Sunday, September 23, 2018

Species List: 23-09-2018, Old Woman Island and The Caves, Mooloolaba, Sunshine Coast, Qld

16 species sighted at The Bommie, Old Woman Island and The Caves, Inner Gneerings, Mooloolaba, Sunshine Coast, Qld, 23-09-2018

A double boat dive by Terry and Julie consisting of 1 x 64 minute and 1 x 49 minute dives in water depths up to 12m, up to 10m viz, 20 C water temp.

Terry and Julie headed out today to partake in their other hobby; reef surveys for Reef Check Australia. Although tasked with other duties we could not resist the temptation to photograph and record any nudibranchs that we saw. Pictures were a little rushed as we focused on the allocated tasks at hand, but at least we have a record.

We were all delighted by a wonderful display from 2 mother Humpback whales with calves that were taking time out to play as we transferred between dive sites, extending our surface interval considerably.

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

Chromodoris elisabethina -/1
Chromodoris kuiteri 2/1
Doriprismatica atromarginata 2/1
Glossodoris rufomarginata 2/1
Goniobranchus leopardus -/1
Hexabranchus sanguineus -/1
Hypselodoris jacksoni 1/1
Phyllidia elegans 1/-
Phyllidia varicosa 1/-
Phyllidiella annulata 3/-
Phyllidiella pustulosa 3/-
Sagaminopteron pyschedelicum 1/-
Thuridilla splendens 1/1
*Tritoniopsis elegans 8/-
Tyrannodoris luteolineata 1/-
Verconia norba 1/-

Phyllidia elegans 

Tritoniopsis elegans

Phyllidiella pustulosa

Doriprismatica atromarginata

Sagaminopteron psychedelicum

Verconia norba

Phyllidia varicosa

Glossodoris rufomarginata

Surface Conditions - with whales

Hexabranchus sanguineus

Substrate - The Caves

Chromodoris kuiteri

Species List: 20-09-2018, La Balsa Park, Mooloolah River, Mooloolaba, Sunshine Coast, Qld.

29 species sighted at La Balsa Park, Mooloolah River, Mooloolaba, Sunshine Coast, Qld, 20-09-2018.

A single shore entry evening dive by Julie, Terry and David of 124 minutes. Maximum depth 6.7 m, 21 C water temperature and 5 m viz.

In the river we dive at the change of the tide, during the transition from flood to ebb and on some occasions that happens to coincide with nightfall. The river at night is a different place to the river in daylight. As the orange orb of the sun sinks below the western horizon, the available light underwater gradually fades and we are eventually left only with that modest cone of light produced by our torch and then only in the direction in which it is pointed. At this time some creatures disappear while others come out from their hiding places to feed. This is another cycle, the cycle of night and day produced by the sun superimposed upon the tidal cycle of ebb and flow generated by the moon, a lunar-solar rhythmic pattern. It is these changes, this mix of cycles, that draws us here in the hope of chancing upon something different, something out of the ordinary, something novel to add to our catalogue of finds. Searching in that restricted cone of light creates a degree of clarity and focus not present during the daylight when many distractions impose upon our focus.

And so the treasures were found, some infrequently sighted, such as Gymnodoris sp. 17, Lomanotus vermiformis, Marionia pustulosa, Rostanga crawfordi and Diversidoris sp. 1 and, others novel, like Pruvotfolia sp. 1 and Facelina sp. 12, all rewarding in their own right. At the end of the dive there is a conflict of choice between pushing the envelope to stay just a bit longer to find yet more and surfacing to discuss and identify the exciting finds with your companions. Working with great people makes you feel great and that too, in itself, is a wonderful reward.

Species and number thereof sighted
* Species with highest specimen count

Bulbaeolidia alba -1
Chromodoris striatella -1
Cratena lineata -2
Diversidoris sp. 1 -1
Elysia sp. 11 -1
Facellina sp. 8 -3
Facelina sp. 12 -1 (New species)
Flabellina rubrolineata -5
Godiva quadricolor -1
* Goniobranchus daphne -11
Goniodoridella savignyi -2
Goniodoridella sp. 1 -4+
Gymnodoris sp. 9 -1
Gymnodoris sp. 10 -3
Gymnodoris sp. 17 -1
Hypselodoris obscura -4
Lomanotus vermiformis -2
Marionia pustulosa -1
Pleurobranchus peronii -2
Pruvotfolia sp. 1 -1 (New species)
Pteraeolidia semperi -7
Rostanga crawfordi -1
Sakuraeolis nungunoides -8
Tenellia sibogae -2
Tenellia sp. 44 -4
Trapania brunnea -1
Unidentia sp. 1 -1
Unidentia sp. 2 -2
Unidentia sp. 5 -4

Easy in - easy out

Cratena lineata

Lomanotus vermiformis

Hypselodoris obscura

Tenellia sibogae

Pleurobranchus peronii

Sakuraeolis nungunoides

Bulbaeolidia alba 

Lomanotus vermiformis - head detail

Goniodoridella sp. 1

Be afraid - be very afraid

Facellina sp. 8

Goniobranchus daphne

Gymnodoris sp. 17

Elysia sp. 11

Sakuraeolis nungunoides - This specimen has 
been relieved of its whole body behind 
the first row of cerata

Gymnodoris sp. 10

Facelina sp. 12 - A new species

Marionia pustulosa

Rostanga crawfordi

Trapania brunnea

Diversidoris sp. 1

Tenellia sp. 44

Pruvotfolia sp. 1 - A new species

Godiva quadricolor


Friday, September 21, 2018

Species List: 20-09-2018, Fish Cage, La Balsa Park, Mooloolah River, Mooloolaba, Sunshine Coast, Qld.

14 species sighted at, Fish Cage, La Balsa Park, Mooloolah River, Mooloolaba, Sunshine Coast, Qld, 20-09-2018.

A single night shore entry dive by Gary and Jens of 119 minutes. Maximum depth 5.8 m, 21 C water temperature and up to 8 m viz.

Since the water quality has been so good Jens wanted to conduct a night dive and off we went. Finding a dozen Tenellia sp. 24 on the sandy bottom was surprising. These animals were very small and easy to see if you got low and slow. As for me I was really focusing on the sandy bottom searching small small nudibranchs. I was rewarded with a new species of Sagaminopteron pohnpei, our 761st species. Another interesting fact of the river lately is finding Okenia liklik, nearly all accounts of divers in the river have seen this species. And finding another Mnestia sp. with it's banded shell made for another successful excursion in the river.

Species and number thereof sighted
* Species with highest specimen count

Atys sp. ? shell -1
Cratena simba -1
Facelina sp. 8 -1
Flabellina rubrolineata -4
Goniobranchus daphne -4
Goniodoridella savignyi -5
Goniodoridella sp. 1 -10
Hypselodoris obscura -3
Mnestia sp. 1 -1
Okenia liklik -1
Pteraeolidia semperi -1
Sagaminopteron pohnpei -1 NEW SPECIES
* Tenellia sp. 24 -12
Unidentia sp. 1 -3

Entry point

Jens about to go

Goniobranchus daphne

Substrate

Hypselodoris obscura

Cratena simba

Unidentia sp. 1

Unidentia sp. 1

Tenellia sp. 24

Tenellia sp. 24

Tenellia sp. 24 scale to finger

Okenia liklik

Tenellia sp. 24 pair

Atys sp. shell

Jen searching

Fish Cage - getting dark

Flabellina rubrolineata

Goniobranchus daphne

Goniodoridella savignyi pair

Sagaminopteron pohnpei  NEW SPECIES

Sagaminopteron pohnpei  NEW SPECIES

Tenellia sp. 24

Mnestia sp. 1

Goniodoridella sp. 1

Facelina sp. 8

Pteraeolidia semperi juvenile