Antarctic Pteropod Gut Microbiome Diversity and Function

Antarctic marine samples from the Western Antarctic Peninsula and Ross Sea regions analyze the gut microbiome of the pteropod Limacina rangii. The project, led by AMD_USAPDC with international collaborators, uses archived samples from 2009–2023 and new collections to profile microbial communities via 16S rRNA sequencing and metagenomics.

Use Cases

• Analyze spatial patterns of Mollicutes abundance across the Western Antarctic Peninsula and Ross Sea using sample_location and qpcr_abundance data.
• Model temporal shifts in microbiome composition from 2009 to 2023 using collection_date and 16s_rrna_taxonomy data.
• Correlate microbial functional gene profiles from metagenomic_analysis with environmental factors like temperature or region.
• Compare microbiome diversity between Limacina rangii and co-occurring_pteropod_species using taxa_abundance data.

Strengths

• Samples span a 14-year time range from 2009 to 2023.
• Covers two distinct Antarctic regions: Western Antarctic Peninsula and Ross Sea.

Limitations

• Specific row count, column names, and sample size are unknown.
• Data freshness is unclear as the project end date is projected for 2027.

Provenance

Source

AMD_USAPDC, Palmer Antarctica LTER program, Korea Polar Research Institute.

Collection Method

High-throughput 16S rRNA gene sequencing, quantitative PCR, and metagenomic analysis of archived and newly collected pteropod samples.

Time Range

2009–2023 (archived), with recent collections.

Geography

Western Antarctic Peninsula and Ross Sea, Southern Ocean.