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Showing 1 to 20 of 78 for “"minnows"”.
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Effects of Rodeo Herbicide on Aquatic Invertebrates and Fathead Minnows
… 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. Probit …
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Predatory and Mutualistic Interactions between Freshwater Minnows and their Predators
… habitat for not only themselves, but for other minnows, collectively called "nest associates". In this work, I observe the predatory and potential mutualistic interactions between chubs, nest associates, and their predators. In Chapter 1, I observe spawning nests to identify the predators of …
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Fathead Minnows, Aquatic Invertebrates, and Mallard Duckling Interactions in Man-Made Ponds
… 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 minnows …
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The effects of dietary selenomethionine on the escape behaviours of Fathead Minnows
… behaviours of the fast-start response in Fathead Minnows. Additionally, there were no latent changes to Fathead Minnow escape behaviour throughout the recovery period. These results were contrary to both my predictions and the literature that showed critical swimming behaviour was compromised in …
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A Comparison of Olfactory Organ Development and Feeding Behavior in Larval Fathead Minnows, Pimephales promelas Rafinesque
… 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 adversely …
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Effects of nanosilver and silver nitrate exposure on fathead minnows (Pimephales promelas) and zebrafish (Danio rerio)
… 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 expression, …
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The evolution and benefits of nest association and other reproductive strategies in North American minnows (Cyprinidae)
With over 293 species, Cyprinidae (minnows) is the largest family of fishes in North America. Although a diverse group of obvious ecological importance, very little is known about the life histories of North American minnows, including reproductive behavior. In order to promote understanding of the …
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The Effect of Acute Low pH on Feeding and Locomotor Activity of Larval Fathead Minnows, Pimephales promelas
… 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) light …
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Estimate of Production By a Population of Fathead Minnows, Pimpephales promelas, In a South Dakota Prairie Wetland
… 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 fin …
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Impacts of Oil Exposure During Early Life Development Stages In Sheepshead Minnows (<i>Cyprinodon variegatus</i>) Under Different Environmental Factors
<p>The release of approximately 5 million barrels of crude oil into the northern Gulf of Mexico during the 2010 Deepwater Horizon oil spill jeopardized estuarine ecosystem health from Texas to Florida. These estuarine habitats, which serve as nurseries for many important fisheries are also prone to …
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REPRODUCTION IN FATHEAD MINNOWS (PIMEPHALES PROMELAS) FOLLOWING WATER OR SEDIMENT EXPOSURE TO A COMPLEX URANIUM MILLING EFFLUENT ELEVATED IN SELENIUM
… of any observed effects. Trios of fathead minnows were allocated to one of four treatments for 21-days where the following were evaluated: survival (adult and 5 day larval), larval deformities, reproductive effects (egg production, spawning events) and metal tissue burdens (muscle, ovary, …
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The comparative osteology and taxonomy of the North American cyprinid genera, Richard-sonius, Clinostomus and Semotilus, with notes on other minnows
… limited survey was made ~f other North American minnows. This included representatives of the related and more distantly related genera, <i>Gila, Ptychocheilus, Nocomis, Campostoma, Exoglossum, Pimephales, Rhinichthyes</i> and <i>Notropis</i>. Several suckers were also examined. Some …
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