Diversity and flexibility of the bacterial communities on Cancer pagurus at different temperatures

Shell Disease Syndrome Is Associated with Reduced and Shifted Epibacterial Diversity on the Carapace of the Crustacean Cancer pagurus

“…The data from our culture-independent approach in combination with our cultivation experiments suggest that the black spot shell disease syndrome in C. pagurus is, besides other cofactors, not caused by a single pathogen, but by a microbial dysbiosis ( 17 ). A decrease in diversity could lead to a loss of functional redundancy in the microbiota.…”

“…So far, only a few studies investigated the microbiota of C. pagurus with a focus on potential pathogenic bacteria contributing to the black spot shell syndrome. Recently, we provided an overview of the epibiotic bacterial community associated with the shell of C. pagurus in different environments ( 17 ). We found that the bacterial community on C. pagurus was similar to those of other marine crustaceans, especially the American lobster.…”

“…We found that the bacterial community on C. pagurus was similar to those of other marine crustaceans, especially the American lobster. Furthermore, we identified many taxa with potential chitinolytic activity, e.g., representatives of the genera Aquimarina , Kiloniella , Thalassobius , and Leucothrix ( 17 ). These genera were also found in shell disease-affected lesions of H. americanus specimens ( 16 ).…”

High Potential for Secondary Metabolite Production of Paracoccus marcusii CP157, Isolated From the Crustacean Cancer pagurus

“…In its natural environment, CP157 occurs together with several Aquimarina spp. that are particularly abundant in diseased areas on the C. pagurus carapace ( Kraemer et al, 2020 ). Aquimarina spp.…”

“…Epibiotic microbial communities on the carapace of the arthropod Cancer pagurus (CP) were analyzed in several previous studies, reporting presence of bacteria mainly belonging to the phyla Actinobacteria, Bacteroidetes, and Proteobacteria (Quinn et al, 2012;Kraemer et al, 2020). British, Irish, and German populations of C. pagurus were found to be heavily affected by the "black spot" shell disease (Wootton et al, 2014;Kraemer et al, 2020). Characteristic symptoms are progressive melanization and degradation of the exoskeleton (Chistoserdov et al, 2012).…”