Arctic Seafloor Biodiversity and Turbulence from Video-Acoustic Mooring

Inglefield Bredning in northwest Greenland hosts a dataset quantifying seafloor conditions and biodiversity from a synchronized video camera and hydrophone deployed at 260 m depth. The data includes high-frequency images (30 fps) and audio (96 kHz) manually reviewed and automatically analyzed, revealing a turbulent environment with suspended particles and fibers. The dataset, created by Evgeny A. Podolskiy and last updated in May 2026, shows 88% of 478 detected organisms were Amphipoda, Copepoda, Hydrozoa, and Chaetognatha.

Use Cases

• Analyze biodiversity composition based on the reported counts of Amphipoda, Copepoda, Hydrozoa, and Chaetognatha
• Study temporal variability of marine snow particles based on the description of their twofold changes within hours
• Investigate tidal modulation of particle flow direction and speed mentioned in the description
• Validate automatic detection methods for marine organisms based on the combined manual and automatic analysis described

Strengths

• Includes synchronized video (30 fps) and audio (96 kHz) data, enabling multimodal analysis
• Quantifies biodiversity with specific counts: 478 detected organisms with 88% belonging to four key groups
• Captures environmental dynamics with observations of particle speed and direction modulated by tide

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data is from a single location (Inglefield Bredning fjord) and may not represent broader Arctic conditions

Provenance

Source

figshare

Collection Method

Data gathered via a portable mooring with a synchronized video camera, hydrophone, red lights, and oceanographic instruments deployed on the seafloor.

Freshness

Last updated 2026-05-06 17:22:50

Geography

Inglefield Bredning, a glacial fjord in northwest Greenland