The California killifish, Fundulus parvipinnis, is a marine species that lives in salt marshes,
estuaries and wetlands along the California and Baja California coasts. In order to estimate
levels of dispersal between different coastal habitats over its range, we have studied six
populations using morphological and genetic markers. Lateral line scale and vertebrae
counts showed significant differences between individuals collected north of Punta Eugenia
and south of Punta Eugenia. Morphological differences across Punta Eugenia were …