Attributes / relations provided by
♦ ¹THE FOOD OF YELLOWFIN AND SKIPJACK TUNAS IN THE EASTERN TROPICAL PACIFIC OCEAN, FRANKLIN G. ALVERSON, INTER-AMERICAN TROPICAL TUNA COMMISSION Bulletin, Vol. VII, No. 5 (1963)
♦ ²DIET AND FEEDING BEHAVIOR OF FIN AND BRYDE'S WHALES IN THE CENTRAL GULF OF CALIFORNIA, MEXICO, Bernie R. Tershy, Alejandro Acevedo-G., Dawn Breese and Craig S. Strong, Rev. Inv. Cient. Vol. 1, UABCS, 1993