Abstract:
Fish disease is one of factor that contributes to mortality in fish farming.
Biology treatments were recommended to control and treat fish disease instead
of chemical treatments. Biology treatments that have potential are by using
cleaner wrasse Bluestreak Cleaner Wrasse, L. dimidiatus. L. dimidiatus act by
removed parasite from other fish that called client. L. dimidiatus reported to
have mutualism relationship with its client. Uniquely, no reports on
L. dimidiatus had infected with parasite from its client. So this research are to
determine antagonistics behaviour (Pose, bite, twitch, flee,chase and swipe)
between L. dimidiatus and its client Asian Seabass Lates calcarifer , to determine
immune related gene expression profile (Alkaline phosphatase, Cathepsin B,
Cathepsin D dan Cathepsin L) during cleaning activities and to relate both of
this research finding. So, 2 L. dimidiatus were placed together with infected
L. calcarifer in 2 feet aquarium for 48 hours (2 days) to determine antagonistic
behaviour.
