IMOS NRS: Zooplankton Abundance at Nine Australian Coastal Stations

Nine stations around the Australian coastline are sampled monthly for zooplankton, with three samples taken each month. The dataset includes estimates for community composition, biomass, and size spectrum, with data from Port Hacking station available from 2002. It is collected by the Integrated Marine Observing System (IMOS) National Reference Stations and made available via the Australian Ocean Data Network.

Use Cases

• Analyzing long-term zooplankton community composition trends based on monthly sampling.
• Modeling biomass changes in coastal ecosystems based on dry weight estimates.
• Studying the size structure of plankton communities using zooscan analysis data.
• Comparing historical and contemporary sampling methods, such as the net used at Port Hacking from 2002-2009.

Strengths

• Spatial coverage includes nine regularly sampled stations around the Australian coastline.
• Sampling is conducted monthly (or 3-monthly at two stations), providing a temporal series.
• Data products account for changes in taxonomic resolution and analyst training over time.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• The taxonomic resolution has changed over time, requiring users to consult change log tables.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Integrated Marine Observing System (IMOS) National Mooring Network - National Reference Stations.

Collection Method

Samples collected monthly using a drop net with a 60 cm diameter and 100 micron mesh, designed to sample on the descent.

Time Range

Time series data includes samples from Port Hacking from 2002; ongoing monthly sampling.

Freshness

Last updated 2026-04-18 19:59:48.254692; freshness should be verified.

Geography

Coastal waters around Australia, specifically at nine National Reference Station sites.