Barriers to gene flow in Embiotoca jacksoni, a marine fish lacking a pelagic larval stage.

摘要: Abstract Marine species generally show high dispersal capabilities, which should be accompanied by levels of gene flow and low speciation rates. However, studies that focused on the relationship between in marine fishes have been inconclusive. This study focuses black surfperch, Embiotoca jacksoni, a temperate reef fish lacks pelagic larval stage lives almost continuous reefs along California Baja coasts. Mitochondrial control-region sequences from 240 individuals were obtained, phylogeographic patterns analyzed. A major break was found at Santa Monica Bay, sandy expanse prevents adult dispersal. Deep water separating southern Channel Islands also to barrier flow. Minor breaks detected Big Sur/Morro Bay Punta Eugenia/Guerrero Negro regions, but none Point Conception region. Gene E. jacksoni fo...