Author: (Mauduyt, 1848)
FBname: Poitevin stickleback
Comments: Inhabits streams, tributaries, and ponds. May also have a tolerance of salinity like the other species of <i>Pungitius</i>. In the Garonne drainage, it has a very restrictive habitat with low elevation and short distance from the source. Monogamy observed, also nest building, but monogamy needs to be verified because ordinarily, the ninespined-sticklebacks are polygamous. It can hybridize with the two other species where they are in sympatry: with <i>P. pungitius</i> in the Vienne basin and <i>P. laevis</i> in the coastal Atlantic Basins (Ref. 125067).