Hermit Crab Shell Occupancy Across Depths in Eastern Tasmania

Sediment cores from 10 and 20 meters depth compare sediment size structure at Dennes Point, SE Tasmania. The dataset examines utilization of the introduced New Zealand screwshell by native hermit crabs across four depths (10, 20, 30, 40m). It was published by the Australian Ocean Data Network and last updated in April 2026.

Use Cases

• Model depth-related variance in shell occupancy rates using the 10m, 20m, 30m, and 40m depth categories.
• Analyze correlation between sediment size structure data from cores and hermit crab occupancy levels.
• Compare shell preference of Paguristes tuberculatus between sediment from 10m and 20m depths from the preference trial.

Strengths

• Data collected across four distinct depth levels (10, 20, 30, 40m) at a single site.
• Includes comparative sediment size structure analysis from cores at two depths.
• Combines field observation of shell occupancy with a controlled sediment preference trial.

Limitations

• Sample size and row count are unknown.
• Geographic scope is limited to a single site in eastern Tasmania.
• Column names and specific data structure are not provided.

Provenance

Source

Australian Ocean Data Network

Collection Method

Field sampling via sediment cores and a controlled laboratory preference trial.

Time Range

null

Freshness

Last updated in April 2026.

Geography

Dennes Point, southeastern Tasmania.