Dive Report

19-09-2021 Mangrove Boardwalk – Intertidal

Sep 19, 2021

DAY/DATE

Sunday

19/09/2021

SITE/S

Mangrove Boardwalk

 

PARTICIPANTS

Julie & Terry

 

TYPE

Intertidal

 

MODE

Intertidal
searching

 

VESSEL

 

DIVE

1 Session

 

SITE/S

Mangrove Boardwalk

Golden Beach

SPECIES #

3

 

DURATION

1 Hour

 

DEPTH/RANGE

Very shallow

 

TEMP.

 

VIS.

 

SURGE

 

CURRENT

 

COMMENTS & OBSERVATIONS

Conditions were again sunny and windy. Our initial aim today was to return some species we had collected for closer examination on our previous survey at the site. However, on releasing these critters, it became obvious that our target species were present in even greater numbers than on the previous survey so we quickly fell into search mode and were rewarded with the find of a new species for us – Elysia sp. 32. In some respects it is similar to Elysia chilkensis Eliot, 1916, notably in regard to the extremely long and thin rhinophores. The original account lacks an illustration and is short on description. Kathe Jensen (SSF, 2006) suggests a specimen found in Hong Kong may be Elysia chilkensis and has posted an image on SSF. Rudman states however: “…. I suspect Eliot’s Elysia chilkensis is unidentifiable.”

Taxonomic Diversity:

Our Historical Data:
– This was our sixth survey at this site since our first on 3/11/2019.
– We have recorded 6 species at this site.
– This was our first recorded sighting of Elysia sp. 32 on the Sunshine Coast.

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

TOTAL SPECIES SIGHTED: 3

 

SPECIES LIST – ALPHABETICAL

Bakawan fusca ->15
Elysia sp. 32 -2 +++
Gymnodoris sp. 16 ->20

SPECIES GROUPED BY ORDER

Nudibranchia
Gymnodoris sp. 16 ->20

Cephalaspidea
Bakawan fusca ->15

Sacoglossa
Elysia sp. 32 -2

Umbraculoidea

Pleurobranchoidea

Anaspidea

DIVE IMAGES GALLERY

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