تتمتع منطقة نهر باراغواي البيئية بثراء بيئي كبير حيث يوجد بها 350 نوعًا من الأسماك، منها 80 نوعًا متوطنًا.[2] حوالي 80٪ من أنواع الأسماك في النهر هي أسماك الكراسينوالسلور.[2]
Bascheck, B. and Hegglin, M. (2004). Plata/Paraná River Basin, A Case Study. Swiss Federal Institute for Environmental Science and Technology.
Da Rosa, J. E. (1983). Economics, politics, and hydroelectric power: the Paraná River Basin. Latin American Research Review, VXVIII (3), pp. 77–107.
Elhance, A. P. (1999). Hydropolitics in the 3rd World, Conflict and Cooperation in International River Basins. Washington, D.C.: United States Institute of Peace.
Gleick, P.H., ed. Water in Crisis. A Guide to the World's Fresh Water Resources, New York: Oxford University Press, pp. 13–24.
Kulshreshtha, S.N. (1993). World Water Resources and Regional Vulnerability: Impact of Future Changes. RR-93-10, IIASA, Laxenburg, Austria.
Lammers, O., Moore, D. and Preakle, K. (1994). Considering the Hidrovia: a preliminary report on the status of the proposed Paraguay/Parana waterway project. Working Paper 3. Berkeley, California: International Rivers Network, July.
^ ابHales, J., and P. Petry (2013). Paraguay. Freshwater Ecoregions of the World. Retrieved 28 February 2013 نسخة محفوظة 2017-02-11 على موقع واي باك مشين.