Tasmanian Giant Kelp Harvest Tonnages for 1970-71

Harvest returns detail the tonnage of Macrocystis pyrifera (giant kelp) collected by Alginates (Australia) P/L from specific sites on Tasmania's east coast. Data is summed for individual sites across the two-year period of 1970-71. The records were originally lodged with the Tasmanian Lands Department as a condition of the harvesting license.

Use Cases

• Analyze spatial distribution of harvest tonnage across specific coastal sites.
• Calculate total biomass extracted per site over the 1970-71 period.
• Assess harvest intensity based on trip length data for different locations.

Strengths

• Data covers a specific two-year period (1970-71) for detailed temporal analysis.
• Includes spatial information (site location) and operational metrics (trip length).

Limitations

• Limited temporal scope, with only two years of site-specific data available from a longer harvesting period (1964-1973).
• Unknown sample size or total number of recorded harvest events.

Provenance

Source

Australian Ocean Data Network, sourced from Tasmanian Lands Department harvest returns.

Collection Method

Data was submitted by Alginates (Australia) P/L as a mandatory condition of their harvesting license.

Time Range

1970-1971

Freshness

Historical dataset; last metadata update was 2026-04-04.

Geography

East coast of Tasmania, Australia, at specific harvest sites.