The American Paddlefish (Polyodon spathula) is an anadromous fish found in both freshwater and brackish water bodies of North America. They are filter-feeders with late maturity, longer lifespan, and
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest)
Once per year, at TS/Ph-4 and TS/Ph-5 we incubate periphyton from each site in water from each site in a complete factorial design. We quantify metabolic rates of periphyton assemblages using standar
An animal’s three-dimensional form, combined with the directional lighting that is typical of many natural light environments, often results in the production of self-shadows, which may increase prey
