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Dive Report

25-09-2022 Forskali Park

Sep 27, 2022

DAY/DATE

Sunday

25/09/2022

SITE/S

Forskali Park
Currimundi reef

 

PARTICIPANTS

Julie, Terry, David

 

TYPE

Subtidal

 

MODE

Boat Dives

 

VESSEL

Rebel II

 

DIVE

1

2

SITE/S

Forskali Park

Forskali Park

SPECIES #

24

21

DURATION

73 Min

76 Min

DEPTH/RANGE

9-12 m

9-12 m

TEMP.

21 C

21 C

VIS.

12 m

12 m

SURGE

Medium

Medium

CURRENT

Nil

Nil

COMMENTS & OBSERVATIONS

Great conditions saw us heading out over the new bar, cut through by the sea, on the northern tip of Bribie Island at Caloundra. Forskali Park was the destination. This is a relatively shallow site averaging 10 m that we haven’t dived in over 12 months. Due to that shallow depth we were impacted by some surge, and one had to wait at times until the set had passed over before attempting to focus the camera on the smaller species. Diaphorodoris sp. 01 was an exciting find, only recorded by us a couple of times previously. This species has the appearance of a Chromodorididae family member but is actually of the Onchidorididae family, making it a phanerobranch where the gills are not able to fully retract into a pocket below the mantle. They feed upon encrusting bryozoans. A very small juvenile Miamira magnifica was sighted the specimen not having yet commenced development of the large midline protuberances. 114 specimens in total were recorded.

Taxonomic Diversity:
28 of the 31 species sighted were nudibranchs, 25 being dorids comprising 3 x phanerobranch (non-retractile gill), 5 x porostomes (suctorial feeders and all Phyllidiidae family) and 17x cryptobranchs (retractable gill) all bar one belonging to the Chromodorididae family. The other three nudibranchs were cladobranchs – two arminids and a single dendronotid. The other three non-nudibranch sea slug species were a cephalaspidean (headshield slug), an anaspidean (sea hare) and one sacoglossan. If diet is considered then 22 of the 31 species sighted are spongivores.

Our Historical Data:
– This excursion brings the survey number to 26 at this site since we commenced fully recording data here on 22/08/2010.
– 109 species have been recorded at this site.
– Our most common sightings at this site are: Doriprismatica atromarginata (100%), Goniobranchus splendidus (92%), Phyllidiella pustulosa (92%) and, Hypselodoris jacksoni (85%).
– The number of species seen, and their abundance is towards the higher end of the range usually encountered at this site (see graph in image gallery below).
Diaphorodoris sp. 01 deserves a special mention as it is a relatively rare find having been recorded first by us at Wobby Rocks in 2010 and then at Terry’s Delight in 2016 and Rocky in 2017.
Diversidoris aurantionodulosa, Goniodoridella savignyi, Gymnodoris sp. 10, Phyllidia guamensis and Diaphorodoris sp. 01 have not been previously recorded by us at this site.
– This site last surveyed on 28/02/2021.

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

TOTAL SPECIES SIGHTED: 31 (24/21)

 

SPECIES LIST – ALPHABETICAL

Aplysia concava -/1
Bornella anguilla 1/2
Chromodoris sp. 05 -/2
Dermatobranchus rodmani -/1
Dermatobranchus tuberculatus -/3
Diaphorodoris sp. 01 1/- +
Diversidoris aurantionodulosa 1/- +
Doriprismatica atromarginata 13/10 #100%
Glossodoris rufomarginata 3/-
Glossodoris vespa 1/1
Goniobranchus albonares 1/-
Goniobranchus daphne 1/-
Goniobranchus leopardus 2/1
Goniobranchus sp. 06 1/-
Goniobranchus splendidus 13/6 #92%
Goniodoridella savignyi 2/2 +
Gymnodoris sp. 10 1/- +
Hypselodoris jacksoni 5/5 #85%
Hypselodoris maritima 1/-
Hypselodoris obscura 3/2
Jorunna sp. 03 2/1
Mexichromis festiva 1/1
Mexichromis trilineata 1/-
Miamira magnifica (juvenile) -/1
Phyllidia guamensis 1/2 +
Phyllidia picta -/1
Phyllidia varicosa 1/1
Phyllidiella lizae 1/1
Phyllidiella pustulosa 6/4 #92%
Sagaminopteron ornatum 2/-
Thuridilla carlsoni -/1

SPECIES GROUPED BY ORDER

Nudibranchia
Bornella anguilla 1/2
Chromodoris sp. 05 -/2
Dermatobranchus rodmani -/1
Dermatobranchus tuberculatus -/3
Diaphorodoris sp. 01 1/- 
Diversidoris aurantionodulosa 1/- 
Doriprismatica atromarginata 13/10
Glossodoris rufomarginata 3/-
Glossodoris vespa 1/1
Goniobranchus albonares 1/-
Goniobranchus daphne 1/-
Goniobranchus leopardus 2/1
Goniobranchus sp. 06 1/-
Goniobranchus splendidus 13/6 
Goniodoridella savignyi 2/2 
Gymnodoris sp. 10 1/- 
Hypselodoris jacksoni 5/5 
Hypselodoris maritima 1/-
Hypselodoris obscura 3/2
Jorunna sp. 03 2/1
Mexichromis festiva 1/1
Mexichromis trilineata 1/-
Miamira magnifica (juvenile) -/1
Phyllidia guamensis 1/2 
Phyllidia picta -/1
Phyllidia varicosa 1/1
Phyllidiella lizae 1/1
Phyllidiella pustulosa 6/4

Cephalaspidea
Sagaminopteron ornatum 2/-

Sacoglossa
Thuridilla carlsoni -/1

Umbraculoidea

Pleurobranchoidea

Anaspidea
Aplysia concava -/1

DIVE IMAGES GALLERY

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