Spatial variations of bacterial community composition in sediments of the Jiaozhou Bay, China

Sun, Quan; Song, Jinming; Li, Xuegang; Yuan, Huamao; Xing, Jing Tang

doi:10.1007/s00343-020-0127-1

Cited by 5 publications

(3 citation statements)

References 50 publications

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“…The total abundance of zooplankton fluctuated greatly in the summer when A. coerulea aggregated in Jiaozhou Bay. According to long-term observations at fixed stations, the highest value of total zooplankton abundance was lower in A. coerulea bloom years than in other years [66,67]. This impact of large jellyfish on zooplankton was a critical factor in the energy transfer from primary producers to higher trophic levels, impacting the ecosystem function and fisheries recruitment [44,68,69].…”

Section: Relationship Between Large Jellyfish and The Zooplankton Com...mentioning

confidence: 99%

Distribution Patterns of Large Jellyfish and Their Effects on the Zooplankton Community in the Northern Chinese Coastal Seas during the Summer of 2021

et al. 2023

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The northern Chinese coastal seas have been observed to constitute a large jellyfish blooming hotspots during the las decades. The spatial distribution of the abundance and biomass of large jellyfish was investigated in this area through a bottom trawl survey during the summer of 2021. Nemopilema nomurai, Cyanea spp., Aurelia coerulea, Aequorea spp., and Ulmaridae (undefined sp.) were identified during the investigation. The realized niches of the three most abundant species (N. nomurai, Cyanea spp., and A. coerulea) were measured through the maximum entropy (MaxEnt) model to explain their spatial distribution patterns. Nemopilema nomurai was used as a representative species to estimate the feeding rate and feeding pressure of large jellyfish on the zooplankton. During N. nomurai blooms, the potential consumption of zooplankton by N. nomurai was enormous and even exceeded the zooplankton productivity in regions where N. nomurai assembled in this study. Reductions in absolute and relative abundance were noted in small copepods at mid-bloom and bloom stations compared to non-bloom stations. The realized niches of large jellyfish and their relationships with the zooplankton in this study would be helpful for understanding their biogeographic distribution and ecological roles in the northern Chinese coastal seas under future climate change scenarios.

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Section: Relationship Between Large Jellyfish and The Zooplankton Com...mentioning

confidence: 99%

Distribution Patterns of Large Jellyfish and Their Effects on the Zooplankton Community in the Northern Chinese Coastal Seas during the Summer of 2021

et al. 2023

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“…Jiaozhou Bay (Shandong, China) is a semi-enclosed bay with a relatively narrow mouth (2.5 km) that restricts water exchange to the Yellow Sea and limits its capacity to self-purify (Dai et al, 2007;Sun et al, 2021). It's semi-enclosed configuration results in low wave energy.…”

Section: Introductionmentioning

confidence: 99%

“…A eddy in the estuary attenuates the movement of material out of the bay (Wang et al, 2022;Zhang et al, 2017). Previous studies have investigated the diversity of culturable bacteria (Wang et al, 2016), the diversity of anaerobic bacteria (Wu et al, 2019), the nirS-type denitrifying bacterial community (Liu et al, 2020), the late winter/early spring bacterial community in the estuarine zone (Ge et al, 2021), and the spatial distribution of bacteria in autumn (Sun et al, 2021) in surface sediments of Jiaozhou Bay, but investigations of bacterial community structure between seasons and substrates are need to be complemented.…”

Section: Introductionmentioning

confidence: 99%

Spatio-temporal variation of bacterial community structure in two intertidal sediment types of Jiaozhou Bay

Chen¹,

Zhang²,

Huang³

et al. 2023

Preprint

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The intertidal sediment environment is dynamic and the biofilm bacterial community within it must constantly adjust, but an understanding of the differences in the biofilm bacterial community within sediments of different types is still relatively limited. In this study, the structure of the bacterial community in Jiaozhou Bay sediment biofilms are described using high-throughput 16S rRNA gene sequencing and the effects of temporal change and different sediment environment types are discussed. The Shannon index was significantly higher in sandy samples than in muddy samples. The co-occurrence network was tighter and more species were involved in community building in sandy samples. The principal coordinates analysis identified a significant separation between different sediment types and between stations (LiCun estuary, LC and ZhanQiao Pier, ZQ). Proteobacteria, which had a relative abundance of approximately 50% at all phylum levels, was significantly more abundant at ZQ, while Campilobacterota and Firmicutes were significantly more abundant at LC. The relative abundances of Bacteroidetes, Campilobacterota, Firmicutes, and Chloroflexi were significantly higher in the muddy samples, while Actinobacteria and Proteobacteria were higher in the sandy samples. There were different phylum-level biomarkers between sediment types at different stations. There were also different patterns of functional enrichment in biogeochemical cycles between sediment types and stations with the former having more gene families that differed significantly, highlighting their greater role in determining bacterial function. The RDA results, where each month’s samples were concentrated individually, showed reduced variation between months when the amplicon sequence variant was replaced by KEGG orthologs, presumably the temporal change had an impact on shaping the intertidal sediment bacterial community, although this was less clear at the gene family level. Random forest prediction yielded a combination of 43 family-level features that responded well to temporal change, reflecting the influence of temporal change on sediment biofilm bacteria.HighlightsSandy sediments have more bacterial species involved in community building.Different substrates from different stations have their own phylum biomarkers.Substrates have a greater influence on shaping bacterial function.Temporal changes have a greater shaping power on bacteria than on gene families.Graphic abstract

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Sediment sulfate content determines assembly processes and network stability of bacteria communities of coastal land-based shrimp aquaculture ponds

Yang²,

Zhang³

et al. 2023

Aquaculture

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Spatial variations of bacterial community composition in sediments of the Jiaozhou Bay, China

Cited by 5 publications

References 50 publications

Distribution Patterns of Large Jellyfish and Their Effects on the Zooplankton Community in the Northern Chinese Coastal Seas during the Summer of 2021

Distribution Patterns of Large Jellyfish and Their Effects on the Zooplankton Community in the Northern Chinese Coastal Seas during the Summer of 2021

Spatio-temporal variation of bacterial community structure in two intertidal sediment types of Jiaozhou Bay

Sediment sulfate content determines assembly processes and network stability of bacteria communities of coastal land-based shrimp aquaculture ponds

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