Wednesday, August 2, 2017

Species List: 01-08-2017, Kings Beach Boat Ramp (subtidal), Caloundra, Sunshine Coast, Queensland

5 species sighted at Kings Beach Boat Ramp (subtidal), Caloundra, Sunshine Coast, Queensland, 01-08-2017

Gary and David on this single shore entry dive of 97 minutes. Maximum depth 5.5 m, 19 C water temperature, up to 8 m viz, and surge.

Reasonable visibility was enjoyed but the surge made composition difficult until we reached 4 to 5 metres depth. The Umbraculum umbraculum was a special find. Plenty of their preferred sponge species were sighted and even one that was partially consumed before we finally happened upon the slug itself.

Number of each species sighted
* Species with highest specimen count

Ardeadoris sp. 2 -2
Dermatobranchus oculus -1
* Doriprismatica atromarginata -6
Hypselodoris obscura -4
Umbraculum umbraculum -1

The entry: Kings Beach Boat Ramp

Heading out

Hypselodoris obscura


Substrate as the asparagopsis thinned out

Ardeadoris sp. 2

Doriprismatica atromarginata

Partially consumed sponge that 
Umbraculum umbraculum feed upon

Umbraculum umbraculum 
as first sighted in situ

Umbraculum umbraculum photographed 
on the return - showing rolled rhinophores extended