One of the many delightful animals in the rocky intertidal is the vermetid snail, Thylacodes squamigerus. Unlike their more typical gastropod relations, the vermetids don’t live in a shell, per se. Instead, they live in a calcareous tube, which forms a loose coil draped over the surface of a rock….
Tag: molluscs
In Memoriam
On the afternoon of July 31, 2020 the world of invertebrate biology and marine ecology in California lost a giant in our field. Professor Emeritus John S. Pearse died after battling cancer and the aftereffects of a stroke. John was one of the very first people I met when I…
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Emergence
Every summer, like clockwork, my big female whelk lays eggs. She is one of a pair of Kellett’s whelks (Kellettia kellettii) that I inherited from a labmate many years ago now. True whelks of the family Buccinidae are predatory or scavenging snails, and can get pretty big. The female, the…
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Plants and algae as real estate
I’ve written before about the rocky intertidal as a habitat where livable space is in short supply. Even areas of apparently bare rock prove to be, upon closer inspection, “owned” by some inhabitant or inhabitants. That cleared area in the mussel bed? Look closely, and you’ll likely find an owl…
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Making babies
Every year, in June, my big whelk lays eggs. I have a mated pair of Kellettia kellettii living in a big tub at the marine lab. I inherited them from a lab mate many years ago now, and they’ve been nice pets. They’ve lived together forever, and make babies reliably….
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Unusual numbers of the usual suspects
Today was the first time I’ve gone out on a low tide since before the whole COVID19 shelter-in-place mandates began. Looking back at my records, which I hadn’t done until today because it was much too depressing, I saw that my last time out was 22 February, when the low…
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Tidepooling with visitors
It has been a while since I’ve spent any time in the intertidal. There isn’t really any reason for this, other than a reluctance to venture out in the afternoon wind and have to fight encroaching darkness. There’s also the fact that I much prefer the morning low tides, which…
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Now you see me, now you don’t
The intertidal sculpins are delightful little fish with lots of personality. They’re really fun to watch, if you have the patience to sit still for a while and let them do their thing. A sculpin’s best defense is to not be seen, so their first instinct is to freeze where…
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A world beneath your feet
When we stop to marvel at the wonders of the natural world, we usually forget about all the life that is going on that we don’t get to see. But there is a lot happening in places we forget to look. For example, any soil is an entire ecosystem, containing…
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Boring is anything but
Be honest now. When you think of clams, what comes to mind? If you’re like most people, visions of clams steamed in white wine, garlic, and butter might dance in your head. Or perhaps clams in cioppino or a hearty chowder would be your go-to. In any case, I doubt…
