Tuesday, January 16, 2018

Species List: 15-01-2018, La Balsa Park, Mooloolah River, Mooloolaba, Sunshine Coast, Qld.

9 species sighted at La Balsa Park, Mooloolah River, Mooloolaba, Sunshine Coast, Qld, 15-01-2018.

A single evening shore entry dive by Julie, Terry, Gary and David of 138 minutes. Maximum depth 6.1 m, 26 C water temperature and 2 m viz.

A small amount of tidal current at the start kept the silt moving through but it kept coming so the only answer was to get down as close as possible (down & dirty is the phrase I believe) to the substrate. Not a great deal to report but it was pleasing to find Phyllodesmium undulatum again on its host gorgonian Melithaea sp. Eubranchus sp. 10 together with many of their egg masses was prevalent. Water temperature was slightly cooler than the 28 C of last time but the town water for the post dive wash down was definately well over 30 C.

Species and number thereof sighted
* Species with highest specimen count

Cratena lineata -8
* Eubranchus sp. 10 -11
Flabellina rubrolineata -5
Goniobranchus aureopurpureus -1
Goniobranchus daphne -1
Goniobranchus sp. 6 -2
Goniodoridella sp. 1 -1
Hypselodoris obscura -2
Phyllodesmium undulatum -1

Site entry

Gettin' in

 Eubranchus sp. 10

Flabellina rubrolineata

Goniobranchus sp. 6

Goniodoridella sp. 1 - with head buried

Hypselodoris obscura

Phyllodesmium undulatum

Goniobranchus Daphne - sans red spots

Goniobranchus aureopurpureus

Cratena lineata



Saturday, January 13, 2018

Species List: 11-01-2018, La Balsa Park, Mooloolah River, Mooloolaba, Sunshine Coast, Qld.

14 species sighted at La Balsa Park, Mooloolah River, Mooloolaba, Sunshine Coast, Qld, 11-01-2018.

A single shore entry dive by Julie, Gary and David of 123 minutes. Maximum depth 6.6 m, 28 C water temperature and 4 m viz.

After suiting up in the sun getting into the water unfortunately provided only minimal relief. The temperature of the  top 2 metres of water was almost 29 C only dropping to 28 C as we headed towards the bottom of the channel. Mostly just some of the usual suspects sighted however a new species for our Sunshine Coast List - Discodoris sp. 5 - was a good find. The specimen seems to have a malformed right rhinophore pocket with the actual rhinophore on that side absent. We will be monitoring the river species closely this year as last year we got the impression that the warmer summer waters caused a collapse in numbers of both species sighted and their populations.

Species and number thereof sighted
* Species with highest specimen count

Bulbaeolidia alba -1
Dendrodoris nigra -1
Flabellina rubrolineata -1
Goniobranchus daphne -7
Goniobranchus decorus -1
Goniodoridella savignyi -2
Goniodoridella sp. 1 -6
Gymnodoris sp. 9 -2
Gymnodoris sp. 10 -2
Hypselodoris obscura -4
Myja longicornis -1
Discodoris sp. 5 -1 New Species
* Pteraeolidia semperi -13
Tenellia sibogae -3


Hypselodoris obscura

Goniobranchus decorus

Pteraeolidia semperi - anterior aspect

Goniobranchus daphne

Goniodoridella savignyi

Gymnodoris sp. 10

Bulbaeolidia alba

Dendrodoris nigra

Pteraeolidia semperi - juvenile specimen

Flabellina rubrolineata

Gymnodoris sp. 9

Tenellia sibogae

Entry point with locals trying 
to cool off in the tepid river water - 
perhaps a sign is needed warning of stonefish

Discodoris sp. 5 - New species

Goniodoridella sp. 1

Substrate at base of channel marker

Substrate

Myja longicornis on hydroid stem

Tenellia sibogae



Friday, January 12, 2018

Species List: 10-01-2018, La Balsa Park, Mooloolah River, Mooloolaba, Sunshine Coast, Qld.

7 species sighted at La Balsa Park, Mooloolah River, Mooloolaba, Sunshine Coast, Qld, 10-01-2018.

A single shore entry solo dive by Gary 166 minutes. Maximum depth 6.4 m, 28 C water temperature and 5 m viz.

The tidal current was practically nil and made the dive so cruisey. Myja longicornis was found in a nice round hydroid. The 28C water temp has arrived! So nice.

Number of species sighted
* Species with highest specimen count

Atys semistriatus shell -2
Goniobranchus daphne -5
Goniodoridella sp. 1 -12
Hypselodoris obscura -4
Myja longicornis -10
* Pteraeolidia semperi -24
Tenellia sibogae -1

Pteraeolidia semperi

Pteraeolidia semperi

Substrate

Pteraeolidia semperi

Myja longicornis with egg masses

Myja longicornis

Myja longicornis

Myja longicornis food source

Myja longicornis

Substrate

Goniobranchus daphne

Pteraeolidia semperi

Goniodoridella sp. 1

Hypselodoris obscura

Atys semistriatus shell

Goniodoridella sp. 1

Goniodoridella sp. 1

Tenellia sibogae

Tenellia sibogae

Tuesday, January 9, 2018

Species List: 07-01-2018, near Coles Hole, Gneering Shoals, off Mooloolaba, Sunshine Coast, Queensland.

25 species sighted near Coles Hole, Gneering Shoals, off Mooloolaba, Sunshine Coast, Queensland 07-01-2017.

Gary and David on this excursion consisting of 1 x 80 minute and 1 x 70 minute dives in water depths from 17 m to 20 m. 12 m viz, 26 C water temp and no surge.

Wonderful boating and diving conditions greeted us on this trip out to the Gneering Shoals. The species count is down quite a bit from our last trip out here. We were some little distance off the mark and we confined ourselves to two small ridges, also only half the team was there to search. There is a great deal of hard coral cover here. The stand out finds were Halgerda aurantiomaculata, Phyllidiopsis cardinalis and two new species, a small bubble shell we are calling Haminoea sp. 10 for now and Dermatobranchus sp. 10. There is no doubt that the bubble shell is a Haminoeidae species but there is some uncertainty amongst taxonomists as to just where it should be placed at the genus level. It has a long tail and small raised thimble-like tubercles around the posterior end of the mantle. Whatever the outcome they will be our 729th and 730th species from our survey area - the Sunshine Coast of Queensland.

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

Bulbaeolidia alba 1/-
Chromodoris elisabethina 5/2
Dermatobranchus oculus 1/-
Dermatobranchus rodmani 2/2
Dermatobranchus sp. 10 -/1 New species
Dermatobranchus tuberculatus -/2
* Doriprismatica atromarginata 5/6
Elysia sp. 11 1/-
Halgerda aurantiomaculata 1/-
Haminoea sp. 10 (??) 3/- New Species
Hypselodoris whitei 1/1
Hypselodoris zephyra -/1
Jorunna sp. 3 -/1
Mariaglaja inornata -/1
Mexichromis macropus 1/1
Mexichromis trilineata 3/1
Phyllidiella pustulosa 2/1
Phyllidiopsis burni -/1
Phyllidiopsis cardinalis 1/-
Phyllodesmium magnum -/1
Thorunna daniellae 2/-
Thuridilla carlsoni 1/-
Thuridilla splendens 3/1
Tornatina sp. 1 (shell) 1/-
Verconia simplex -/1

Surface conditions

A trio of Mexichromis trilineata

Phyllidiella pustulosa

Haminoea sp. 10 - New species

Haminoea sp. 10

Haminoea sp. 10

Chromodoris elisabethina

Phyllidiopsis cardinalis

Thorunna daniellae

Phyllidiopsis burni

Phyllodesmium magnum

Doriprismatica atromarginata

Mariaglaja inornata

Dermatobranchus rodmani

Verconia simplex

Substrate

Thuridilla carlsoni

Elysia sp. 11 - slipping through 
the undergrowth

Mexichromis macropus

Halgerda aurantiomaculata

Mantle detail - Phyllidiopsis cardinalis

Tornatina sp. 1 - shell

Thuridilla splendens

Hypselodoris zephyra

Dermatobranchus sp. 10 - New species

Jorunna sp. 3

Dermatobranchus tuberculatus

Hypselodoris whitei