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| Registros recuperados: 15 | |
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| Hadjadji, Imene; Frehi, Hocine; Ayada, Lembarek; Abadie, Eric; Collos, Yves. |
| Environmental conditions ultimately leading to blooms of the toxic dinoflagellate Alexandrium catenella/tamarense were investigated at two Mediterranean sites (Annaba Bay, Algeria and Thau lagoon, France). Three years were examined in details: 1992 (a pre-Alexandrium period), 2002 (a year with the first bloom in Annaba) and 2010 (a year with a major bloom in Annaba). Most conditions were similar, but ammonium concentrations were much higher in Annaba (up to 100 μM) than in Thau (up to 10 μM). First records of A. catenella/tamarense were in 1995 for Thau and 2002 for Annaba, and coincided with soluble reactive phosphorus (SRP) decreasing below a concentration of about 1 μM. No other environmental variable could be related to those blooms. Thus, it is likely... |
| Tipo: Text |
Palavras-chave: Alexandrium catenella/tamarense; Blooms; Algeria; France; Mediterranean. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00174/28574/26995.pdf |
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| Boudinar, A. S.; Chaoui, L.; Mahe, Kelig; Cachera, M.; Kara, M. H.. |
| Somatic morphology and otolith shape were used to discriminate four samples of Atherina boyeri from three different habitats: Mellah lagoon (n = 269), Annaba Gulf (144 punctuated and 194 unpunctuated individuals) and Ziama inlet (n = 147) in eastern Algeria. For each individual, somatic morphology was described with 13 metrics and eight meristic measurements, while the otolith contour shape of 452 individuals from the three habitats was analysed using Fourier analysis. Then, two discriminant analyses, one using the 13 metric measurements and the other using Fourier descriptors, were used in order to discriminate populations of A. boyeri. The results of the discriminant analyses based on the two methods were similar, and showed that this species could be... |
| Tipo: Text |
Palavras-chave: Sand smelt; Otoliths; Morphology; Mediterranean; Algeria. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00270/38079/36303.pdf |
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| Laïd,Y; Boutekdjiret,L; Oudjehane,R; Laraba-Djebari,F; Hellal,H; Guerinik,M; Griene,L; Alamir,B; Merad,R; Chippaux,JP. |
| Scorpion stings are a public health problem in the Maghreb region. In Algeria, epidemiological data were collected over the past twenty years by the Algerian health authorities. This study is an analysis of morbidity and mortality data collected from 2001 to 2010. Annual incidence and mortality due to scorpion envenoming were 152 ± 3.6 stings and 0.236 ± 0.041 deaths per 100,000 people (95% CI), respectively. The risk of being stung by a scorpion was dramatically higher in southern areas and central highlands due to environmental conditions. Incidence of envenoming was especially higher in the adult population, and among young males. In contrast, mortality was significantly higher among children under 15 years, particularly ages 1-4. Upper limbs were more... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scorpion; Stings; Envenoming; Deaths; Epidemiology; Management; Algeria. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992012000400008 |
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| Harchouche, K; Maurin, C; Quero, Jean-claude. |
| At the time of a survey of the biology of Lithognathus mormyrus and its feeding ecology and dynamies, in the region of Algiers and Annaba, preys ingested by this species were determined from stomach contents. Food was composed entirely of benthic organisms. It has been counted more than 45 species-preys distributed in 9 taxonomic classes. The quantitative analysis of these preys and the variation of the food regime according to a certain number of parameters were treated. The young individuals fed on small Tellinids bivalves and adults, on Crustaceans Amphipods, Cumaceans, Decapodes, Molluscs, sea urchins and Polychaetes. The feeding of this fish was rich and varied in preys species and little among them were preferential. The three main sources of food... |
| Tipo: Text |
Palavras-chave: Algeria; Bay of Algiers and Annaba; Stomach contents; Lithognathus mormyrus; Algérie; Baie d'Alger et d'Annaba; Contenus stomacaux; Lithognathus mormyrus. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-3689.pdf |
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| Dan, Gabriela; Sultan, Nabil; Cattaneo, Antonio; Deverchere, J; Yelles, K. |
| On 21st May 2003, a damaging earthquake of Mw: 6.9 struck the region of Boumerdès 40 km east of Algiers in northern Algeria. The seismic shocks had devastating effects in the offshore area between the cities of Algiers and Dellys, where numerous cable breaks were observed. The submarine area encompassing the 2003 Boumerdès epicenter (central Algerian margin) was recently investigated using geophysical and sampling tools. It has been observed that small-size slides and mass-transport deposits occur across this area. Thus, a detailed analysis was performed on 25 submarine slides identified in water depth from 500 m to 2700 m, by measuring different morphological parameters (i.e. surface, head-scarp height, slope in the source area and in adjacent... |
| Tipo: Text |
Palavras-chave: Triggering mechanism; Morphology; Mass transport deposit; Algeria. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/acte-6453.pdf |
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| Ramdane, Zouhir; Trilles, Jean-paul; Mahe, Kelig; Amara, Rachid. |
| A total of 664 Boops Boops (Linnaeus, 1758) and 823 Mullus barbatus barbatus Linnaeus, 1758 from the east coast of Algeria were examined to study their parasitofauna. We collected eleven parasitic species (two monogeneans, three copepods, five isopods and one Branchiura) from B. boops, and four parasitic species (two copepods and two isopods) from M. barbatus barbatus. Five species were reported for the first time in Algeria. The site of attachment on the host and the degree of specificity varied according to the parasite species while the infestation rate changed according to the month and the host size. The parasitism did not show a significant negative impact on the biological parameters of the fish host. |
| Tipo: Text |
Palavras-chave: Boops boops; Mullus barbatus barbatus; Algeria; Ectoparasites; Impact of parasitism. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00148/25901/23918.pdf |
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| Bachir,Meryem; Allem,Rachida; Tifrit,Abedelkarim; Medjekane,Meriem; Drici,Amine El-Mokhtar; Diaf,Mustafa; Douidi,Kara Turki. |
| Abstract The epidemiology of Helicobacter pylori resistance to antibiotics is poorly documented in Africa and especially in Algeria. The aim of our study was to determine the antibiotic resistance rates, as well as its possible relationship with VacA and CagA virulence markers of isolates from Algerian patients. One hundred and fifty one H. pylori isolate were obtained between 2012 and 2015 from 200 patients with upper abdominal pain. Antimicrobial susceptibility testing was performed for amoxicillin, clarithromycin, metronidazole, ciprofloxacin, rifampicin and tetracycline. Molecular identification of H. pylori and the detection of vacA and cagA genes were performed using specific primers. We found that H. pylori was present in 83.5% of collected... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Helicobacter pylori; Antibiotic resistance; Vaca; Caga; Algeria. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000300544 |
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| BENSAHA, Hocine. |
| Agricultural insurance is one of the important tools that help farmers gain access to appropriate financial services in support of agricultural production and to face some of the involved risks. The present article presents a detailed evaluation of the functioning system of the agricultural insurance system. Assessing the participation of the Algerian Caisse de Mutualité Agricole, in the current rate of agricultural development. This institution of agricultural mutuality, with its national fund and its regional mutuals, is likely to be affected by several changes or even to be surpassed by other companies competing on the insurance market. An analysis was conducted in insurance companies and farmers to probe the reality on the ground and identify... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural insurance; Participation; Development; Saharan regions; Algeria. |
| Ano: 2020 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5807 |
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| Registros recuperados: 15 | |
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