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Now showing items 121-126 of 126
Effects Of Gamma Radiation On The Motility And Attraction Of The Mediterranean Fruit Fly Ceratitis Capitata Wied, To Light, Colours And Odour
(
Qatar University
, 1988 , Article)
Full grown pupae of the Mediterranean fruit fly, Ceratitis capitata were irradiated at three gamma dosages (50, 70 and 90 gray). The different effects on the motility and attraction to light colours and odour of the produced ...
On The Earthworm Fauna And Distribution In The State Of Qatar
(
Qatar University
, 1986 , Article)
This paper is a preliminary account of the earthworms collected in February and March, 1986, from 10 localities in Qatar. Five species, Amynthas corticis (Family Megascolecidae), Dichogaster bolaui (Family Octochaetidae), ...
Studies on digenetic trematodes of some red sea fish 1. General survey
(
Qatar University
, 1983 , Article)
812 Red Sea fish, belonging to 33 species, were examined for digenetic trematodes. All species of fish were infected with one or more genera of trematodes. Out of 812 fish, 394 (48.5%) were positive. The incidence of ...
Factors Governing Mosquito Susceptibility To Bacillus Sphaericus Strains
(
Qatar University
, 1992 , Article)
Three lyophilized strains of Bacillus sphaericus (1593-4, 2297 and SSII) were tested against four different mosquito species. Culex pipiens larvae demonstrated the highest level of susceptibility towards the 3 B. sphaericus ...
Population Ecology of the Intertidal Sea Star Asterina Burtoni Gray (Asreroidea: Echinodermata) In the Wakrah Bay, South East Of Qatar
(
Qatar University
, 1995 , Article)
The abundance, distribution and population age structure of the sea star Asterina burtoni Gray were investigated in the intertidal area of the Wakrah Bay, South East Qatar Peninsula from October, 1993 to January, 1994. The ...
Effect Of Oral Administration Of Alcohol On The Developing Rat Embryos
(
Qatar University
, 1988 , Article)
Pregnant rats were forced to ingest 0.015 ml of 25% ethanol/gm body weight daily starting from day 7 (D7-group) or day 9 (D9-group) until day 15 of gestation. The number of surviving embryos significantly decreased and ...