Response of bacterial community in sea cucumber Apostichopus japonicus intestine, surrounding water and sediment subjected to high-temperature stress

Luo, Wei; Wei, Chong; Chang, Yaqing; Ding, Jun

doi:10.1016/j.aquaculture.2021.736353

Cited by 27 publications

(8 citation statements)

References 60 publications

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“…Thus, the compositions tended to recover in the W and A groups in the later period. Our results are consistent with previous findings, which reveal that the microbiota could enhance its resistance to increased temperature by changing its community structure and functions, thereby maintaining a microecological balance in the A. japonicus culture pond ecosystem (Wang et al, 2021). The benthic microbial communities in sediments are likely well adapted to low pH (Braeckman et al, 2014).…”

Section: Discussionsupporting

confidence: 92%

“…The analysis of the bacterial community on the corrugated plates in all the groups revealed significant differences between the different periods of incubation. Wang et al (2021) obtained similar results in response to high temperature noting the obvious evolution of the bacterial community in the water of the A. japonicus cultured pond in summer. The bacterial community composition on Fucus vesiculosus and in the surrounding seawater are affected by warming but vary in time (Mensch et al, 2020).…”

Section: Discussionsupporting

confidence: 60%

“…OAW may directly affect marine microbial abundance, diversity, and community composition (Currie et al, 2017), thereby indirectly affecting the growth and health condition of aquatic animals (Krause et al, 2012;Sunday et al, 2016). Base on the importance of microbiota in aquaculture systems, few studies have investigated how seawater temperature or acidification might affect them (Zhang et al, 2019c;Wang et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Response of Microbial Communities on Culturing Plates of Post-settlement Sea Cucumbers to Seawater Acidification and Warming

et al. 2021

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Seawater acidification and warming have been found to affect the early life of many marine organisms, but their effects on the microbial community in the environment related to the early development stage of aquaculture species have been rarely investigated. To understand how seawater acidification and warming impact the microbial community in aquaculture systems, we designed four microcosms to monitor and characterize the microbial composition on the corrugated plates in the Apostichopus japonicus culture tanks during its post-settlement stage. High-throughput 16S rRNA sequencing revealed that the bacterial community composition varied significantly in different periods of incubation. The bacterial diversity and community composition were obviously changed by seawater acidification and warming in the early period and then tended to revert to the level of the control group. Acidification significantly increased the relative abundance of dominant families Rhodobacteraceae and Flavobacteriaceae in the early period, suggesting that microbiota could increase the abundance of predominant taxa to adapt to increased CO2 concentration and reconstruct a stable community structure. No interaction effect of both factors was observed in the combined group. Results reveal that the microbial communities on the corrugated plates in A. japonicus culture tank were affected in the early period of incubation, and could then acclimatize to the increased CO2 and temperature. This study provides new insights into the variation and adaptation responses of the microbiota in aquaculture systems to seawater acidification and warming.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 60%

Section: Introductionmentioning

confidence: 99%

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Response of Microbial Communities on Culturing Plates of Post-settlement Sea Cucumbers to Seawater Acidification and Warming

et al. 2021

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“…At the phylum level, Proteobacteria dominated in all the samples (48.82%-58.36%), and it mainly comprised gamma-, delta-, epsilon-, and alpha-proteobacteria. Similar results have been obtained for the benthic Apostichopus japonicus (Wang et al, 2021). Proteobacteria was the most abundant phylum in the water, sediments, and intestine samples in this study mainly because of the overwhelming dominance of Proteobacteria in the molecular biological classification or phenotypic classification among prokaryotes (Gupta, 2000).…”

Section: Differences In the Composition Of Bacterial Communities In D...supporting

confidence: 88%

Insights into the bacterial community compositions of peanut worm (Sipunculus nudus) and their association with the surrounding environment

et al. 2022

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The peanut worm (Sipunculus nudus) is an important economic and ecological fishery resource in China. To determine how S. nudus interacts with its culture environment, in this study, the diversity, composition, and interrelationships of bacterial communities in the intestine, coelomic fluid, and culture environment of S. nudus through high-throughput sequencing using the Illumina HiSeq sequencing platform. Alpha diversity analysis showed that the highest bacterial community richness and diversity were found in the sediments. Species annotation revealed that Proteobacteria dominated in all samples (48.92%–58.36%), and the other dominant phyla were highly variable, indicating a certain independence between the environment and the composition of the bacterial community of S. nudus. The coelomic fluid of S. nudus contained high concentrations of Bacillus and could be a source of potential probiotic bacteria for isolation and culture. Cluster and operational taxonomic unit Venn diagram analyses showed that the bacterial community composition in the intestine was more similar to that in the sediments compared with water. The predicted functional analysis of bacterial communities indicated that the functions of bacterial communities in the different surrounding environment were highly similar and involved in various aspects, such as membrane transport, amino acid metabolism, carbohydrate metabolism, and replication and repair. Our findings have important implications on the establishment of sustainable microecological regulation and management strategies for S. nudus culture and provide a reference for the development and utilization of probiotic bacteria.

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“…In recent years, as the improvement of living standards of people, the demand has been increasing for sea cucumbers, which makes the farming area of sea cucumbers have been increasing. Whereas, there are some problems in intensive aquaculture, such as the slow growth speed and high incidence of disease (Wang et al, 2021). Among the diseases of sea cucumbers, skin ulceration syndrome (SUS) is one of the most serious diseases, which is caused by the infection of Vibrio alginolyticus.…”

Section: Introductionmentioning

confidence: 99%

Multi-object detection and behavior tracking of sea cucumbers with skin ulceration syndrome based on deep learning

Ge,

Xuan,

Lou

et al. 2024

Front. Mar. Sci.

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Skin ulceration syndrome of sea cucumbers is one of the most serious diseases in intensive aquaculture, and it is the most effective way of preventing the spread of this disease to detect the abnormal behavior of sea cucumbers in time and take corresponding measures. However, the detection and tracking of multi-object is a hard problem in sea cucumber behavior analysis. To solve this problem, this paper first proposes a novel one-stage algorithm SUS-YOLOv5 for multi-object detection and tracking of sea cucumbers. The proposed SUS-YOLOv5 optimizes the maximum suppression algorithm in the overlapping region of the object detection box. Next, the SE-BiFPN feature fusion structure is proposed to enhance the transmission efficiency of feature information between deep and shallow layers of the network. Then, a MO-Tracking algorithm is proposed integrated with DeepSORT to achieve real-time multi-object tracking. Experimental results show that the mAP@0.5 and mAP@0.5:0.95 of the proposed object detector reach 95.40% and 83.80%, respectively, which are 3.30% and 4.10% higher than the original YOLOv5s. Compared with the traditional SSD, YOLOv3, and YOLOv4, the mAP of SUS-YOLOv5 is improved by 5.49%, 1.57%, and 3.76%, respectively. This research can realize the multi-object detection and tracking, which lays the foundation for the prediction of skin ulceration syndrome in sea cucumbers and has a certain practical application value for improving the intelligence level of aquaculture.

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Response of bacterial community in sea cucumber Apostichopus japonicus intestine, surrounding water and sediment subjected to high-temperature stress

Cited by 27 publications

References 60 publications

Response of Microbial Communities on Culturing Plates of Post-settlement Sea Cucumbers to Seawater Acidification and Warming

Response of Microbial Communities on Culturing Plates of Post-settlement Sea Cucumbers to Seawater Acidification and Warming

Insights into the bacterial community compositions of peanut worm (Sipunculus nudus) and their association with the surrounding environment

Multi-object detection and behavior tracking of sea cucumbers with skin ulceration syndrome based on deep learning

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