Nudibranch Central

Tuesday, March 17, 2026

Species List: 17-03-2026, Route 66 and back, Mooloolah River, La Balsa Park, Buddina, Sunshine Coast, Queensland, Australia.

19 species sighted at Route 66 and back, Mooloolah River, La Balsa Park, Buddina, Sunshine Coast, Queensland, Australia. 17-03-2025.

A single shore entry dive with Gary and Mia of 159 minutes, 1.8 m, maximum depth 5.9 m, 26 C water temperature, up to 3 m viz.

The water is coming good again accept for the debris field down past Big Rock. Seeing Cratena lineata again was perfect. Cratena pawarshindeorum continues to mass. Water temp is dropping!

Species and numbers recorded:

Coryphellina lotos -13

Cratena lineata -1 !

Cratena pawarshindeorum -200+

Dendrodoris nigra -1

Dermatobranchus sp. 15 -1

Eubranchus sp. 10 -7

Goniobranchus daphne -50+

Goniobranchus sp. 13 -1

Goniobranchus variatus -4

Goniodoridella geminae -1

Goniodoridella unidonta -1

Gymnodoris sp. 10 -2

Gymnodoris sp. 22 -1

Hypselodoris obscura -4

Murphydoris cobbi -17

Tenellia sibogae -1

Tenellia sp. 70 -2

Unidentia sp. 1 -14

Unidentia sp. 14 -2

Entry

Clarity

Surface

Ready!

Substrate upon descent

Coryphellina lotos

Shoot!

Unidentia sp. 1

Goniobranchus variatus

Goniobranchus daphne

Float

Murphydoris cobbi

Hypselodoris obscura

Cratena pawarshindeorum

Unidentia sp. 1

Eubranchus sp. 10 x2

Eubranchus sp. 10

Tenellia sp. 70

Tenellia sibogae

Cratena pawarshindeorum party

Goniobranchus daphne

Tenellia sp. 70

Cratena pawarshindeorum

Murphydoris cobbi

Goniodoridella geminae

Gothum City

Goniobranchus sp. 13

Unidentia sp. 1

2 mm Goniobranchus daphne

Dendrodoris nigra juvenile

Cratena lineata!

Murphydoris cobbi

Cratena pawarshindeorum (see below)

Right. missing cerata in second group

showing anus

Substrate

Murphydoris cobbi

Goniobranchus variatus

Gymnodoris sp. 10

Hypselodoris obscura

Murphydoris cobbi

Dermatobranchus sp. 15

Goniodoridella unidonta

Gymnodoris sp. 10

Goniobranchus daphne mating

Gymnodoris sp. 22

Goniobranchus variatus

Saturday, March 14, 2026

Species List: 13-03-2026, Fish Cage to Point Rock and back, Mooloolah River, La Balsa Park, Buddina, Sunshine Coast, Queensland, Australia

13 species sighted at Fish Cage to Point Rock and back, Mooloolah River, La Balsa Park, Buddina, Sunshine Coast, Queensland, Australia. 13-03-2025.

A single solo shore entry dive with Gary of 119 minutes, 1.0 m, maximum depth 4.8 m, 27 C water temperature, 1 m+ viz.

After lots of rain it finally stopped and after it stopped the was no ambient light on the bottom. On the third day there was and this dive was the fourth. Just before 2 hours the water got near zero viz and dark, time to go. There were lots of Nudibranchs! One Murphydoris cobbi was to be seen and no Hypselodoris obscura were to be found! Great to see Dermatobranchus sp. 15 again. There was a huge debris field after Big Rock. Turn around time has come...

All in all river bottom is ok.

Species and numbers recorded:

Coryphellina lotos -45+

Cratena pawarshindeorum -150+

Dermatobranchus sp. 15 -2

Eubranchus sp. 10 -2

Goniobranchus daphne -18

Goniobranchus setoensis -1

Goniobranchus sp. 13 -1

Goniobranchus variatus -2

Gymnodoris sp. 10 -1

Murphydoris cobbi -1