The dynamics of bacterial community in a polyculture aquaculture system of Penaeus chinensis , Rhopilema esculenta and Sinonovacula constricta

Abstract

Polyculture with Chinese shrimp Penaeus chinensis, jellyfish Rhopilema esculenta and razor clam Sinonovacula constricta (S.J.R) is a common aquaculture system in Dandong, China. Investigation on the composition and function of microbial communities and their relationship with environmental factors in aquaculture systems have crucial implications. Therefore, the sequencing of 16S rRNA gene was applied to profile the bacterial community composition of water and sediment in S.J.R polyculture system in the present study. Proteobacteria was the dominant phylum in S.J.R polyculture ponds following with Actinobacteria and Bacteroidetes in water; in contrast, more diverse phyla were detected in sediments. Water temperature, pH and dissolved oxygen were determined the bacterial community composition in the S.J.R polyculture systems. Specially, Planktomarina, PS1 clade, Candidatus Aquiluna and Fibrobacteres, which can resist the phytoplankton blooms or degrade the cellulose, were more abundant in water at the early stage of cultivation in the S.J.R polyculture system. Moreover, the functions of bacterial communities in water were mainly associated with cell communication mediated, while the functions related to basal metabolism were enriched in sediments. The findings of this study allowed us to better understand the bacterial community in the S.J.R polyculture system and accumulated data for the improvement of cultural management.

Microbial Community Structure and Its Driving Environmental Factors in Black Carp (Mylopharyngodon piceus) Aquaculture Pond

“…Dai et al [22] has reported that nutrient levels all showed significant correlation with the microbial communities in pond water by studying aquaculture ponds from different areas in China. Moreover, T, pH, and DO were also positively correlated to the changes in microbial community composition, and they are reported to have strongly influence on bacterial growth and to contribute to ecosystem processes [31,32]. To further elucidate the driving environmental factors on special microbial taxa, we computed the Pearson correlation coefficient between the dominant genera and the environmental factors.…”

An overview of jellyfish aquaculture: for food, feed, pharma and fun

“…[128][129][130] As a result, the natural sedimentation of particulate matter produced by pelagic jellyfish can be employed to favour the culture of benthic and epibenthic organisms, such as clams, 107,108 shrimps 107,108 and sea cucumbers, 86 as these mainly feed on the organic matter available in the water column or sediment, not competing with jellyfish for food or space. [130][131][132] The polyculture of the Chinese shrimp Penaeus chinensis, with the jellyfish Rhopilema esculentum, and the razor clam Sinonovacula constricta is now commonly employed for the aquaculture of these important species in China, taking advantage of jellyfish to enhance the cycling of bioavailable carbon, nitrogen and phosphorous in the productive environment. 103,107,108,132 The oliver flounder fish Paralichthys olivaceus is also sometimes added to this type of polyculture systems with positive results.…”

“…Indeed, aquaculture facilities whose effluents are rich in organic matter could benefit from the optimisation of this polyculture model using jellyfish, as this would allow farmers to improve nutrient use and increase revenues without additional production costs. 107,108,132 While further research is still required on the co-culture of jellyfish with other organisms to establish optimal culture densities for each species, as well as evaluate their interspecific interactions, its potential for large-scale aquaculture production is already well acknowledged. 78,86,103,107,131,132…”

“…[130][131][132] The polyculture of the Chinese shrimp Penaeus chinensis, with the jellyfish Rhopilema esculentum, and the razor clam Sinonovacula constricta is now commonly employed for the aquaculture of these important species in China, taking advantage of jellyfish to enhance the cycling of bioavailable carbon, nitrogen and phosphorous in the productive environment. 103,107,108,132 The oliver flounder fish Paralichthys olivaceus is also sometimes added to this type of polyculture systems with positive results. 107,108 Moreover, Ren et al 86 demonstrated that the polyculture of the sea cucumber Apostichopus japonicus with the edible jellyfish R. esculentum in rearing ponds can significantly enhance production of this commercially important holothurian, using jellyfish bio-deposits as the main source of nutrients.…”

Feasibility and compatibility of polyculture of Litopenaeus vannamei and Macrobrachium rosenbergii in the intertidal ponds

“…Proteobacteria was the most abundant and efficient colonizer in the polyculture and CON groups. In a polyculture aquaculture system of Penaeus chinensis , Rhopilema esculenta and Sinonovacula constricta , Proteobacteria was also the dominant phylum (Guan et al, 2020). Bacteroidetes and Proteobacteria were the most abundant phyla in water, sediment and crab intestine in iced fresh trash fish and formulated diet modes (Sun et al, 2020).…”