Posts Tagged ‘Epiactis prolifera’

East Sooke Park – March 2013

March 17, 2013

First year marine scientists travelled to East Sooke Park during block week (D block on 5 March and B block on 6 March) where they explored the intertidal zone.  We saw many amazing creatures and seaweeds, including:

Spawing Nucella

Spawning Nucella lamellosa with an interloping N. canaliculata on the far right.

Spawning Nucella2

More spawning Nucella lamellosa

Lacuna egg masses

Lacuna egg masses

Henricia pumila eggs2

The dwarf mottled blood star, Henricia pumila & eggs (the bright orange goo to the right of the black leather chiton, Katharina tunicata). I have not seen these eggs before and was very interested to learn that this species has only recently been described (2010) and it broods its eggs, unlike other Henricia species which are broadcast spawners.

Amit & Henricia

Amit with another species of Henricia.

Cerebratulus californiensis3

This nemertean Cerebratulus californiensis was crawling on the sandy beach when Alba spotted it.  Alba certainly has an eye for worms – she also spotted the nereid worm pictured below.

Nereis vexillosa

The worm (Nereis vexillosa) did show off its big black jaws (but not in this photo unfortunately).

Lucas & Solaster

Lucas found this striped sun star, Solaster stimpsoni,  which did have a commensal worm…

Solaster & Arctonoe 

Solaster stimpsoni and its commensal scale worm,  Arctonoe vittata (seen to the right of sea star’s mouth).

Kiera & Leptasterias

Kiera found a pair of six armed stars (Leptasterias hexactis).

Griffin & Dialula

And Griffin found a sea leopard, Dialula sandiegensis.


The sea leopard, Dialula sandiegensis.


The brooding anemone, Epiactis prolifera, one with no offspring and the other (on the right) with many offspring!

Decorator crab1

A well camouflaged decorator crab…

Decorator crab2

…not so well camouflaged on Marc’s hand.


Mastocarpus sp. and Ulva lactuca.


Periwinkles (Littorina sitkana) in the crack of a boulder


B block

Students had a wonderful time on Wednesday, despite the wet weather!

Steph filled her boot

It only drizzled on Tuesday, but Steph still managed to get quite wet – she filled her boots!

Here is a fairly complete species list from the two days at East Sooke Park:

Haliclona sp., Halichondria panicea, Ophlitospongia pennata

Anthopleura elegantissima, Urticina crassicornis, and other Urticina spp.

Cerbratulus californienesis

Eudistylia vancouveri, Nereis vexillosa

Mopalia muscosa, Katharina tunicata, Mytilus californiensis, Diadora aspera  (with commensal worm), Littorina sitkana, Nucella ostrina, Nucella lamellosa, Nucella canaliculata, Archidoris montereyensis, Dialula sandiegensis (and egg mass)

Pollicipes polymerus, Balanus glandula, Semibalanus cariosus, Chthamalus dalli, Idotea wosnesenskii, Hemigrapsus nudus, Hemigrapsus oregonensis, Petrolisthes sp., Decorator crab, Pagurus hirsutiusculus, Pugettia producta, Cancer productus (juvenile), Cancer oregonensis

Pycnopodia helianthoides, Pisaster ochraceus, Evasterias troschelii, Henricia pumila (with eggs), and other Henricia spp., Lepasterias hexactis

Oligocottus maculosus, Gobiesox meandricus, Gunnels (one guarding eggs)

Ulva lactuca, Enteromorpha intestinalis, Acrosiphonia coalita, Codium fragile

Hedophyllum sessile, Fucus gardeneri, Nereocystis luetkeana, Macrocystis integrifolia (drift)

Mazaella sp., Corallina vancouverensis, Bossiella sp.Lithothamnion sp., Odonthalia floccosa, Endocladia muricata, Prionitis lanceolata