1992;Catry et al, 2004;Pakanen et al, 2014).…”

Section: Conservationmentioning

confidence: 99%

Distribution and breeding of the slender-billed gull Chroicocephalus genei, common tern Sterna hirundo and little tern Sternula albifrons in Algeria

Baaloudj¹,

Bouzid²,

Nedjah³

et al. 2018

revec

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Distribution et nidification du Goéland railleur Chroicocephalus genei, de la Sterne pierregarin Sterna hirundo et de la Sterne naine Sternula albifrons en Algérie.-La connaissance de l'écologie de la reproduction des sternes, mouettes et goélands au Maghreb présente de sérieuses lacunes. Dans cet article, nous présentons des données sur la répartition et l'écologie de la reproduction de trois espèces, le Goéland railleur Chroicocephalus genei, la Sterne naine Sternula albifrons et la Sterne pierregarin Sterna hirundo, en Algérie. Pour le Goéland railleur, la plus ancienne colonie connue et de nouveaux sites de reproduction à travers le pays sont documentés. À l'inverse de cette répartition étendue, la Sterne naine et la Sterne pierregarin sont confinées chacune à un seul site de reproduction. Des réflexions sur la sélection des sites de reproduction, la compétition interspécifique et les paramètres de reproduction sont présentées alors que les facteurs affectant négativement la reproduction sont discutés.

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“…The impact of overgrazing is reflected by the rarefaction and even disappearance of some useful plant species with high forage value, the abundance and even dominance of some less palatable species, and the development of unpalatable species [Ghiloufi et al, 2015]. However, the area of grazing rangeland has decreased at the expense of marginal crops [Demnati et al, 2017].…”

Section: Introductionmentioning

confidence: 99%

Botanical Diversity of Arid Steppe in South East of Algeria (Biskra)

Belhadj¹,

Allache²,

Boulghobra³

et al. 2023

J. Ecol. Eng.

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In the light of climate change, it is important to acquire the information on the diversity of flora in order to ensure rational use of steppe rangelands. The present study aimed at diagnosing the botanical and the taxonomic diversity of the arid steppe plant communities in South East of Algeria. A total of 216 phytoecological sampling, were collected in three sites and one sample for each month during 2017 and 2018. The vegetation was analyzed using various species diversity parameters (abundance, species richness, life forms, alpha and beta diversity indices and disturbance index). Results show that 985 plant individuals were classified into 27 species, 27 genera and 14 families, with predominance of Chenopodiaceae and Asteraceae in the arid steppe of El-Haouch, and remarkable dominance of Chamaephytic and Therophytic plants in different phytoecological groups. The state of vegetation degradation in a susceptible environment on Algeria's rangeland in the South East which is confirmed by the low values of Shannon, Jaccard indices and the values of disturbance index ranged between 50 and 85.71%. The alpha diversity parameters of the different phytoecological groups have low values, which reflect a more fragile homogeneous ecosystem, unfavorable life conditions and the absence of certain species of high pastoral value.

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A literature review of Algerian salt lakes: values, threats and implications

Cited by 17 publications

References 42 publications

Characterization of Some Bacteria in the Waters of Chott of Aïn El-Beida in the South of Algeria

Characterization of Some Bacteria in the Waters of Chott of Aïn El-Beida in the South of Algeria

Distribution and breeding of the slender-billed gull Chroicocephalus genei, common tern Sterna hirundo and little tern Sternula albifrons in Algeria

Botanical Diversity of Arid Steppe in South East of Algeria (Biskra)

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A literature review of Algerian salt lakes: values, threats and implications

Cited by 17 publications

References 42 publications

Characterization of Some Bacteria in the Waters of Chott of A&#239;n El-Beida in the South of Algeria

Characterization of Some Bacteria in the Waters of Chott of A&#239;n El-Beida in the South of Algeria

Distribution and breeding of the slender-billed gull Chroicocephalus genei, common tern Sterna hirundo and little tern Sternula albifrons in Algeria

Botanical Diversity of Arid Steppe in South East of Algeria (Biskra)

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Characterization of Some Bacteria in the Waters of Chott of Aïn El-Beida in the South of Algeria

Characterization of Some Bacteria in the Waters of Chott of Aïn El-Beida in the South of Algeria