Archive for April, 2015

IB exam 2015

April 30, 2015

Year 40 Marine Scientists

As I post this, the 23 marine scientists pictured above are completing their two year multimodal experience in Marine Science by writing paper 2 of their IB examination in the caf.

Congratulations to all and thanks for many wonderful adventures!

Eek, a sea mouse!

April 29, 2015

Aeolidia papillosa

Roxi (PC 41) spotted this sea mouse / shaggy mouse nudibranch (Aeolidia papillosa) while recording data during the transect study at Weir’s Beach on 21 April 2015. One of the coolest things about this nudibranch species is that it feeds on anemones – mostly aggregating anemones (Anthopleura elegantissima) and plumose anemones (Metridium senile). In the photo above there are many aggregating anemones surrounding the sea mouse. A. papillosa is also well-known for storing undischarged stinging cells in their cerata which are likely used for defence of the slug.

Rainbow over Pedder Bay

April 28, 2015


On Friday evening (24 April 2015) while students were doing Gyotaku (post to follow!) in the floating lab there was a beautiful rainbow over the south shore of Pedder Bay.



About half an hour later the light over Pedder Bay was stunning – the water turned gold!

Found a peanut (worm)!

April 22, 2015

Stella (PC 41) found a peanut worm (Phascolosoma agassizii) this afternoon while marking limpets in the Director’s intertidal.

Phascolosoma agassizii

Its introvert is visible here as the long structure with brown transverse streaks. Also visible are dog whelk (Nucella ostrina) egg capsules above the peanut worm and several spirorbid tube worms on the surrounding rocks.  Very cool find Stella!

Transect studies 2015

April 22, 2015

Although I have many excursions and activities to report on (I have been quite negligent at blogging in favour of going out in the field and organizing photos lately), I will begin with the transect studies done by first year Marine Science students.


On Friday 17 April, F block students travelled to Race Rocks at 7:30 AM to do their transect study.


They got their noses right into the quadrats to identify and count organisms.


Then they used water levels to move up in the intertidal zone, 50 cm at a time.



They recorded all their data and will analyze it in an upcoming class.17155747946_273bd8385b_z

Weir’s Beach was the site of the other two transect studies for different reasons.  On Monday 20 April, we only had a 70 minute block for Marine Science due to the exciting announcement of the new president and head of Pearson College. It was a beautiful sunny day – perfect for a transect study!





Although filling the water tubes was a little bit challenging (see above).17201316786_cdeaf040e5_z

Tuesday 21 April was a very windy day and we were unable to get to Race Rocks (out of Pedder Bay even!) so instead C block went to Weir’s Beach to collect their data too.


Laying out the transect lines was a significant challenge.


But the students persevered to collect data on the distribution of intertidal organisms.


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See Flickr album of Transect studies 2015 for more photos of the three transect studies and a post on the Race Rocks blog for more on the F block transect study.