Browsing by Advisor
Now showing items 9-20 of 20
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Ecology of a northern pike (Esox Iucius) population in a small, oligotrophic Lake : with comparisons to other northwestern Ontario populations
(1988)The life history and population dynamics of the northern pike (Esox lucius) within Squeers Lake, Ontario were studied in order to provide information on pike found within oligotrophic lakes. Results clearly demonstrate ... -
Ecology of forage fish following cessation of overharvest of walleye in Henderson Lake, Ontario
(1988)I examined the forage base of Henderson Lake, Ontario following collapse of its walleye stock due to overexploitation, and an inexplicable decline of the ninespine stickleback population. In response to these events a ... -
Ecology of northern pike, Esox lucius Linnaeus, in Savanne Lake, Ontario
(1980)Important aspects of the life history and population dynamics of the northern pike, Esox lucius, in Savanne Lake, Ontario were studied during 1977 and 1978. Feeding relationships involving northern pike and walleyes, ... -
Effects of an episodic removal scheme on a walleye, stizostedion vitreum vitreum, population
(1985)A pulse fishing scheme, applied over a three year period (1980 to 1982), deliberately removed 3226 walleye from Henderson Lake, Ontario, causing the stock to collapse. The objective of the removal was not only to seek ... -
Effects of depressed pH on survival, growth and reproduction of brook trout, Salvelinus fontinalis (Mitchill)
(1977)Brook trout were continuously exposed to depressed pH values from 4.0 to 6.0, at 0.5 unit Intervals during a nine-month partial-chronic bloassay. At all pH levels above 4.0, Juvenile fish exhibited greater than 96 per ... -
Effects of selected biotic and abiotic factors on growth and survival of young crayfish, Orconectes virilis (Hagen)
(1988)The growth and survival of Orconectes virilis young was studied in 50 x 50 x 50 cm lake enclosures during the summer seasons of 1986 and 1987. The effects of density (12/m2, 40/m2, 160/m2), substrate (mud, sand, ... -
Factors that predict brook trout distribution, thermal habitat, and abundance in Northwestern Ontario streams
(1995)Predictive models were developed to improve the understanding of stream-resident brook trout (Salvelinus fontinalis) populations and habitat in northwestern Ontario, and to facilitate protection of stream-resident brook ... -
Initial effects of the exploitation of walleye, Stizostedion vitreum vitreum (Mitchill) on the boreal percid community of Henderson Lake, Northwestern Ontario
(1982)The effect of large scale exploitation of walleye Stizostedion vitreum vitreum on the boreal percid community of Henderson Lake, northwestern Ontario, was studied from 1979 to 1981. Investigations centered on the two major ... -
Population dynamics of an exploited population of Orconectes virilis in Northwestern Ontario
(1987)Exploitation of northern stocks of the crayfish Orconectes virilis (Hagen) produced significant alterations in several population parameters. High fishing efforts increased per capita fecundity, young-of-year (YOY) ... -
Production ecology of the amphipod Hyalella azteca (Saussure) in a Northern Ontario lake
(1982)Annual production of the amphipod Hyalella azteca was estimated in the upper littoral zone of Dock Lake, Ontario, over a 2 year period (1980-1981). Population density (negligible below 1 meter) differed among the three ... -
Pulse fishing of a walleye population : response, recovery and management implications
(1997)The response of the Henderson Lake boreal fish community to a large scale exploitation of walleye was studied. The pulse fishery removed approximately 89 percent (3226) of adult walleye (1980-82) from Henderson lake ... -
The 96-hr LC50 and uptake of sodium tellurite in goldfish (Carrasius auratus)
(1992)There is no information regarding toxicity of tellurium in fish. This research used goldfish (Carassius auratus) as an animal model, and sodium tellurite ( Na2Te03) as the form of tellurium to tested. Acute 96-hr LC50 ...