Diets of Sympatric Pelagic Sharks in Southern Australia, 2007-2011

Southern Australia's gulf and shelf ecosystems host a study of predator-prey dynamics among five shark species. Parks Australia provides data from 417 shark stomachs collected from fishery catches between 2007 and 2011, including bronze whalers, shortfin makos, dusky sharks, smooth hammerheads, and common threshers. Findings discuss dietary diversity, overlap, and specialization to improve ecological models for the region.

Use Cases

• Compare dietary diversity and overlap among shark species based on stomach content analysis.
• Model ecological roles of top predators in gulf and shelf habitats based on consumption of cephalopods, teleosts, and crustaceans.
• Investigate feeding specialization in migratory species like the common thresher and shortfin mako.
• Inform ecosystem models for southern Australia's unique bioregion based on quantitative diet data.

Strengths

• Contains data from 417 shark stomachs, providing a substantial sample size.
• Covers five distinct shark species: 250 bronze whalers, 52 shortfin makos, 49 dusky sharks, 39 smooth hammerheads, and 27 common threshers.
• Data collection spans a defined time range from 2007 to 2011.
• Study represents the first quantitative investigation of sympatric pelagic shark diets in this region.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect temporal and geographic bias inherent to fishery-dependent sampling between 2007 and 2011.

Provenance

Source

Parks Australia, referencing a source publication.

Collection Method

Stomach content analysis of sharks collected from fishery catches.

Time Range

2007 to 2011

Freshness

Last updated 2026-07-15 02:52:45.951584; freshness should be verified.

Geography

Gulf and shelf waters off southern Australia.