Browsing Environmental Science Center by Publication Date
Now showing items 21-40 of 388
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Short-term behavioural responses to thermal stress by hawksbill turtles in the Arabian region
( Elsevier , 2014 , Article)We present a previously unrecorded short-term behavioural response by hawksbill sea turtles to elevated sea surface temperatures in the Persian/Arabian Gulf. Surface waters typically exceed 30°C for sustained periods during ... -
Identification of Important Sea Turtle Areas (ITAs) for hawksbill turtles in the Arabian Region
( Elsevier , 2014 , Article)We present the first data on hawksbill turtle post-nesting migrations and behaviour in the Arabian region. Tracks from 90 post-nesting turtles (65 in the Gulf and 25 from Oman) revealed that hawksbills in the Arabian region ... -
Insights into molecular features of venerupis decussata oocytes: A microarray-based study
( Public Library of Science , 2014 , Article)The production of Venerupis decussata relies on wild seed collection, which has been recently compromised due to recruitment failure and severe mortalities. To address this issue and provide an alternative source of seed, ... -
Marine collection in Qatar - basis for biodiversity management
( Hamad bin Khalifa University Press (HBKU Press) , 2015 , Conference Paper)Biological Collections, which deal directly with identifying and documenting biodiversity, have a major role in assisting biodiversity management. They form the basis for research, documenting flora and fauna and creating ... -
Geochemical composition of dust from Qatar peninsula
( Hamad bin Khalifa University Press (HBKU Press) , 2015 , Conference Paper)Atmospheric dust samples have been collected from different areas in Qatar and analyzed for major and trace element composition. This region of the Arabian Gulf represents an area largely affected by dust from natural and ... -
Environmental contamination in mangrove crustaceans inhabiting Qatari waters
( Hamad bin Khalifa University Press (HBKU Press) , 2015 , Conference Paper)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 ... -
Investigating the biodiversity and current status of the historically renowned oyster beds of Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2015 , Conference Paper)The "Pearl Oyster" Pinctada radiata has long been associated with the nation of Qatar. Historically pearl oysters were harvested in huge quantities in the Arabian Gulf with Qatari pearls making up a large percentage of the ... -
Contaminant metals in costal marine sediment along the Doha Bay, Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2015 , Conference Paper)Heavy metals pollution in marine environments has become a worldwide problem with the fast industrial development in the east coastal region of Qatar, especially in the Doha bay area. Heavy metals are expected to be presented ... -
Observations of hydrographic properties, dissolved oxygen (DO) and chlorophyll-A (Chl-a) (phytoplankton biomass) within the exclusive economic zone (EEZ) of Qatar (central Arabian Gulf)
( Hamad bin Khalifa University Press (HBKU Press) , 2015 , Conference Paper)In situ observations of physical, chemical, and biological parameters of the Qatari water column were conducted to understand the temporal (seasonal) and spatial (regional) variability in the vertical and horizontal ... -
Population structure of marine turtles in coastal waters of Qatar
( Inter-Research Science Publishing , 2015 , Article)Knowledge of the interrelationships between habitats and life-stage development in marine turtles requires an understanding of recruitment, size and age at maturity, sex ratios, growth and sexual development rates, ... -
Decapod assemblages in subtidal and intertidal zones—Importance of scuba diving as a survey technique in tropical reefs, Brazil
( Elsevier , 2015 , Article)Decapods play a crucial role within the reef ecosystem and the development of scuba diving as a survey tool has allowed researchers the opportunity to study the decapod–reef relationship more comprehensively. The present ... -
Radioactivity levels in the marine environment along the Exclusive Economic Zone (EEZ) of Qatar
( Elsevier , 2015 , Article)A study on 137Cs, 40K, 226Ra, 228Ra, and 238U was carried out along the EEZ of Qatar. Results serve as the first ever baseline data. The level of 137Cs (mean value 1.6 ± 0.4 Bq m 3) in water filters was found to be in the ... -
Metal distribution in marine sediment along the Doha Bay, Qatar.
( Springer , 2015 , Article)Concentrations of 25 heavy metals (Ag, Al, As, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, Pb, Sb, Se, Sr, V, Zn and Hg) in surface sediments along the Doha Bay from 10 transects each with five stations were ... -
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 ... -
Hypoxia in the central Arabian Gulf Exclusive Economic Zone (EEZ) of Qatar during summer season
( Elsevier , 2015 , Article)Abstract One of the most fascinating and unexpected discoveries during the Qatar University Marine Expeditions to the marine Exclusive Economic Zone (EEZ) of Qatar in 2000–2001, was the detection of a hypoxic water layer ... -
Artisanal fishing of spiny lobsters with gillnets — A significant anthropic impact on tropical reef ecosystem
(2015 , Article)Abstract Artisanal fishing activity with gillnets to capture the spiny lobster is a common practice along the coastal reefs of Brazil. This research aims to understand the impact that this artisanal fishing practice is ... -
Measurement and modelling of nitrogen dioxide (NO2) emissions: a marker for traffic-related air pollution in Doha, Qatar
( Taylor & Francis , 2015 , Article)In the State of Qatar, recent statistics show a continued increase in the motor-vehicle fleet commensurate with population growth and economic development. This trend, together with the rapid expansion of urban areas and ... -
A microarray-based analysis of oocyte quality in the European clam Ruditapes decussatus
( Elsevier , 2015 , Article)Abstract A microarray-based analysis was performed with the objective of describing genomic features of oocytes and looking for potential markers of oocyte quality in the economically important European clam, Ruditapes ... -
Karyotype of Palaemon khori (Decapoda:Palaemonidae)
( Universite de Paris VI , 2015 , Article)The diploid number and karyotype of the palaemonid shrimp Palaemon khori (Decapoda: Palaemonidae) were determined for the first time, presenting 2n = 96 and comprising 26 metacentric, 7 submetacentric, 12 subtelocentric ... -
The importance of microbial mats for dolomite formation in the Dohat Faishakh sabkha, Qatar
( Springer Verlag , 2015 , Article)The Dohat Faishakh sabkha in Qatar is one of the rare modern environments where it is possible to study the formation of dolomite, a mineral whose origin has been long debated. In previous studies, dolomite formation in ...