Wednesday, July 11, 2012

Dive on concrete wreck Le Serpent

Date of observation (dd-mm-yyyy): 29 april 2012
Placemark: Scharendijke
Name observer: Koenraad Van Schuylenbergh
Observation begin time (hh:mm): 11:54
Observation end time (hh:mm): 12:40


Observation log:

Notable fauna:

During the descent in the blue between surface and 10m:
- loads of juvenile common jellyfish ("oorkwal", Aurelia aurita)
- a few sea gooseberries ("zeedruif", Pleurobrachia pileus)

At 22m, on the steel structures on the wreck, Le Serpent:
- (yellow?) sea squirt ("doorschijnende zakpijp", Ciona intestinalis)
- feather bryozoan ("gepluimde hoorcelpoiep", Bugula cf. plumosa)
- two gunnels ("botervis", Pholis gunnellus)
- a few sea gooseberries ("zeedruif", Pleurobrachia pileus)

At 22m on the seabed floor:
- nothing but whitish slimy stuff

Between 10m and surface:
- small snakelocks anemone ("weduwroos", Sagartiogeton undatus)
- mud sagartia ("slibanemoon", Sagartia troglodytes)
- juvelile plumose anemone in pink ("zeeanjelier", Metridium senile)
- common starfish (approx. 10cm, "gewone zeester", Asterias rubens)
- a few barnacles ("zeepokken", Balanus sp.)
- shore crab ("strandkrab", Carcinus maenas)
- juvenile edible crabs (7cm, "noordzeekrab", Cancer pagurus)
- opossum shrimp ("geknikte aasgarnaal", Praunus flexuosus)
- Common prawn ("steurgarmaal", Palaemon cf. elegans)
- a couple of unidentified gobies ("grondeltjes")
- bits and pieces of sea lettuce ("zeesla", Ulva sp.)
- some other unidentified seaweed near the surface