Australian Aquatic Biological

Australian aquatic biodiversity research and consultancy

Engaeus sericatus from south western Victoria

 

Engaeus sericatus from the Gellibrand River drainage

Engaeus sericatus from the Gellibrand River drainage

Engaeus sericatus is a small burrowing crayfish from the lowland regions of western and south western Victoria. We found most of our specimens along the edge of the rivers and streams or in small seepages and creeks. As a species it seemed locally abundant at most sites we surveyed, the sites where areas that water seemed permanent and all the burrows had water filled chambers at the bottom. Burrows did not seem to extend far away from the streams into the forest floor and most burrows seemed relatively rudimentary with only 1 or 2 surface entrances down only 500 mm to small water filled chamber.

Small roadside drains/seepages had very high populations of bothe Engaeus sericatus and Geocharax gracilis

Small roadside drains/seepages had very high populations of both Engaeus sericatus and Geocharax gracilis

Engaeus sericatus is found in sympatry with a number of different species. We found Geocharax crayfish within 50 mm and Euastacus bispinosus, Euastacus yarraensis, Cherax albidus and Engaeus fultoni all within 1 metre of the species. Commonly we found that Geocharax crayfish also seemed to prefer the same habitat and at many sites we found them both together at relatively high densities of 2-3/m2 for each species.

Geocharax gracilis from the lower Gellibrand River area found living beside Engaeus sericatus

Geocharax gracilis from the lower Gellibrand River area found living beside Engaeus sericatus

 

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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