Filters: Tags: freshwater ecology (X)189 results (188ms)
Juvenile production variation in salmonids: population dynamics, habitat, and the role of spatial relationships
We used an experimental manipulation to determine the impact of stocking 178 mm channel catfish Ictalurus punctatus in six impoundments. The study design consisted of equal numbers (two) of control, ceased-stock, and stocked treatments that were sampled one year before and two years after stocking. Relative abundance, growth, size structure, and average weight significantly changed over time based on samples collected with hoop nets. Catch rates decreased at both ceased-stock lakes and increased for one stocked lake, while growth rates changed for at least one ceased-stock and stocked lake. The average weight of channel catfish in the ceased-stock treatment increased by 6% and 25%, whereas weight decreased by 28%...
Increased abundance and depth of submersed macrophytes in response to decreased turbidity in Saginaw Bay, Lake Huron
Phytoplankton productivity in Saginaw Bay, Lake Huron: Effects of zebra mussel (Dreissena polymorpha) colonization
Contrasting chemical and biological patterns in recovery following six years of experimental acidification in Little Rock Lake, WI
Development and assessment of habitat suitability criteria for adult brown trout in southern New England rivers