Comparative analysis of the intestinal bacterial communities in mud crab Scylla serrata in South India
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Little is known about the functions of the crustacean gut microbiome, but environmental parameters and habitat are known to affect the composition of the intestinal microbiome, which may in turn affect the physiological status of the host. The mud crab Scylla serrata is an economically important species, and is wild-caught, and farmed across the Indo-Pacific region. In this study, we compared the composition of the gut microbiome (in terms of gut microbial species richness and abundance) of S. serrata collected from wild sites, and farms, from the east and west coast of India, and also tested the effects of the environment on the composition. The water temperature had a statistically significant effect on gut microbiome composition, with microbial biodiversity decreasing with increasing water temperature. This could have negative effects on both wild and farmed mud crabs under future climate change conditions, although further research into the effects of temperature on gut microbiomes is required. By comparison, salinity, crab mass and carapace width, geographical location as well as whether they were farmed or wild-caught crabs did not have a significant impact on gut microbiome composition. The results indicate that farming does not significantly alter the composition of the gut microbiome when compared to wild-caught crabs.
Apine , E , Rai , P , Mani , M K , Subramanian , V , Karunasagar , I , Godhe , A & Turner , L M 2021 , ' Comparative analysis of the intestinal bacterial communities in mud crab Scylla serrata in South India ' , Microbiology Open , vol. 10 , no. 2 , e1179 . https://doi.org/10.1002/mbo3.1179
Copyright © 2021 The Authors. MicrobiologyOpen published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
DescriptionThis work was supported by a PhD scholarship granted by the University of Plymouth to EA (PI LMT).
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