24 species sighted at Nudibranch Day Sunreef Trench OWI NW Reef, Sunshine Coast, Queensland, Australia. 26-08-2023.
A double boat entry dive with Gary and friends of 50 minutes each. Maximum depth 19.5 m, 21 C water temperature, up to 15 m viz.
A bit of wind was predicted and under a metre of swell. Nudibranch Day was going to happen. Off we went to Trench. The anchor missed the mark by miles so we searched a flat featureless substrate. The wind picked up and we moved to the NW Reef OWI. This site was fantastic! Seeing Okenia hallucigenia on the pink bryozoan was a treat. And there was finding the large Marionia sp. 5, another level! WOW! Plus 3 New Species. Need to dive OWI NW Reef more!
Species and numbers sighted:
Aegires gardineri -2
Aegires sp. 2 -1 NEW SPECIES
Bornella anguilla -1
Cadlinella ornatissima -1
Chromodoris elisabethina -1
Chromodoris kuiteri -1
Dermatobranchus ornatus -1
Dermatobranchus sp. 20 -1 NEW SPECIES
Doriprismatica atromarginata -1
Elysia sp. 50 -1 NEW SPECIES
Goniobranchus daphne -3
Goniobranchus sp. 6 -1
Goniobranchus splendidus -1
Halgerda aurantiomaculata -1
Hypselodoris jacksoni -1
Hypselodoris obscura -3
Hypselodoris zephyra -1
Jorunna sp. 3 -1
Marionia sp. 5 -1
Okenia hallucigenia -10
Phyllidia ocellata -4
Phyllidiella pustulosa -4
Roboastra luteolineata -1
Thuridilla sp. 6 -2
Our Ride
Second dive NW Reef Old Woman Island
Hypselodoris obscura
Phyllidiella pustulosa
Dermatobranchus ornatus from first dive
Dermatobranchus ornatus from first dive
Substrate OWI NW Reef YUM
Working it...
Shoot
Hypselodoris obscura
Substrate
Jorunna sp. 3
Phyllidia ocellata
Phyllidia ocellata
Marionia sp. 5 rhinophore
Marionia sp. 5 rhinophore
Marionia sp. 5
Flatworm
Elysia sp. 50 NEW SPECIES
Elysia sp. 50 NEW SPECIES
Okenia hallucigenia
Okenia hallucigenia
Dermatobranchus sp. 20 NEW SPECIES
Aegires gardineri
Aegires gardineri
Aegires sp. 2 NEW SPECIES
Aegires sp. 2 NEW SPECIES
Aegires sp. 2 NEW SPECIES
Bornella anguilla
Cadlinella ornatissima
Chromodoris kuiteri
Dermatobranchus ornatus
Dermatobranchus ornatus
Doriprismatica atromarginata
Me
Goniobranchus splendidus
Hypselodoris zephyra
Goniobranchus sp. 6
Halgerda aurantiomaculata
Okenia hallucigenia
Marionia sp. 5
Aegires sp. 2 NEW SPECIES
Bornella anguilla
Phyllidiella pustulosa
OWI Substrate NW Reef
Roboastra luteolineata
Thuridilla sp. 6
Marionia sp. 5
