Wednesday, May 14, 2014

for the love of marine invertebrates

Our first full day in rocky point was today. For me it was a very fun day because I love marine invertebrates! We woke up early to explore the rocky tide pools of the intertidal zone. Tide pools contain a wealth of diverse marine organisms. These organisms have specifically evolved to life in an environment of harsh uncertainty. As a result they have developed behaviors and adaptations to ensure their survival. As the water recedes during low tide organisms are subject to extreme heat, predation, and potential desiccation. During our time exploring the tide pools and collecting specimens we observed some interesting behaviors. Many sessile animals like sea anemones and bivalves draw themselves inward sealing themselves off from the external environment until conditions improve. Motile organisms such as brittle stars, crabs, chitons, and octopus all move deep into the rocks to hide from the sun.

I really enjoyed searching for these animals and observing how they handle the challenges of living in the rock intertidal zone! I can't wait for tomorrow!

Hillary

p.s. photo credit goes to KG

1 comment:

  1. Great work Hillary! For the viewing audience, those critters on the bottom of the rock are chitons, a type of mollusc related to snails. The green "snot" looking stringy thing is a segmented worm.

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