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Different geographical environment can affect the fatty acid compositions of the Red Swamp Crayfish (Procambarus clarkii) through the intestinal flora
Summary
Not relevant to microplastics — this study examines how geographic environment and gut microbiota influence the fatty acid composition and nutritional quality of red swamp crayfish (Procambarus clarkii).
Abstract Intestinal flora plays an important role in promoting digestion, metabolism and immunity. It is an important basis for assessing the health and nutritional content of Procambarus clarkii . Fatty acids are also important indicators for assessing the P.clarkii . They are strongly related to environmental and genetic factors. However, whether environmental factors or genetic factors have a greater impact on the health and nutrition of crayfish is currently a hot topic, and it is unclear whether there is a link between the intestinal flora and the distribution of fatty acid (FA) compositions of red swamp crayfish.This paper focuses on the influence of different environments on the fatty acids in muscles of crayfish and the possible existence between gut microbiota and fatty acids. Therefore, we compared and clustered fatty acid compositions of crayfish populations in five different geographical locations to determine the relationship between geographical location and fatty acid compositions. We also characterized the gut microbial communities of these crayfishes using 16S rRNA high-throughput gene sequencing. We found that there were significant differences in FA compositions of crayfish populations in different geographical locations. Similar trends were observed in the gut microbiome, which also varied significantly according to geographic phenotypes. In addition, the relationship between fatty acid compositions and intestinal microbes was revealed by alpha diversity analysis and cluster analysis. However, further studies of the interactions between the P.clarkii gut microbiome and biochemical composition are needed, which will ultimately reveal the complexity of microbial ecosystems with potential applications in aquaculture and species conservation.
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