Australian Aquatic Biological

Australian aquatic biodiversity research and consultancy

Photographing Euastacus hystricosus

The upper Brisbane River

The upper Brisbane River

Euastacus hystricosus is Queensland’s largest giant spiny crayfish species. It is a crayfish covered in numerous sharp spines that grows to a huge size. Found in the upper reaches of the Mary and Brisbane rivers, the ACP has been researching this amazing species.

Much of the time we are just  weighing, measuring and then photographing and releasing freshwater crayfish but we need to catch the critters before we can do so.

Paul scoops a small crayfish from the stream

Paul scoops a small crayfish from the stream

 

Paul and Rob photographing small crayfish along the stream edge

Paul and Rob photographing small crayfish along the stream edge

 

E. hystricosus blend in well with both the stream bed and surrounding forest floor

E. hystricosus blend in well with both the stream bed and surrounding forest floor

 

Rob with a smaller E. hystricosus

Rob with a smaller E. hystricosus

 

Paul with a larger E. hystricosus

Paul with a larger E. hystricosus

 

Paul and I camped that night in the forest so we could survey the streams at night to gather biological information. E. urospinosus became more active as the night deepened by E. hystricosus became less active.

Paul and I camped that night in the forest so we could survey the streams at night to gather biological information. E. urospinosus became more active as the night deepened but E. hystricosus became less active.

 

A chunk of fish tied to a string attracted dozens of crayfish

A chunk of fish tied to a string attracted dozens of crayfish

 

E. hystricosus love fish and are reluctant to let it go

E. hystricosus love fish and are reluctant to let it go

 

Euastacus hystricosus

Paul with an Euastacus hystricosus

 

Research & Aquaculture Director for Australian Aquatic Biological P/L
Team Leader for The Australian Crayfish Project
Director of Mid West Yabby & Fish Traders and RBM Aquaculture
Secretary of NSW Aquaculture Assoc Inc
Research Associate for Carnegie Museum of Natural History
Honorary Research Fellow, Queensland Museum

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