تصفح حسب المؤلف "Leitão, Alexandra"
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The benthic sea-silk-thread displacement of a sessile bivalve, Pinctada imbricata radiata (Leach, 1819) in the Arabian-Persian Gulf
Giraldes, Bruno Welter; Leitão, Alexandra; Smyth, David ( Public Library of Science , 2019 , Article)A number of molluscs within the Class Bivalvia are defined by their ability to secrete fine silk like threads known as byssus which are used to anchor themselves to solid substrates. With relatively few exceptions the ... -
The biological effects of chemical contaminants in the Arabian/Persian Gulf: A review
Khatir, Zenaba; Leitão, Alexandra; Lyons, Brett P. ( Elsevier , 2020 , Article)© 2019 Elsevier B.V. The Arabian Gulf is a shallow sea naturally exposed to extreme conditions of temperature and salinity due to its location, semi-enclosed nature, bathymetry and restricted circulation. Compared to open ... -
Diplomacy for the world's hottest sea
Al-Mudaffar Fawzi, Nadia; Fieseler, Clare M.; Helmuth, Brian; Leitão, Alexandra; Al-Ainsi, Mehsin; Al Mukaimi, Mohammad; Al-Saidi, Mohammad; Al Senafi, Fahad; Bejarano, Ivonne; Ben-Hamadou, Radhouan; D'Addario, Josh; Mohamed, Ahmad Mujthaba Dheen; Giraldes, Bruno W.; Glowka, Lyle; Johnson, Maggie D.; Lyons, Brett P.; Mateos-Molina, Daniel; Marshall, Christopher D.; Mohammed, Sayeed; Range, Pedro; Shokri, Mohammad Reza; Wong, John M.K.; Pyenson, Nicholas D.... more authors ... less authors ( American Association for the Advancement of Science , 2022 , Article)Countries that border the Persian or Arabian Gulf [hereafter, “Gulf ”] are adopting ambitious global commitments to protect their marine environments. The United Arab Emirates (UAE) has committed to protecting 30% of its ... -
Expanding ocean protection and peace: a window for science diplomacy in the Gulf.
Fieseler, Clare M; Al-Mudaffar Fawzi, Nadia; Helmuth, Brian; Leitão, Alexandra; Al Ainsi, Mehsin; Al Mukaimi, Mohammad; Al-Saidi, Mohammad; Al Senafi, Fahad; Bejarano, Ivonne; Ben-Hamadou, Radhouan; D'Addario, Josh; Mujthaba Dheen Mohamed, Ahmad; Giraldes, Bruno W; Glowka, Lyle; Johnson, Maggie D; Lyons, Brett P; Mateos-Molina, Daniel; Marshall, Christopher D; Mohammed, Sayeed; Range, Pedro; Reza Shokri, Mohammad; Wong, John M K; Pyenson, Nicholas D... more authors ... less authors ( Royal Society , 2023 , Article)The ecological state of the Persian or Arabian Gulf (hereafter 'Gulf') is in sharp decline. Calls for comprehensive ecosystem-based management approaches and transboundary conservation have gone largely unanswered, despite ... -
First genotoxicity assessment of marine environment in Qatar using the local Pearl oyster Pinctada radiata
Leitão, Alexandra; Al-Shaikh, Ismail; Hassan, Hassan; Ben Hamadou, Radhouan; Bach, Steffen ( Elsevier , 2017 , Article)The Arabian Gulf countries’ marine environment has been subjected to increasing industrial development and anthropogenic pressure, leading to the growing introduction of contaminants into the marine environment, with a ... -
Is it forever? Genotoxicological impact of marine contaminants on Arabian/Persian Gulf bivalves: An experimental approach
Khatir, Zenaba; Range, Pedro; Malik, Mahak; Al-Naimi, Hajer; Ben Hamadou, Radhouane; Leitão, Alexandra... more authors ... less authors ( Elsevier , 2020 , Article)© 2020 Elsevier B.V. A novel approach of combining manipulative field experiments and cytogenetic endpoints was used to assess the genotoxic impact of chemical contamination on a local model bivalve species, the pearl ... -
Methylmercury, Trace Metals, Organotins and Their Effects on the Qatari Mangrove Shrimp, Palaemon khori
Hassan, Hassan; Benvenuto, Chiara; Al-Maslamani, Ibrahim; Chatting, Mark; Mondal, Debapriya; Leitão, Alexandra... more authors ... less authors ( MDPI , 2022 , Article)The Qatari mangroves of Al-Khor are being increasingly exposed to a wide variety of anthropogenic pollutants due to land reclamation and urban expansion. In this study, we evaluated the lethal and genotoxic effects of ... -
De novo transcriptome assembly of the Qatari pearl oyster Pinctada imbricata radiata
Bean, Tim P.; Khatir, Zenaba; Lyons, Brett P.; van Aerle, Ronny; Minardi, Diana; Bignell, John P.; Smyth, David; Giraldes, Bruno Welter; Leitão, Alexandra... more authors ... less authors ( Elsevier , 2020 , Article)© 2019 The pearl oyster Pinctada imbricata radiata is an iconic species in Qatar, representing an integral part of the nation's cultural heritage and one of the main economic foundations upon which the nation developed. ... -
Review of the large branchiopod crustacean fauna of Qatar (Anostraca, Notostraca, Spinicaudata) and adjacent countries
Rogers, D. Christopher; Bary, Ekhlas M.M.Abdel; Alatalo, Juha M.; Leitão, Alexandra ( Taylor and Francis , 2022 , Article)The large branchiopod crustaceans (Anostraca, Notostraca, and Spinicaudata) of Qatar have only been examined recently. Although 15 nominal species have been reported for the Arabian Peninsula, there is confusion surrounding ... -
Two new sponge species (Demospongiae: Chalinidae and Suberitidae) isolated from hyperarid mangroves of Qatar with notes on their potential antibacterial bioactivity.
Giraldes, Bruno Welter; Goodwin, Claire; Al-Fardi, Noora A A; Engmann, Amanda; Leitão, Alexandra; Ahmed, Asma A; Ahmed, Kamelia O; Abdulkader, Hadil A; Al-Korbi, Halah A; Al Easa, Hala Sultan Saif; Ahmed Eltai, Nahla O; Hanifi-Moghaddam, Pejman... more authors ... less authors ( Public Library of Science , 2020 , Article)This study presents the taxonomic description of two new sponge species that are intimately associated with the hyperarid mangrove ecosystem of Qatar. The study includes a preliminary evaluation of the sponges' potential ...