Animal Census and more…

Winds have been on a downward trend since Monday but since noon today have picked up to 35-40 knots. Barometric power dipped to a low of 1010 hPa Wednesday evening. We’ve had heavy fog until yesterday and today.

Few boats in the reserve this week (I suspect due to fog).

Two whale watchers today and 2 recreational fishing boats passed through the reserve today.

Animal Census (for Wednesday, 16 July):

256 Gulls
9 Pigeon guillemots*
2 Elephant seals
13 Steller sea lions
1 Double-breasted cormorant
9 Black oystercatchers
6 Canada geese
38 Black turnstones (Arenaria melanocephala)
2 Ruddy turnstones (Arenaria interpres)

*I only saw nine guillemots on Wednesday, 5 of which were flying away from the island. I don’t know the reason for the low number but Thursday I counted over 80 again.

I have not seen Cheeky since Tuesday, however, a new (very plump) female elephant seal arrived Wednesday afternoon. After female was on the jetty at ~1800h but seems to have swam away again. Chunk is still here. The river otters made another appearance tonight. Running in the same direction the adult led the two young otters with a gull chick in its mouth. Before going under the diesel holding tank the two juveniles started away at the chick. the Canada geese arrived Monday afternoon. Until today, there was a group of 5 that moved around together and an additional single goose that was seemed on its own. Today I counted seven and they were all together.

Monday morning I lost ethernet connection in the main residence. Jonathan came out Tuesday to have a look and he returned with two electricians on Thursday to fix the issue. Filled the batteries yesterday while they were here and got a tutorial on the Nikon camera.

Aurelia aurita: Moon Jellyfish–The Race Rocks Taxonomy

ESMoon-jelly

Moon Jellyfish Aurelia aurita photos by Eric Schauff

ESMoon-jelly2

From the log February 05, 2002
We counted 7 Moon Jellyfish( Aurelia aurita) floating amid the logs and debris in the tide wash east side of the boat dock.Most of them were 15-16 cm wide. In the sea they looked bluish -white and translucent.Unfortunately they were somewhat battered as they washed towards shore and Garry said that they were on their last legs so to speak.
Mike and Carol Slater.

From the log February 05, 2002
There were 19 Moon Jellyfish along the east side of the dock this morning and we saw quite a few more just off shore when we left in the boat.
Mike and Carol Slater.


Scientific classification:

Kingdom: Animalia
Phylum: Cnidaria
Class: Scyphozoa
Order: Semaeostomeae
Family: Ulmaridae
Genus: Aurelia
Species: A. aurita

Aurelia aurita
Linnaeus, 1758

Other Members of the Phylum Cnidaria at Race Rocks.

taxonomyiconReturn to the Race Rocks Taxonomy
and Image File
pearsonlogo2_f2The Race Rocks taxonomy is a collaborative venture originally started with the Biology and Environmental Systems students of Lester Pearson College UWC. It now also has contributions added by Faculty, Staff, Volunteers and Observers on the remote control webcams.