Seabed Survey and Seagrass Dieback Analysis in Torres Strait

Geoscience Australia survey 266 provides preliminary results from a 2004 investigation of seabed geomorphology and sedimentary processes near Turnagain Island in central Torres Strait. The survey aimed to infer effects on seagrass distribution and survival, initiated due to widespread seagrass dieback threatening local dugong and turtle populations. This work was part of a larger field-based program managed by the Reef CRC.

Use Cases

• Analyze seabed geomorphology features to infer sedimentary processes affecting seagrass survival.
• Correlate survey findings on sedimentary processes with historical seagrass dieback events near Turnagain Island.
• Use geomorphological and process data as a baseline for assessing threats to dugong and turtle populations.
• Integrate physical process findings with biological data to model principal ecosystem drivers in Torres Strait.

Strengths

• Report is part of a larger, structured field-based program managed by the Reef CRC.
• Focuses on a specific, known site of recent widespread seagrass dieback (Turnagain Island region).

Limitations

• Data is presented as a preliminary report, not a raw or structured dataset.
• Temporal coverage is limited to a single survey conducted in 2004.
• Specific sample sizes, row counts, and measurable data columns are not provided.

Provenance

Source

Geoscience Australia survey 266, published via the Australian Ocean Data Network.

Collection Method

Marine survey undertaken to investigate seabed geomorphology and sedimentary processes.

Time Range

2004

Freshness

null

Geography

Central Torres Strait, vicinity of Turnagain Island.