Characterizing gut microbiota of adult and juvenile giant freshwater prawn Macrobrachium rosenbergii in Nyatoh River, Malaysia
Sairatul Dahlianis Ishak (a*), Meng-Kiat Kuah (b), Victor Tosin Okomoda (a), Hon-Jung Liew (a), Rabi Atun Adawiyah Abdullah (a), Norainy Md Husin (a), Md Ikhwanuddin (a,c)

(a) Higher Institution Centre of Excellence (HICOE), Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
(b) Lab-Ind Resource Sdn Bhd, 48300 Bandar Bukit Beruntung, Selangor, Malaysia
(c) STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, Guangdong, China

Abstract

A survey was conducted at Nyatoh River, in the state of Terengganu, Malaysia, to evaluate the gut microbiome profile of the giant freshwater prawn (Macrobrachium rosenbergii) between two life stages, juvenile and adult. Sampling was done in a 5-day expedition and gut samples were collected and microbial communities were characterized using 16S rRNA amplicon sequencing on the Illumina platform. The difference in life stages had physiologically influenced gut microbiome. Moreso, the changes in external environment between locations might have also directly introduced environment-associated microbes, which indirectly interfered with the composition of indigenous gut bacteria.

Keywords: aquaculture, freshwater prawn, gut microbes, health management, inland fisheries, Terengganu.

Topic: Sustainable Aquaculture and Fisheries