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Full-Text Articles in Life Sciences
An Assessment Of Night Time And Seasonal Electrofishing In The Lower Wabash River, Eric Christopher Hine
An Assessment Of Night Time And Seasonal Electrofishing In The Lower Wabash River, Eric Christopher Hine
Masters Theses
Large rivers are highly important systems; being exploited both commercially and recreationally. Because of this usage by humans, close monitoring of the ecology of theses rivers is of the utmost importance. The Long-Term Electrofishing project (LTEF) monitors the fish communities of the Illinois, Mississippi, Wabash, and Ohio rivers using day time, pulsed-DC electrofishing during the late Spring through the early Fall each year. Given that previous studies have noted diel and seasonal changes in catch and composition of fish communities, the addition of night time electrofishing may be beneficial to the overarching goals of the LTEF. This study sought to …
Movements And Capture Efficiency Of The Blue Catfish Ictalurus Furcatus,In Lake Dardanelle, Zachary S. Moran
Movements And Capture Efficiency Of The Blue Catfish Ictalurus Furcatus,In Lake Dardanelle, Zachary S. Moran
Theses and Dissertations from 2018
Standardizing low-frequency electrofishing procedures for sampling Blue Catfish Ictalurus furcatus has become a recent focus of fisheries biologists. Information on habitat use, value of chase boats, and duration and timing of samples could increase sampling efficiency. To asses these variables in Lake Dardanelle, Arkansas, I divided this reservoir into lacustrine, transition, and riverine zones. I used a systematic random sample design, and electrofisher, to collect 8,067 Blue Catfish from 458 samples between May and September 2016. I found: (1) The most efficient season to sample was the summer season when water temperatures were >25°C; (2) CPUE was highest on channel …
The Effect Of Irrigation Diversions On The Mountain Whitefish (Prosopium Williamsoni) Population In The Big Lost River, Patrick Allen Kennedy
The Effect Of Irrigation Diversions On The Mountain Whitefish (Prosopium Williamsoni) Population In The Big Lost River, Patrick Allen Kennedy
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Management agencies documented a decline in the mountain whitefish (Prosopium williamsoni) population on the Big Lost River, and unscreened diversions were recognized as a potential factor for this decline. Research suggests the Big Lost River mountain whitefish population is genetically unique, and it has been petitioned for protection under the Endangered Species Act. In 2007, a basin-wide synopsis of diversions was conducted to describe relative entrainment and identify diversions that entrained the most mountain whitefish. This larger scaled synopsis facilitated a more precise assessment of entrainment by a subset of diversions in 2008. In 2008, the volume that …