prey
http://www.fishbase.org/entity#auxis_rochei_rochei
http://www.fishbase.org/entity#auxis_thazard_thazard
http://www.fishbase.org/entity#balistes_vetula
http://www.fishbase.org/entity#katsuwonus_pelamis
http://www.fishbase.org/entity#vinciguerria_nimbaria
http://www.fishbase.org/entity#thunnus_albacares
http://www.fishbase.org/entity#thunnus_obesus