riverine

river +‎ -ine

riverine (comparative more riverine, superlative most riverine)

1. Of or pertaining to rivers, or located on or by a river
   • 2004, Don Moll, The Ecology, Exploitation and Conservation of River Turtles‎, page 46:

     It is perhaps instructive to note that tropical riverine batagurids, although more similar to other river-dwelling lineages in reproductive patterns than to other semi-aquatic and terrestrial batagurids, still tend to have lower fecundities and bigger eggs relative to their body sizes than do the other groups (e.g., riverine emydids, trionychids, and podocnemids) (Moll & Moll, 1990).

   • 2017: We don’t need to save endangered species. Extinction is part of evolution" by R. Alexander Pyron in the Washington Post

     When beavers make a dam, they cause the local extinction of numerous riverine species that cannot survive in the new lake.

• fluvial

• riparian