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Articles 1 - 2 of 2
Full-Text Articles in Physical Sciences and Mathematics
An Interspecies Investigation Of Thyroid Plasma Hormone Concentrations, Histology, And Gene Expression, Emily A. Underwood
An Interspecies Investigation Of Thyroid Plasma Hormone Concentrations, Histology, And Gene Expression, Emily A. Underwood
Graduate Theses, Dissertations, and Problem Reports
A high prevalence of endocrine disrupting chemicals (EDCs) in Great Lakes Areas of Concern (AOCs) has raised concerns as to the health and fitness of fish and wildlife. It is not well understood to what extent existing contaminants, many with continuing inflows into the environment, may impact fish populations. This study provides an initial characterization of thyroid endocrine-related effects in two indigenous fish species sampled from Great Lakes AOCs. Biomonitoring was conducted on a pelagic, top predator species, smallmouth bass (Micropterus dolomieu) and benthic, omnivorous brown bullhead (Ameiurus nebulosus) at 7 sites in spring and fall …
Application Of Molecular Pathology Techniques To Understand Mechanisms Of Disease In Smallmouth Bass, Heather Leigh Walsh
Application Of Molecular Pathology Techniques To Understand Mechanisms Of Disease In Smallmouth Bass, Heather Leigh Walsh
Graduate Theses, Dissertations, and Problem Reports
In the Chesapeake Bay drainage, smallmouth bass Micropterus dolomieu are used as an indicator species of estrogenic contaminant exposure and have been implicated in fish kills and disease since 2005. In the Potomac River drainage, adult smallmouth bass have experienced mortality and disease and males have a high prevalence of intersex (testicular oocytes). Conversely, in the Susquehanna River drainage mortalities and disease of young-of-the-year smallmouth bass (YOY SMB) have occurred and resulted in a population shift to older and larger fish. The exact cause of these events remains unknown; however, factors such as poor water quality, contaminants, pathogens and parasites, …