Wednesday, June 10, 2020

Species List: 09-06-2020, Toilet Block, La Balsa Park, Mooloolah River, Mooloolaba, Qld.

16 species sighted at Toilet Block, La Balsa Park, Mooloolah River, Mooloolaba, Qld. 09-06-2020.

A single shore entry dive by Gary and Harvey of 240 minutes. Maximum depth 6.4 m, 20 C water temperature up to 15 m viz.

With the river water being so clean we thought another visit was in order. Two Costasiella species were found in the first 15 minutes. Goniodoridella sp. 1 was everywhere! It was quite nice to see some Anteaeolidiella cacaotica, Baeolidia australis and Spurilla braziliana with egg masses from under rocks. I also found 8 Christmas tree hydroids but after inspection only one Myja hyotan, a great find of this newly described species and from our river!. I was pleasantly surprised to find a very small juvenile Bulbaeolidia alba with its peculiar way of crawling along the substrate. And finally after quite a while Discodoris lilacina was found from under a rock!

Species and number thereof sighted
* Species with highest specimen count

Anteaeolidiella cacaotica -4
Baeolidia australis -1
Bulbaeolidia alba -1
Costasiella sp. 2 -1
Costasiella sp. 4 -1
Cratena lineata -32
Discodoris lilacina -1
Flabellina lotos -78
Goniodoridella savignyi -11
* Goniodoridella sp. 1 -187
Goniodoridella sp. 5 -1
Goniodoridella sp. 7 -2
Liloa brevis shell -1
Myja hyotan -1
Spurilla braziliana -5
Unidentia sp. 4 -1

The site

Ready to go

Costasiella sp. 2

Flabellina lotos

Costasiella sp. 4

Substrate

Substrate

Liloa brevis

Cratena lineata

Discodoris lilacina

Goniodoridella sp. 1

Channel marker

Spurilla braziliana

Spurilla braziliana

Spurilla braziliana

Cratena lineata

Flabellina lotos

Flabellina lotos

Anteaeolidiella cacaotica

Shoot!

Flatworm

Bulbaeolidia alba juvenile 2 mm

Anteaeolidiella cacaotica

Substrate

Baeolidia australis

Flabellina lotos

Goniodoridella savignyi

Goniodoridella sp. 1

Myja hyotan

Myja hyotan

Myja hyotan

Goniodoridella sp. 5

Flabellina lotos

Goniodoridella sp. 7

Anteaeolidiella cacaotica x3

Goniodoridella savignyi

Cratena lineata

Anteaeolidiella cacaotica

Anteaeolidiella cacaotica

Unidentia sp. 4

Discodoris lilacina rhinophores