Latin name: Gasterosteus aculeatus
There are unique populations of this species in Iceland with reduced skeletal elements. We identified locations of populations and recommended them for conservation. We also conducted experimental field studies to demonstrate rapid evolution of freshwater populations from marine origins.
Morphological segregation of Icelandic threespine stickleback (Gasterosteus aculeatus L).
Unusual number of pectoral fin rays in an Icelandic population of threespine stickleback (Gasterosteus aculeatus) recently isolated in freshwater