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The Effect Of Alkalinity On Lampricide Effectiveness And Gill Physiology In Invasive Sea Lamprey (Petromyzon Marinus), Alexandre J. Walsh
The Effect Of Alkalinity On Lampricide Effectiveness And Gill Physiology In Invasive Sea Lamprey (Petromyzon Marinus), Alexandre J. Walsh
Theses and Dissertations (Comprehensive)
The pesticides, 3-trifluoromethyl-4-nitrophenol (TFM) and niclosamide are used to control populations of invasive sea lamprey (Petromyzon marinus) in the Laurentian Great Lakes of North America. Added to streams infested with larval sea lamprey, the effectiveness of these pesticides, commonly called lampricides, are strongly influenced by water pH, with greater toxicity for both TFM and niclosamide in lower pH than higher pH water. However, the TFM and niclosamide sensitivity of sea lamprey are also greater in poorly buffered, low alkalinity water than in high alkalinity water but it is unclear why. One goal of my thesis was to propose …
The Influence Of Water Chemistry And Gill Physiology On The Uptake Of The Lampricide Tfm By Lake Sturgeon (Acipenser Fulvescens), Scott Leslie James Hepditch
The Influence Of Water Chemistry And Gill Physiology On The Uptake Of The Lampricide Tfm By Lake Sturgeon (Acipenser Fulvescens), Scott Leslie James Hepditch
Theses and Dissertations (Comprehensive)
Application of 3-trifluoromethyl-4-nitrophenol (TFM) to control invasive sea lamprey (Petromyzon marinus) within the Laurentian Great Lakes seldom causes non-target mortality. However, under certain conditions, TFM can harm species such as the lake sturgeon (Acipenser fulvescens). Lake sturgeon less than 100mm in length are particularly vulnerable to TFM-induced mortality, and are more sensitive to TFM toxicity with increasing water alkalinity as compared to sea lamprey. The objectives of this study were to evaluate the influence of pH and alkalinity on the uptake of TFM by juvenile sturgeon using radio-labeled TFM (14C-TFM). An additional objective was …
Metabolic Scaling Physiology And The Uptake, Elimination And Toxicity Of Tfm (3-Trifluoromethyl-4-Nitrophenol) To Invasive Sea Lampreys (Petromyzon Marinus), Laura R. Tessier
Metabolic Scaling Physiology And The Uptake, Elimination And Toxicity Of Tfm (3-Trifluoromethyl-4-Nitrophenol) To Invasive Sea Lampreys (Petromyzon Marinus), Laura R. Tessier
Theses and Dissertations (Comprehensive)
Sea lampreys (Petromyzon marinus) have a complex life cycle that involves a parasitic phase in which they feed on the blood and bodily fluids of large piscivorous fishes. Following the invasion of the Great Lakes by sea lampreys in the early 20th century, sea lamprey parasitism contributed to major declines in the populations of commercial and sports fisheries in that basin. The lampricide 3-trifluoromethyl-4-nitrophenol (TFM), developed in the late 1950s,is now routinely applied to tributaries of the Great Lakes to control sea lamprey populations. This lampricide is selectively toxic to larval sea lampreys, which typically reside as …