Wednesday, January 3, 2018

Species List: 03-01-2018, La Balsa Park, Mooloolah River, Mooloolaba, Sunshine Coast, Qld.

13 species sighted at La Balsa Park, Mooloolah River, Mooloolaba, Sunshine Coast, Qld, 03-01-2018.

A single shore entry dive by Gary and David of 126 minutes. Maximum depth 6.9 m, 27 C water temperature and 5 m viz.

The tidal current was quite strong when we realized we’d chosen the day with the highest tide of the month. This may be the reason the count is a little lower than usual. Plenty of bushy hydroids with the orange polyps that seem to be favoured by both Flabellina rubrolineata and Cratena lineata. Both species had deposited abundant spawn. Gymnodoris sp. 10 presented with a number of specimens of different internal colouration that may be related to diet. Many recreational anglers on the rock wall however we cohabited quite well. We managed to stay submerged for over two hours on the 10.5 litre tanks.

Number of species sighted
* Species with highest specimen count

Atys semistriatus (shell) ?? -1
* Cratena lineata -21
Flabellina rubrolineata -12
Goniobranchus daphne -1
Goniobranchus sp. 6 -1
Goniodoridella sp. 1 -11
Gymnodoris sp. 10 -5
Gymnodoris sp. 13 -1
Hypselodoris obscura -4
Phyllodesmium opalescens -1
Pteraeolidia semperi -1
Retusa sp. 1 (shell) -1
Spinophallus falciphallus -1

Goniodoridella sp. 1

Cratena lineata

Cratena lineata

Pteraeolidia semperi

Spinophallus falciphallus

Goniobranchus daphne

Gymnodoris sp. 10

Gymnodoris sp. 10

Gymnodoris sp. 10

Gymnodoris sp. 10

Gymnodoris sp. 13

Site entry - heavy traffic on the river

Substrate

Atys semistriatus (shell) ??

Phyllodesmium opalescens

Substrate

Spinophallus falciphallus

Hypselodoris obscura

Goniobranchus sp. 6

Retusa sp. 1 (shell) - in situ

Retusa sp. 1 (shell) - sunken spire

Retusa sp. 1 (shell)

Flabellina rubrolineata

 Cratena lineata