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Full-Text Articles in Life Sciences
Blue Sucker Summer Utilization Distributions And Inter-Annual Fidelity To Summering Habitats, J. David Adams, Casey L. Bergthold, Justin D. Haas, Mark A. Pegg, Gerald E. Mestl
Blue Sucker Summer Utilization Distributions And Inter-Annual Fidelity To Summering Habitats, J. David Adams, Casey L. Bergthold, Justin D. Haas, Mark A. Pegg, Gerald E. Mestl
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
Blue Sucker Cycleptus elongatus populations in the Missouri River are believed to be declining. The decline is most likely attributable to anthropogenic modifications including channelization and dam construction. We compared 2008 and 2009 summer use distribution (UD) for 21 blue suckers implanted with acoustic tags to better understand how blue suckers use the Missouri River. UDs are used to analyze space-use requirements based on the home range concept. The geometric mean 95% UD range was 1.9 river kilometers (RKM) in 2008 and 0.3 RKM in 2009, and differed statistically by year. The upper bound of the 2008 95% UD accounted …
Examining Movement And Habitat Selection Of Everglades Fishes In Response To Seasonal Water Levels, Gregory J. Hill
Examining Movement And Habitat Selection Of Everglades Fishes In Response To Seasonal Water Levels, Gregory J. Hill
FIU Electronic Theses and Dissertations
Fish distribution patterns and seasonal habitat use play a key role in the food web dynamics of aquatic ecosystems, including the Florida Everglades. In this study I examined the fine scale habitat shifts and movements of spotted sunfish, Lepomis punctatus across varying seasons and hydrologic conditions using in-situ field enclosures and Passive Integrated Transponder (PIT) systems. Data on fish use of three dominant Everglades marsh habitats and activity level were recorded continuously from January to August, 2015. Fish were more active and had the highest use of higher elevation habitats when water levels rose during an experimental reversal in mid-April. …