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  1. TitleBiostratigraphy of the late Campanian - Maastrichtian of the Duwi Basin, Red Sea, Egypt
    Author infoOrabi H. Orabi ... [et al.]
    Author Orabi Orabi H. (25%)
    Co-authors Eldosouky Ahmed M. (15%)
    Abdelrahman Kamal (10%)
    El Gammal Reda M. (10%)
    Nallamuthu Malarkodi (10%)
    Fnais Mohammed S. (5%)
    Andráš Peter 1953- (25%) UMBFP04 - Katedra životného prostredia
    Source document Open Geosciences. Vol. 15, no. 1 (2023), pp. 1-26. - Warsaw : De Gruyter Poland, 2023
    Keywords foraminifery   biostratigrafia  
    Headings Geogr. Egypt
    Form. Descr.články - journal articles
    LanguageEnglish
    CountryPoland
    AnnotationDuring the Late Campanian, sea-level fluctuation occurred in the form of two chert bands and the topmost conglomeratic phosphate beds (CF8a zone). A great transgression event occurred associated with the global warming (CF8b zone) trend indicated by large double-keeled foraminifera as Globotruncana aegyptiaca Nakkady of oligotrophic conditions. Through the event of CF6/CF5 zones, a gradual increase in the relative abundance of Gublerina rajagopalani Govindan and Planoheterohelix planata (Cushman) and other heterohelicids have been shown to tolerate and thrive in a wide range of environmental conditions as in high-stress environments. Sea-level fall at the CF6 zone and the overlying CF5 boundary marked a warming climate for the Middle Maastrichtian Event. In the latest CF4 records, the beginning of the decrease in planktic/benthic ratio, globotruncanids, rugoglobigerinids, and heterohelicids indicating a fall in sea level coincided with the CF4/CF3 and the development of dark grey shales in a regressive regime. The observed low abundance of planktic specimens may be due to the presence of pyrite with black shale interval suggesting low oxygen condition. The latest zones CF3, CF2, and CF1 are generally characterized by heterohelicids blooms specially Planoheterohelix globulosa (Ehrenberg), and a gradual decrease in diversity associated with the warming phase before the K/Pg boundary event, implying high biotic stress to even absent of Guembelitria cretacea species through CF3–CF1 zones. Pseudotextularia elegans (Rzehak) occurs in the zones CF4 and CF2 warming of phases 1 and 2 of Deccan Trap Volcanic. The absence of P. elegans (Rzehak) in the zone (CF3) is postulated due to a tectonic cause (maximum cooling of Deccan Trap Volcanic) whereas its absence in the zone (CF1) was due to regression of phase 2.
    URLLink na plný text
    Public work category ADC
    No. of Archival Copy52900
    Catal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Databasexpca - PUBLIKAČNÁ ČINNOSŤ
    ReferencesPERIODIKÁ-Súborný záznam periodika
  2. TitlePotential biomonitoring of the environmental contamination using snails as sentinel organism: A case study from the Manzala Lagoon, Egypt
    Author infoSaleh Qaysi ... [et al.]
    Author Qaysi Saleh (30%)
    Co-authors Orabi Orabi H. (25%)
    Abdelrahman Kamal (15%)
    Eldosouky Ahmed M. (15%)
    Andráš Peter 1953- (15%) UMBFP04 - Katedra životného prostredia
    Source document Journal of King Saud University - Science. Vol. 34, no. 8 (2022), pp. 1-11. - Amsterdam : Elsevier B.V., 2022
    Keywords kontaminácia životného prostredia - environmental contamination   biomonitoring  
    Form. Descr.články - journal articles
    LanguageEnglish
    CountryNetherlands
    AnnotationFor the first time, historical and recent records on fascioliasis in Egypt reveal the results of sympatric and allopatric fluke/snail interactions in the Manzala Lagoon area by exploring the susceptibility of the species Pseudosuccinea columella after exposure to the Fasciola hepatica isolates from Egypt. Many factors influence trace metal accumulation in Pseudosuccinea columella, including temperature and salinity. Meanwhile, other factors are important in decreasing the bioaccumulation of heavy metals as low pH, low temperature, and high organic content of the substrate. It is indicated, from this study, that the Fe and Cu contamination can be detected in Pseudosuccinea columella species. The abundance of these snails varied all over the seasons where the minimum value was recorded in summer while reaching the maximum in autumn. Moreover, the abundance increased with increasing rainfall and humidity during the winter season.
    URLLink na plný text
    Public work category ADM
    No. of Archival Copy52344
    Repercussion category EL-KHAYAT, Hanaa M. M. - GABER, Hanan S. - HELAL, Noha S. - ZAYED, Khaled M. - FLEFEL, Hassan E. - MOHAMMED, Wafaa A. - SAYED, Sara S. M. Comparative study on Lake Manzala in Egypt after and before development and purifications : ecosystem and biomarkers; biochemical, histopathological and immunohistochemical. In Environmental pollution. ISSN 0269-7491, 2023, vol. 339, art. no. 122741, pp. 1-13.
    Catal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Databasexpca - PUBLIKAČNÁ ČINNOSŤ
    ReferencesPERIODIKÁ-Súborný záznam periodika


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