Supermoon Yields Super Low Tides
One year ago, I was at Golden Gardens beach, and was a little worried that the extreme low tide possibly meant that a tsunami was imminent. Nope, it was just the day following SUPERMOON.
Saturday
night was this year's return of Supermoon, which
means that there were super low tides
on Sunday morning. This is the prime time of the year to go tidepooling, which
is simply the activity of walking around in the tide pools that result from
low tide and viewing the creatures that are too ill-informed about Supermoon to understand the
consequences of staying in the shallow water.
There were
quite a few other humans that got the supermoon memo, and were out to scope out
the aquatic wildlife which normally hides in the seaweed.
Here is what
my friend Arielle and I encountered.
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| Seastar |
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| Sea snail (or sumthin). |
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| Jellyfish-like gelatinous blob and a shell. Either a symbiotic relationship, or maybe I just set them beside each other. Maybe they hate each other. I really don't know. |
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| Old rotten pilings. |
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| These things were living in the rotted-out pilings. |
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| Arielle helps point out the wildlife. |
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| Scale: about 10 inches. Still, this is some Planet Earth shit right here! |
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| Sea floor |
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| anemone. an enemy. |
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| Opportunist. All the birds were having a good day. |
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| mad crab. |
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| Micro-ecosystem |
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| I don't think you're ready for this jelly. |
Tidepool Mediators
There were about
10 naturalist volunteers associated with the Seattle Aquarium out on the beach answering questions, explaining things, and
reminding everyone about the fragile ecosystem we were all tromping through.
It was really cool to have them out there, educating people about the creatures and how to properly observe them. I learned a lot from this nice volunteer.
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| Thanks Seattle Aquarium volunteer naturalists! |
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| Here she was answering my question about which creatures are most fragile. Nudibranchs: sea slugs. We didn't see any. |
Anthropogenic Impacts
She told us
that this particular sea floor habitat used to be in bad shape, but has made a
significant comeback in the last nine years after being designated a preserve
area, which basically means no harvesting or any intrusive recreational
activities. That made me feel better about walking around in the sea
grass, worried that I was contributing to the demise of the very creatures I
was there to see.
She said
that the volunteers themselves debate whether the benefits of their presence
outweigh the habitat impacts. Overall an individual’s
impact is negligible, but when you consider the collective impacts of hundreds
of people, you can see their point. But given that this ecosystem is making a
healthy comeback, I feel OK about carefully traipsing about.
The day was
overcast, which greatly reduced the stress on the ecosystem, so that also helps
mitigate things. I would imagine a hot sunny day following Supermoon basically turns the tide
pools into gumbo.
Basic
guidelines for tidepooling are all pretty much common sense.
- Be gentle. Don’t stress the creatures.
- Don’t pick up anything that's attached.
- Return them to where you found them.
- Don’t be cruel.
- Don’t be an idiot.
- Etc.
Garbage or Aquatic Structure?
I kept
seeing these weird things, which I thought were some kind of gasket
(potentially for boat septic tanks. Haha). I found out (from the volunteer),
that these are actually called sand collars and are made by sea snails!
They take sand, combine it with mucus, and place their tiny eggs between
layers. They work the sand between their ‘foot’ and their shell to extrude this crazy structure (like one of those play-dough toys). The eggs are protected by it, and it disintegrates in about a week.
So tidepooling was pretty interesting and sea creatures are cool. See you next supermoon!
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