Canadian Science Publishing

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Effects of Long-Term Exposures to Copper on Survival, Growth, and Reproduction of Brook Trout (Salvelinus fontinalis)
Canadian Science Publishing - Tập 28 Số 5 - Trang 655-662 - 1971
James M. McKim, Duane A. Benoit
During a 22-month period, all developmental stages of the brook trout (Salvelinus fontinalis) were exposed to copper (Cu(II)) concentrations ranging from 32.5 to 1.9 μg/liter. The highest concentration decreased survival and growth in adult fish and reduced both number of viable eggs produced and hatchability. Survival, growth, and reproductive success of adults in copper concentrations f...... hiện toàn bộ
Interaction of Temperature and Copper Ions as Orienting Stimuli in the Locomotor Behavior of the Goldfish (Carassius auratus)
Canadian Science Publishing - Tập 30 Số 6 - Trang 725-728 - 1973
H. Kleerekoper, Jonathan Waxman, J. H. Matis
Movements of single goldfish (Carassius auratus) were monitored in a free choice situation comprising zones of laboratory water or copper-containing water (0.010 ppm as CuCl2) each at two temperatures, 21.1 ±.1 and 21.5 ±.1 C.Fish entered the copper zone at 21.1 C significantly less frequently and spent less time there per entry as compared to the noncopper zone ("avo...... hiện toàn bộ
Orientation of Goldfish (Carassius auratus) in Response to a Shallow Gradient of a Sublethal Concentration of Copper in an Open Field
Canadian Science Publishing - Tập 29 Số 1 - Trang 45-54 - 1972
H. Kleerekoper, G. F. Westlake, J. H. Matis, P. Gensler
In slowly flowing water, seven naive goldfish 30-cm long changed their locomotor behavior upon entering a mass of water containing shallow gradients of copper chloride. The concentration was 11–17 μg/liter Cu++ in most of this mass, with small isolated pockets containing maximally 50 μg/liter. The amount of time spent by the fish, the average size of turn, and the var...... hiện toàn bộ
Histological and Electron Microscopical Observations on Copper Poisoning in the Winter Flounder (Pseudopleuronectes americanus)
Canadian Science Publishing - Tập 26 Số 11 - Trang 2785-2793 - 1969
Jeffrey P. Baker
Effects of high, medium, and low levels of copper on the morphology of winter flounder were investigated using routine histological techniques and electron microscope analyses.High and medium levels of copper resulted in fatty metamorphosis in the liver, necrosis in the kidney, destruction of the hemopoetic tissue, and gross changes in gill architecture. Seven other structures and organs ...... hiện toàn bộ
Effects of Mercury and Copper on the Olfactory Response in Rainbow Trout, Salmo gairdneri
Canadian Science Publishing - Tập 33 Số 7 - Trang 1568-1573 - 1976
Toshiaki HARA, Y. M. C. Law, S. Macdonald
The effects of mercury and copper on the olfactory response of rainbow trout (Salmo gairdneri) were studied by perfusing HgCl2 and CuSO4 solutions through the olfactory organs while recording the olfactory bulbar electrical responses to the standard stimulant, L-serine.The olfactory response was depressed during exposure to mercury and copper. The...... hiện toàn bộ
The Morphology, and Some Observations on the Population Genetics of Anisakis simplex Larvae (Nematoda: Ascaridata) from Fishes of the North Atlantic
Canadian Science Publishing - Tập 34 Số 1 - Trang 105-112 - 1977
Mary Beverley‐Burton, O. L. Nyman, John H. C. Pippy
The morphology of larval Anisakis simplex in a subsample taken from Atlantic herring, Clupea harengus harengus, in the North Sea (and used in previous in vitro culture experiments) is described, with particular reference to the excretory system.The morphological similarities of these larvae from C. harengus harengus and Atlantic salmon, Salmo salar, taken in widely separated locations in ...... hiện toàn bộ
Homing of Rainbow Trout to Inlet and Outlet Spawning Streams at Loon Lake, British Columbia
Canadian Science Publishing - Tập 16 Số 5 - Trang 695-719 - 1959
C. C. Lindsey, T. G. Northcote, G. F. Hartman
A four year field study was conducted on rainbow trout (Salmo gairdneri) spawning in the inlet and outlet of Loon Lake. Young and adult trout were trapped and marked in both streams. About 5000 fish spawn in the outlet between mid-March and June; about 22,000 spawn in the inlet between late April and July. Outlet young either enter the lake by late summer or overwinter in the stream and e...... hiện toàn bộ
Theory of the Exploitation of Tidal Energy and Its Application to the Bay of Fundy
Canadian Science Publishing - Tập 26 Số 11 - Trang 2887-2957 - 1969
Gabriel Godin
Considerable progress has been made in the understanding of the concepts underlying the exploitation of tidal energy during the last 20 years; this progress has culminated in the actual construction of a tidal plant at the mouth of the Rance River near St. Malo, France. Since the Bay of Fundy is one of the largest reservoirs of tidal energy in the world, the theory of exploitation of tida...... hiện toàn bộ
Effect of Tidal Barriers Upon the M2 Tide in the Bay of Fundy
Canadian Science Publishing - Tập 26 Số 9 - Trang 2477-2492 - 1969
Kenneth B. Yuen
A model was constructed for the M2 tide in the Bay of Fundy, in which the two-dimensional hydrodynamical equations with quadratic friction were integrated in time. After calibration tests, in which the normal tide was reproduced, calculations were carried out to determine any changes from the normal configuration caused by the presence of tidal barriers in the vicinit...... hiện toàn bộ
So sánh hành vi cạnh tranh và ăn uống của cá hồi nuôi trong trại và cá hồi hoang dã trong bể nuôi Dịch bởi AI
Canadian Science Publishing - Tập 25 Số 1 - Trang 1-14 - 1968
Owen C. Fenderson, W. Harry Everhart, Kenneth M. Muth
Khi cá hồi đại dương (Salmo salar) nuôi trong trại và cá hồi hoang dã cùng tuổi và kích cỡ được cho phép cạnh tranh cho vị trí xã hội và thức ăn trong bể nuôi, số lượng cá hồi nuôi đạt được vị trí thống trị gấp đôi so với cá hồi hoang dã. Các con cá hồi nuôi đạt vị trí thống trị cũng thể hiện sự hung hãn cao hơn so với các con cá hồi hoang dã thống trị, với tỷ lệ mổ cao hơn và biến thiên ...... hiện toàn bộ
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