Browsing by Author "Amel Bouakkaz"

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    Breeding behaviour of the Kentish plover (Charadrius alexandrinus) in a salt marsh from the Eastern High Plateaux, northeast Algeria
    (Journal of King Saud University – Science, 2016-06-02) Amel Bouakkaz
    Abstract The reproductive biology and nesting site selection of the Kentish plover, Charadrius alexandrinus, were investigated in a semi-arid salt marsh from the Eastern High Plateaux, northeast Algeria. The present study describes for the first time the breeding behaviour of this plover in the Eastern High Plateaux. On the natural ecosystem of Sebkhet Ouled M’Barek, egg-laying occurred from mid-April to late May, with peak in the last week of April. Mean clutch size was 2.71 ± 0.58 (n= 45), and incubation period was 27.0± 0.9 days. Hatching success amounted to 69.6%± 6.4 (45 clutches) and an average of 2.0± 0.2 chicks hatched per nest. In this study we observed that incubating plovers usually nested near water edge and very close to a heterospecific nest. Three aspects make this population distinct from most other Kentish plover populations studied to date. It is characterised by a late onset of egg-laying, short egg-laying period and high rate of breeding success. Nevertheless, the present study shows that the mean clutch size, egg volume and incubation period were comparable to those known for other Mediterranean populations. Anthropogenic pressures, habitat loss as well as lack of management plans are major threats of this population. 2016 The Authors. Production and hosting by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-NDlicense (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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    Microbiological quality of water in an urban wetland: Lake Echatt (wilaya of El-Oued, Algerian Sahara)
    (Ukrainian Journal of Ecology, 2022-07-20) Amel Bouakkaz
    Regular monitoring of microbial density of Lake Echatt (Wilaya of El-Oued, Algerian Sahara) during the period from September 2019 to August 2020 revealed, on the one hand, a very abundant increase in the number (total germs, total coliforms, and fecal streptococci) during the hottest months (May, June, July, and August), probably due to the rise in temperatures reaching the optimal conditions for the growth of microorganisms. On the other hand, this water is very polluted presenting a very high fecal contamination index following direct discharges and without prior treatment of wastewater (rich in nitrates) from neighboring dwellings, mainly in site 1, which overloads this ecosystem through water renewal. At the level of these waters proliferate pathogenic bacteria (Salmonella, Shigella, Pseudomonas, and Staphylococcus) which can cause serious illnesses.
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    PHYSICO-CHEMICAL AND BIOLOGICAL CHARACTERIZATION OF WELLS WATER QUALITY IN BERRICHE REGION (NORTH-EAST ALGERIA)
    (EM International, 2021-06-09) Amel Bouakkaz
    This study concerns the aquatic fauna of wells in a semi-arid region of north-eastern Algeria. Five wells were selected and seasonal sampling of the aquatic fauna and water of these wells was carried out from September 2017 to June 2018, covering periods of high and low water. Two types of traps were used: the phreatobiological net and baited nets. The physico-chemical analyses of the wells’ water showed that the majority of groundwater in this region is of poor quality, undersaturated in oxygen and highly mineralized. The fauna of the wells is composed of 21 taxa and 4562 individuals, dominated by Insects 56% followed by Crustaceans 25%. Only one species was found as a stygobian species Pseudoniphargus sp.