June 2009 biological and acoustic data collected during a five-day transit from New Zealand to Tasmania. The dataset includes micronekton samples from depths to 1000 meters, 38 kHz echosounder logs, and concurrent acoustic-optical measurements. Data was gathered by CSIRO Marine and Atmospheric Research using a chartered commercial fishing vessel.
Use Cases
- Analyze micronekton community structure based on stratified net sampling from 1000 m to the surface.
- Map acoustic reflectivity of the Tasman Sea basin based on continuous 38 kHz echosounder logs.
- Correlate acoustic signatures with optical images of individual biota based on data from the Acoustic-Optical System (AOS).
- Compare day and night distributions of marine life based on the three sets of day/night experiments.
Strengths
- Data collection spanned a five-day voyage with 24 hours of dedicated scientific charter time.
- Sampling used three complementary instruments: MIDOC nets, a 38 kHz echosounder, and an Acoustic-Optical System.
- The MIDOC net system collected samples from five equally spaced 200-meter strata from 1000 m depth to the surface.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Freshness should be verified; last updated metadata is dated 2026-06-22 23:59:42.457901.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Samples collected with MIDOC nets fitted to commercial trawl nets, digitized echosounder logs, and an Acoustic-Optical System deployed on a demersal net.
- Time Range
- June 17-22, 2009
- Freshness
- Last updated 2026-06-22 23:59:42.457901; freshness should be verified.
- Geography
- Transit from Nelson, New Zealand to Devonport, Tasmania, Australia across the Tasman Sea.