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Now showing items 31-40 of 67
Adenylate Energy Charge As A Tool For Evaluating Sub-Lethal Toxicity
(
Qatar University
, 1999 , Article)
Adenylate energy charge (AEC) is directly related to the cellular concentrations of the three adenylates nucleotides ATP, ADP and AMP. This biochemical index reaches high values (0.9) under optimal conditions but drops ...
A Preliminary Check-List Of Benthic Mollusca On The Qatari Coasts, Arabian Gulf
(
Qatar University
, 1994 , Article)
In this paper, an annotated checklist of the benthic marine Mollusca collected from Qatari coasts, Arabian Gulf, is presented. Localities and habitats are given for the common families of the recorded groups. Gastropoda ...
Selectivity Coefficient Of Wire Basket Traps For Tilapia Nilotica
(
Qatar University
, 1984 , Article)
Most methods of estimating growth and mortality rates require samples representative of the population with respect to size of one or more age groups. There is no fishing gear that exhibits equal selectivity towards fish ...
Circulation And Water Masses And Their Implication On Pollutant Transport During Summer In Abuquir Bay (Egypt)
(
Qatar University
, 1991 , Article)
Abuquir Bay is a shallow area with a mean depth of about 10 meters, and it is affected by significant sources of industrial and agricultural pollutants. Water masses, the distribution of dissolved oxygen and total suspended ...
Concentration of Some Heavy Metals in Short Cores in the Nearshore Sediments of Alexandria , Egypt
(
Qatar University
, 2006 , Article)
The Western Harbor, Eastern Harbor and Abu Qir Bay are three sites located along the Alexandria coast. These sites are characterized by extensive maritime and industrial activities. To investigate the penetration of heavy ...
Ecophysiology Of Desert Animals
(
Qatar University
, 1995 , Article)
The principal environmental problems that confront
both plants and animals in the desert are water shortage and
flooding, thermal extremes, and the absence of cover. Adaptational
responses to these include cryptobiosis, ...
Effects Of Overfishing And Abandoning Bottom Trawling On Qatar's Fisheries
(
Qatar University
, 1996 , Article)
The present study was conducted to overview the effects of abandoning bottom trawling and increasing fishing effort on the structure and dynamics of Qatar's fisheries during 1985-1994, using the fishery statistics data, ...
Inhibition Effect Of Four Oil Dispersants On Primary Productivity In Qatar Water (Ararian Gulf)
(
Qatar University
, 1987 , Article)
Four major oil dispersant mixtures in seawater wore used to depict their in—situ inhibition ratio to productivity rate of natural phytophanklon populations in Qatar water — Arabian Gulf — during the spring season of 1986. ...
Capabilities/limitations of landsat-tm data for bathymetric analysis of shallow marine environment: A case study
(
Qatar University
, 1999 , Article)
The intensity of the light received by Landsat satellite sensors is inversely proportional to the path length though the sea water column. Since the light passes down to the sea floor and back again, the intensity should ...
The fecundity of gerres oyena forskal 1775, ( fam. Gerreidae) in the qatari waters of the arabian gulf
(
Qatar University
, 1986 , Article)
Fecundity estimates were made on a total of 180 mature fish Genes oyena Forskal of different lengths and weights, collected during the early spring of 1985. Log-log relationships were estimated between fecundity (either ...