Marine Bacterial Community Assembly in Maxwell Bay, Antarctica During Summer 2022

Surface seawater samples from Maxwell Bay, Antarctica were collected sequentially during the 2022 austral summer. Haiyu Zeng conducted 16S rRNA gene amplicon sequencing and phylogenetic null model analysis on these samples. The results quantify the shift from stochastic to deterministic assembly processes, with deterministic homogeneous selection accounting for 84.68% of assembly in February.

Use Cases

• Modeling microbial community assembly mechanisms based on quantified stochastic and deterministic process contributions.
• Analyzing correlations between bacterial genus abundances and environmental factors like nitrate drawdown.
• Studying the temporal succession of marine bacteria based on sequential sampling during a summer season.
• Investigating the role of water temperature, silicate, and nitrate concentrations as drivers of phylogenetic transitions.

Strengths

• Data includes quantified contributions of assembly processes, with deterministic homogeneous selection reported at 84.68%.
• Environmental variables collectively explained more than 50% of the variation in community structure.
• Sequential sampling provides a temporal dimension for studying summer succession.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset is 14.8 KB, indicating a very limited scope or summary data.

Provenance

Source

Haiyu Zeng

Collection Method

16S rRNA gene amplicon sequencing and phylogenetic null model analysis on sequentially collected surface seawater samples.

Time Range

2022 austral summer

Freshness

Last updated 2026-03-19 06:50:17; freshness should be verified.

Geography

Maxwell Bay, Antarctica