Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Ibrahim H. Zeitoun"'
Publikováno v:
Environmental sciencetechnology. 14(4)
Autor:
Peter I. Tack, Ibrahim H. Zeitoun
Publikováno v:
Transactions of the American Fisheries Society. 103:371-375
The early development of the coho salmon, Oncorhynchus kisutch, is similar to that of the chum salmon, Oncorhynchus keta, as already described in the literature. This study of the coho salmon begins at the closure of the blastopore where the work of
Autor:
Ibrahim H. Zeitoun
Publikováno v:
Environmental Science & Technology. 12:1173-1179
Publikováno v:
Journal of the Fisheries Research Board of Canada. 34:83-88
During the first 2 wk of incubation, the pattern of change in DNA concentration tended to precede similar changes in RNA concentration. Unfertilized eggs contained 23.2 and 77.2 μg of DNA and RNA, respectively. DNA concentration rose from 155.8 μg/
Publikováno v:
Journal of the Fisheries Research Board of Canada. 31:1145-1148
Six purified diets ranging from 30 to 55% protein in 5% increments were fed for 10 wk to duplicate groups of coho salmon (Oncorhynchus kisutch) smolts maintained at 10 or 20‰ salinity. The data indicated that minimum protein requirements did not di
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 38:120-125
Samples of ichthyoplankton entrained through 2.0-mm and 9.5-mm-slot opening cylindrical wedge-wire screens and through an open pipe (control) were collected in June, July, and August 1979, 1067 m off the southeast shore of Lake Michigan at a depth of
Autor:
Ibrahim H. Zeitoun, John Z. Reynolds
Publikováno v:
Environmental Science & Technology. 12:780-783
Publikováno v:
Journal of the Fisheries Research Board of Canada. 33:167-172
Four replicates of 50 rainbow trout (Salmo gairdneri) fingerlings each were assigned to each of seven dietary protein levels from 30 to 60% in 5% increments. Percentage weight gains for 10 wk were related to dietary protein levels using an analysis o
Publikováno v:
Journal of the Fisheries Research Board of Canada. 34:1034-1039
Blood was pooled from randomly selected 3-yr-old rainbow trout (Salmo gairdneri) before addition of chlorine to their water environment and afterward when fish began to gulp for air and lose equilibrium. In five duplicate tests, plasma concentrations
Autor:
Ibrahim H. Zeitoun
Publikováno v:
Environmental Biology of Fishes. 3:355-359
The ability of adult rainbow trout (Salmo gairdneri) to recover from acute chlorine exposure was tested. Six separate tests were carried out in duplicate. Blood was collected from each duplicate group of fish at the beginning of the test, at the appe