Sunday, May 26, 2019

Species List: 25-05-2019, Toilet Block, La Balsa Park, Mooloolah River, Mooloolaba, Sunshine Coast, Qld.

18 species sighted at Toilet Block, La Balsa Park, Mooloolah River, Mooloolaba, Sunshine Coast, Qld, 25-05-2019.

A single shore entry dive by Gary, Sheryl, Jenny and Sandy of 173 minutes. Maximum depth 6.2 m, 22 C water temperature and up to 4 m viz.

The water quality is still quite good and with very little current on a 1.1 m tide, 129 nudibranchs came out on display. Pteraeolidia semperi still dominates the most common category. Found from under a small rock were two Facelina sp. 3. Right in the beginning or in this case the end of our dive a rather large Bornella anguilla was found on the side of a rock. Another exciting thing that happened on this dive was the recording of a Blue-ringed the river (photo coming thanks Sandy)!

Species and number thereof sighted
* Species with highest specimen count

Atys semistriatus shell -1
Bornella anguilla -1
Bulbaeolidia alba -1
Ceratosoma tenue -1
Cratena lineata -1
Facelina sp. 11 -1
Facelina sp. 3 -2
Flabellina lotos -10
Goniobranchus daphne -4
Goniobranchus decorus -1
Goniodoridella savigny -4
Goniodoridella sp. 1 -30
Gymnodoris sp. 10 -2
Hypselodoris obscura -19
Hypselodoris zephyra -1
* Pteraeolidia semperi -45
Tenellia sibogae -7
Unidentia sp. 8 -1


Surface float and weekend traffic

Tenellia sibogae

Tenellia sibogae pair

Hypselodoris zephyra

Hypselodoris obscura feeding

Flabellina lotos


Facelina sp. 11

Goniodoridella savigny

Hypselodoris obscura

Pteraeolidia semperi large animal

Goniobranchus daphne juvenile

Goniodoridella sp. 1

Pteraeolidia semperi juvenile

Channel marker



Flabellina lotos

Facelina sp. 3 pair

Facelina sp. 3

Goniodoridella savigny

Goniobranchus daphne

Pteraeolidia semperi

Cratena lineata


Unidentia sp. 8

Bulbaeolidia alba


Gymnodoris sp. 10

Tenellia sibogae

Bornella anguilla

Bornella anguilla gills