Extreme spawning-site fidelity in Atlantic cod

作者:Skjaeraasen Jon Egil*; Meager Justin J; Karlsen Orjan; Hutchings Jeffrey A; Ferno Anders
来源:ICES Journal of Marine Science, 2011, 68(7): 1472-1477.
DOI:10.1093/icesjms/fsr055

摘要

Based on a 3-year mark-recapture study, evidence is provided of spawning-site fidelity in Atlantic cod (Gadus morhua) at a scale (<1 km) smaller than documented previously. Coastal regions where barriers to dispersal exist may allow for local population dynamics and adaptation to develop in broadcast-spawning marine fish at extremely fine spatial scales.