Absence of the Pelvic Complex in Ninespine Sticklebacks, Pungitius pungitius, Collected in Ireland and Wood Buffalo National Park Region, Canada, with Notes on Meristic Variation

Abstract

A high proportion of ninespine sticklebacks, Pungitius pungitius, fail to develop a complete pelvic complex (pelvic fins and pelvis) in 10 known localities in I...