Acoustic tracking of bigeye thresher shark Alopias superciliosus in the eastern Pacific Ocean Nakano, H. ; Matsunaga, H. ; Okamoto, H. ; Okazaki, M. Abstract Publication: Marine Ecology Progress Series Pub Date: 2003 DOI: 10.3354/meps265255 Bibcode: 2003MEPS..265..255N