Mitochondrial DNA analysis of North Pacific sword-fish Xiphias gladius population structure Grijalva-Chon, JM ; Numachi, K. ; Sosa-Nishizaki, O. ; de la Rosa-Velez, J. Abstract Publication: Marine Ecology Progress Series Pub Date: 1994 DOI: 10.3354/meps115015 Bibcode: 1994MEPS..115...15G