Browsing Environmental Science Center by Publisher "Elsevier"
Now showing items 1-20 of 126
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A 51 ka sedimentary sequence in a seamount basin, Eastern Arabian Sea: Records for paleoceanographic and paleoclimate conditions
( Elsevier , 2022 , Article)A 5.4 m thick sediment core at ∼ 517 m water depth from a seamount basin off the Goa coast in the Eastern Arabian Sea (EAS) is examined for the mineral magnetic, carbonate and organic carbon variability. The 51 ka BP dated ... -
Acutodesmus obliquus as a benchmark strain for evaluating methane production from microalgae: Influence of different storage and pretreatment methods on biogas yield
( Elsevier , 2015 , Article)Acutodesmus obliquus (SAG 276-1), a microalga with a resistant cell wall, was chosen as a benchmark strain for testing the effect of storage and pretreatment methods on methane yields during anaerobic digestion. A. obliquus ... -
Anthropogenic related variations in the epibiotic biodiversity and age structure of the “Pearl Oyster” Pinctada radiata within the eulittoral zone of Qatar
( Elsevier , 2016 , Article)Abstract Oyster aggregations provide critical habitat that contain diverse communities, with epibiota and oysters sensitive to environmental disturbance. The monitoring of oysters and associated organisms has become an ... -
Aquaculture sediments amended with biochar improved soil health and plant growth in a degraded soil
( Elsevier , 2023 , Article)Sustainable and safe management of aquaculture sediments is of great concern. Biochar (BC) and fishpond sediments (FPS) are rich in organic carbon and nutrients and thus can be used as soil amendments; however, it is not ... -
Are mangroves in arid environments isolated systems? Life-history and evidence of dietary contribution from inwelling in a mangrove-resident shrimp species
( Elsevier , 2013 , Article)The Arabian Gulf represents one of the more northerly extremes of mangrove distribution in the Indo-Pacific, and is populated only by Avicennia marina, due to its tolerance of high salinity and wide temperature extremes. ... -
Assessment of the environmental health of an ecologically sensitive, semi-enclosed, basin - A water quality modelling approach.
( Elsevier , 2018 , Article)Semi-enclosed basins are environmentally dynamic and some of the most anthropogenically affected components of the coastal realm. They can reflect various environmental impacts, thus qualifying as natural laboratories to ... -
Associated effects of storage and mechanical pre-treatments of microalgae biomass on biomethane yields in anaerobic digestion
( Elsevier , 2016 , Article)The pre-treatment of microalgae cell walls is known to be a key factor to enhance methane (CH4) yields during anaerobic digestion. This study investigated the combined effects of two different biomass storage methods and ... -
Association of spring phenological traits with phylogeny and adaptation to native climate in temperate plant species in Northeast China
( Elsevier , 2022 , Article)The effects of climate change on plant phenology have been widely recognized around the world. However, the effect of plant internal factors (such as phylogeny) on the variations in phenology among plant species remains ... -
Bacterial community structure and predicted function in the rhizosphere of wild and cultivated date palms: Effects of Fertilizers on Composition and Functionality
( Elsevier , 2023 , Article)This study investigated bacterial diversity in date palm rhizosphere and assessed the influence of different fertilizers on diversity using metagenomics. A total of 6356 Operational Taxonomic Units (OTUs) and 1164425 ... -
Baseline concentrations and distributions of Polycyclic Aromatic Hydrocarbons in surface sediments from the Qatar marine environment
( Elsevier , 2017 , Article)Coastal sediments in marine waters of Qatar have the potential of being contaminated by Polycyclic Aromatic Hydrocarbons (PAHs) due to extensive petroleum exploration and transportation activities within Qatar's ... -
Baseline concentrations of mercury species within sediments from Qatar's coastal marine zone
( Elsevier , 2019 , Article)Baseline concentration of total mercury (THg), organic extractable mercury and methylmercury (CH3Hg) concentrations in sediments from the northeastern, eastern and southeastern parts of the Arabian Gulf were assessed. ... -
Basic assessment of Portunus segnis (Forskål, 1775) – A baseline for stock management in the Western Arabian Gulf
( Elsevier , 2016 , Article)Portunus segnis (Forskål, 1775) is the representative species of the Portunus pelagicus (Linnaeus, 1758) complex described as inhabiting the Arabian Gulf. It represents one of the most important decapod resources within ... -
Benthic surveys of the historic pearl oyster beds of Qatar reveal a dramatic ecological change
( Elsevier , 2016 , Article)The study aimed to confirm the presence of historic oyster banks of Qatar and code the biotopes present. The research also collated historical records and scientific publications to create a timeline of fishery activity. ... -
The biological effects of chemical contaminants in the Arabian/Persian Gulf: A review
( 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 ... -
Biomass loss in village ecosystems in Western Himalaya due to wild monkey interactions: A case study
( Elsevier , 2021 , Article)Conservation faces the challenge of reconciling human activities with the simultaneous presence of wildlife in cultivated landscapes. In a study carried out in two villages of Pauri Garhwal, Western Himalaya, an attempt ... -
BTEX, nitrogen oxides, ammonia and ozone concentrations at traffic influenced and background urban sites in an arid environment
( Elsevier , 2019 , Article)Spatial distribution of key air pollutants were studied in Doha, Qatar, over the course of two monitoring campaigns in early spring, 2016. Time-weighted averages of BTEX components (benzene, toluene, ethyl-benzene, ... -
Capillary pressure correction of cuttings
( Elsevier , 2022 , Article)The accurate characterization of capillary pressure is essential in determining multiphase flow behavior in subsurface conditions. It is also essential in quantifying reservoir rock quality, reservoir fluid saturations, ... -
Characteristics and renewal of zooplankton communities under extreme environmental stresses in the oligotrophic hypersaline Arabian Gulf
( Elsevier , 2022 , Article)Impacts of the exceptionally high temperature and salinity on species composition, abundance, biomass and diversity of zooplankton communities were examined in the central Arabian (Persian) Gulf in late winter and summer ... -
Characteristics and sources of anthropogenic and biogenic hydrocarbons in sediments from the coast of Qatar.
( Elsevier , 2017 , Article)Surface sediment samples from the coastal zone of Qatar were collected and analyzed to determine the characteristics, and sources of anthropogenic and biogenic hydrocarbons. The main compounds in these surface sediments ... -
Chlorophyll-a concentrations in the Arabian Gulf waters of arid region: A case study from the northern coast of Qatar
( Elsevier , 2022 , Article)Remote sensing of spectrally active Chlorophyll-a (Chl-a) in the gulf water of an arid region is important to understand the spatial and temporal variations of phytoplankton and biomass in the water. This study characterizes ...