Stella (PC 41) found a peanut worm (Phascolosoma agassizii) this afternoon while marking limpets in the Director’s intertidal.
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!
It was a sunny but windy afternoon yesterday in the intertidal zone with D block. We saw a few things of note…
At least Ehsan & Ivan were taking note!
A dead California sea cucumber (Parastichopus californicus). Very curious about the circumstances surrounding its arrival in the intertidal zone.
And we saw lots of eggs – several yellow whelk egg capsules and green fish eggs wedged into a crack in the rock.
We also collected some hairy hermit crabs for Tom’s extended essay work on shell selection in hermit crabs.
Pearson College Marine Science 