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Showing 1 to 20 of 51 for “"fathead minnows"”.
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Effects of Rodeo Herbicide on Aquatic Invertebrates and Fathead Minnows
… the survival of six species of invertebrates and fathead minnows by placing them in enclosures in eight North Dakota wetlands that were aerially treated with Rodeo at 5.8 L/ha and in four that were untreated. The number of animals alive and dead were then counted up to 21 days post-treatment. …
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Fathead Minnows, Aquatic Invertebrates, and Mallard Duckling Interactions in Man-Made Ponds
… vertical traps caught more Coenagrionidae. Fathead minnows have the potential to affect invertebrate populations in wetlands. Stocking minnows in formerly fishless wetlands may negetatively affect duckling growth and survival. In 1991, 5 pairs of ponds (cells) were used to test what effect …
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The effects of dietary selenomethionine on the escape behaviours of Fathead Minnows
… diet on the escape behaviours of the Fathead Minnow. Using kinematic analysis, I observed how fish responded to various looming threats. I exposed fish to sub-chronic periods of environmentally relevant concentrations of selenium in the form of selenomethionine-spiked diets. I achieved …
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A Comparison of Olfactory Organ Development and Feeding Behavior in Larval Fathead Minnows, Pimephales promelas Rafinesque
… are important for early behavior development in fathead minnows and the ability of larvae to survive after hatching. Chemoreception is used in the location of food, avoidance of predators, and for intraspecific communication. Furthermore, some studies have shown the olfactory system to be …
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Effects of nanosilver and silver nitrate exposure on fathead minnows (Pimephales promelas) and zebrafish (Danio rerio)
… organisms. Our goal was to use two fish models, fathead minnows (Pimephales promelas; FHMs) and zebrafish ( Danio rerio; ZFs), to study the effects of AgNPs on gill histopathology, Na+/K+-ATPase immunoreactivity, mucus production, bioaccumulation, particle uptake characterization, gill gene …
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The Effect of Acute Low pH on Feeding and Locomotor Activity of Larval Fathead Minnows, Pimephales promelas
… feeding performance was investigated in larval fathead minnows one to fifteen days post-hatching. Each day, replicate sets of five larvae were exposed to each of three pH concentrations (4.5, 5-5, and 7.7) under various environmental conditions: (1) light conditions with live prey (LL), (2) …
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Estimate of Production By a Population of Fathead Minnows, Pimpephales promelas, In a South Dakota Prairie Wetland
… were obtained for an autochthonous population of fathead minnows, Pimephales promelas Rafinesque, in a South Dakota prairie wetland. The study was conducted from May to September of 1976. Population estimates were obtained using a Schnabel-type mark and recapture model. Fish were marked either by …
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REPRODUCTION IN FATHEAD MINNOWS (PIMEPHALES PROMELAS) FOLLOWING WATER OR SEDIMENT EXPOSURE TO A COMPLEX URANIUM MILLING EFFLUENT ELEVATED IN SELENIUM
… contribution and importance of each source to fathead minnow (Pimephales promelas) reproduction and survival. Identification of pathways of exposure is critical to the mitigation of any observed effects. Trios of fathead minnows were allocated to one of four treatments for 21-days where the …
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Validation of laboratory versus field avoidance behavior of schooling fathead minnows to heavy metal blends relative to acute toxicity during long term exposure
… 0.38 selenium) was determined for schools of fathead minnows (<i>Pimephales promelas</i>) in a laboratory avoidance chamber, an artificial stream and in a natural stream setting on a seasonal basis during continuous exposure to low levels of the metal blend for up to 9 months. Laboratory …
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Food Habits and Consumption Estimates of Walleyes Stocked as a Tool to Suppress Fathead Minnow Populations in West-Central Minnesota Wetlands
… waterfowl. However, persistent, highly abundant fathead minnow Pimephales promelas populations often prevent this clear-water state from occurring. The presence of fathead minnows has detrimental effects on macroinvertebrates, zooplankton, water clarity, and thus macrophytes and epiphyton. …
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Food Habits and Growth of Rainbow Trout in a Prairie Pond
… dipteran larvae (31.2%), corixids (7.0%), and fathead minnows (Pimephales promelas) (1.2%). Volumetrically, notonectids comprised 37.7% of the total volume of organisms, fathead minnows 16.8%, dipteran larvae 9.9%, and decapods 8.1%. Growth of the trout was better than in many areas of the …
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Strobe Light Effects On Stress and Avoidance Behavior in Fishes and Distribution of Zooplankton in Lake Oahe, South Dakota
… bass Micropterus salmoides), Cyprinidae (fathead minnows Pimephales promelas), Ictaluridae (channel catfish Ictalurus punctatus), Percidae (yellow perch Perca flavescens), and Salmonidae (chinook salmon Onchorhynchus tshawytscha). Plasma cortisol concentrations (μg dL-1) for channel …
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