Browsing Marine Science Cluster by Title
Now showing items 58-77 of 215
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The effect of density in larval rearing of the pullet carpet shell Venerupis corrugata (Gmelin, 1791) in a recirculating aquaculture system
( John Wiley & Sons Ltd , 2014 , Article)The pullet carpet shell Venerupis corrugata is an economically valuable species in several European countries, however, nowadays stocks are under high fishing pressure. Hatchery production of juveniles for release is a ... -
Effect of Plant Growth Regulators on Callus Induction from Leaf and Petiole explants of Hummeid (Rumex Vesicarius)
( Qatar University Press , 2021 , Poster)Advancement in plant cell culture technology has permitted the increasing interest in harvesting plant metabolites from cell cultures. This technique is based on in vitro propagation of plant callus which contains many ... -
Effects of bottom substratum on survival and growth of early juveniles of blue swimming crab, Portunus pelagicus (Linnaeus, 1758) in captivity
( Triveni Enterprises , 2018 , Article)Aim : Cannibalism remains a limiting factor during the nursery culture of crabs. This study was undertaken to improvetherearingtechniquesbyinvestigating theimpactofbottom substratum on crablet survival and growth. The ... -
Efficient shoot regeneration of medicinal plant Haplophyllum tuberculatum by direct and indirect organogenesis and genetic fidelity assessment using Inter Simple Sequence Repeats markers
( Frontiers in Plant Science , 2022 , Article)In vitro plant cell and tissue cultures are potent tools to propagating germplasm resources in conserving and managing plant genetic resources. A reliable micropropagation protocol was developed for efficient callus ... -
Electrically conductive fibers fabrication and characterization via in-situ polymerization of aniline for the protection against EMI and thermal imaging signals
( Elsevier , 2023 , Article)Polyester fibers (PEF) were successfully coated with Polyaniline (PANI) via in situ polymerization to make electrically conductive fibers (ECF). X-ray diffraction (XRD) analysis confirms the synthesis and scanning electron ... -
Elemental distributions in the marine sediments off Doha, Qatar: role of urbanisation and coastal dynamics
( Springer Science and Business Media Deutschland GmbH , 2024 , Article)This research investigates the present status and decadal variability of element distributions in the marine sediments off Doha, on the east coast of Qatar. Twenty elements were considered from 11 sediment sampling stations ... -
Enhanced electromagnetic interference shielding using Nanosilver-Decorated Graphene/Poly(vinyl chloride) nanocomposite films
( Elsevier , 2024 , Article)Silver nanoparticles (AgNPs) were prepared by chemical reduction and grafted onto thermally reduced graphene oxide (TRGO) sheets. PVC-based nanocomposite films with various Ag/TRGO concentrations were synthesized via ... -
Enhancing eggplant (Solanum melongena L.) yield and water use efficiency through optimized irrigation and nitrogen practices in open field conditions
( Elsevier , 2024 , Article)This study evaluated the interactive effects of deficit irrigation and nitrogen application on eggplant growth and yield under water scarcity in Northern Qatar (2022–2023). Two irrigation regimes were tested: full irrigation ... -
Enhancing subsea asset performance: Investigating the biomimetic functionality of the Mushroom Reef design in hydrodynamics, stability, and sedimentation
( Elsevier , 2023 , Article)In this study, laboratory and in situ experiments were performed to assess the stability of the Mushroom Forest Artificial Reef (MFAR) against the hydrodynamic forces of waves and currents and its functionality to avoid ... -
Environmental contamination in mangrove crustaceans inhabiting Qatari waters
( Hamad bin Khalifa University Press (HBKU Press) , 2015 , Conference)The increasing level of pollutants in the marine environment is a major concern in all countries, in particular where the main diet is seafood. The major goal of this project was to assess the level of pollution and their ... -
Environmental Drivers of Habitat Use by Hawksbill Turtles (Eretmochelys imbricata) in the Arabian Gulf (Qatar)
( Frontiers Media SA , 2020 , Article)Understanding the environmental drivers of movement patterns are critical to the protection, management and recovery of endangered species. The Arabian Gulf is considered to be the hottest marine system in the world and ... -
Epibenthic assemblages on vertical artificial substrates: recruitment and succession patterns in offshore Qatari waters
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference)Artificial structures get introduced into the marine environment by accident (e.g., shipwrecks) or intentionally, for logistical (i.e., coastal protection), industrial (i.e., oil exploitation) or biological habitat enhancement ... -
An Equatorial Pacific rain event: influence on the distribution of iron and hydrogen peroxide in surface waters
( Elsevier , 2001 , Article)The wet deposition of iron and peroxides was monitored during an intense rain squall in the equatorial Pacific Ocean. Iron and hydrogen peroxide were determined at sea using adsorptive cathodic stripping voltammetry (ACSV) ... -
Ervilia castanea (Mollusca, Bivalvia) populations adversely affected at CO2 seeps in the North Atlantic
( Elsevier B.V. , 2021 , Article)Sites with naturally high CO2 conditions provide unique opportunities to forecast the vulnerability of coastal ecosystems to ocean acidification, by studying the biological responses and potential adaptations to this ... -
Evaluation of Nitrogen and Water Management Strategies to Optimize Yield in Open Field Cucumber (Cucumis sativus L.) Production
( Multidisciplinary Digital Publishing Institute (MDPI) , 2023 , Article)Countries in arid climates, such as Qatar, require efficient water-saving strategies and nitrogen treatment for vegetable production. Vegetable importation constituted approximately USD 352 million of Qatar’s 2019 GDP; ... -
Evaluation of pesticide residues of organochlorine in vegetables and fruits in Qatar: statistical analysis
( Springer Verlag , 2016 , Article)The study aimed to examine the residues of organochlorines pesticides (OCPs) in vegetables and fruits in Qatar. A total of 127 samples was studied. Ninety percent of the imported samples recorded residues above the maximum ... -
Evaluation Of The Sensitivity Of Qatari Marine Microalgae Synechococcus Sp, To Three Reference Toxicants
( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference)Background Marine phytoplankton form the basis of the marine food chain and are essential for the normal functioning of ecosystems. Any disturbance to this component, due to the release and accumulation of toxic compounds ... -
Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf)
( Elsevier , 2022 , Article)Dissolved inorganic carbon (DIC) and total alkalinity (TA) were sampled in December 2018 and May 2019 in the Exclusive Economic Zone (EEZ) of Qatar in the Arabian Gulf. pCO2, pH and CO32− were calculated from DIC and TA. ... -
Extending the southern range of four shrimps (Crustacea: Decapoda: Stenopodidae, Hippolytidae and Alpheidae) in southwestern Atlantic (27oS) and confirming the presence of Mediterranean Stenopus spinosus Risso, 1827 in Brazil
( Zootaxa , 2015 , Article)In subtidal zones, certain shrimp species with cryptic behaviour represent a gap in the biodiversity description in many places in the world. This study extends the southern limit of Stenopus hispidus (Oliver, 1811), Alpheus ... -
Extreme value analysis of wave climate around Farasan Islands, southern Red Sea
( Elsevier , 2020 , Article)The study investigates extreme value analysis of wave climate around the Farasan islands’ protected coastal zone in the southern Red Sea. It provides an overall idea of the extreme wave conditions in the southern Red Sea, ...
