Tuesday, June 21, 2016

Species List: ex-HMAS Brisbane wreck, Mooloolaba, Sunshine Coast, Queensland, 18-06-2016

6 species sighted mainly on the top deck from the bow gun to the bow.

Gary on this excursion consisting of 1 x 64 minute and 1 x 60 minute dives in water depths from 15 m to 19 m. 15 m viz, 22 C water temp and plenty of surge.

The vis was pretty good to what it was and the surge was quite challenging when searching for and photographing very small nudibranchs on a flat substrate. The highlight was finding Diacavolinia longirostris (shell 5 mm). This is the first time in 13 years we have found this order Thecosomata.

Number of each species sighted: 1st dive/2nd dive
* Species with highest specimen count

Diacavolinia longirostris (shell 5 mm) 1 New Species
* Hypselodoris obscura 1/1
* Hypselodoris sp. 2 1/1
Hypselodoris whitei 1
Hypselodoris zephyra 1
Thorunna daniellae 1

The substrate - the forward deck

Diacavolinia longirostris (shell 5 mm) New Species

Diacavolinia longirostris

Diacavolinia longirostris

Hypselodoris whitei

Hypselodoris zephyra

Hypselodoris obscura

Thorunna daniellae

Hypselodoris sp. 2