An insightful overview of River Ecology:

Ward, J.V. and Tockner, K. (2001) Biodiversity: towards a unifying theme for river ecology. Freshwater Biology46, 807-819.

A closer look at the theories of river restoration:

Palmer et al. (2005) Standards for ecologically successful river restoration. Journal of Applied Ecology, 42, 208–21.

Functioning and food webs in freshwaters:

Can we, and should we, put a monetary value in our rivers?

Egoh, B et al. (2007) Integrating ecosystem services into conservation assessments: a review. Ecological Economics 63,  714-721.

What algae can tell us..

Kelly, M., Krokowski, J. and Harding, J. (2016) RAPPER: A new method for rapid assessment of macroalgae as a complement to diatom-based assessments of ecological statusScience of The Total Environment.