The microbiome of fish was unique to each individual. At least this applies to several species that live on coral reefs in the Caribbean, according to a study by scientists at the Ocean Biological Sciences Laboratory. The work was published in the journal Proceedings of the Royal Society: Biological Sciences.
In a new study, researchers documented the eating behavior of five common fish species in the Caribbean and found that they markedly differ in what and where they feed.
Researchers then used genetic sequencing and computation to identify microbiomes in the intestines of each individual fish. The analysis showed that each species of herbivorous fish has its own unique intestinal microbiome. In addition, it is different for fish within the same species.
Scientists have found that some participants in the intestinal microbiome are likely to be found in large numbers in different parts of the ocean, while others appear to be rare and local representatives of the microbe, which may have a symbiotic relationship with the fish.
Researchers suggest that these “symbionts” need a strictly defined host – in the course of their work, they found that some world organisms are unique to the intestinal biome of a certain fish species.