Hi, it is a lot of scientific articles about freshwater invertebrates. If you want to look, on my profile you have some parasitic freshwater invertebrates. Most of them belong to the Protozoa kingdom, but you have a lot of nematodes, crustaceans ect. Please, look at the profile of prof.dr. Vera Nikolić, you will see all parasitic invertebrates of freshwater fish species that are established in Balkan Peninsula.
Please find through the seven links below useful data (articles) related to bio-ecological aspects of freshwater invertebrates living in rivers, with several potential references cited:
You might start with these books: "The Ecology of Running Waters", "An Introduction to Aquatic Insects of North America" or "The Ecology of Aquatic Insects". If you are searching about the topic of "invertebrate emergence", you might look papers like these:
Multiple-site and-year analyses of stream insect emergence: a test of ecological theory.
Flash floods and aquatic insect life-history evolution: evaluation of multiple models.
Emergence Cues Of A Mayfly In A High-Altitude Stream Ecosystem: Potential Response To Climate Change
Allan, J.D. 1995. Stream ecology: structure and function of running waters. Chapman & Hall. New York. 388 pp. (cf. http://www.amazon.com/Stream-Ecology-Structure-Function-Running/dp/0412355302).
Barnes, J.R., and G.W. Minshall, eds. 1983. Stream ecology: application and testing of general ecological theory. Plenum Press. New York (cf. https://www.amazon.com/Stream-Ecology-Application-Testing-Ecological/dp/0306414600).