sentence: there are regional programs for the conservation of endangered species : americas : species survival plan ssp ( association of zoos and aquariums aza , canadian association of zoos and aquariums caza ) europe : european endangered species programme eep ( european association of zoos and aquaria eaza ) australasia : australasian species management program asmp ( zoo and aquarium association zaa ) africa : african preservation program app ( african association of zoological gardens and aquaria paazab ) japan : conservation activities of japanese association of zoos and aquariums jaza south asia : conservation activities of south asian zoo association for regional cooperation sazarc south east asia : conservation activities of south east asian zoos association seaza challenges captive breeding techniques are usually difficult to implement for highly mobile species like some migratory birds ( e.g. crane ) and fishes ( e.g. hilsa ) .