Dive Report

22-08-2021 Nudi 2

Aug 22, 2021

DAY/DATE

Sunday

22/08/2021

SITE/S

Nudi 2

Currimundi Reef

PARTICIPANTS

Julie, Terry, David

 

TYPE

Subtidal

 

MODE

Boat Dives

 

VESSEL

Rebel II

 

DIVE

1

2

SITE/S

Nudi 2

Nudi 2

SPECIES #

28

28

DURATION

80 Min

66 Min

DEPTH/RANGE

13-17 m

13-17 m

TEMP.

20 C

20 C

VIS.

15+ m

15+ m

SURGE

Nil

Nil

CURRENT

Nil

Nil

COMMENTS & OBSERVATIONS

Our run of good weather has continued. We crossed the Caloundra Bar with ease and headed up to Currimundi Reef. Excellent visibility, negligible surge plus an additional surveyor created circumstances for a high species count. Doto rosacea, that we recorded at Mudjimba Island two days ago, and after a long period of being unsighted, was found here as well. Glossodoris sp. 5, Ceratosoma tenue, Babakina indopacifica and Madrella ferruginosa were all exciting, not-so-common finds, and in fact, Doto rosacea, Glossodoris sp. 5, and Thuridilla carlsoni have only been sighted here once before. Although not finding any new species to add to the Sunshine Coast list the finding of so many that are not-so-common makes the excursion most interesting. Also, recording as many species on the second dive as the first is remarkable enough to comment upon, considering it was a much shorter dive.

Taxonomic Diversity:
29 of the 38 species sighted were dorids (just over 3/4 the total) comprising 4 x phanerobranchs, 8 x porostomes (all belonging to Phyllidiidae) and 17 x cryptobranchs (all belonging to Chromodorididae). The other 9 species comprised 2 x aeolids, 2 x dendronotids, 2 x arminids, 1 x cephalaspidean, 1 x sacoglossan and 1 x umbrella-shelled sea slug. If diet is considered then 29 of the 38 species sighted are spongivores.

Our Historical Data:
– This excursion brings the survey number to 21 at this site since 09/09/2012
– Last surveyed on 13/06/2021
– 105 species have been recorded here
– As well as a high species count for the excursion the data show that the total number of specimens is the highest recorded on a survey at this site, at 94 on the first dive.

Key to symbols
+++ New Species
+ First time sighted at this site
# Most commonly sighted at this site with %

TOTAL SPECIES SIGHTED: 38

 

SPECIES LIST – ALPHABETICAL

Aegires citrinus 1/-
Babakina indopacifica 1/- +
Bornella anguilla 2/5
Cadlinella ornatissima 1/1
Ceratosoma tenue -/1 +
Chromodoris elisabethina 5/3
Chromodoris kuiteri 4/6 #76%
Chromodoris magnifica -/1 +
Dermatobranchus oculus 4/1
Diversidoris sp. 03 -/1 +
Doriprismatica atromarginata 20/14 #86%
Doto rosacea 2/-
Glossodoris rufomarginata 2/11
Glossodoris sp. 05  -/1
Glossodoris vespa 1/1
Goniobranchus daphne -/1
Goniobranchus geometricus  1/-
Goniobranchus splendidus 13/-
Gymnodoris alba 1/-
Hexabranchus sanguineus 2/1
Hypselodoris bullockii  -/1
Hypselodoris jacksoni 3/6
Hypselodoris obscura -/3
Hypselodoris sagamiensis 1/-
Madrella ferruginosa -/1 +
Phyllidia elegans 1/-
Phyllidia ocellata 3/1
Phyllidia picta 2/1
Phyllidia varicosa 1/-
Phyllidiella lizae 1/1
Phyllidiella pustulosa 8/3 #86%
Phyllidiopsis burni  1/1
Phyllidiopsis cardinalis -/1 +
Pleurolidia juliae 2/1
Roboastra luteolineata 1/1
Sagaminopteron ornatum 9/7 #81%
Thuridilla carlsoni  -/1
Tylodina corticalis  1/-

SPECIES GROUPED BY ORDER

Nudibranchia
Aegires citrinus 1/-
Babakina indopacifica 1/- 
Bornella anguilla 2/5
Cadlinella ornatissima 1/1
Ceratosoma tenue -/1
Chromodoris elisabethina 5/3
Chromodoris kuiteri 4/6
Chromodoris magnifica -/1
Dermatobranchus oculus 4/1
Diversidoris sp. 03 -/1
Doriprismatica atromarginata 20/14
Doto rosacea 2/-
Glossodoris rufomarginata 2/11
Glossodoris sp. 05  -/1
Glossodoris vespa 1/1
Goniobranchus daphne -/1
Goniobranchus geometricus  1/-
Goniobranchus splendidus 13/-
Gymnodoris alba 1/-
Hexabranchus sanguineus 2/1
Hypselodoris bullockii  -/1
Hypselodoris jacksoni 3/6
Hypselodoris obscura -/3
Hypselodoris sagamiensis 1/-
Madrella ferruginosa -/1
Phyllidia elegans 1/-
Phyllidia ocellata 3/1
Phyllidia picta 2/1
Phyllidia varicosa 1/-
Phyllidiella lizae 1/1
Phyllidiella pustulosa 8/3
Phyllidiopsis burni  1/1
Phyllidiopsis cardinalis -/1 
Pleurolidia juliae 2/1
Roboastra luteolineata 1/1

Cephalaspidea
Sagaminopteron ornatum 9/7

Sacoglossa
Thuridilla carlsoni -/1

Umbraculoidea
Tylodina corticalis 1/-

Pleurobranchoidea

Anaspidea

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