Some notes on crayfish activity shortly after medium-intensity burn

Small, assumed ephemeral waterbodies exposed by planned burn in east Corbould reserve.

Lowermost pool (with white dead branch) was dry, with fresh crayfish excavations (probably Cherax spp.) on the downstream end of pond (water sits there longer?). Much smaller excavations were in the middle of the pool. Tenuibranchiurus glypticus perhaps?

Next pool up was also poorly vegetated and only had a couple of inconspicuous burrows.

Another pool, also dry, further upstream had the most burnt veg and similar results. Like the first one, some burrows were orientated closely together.

Third pool was well vegetated and still held water-no burrows found here. Although sometimes inconspicuous, burrows were relatively easy to locate and it is expected that if there were burrows here they would have been detectable.

Posted on 02 August, 2022 11:26 by olliescully1 olliescully1