One of the important distinctions that my marine biology students learn about is the difference between organisms that are benthic and those that are pelagic. Organisms described as benthic live attached to or associated with a surface, often but not always the sea floor. In addition to the stationary sea floor itself, benthic organisms can…
Tag: marine biology
I saw the light!
Last month I spent four days in the town of Egmont, BC. My husband and I had joined a friend on his annual excursion to the stomping grounds of his youth. We trailered the friend’s boat, Scherzo, up through Oregon and Washington and into British Columbia. We took a ferry and then ditched the car…
The Flyer comes home
Last weekend the fabled Western Flyer came home to Monterey for a brief visit. For anyone who doesn’t recognize the name, the Western Flyer is the boat that Ed Ricketts and John Steinbeck took to the Sea of Cortez in 1940. At the time of the trip she was just another purse seiner in Monterey,…
A celebration of worms
Yesterday, 30 June 2023, was deemed by the National Museum of Natural History to be International Polychaete Day, and the Smithsonian had an entire day of talks and activities for visitors to learn about the marine segmented worms. And you know me: I’m in favor of any event that draws attention to the animals that…
Exception to the rule
Ask any marine biology student to list some interesting factoids about barnacles, and one of them should be “Barnacles are benthic and sessile” by which they mean that barnacles live their entire lives glued to a single spot. This definitely describes what it means to be benthic. Barnacles are indeed stuck, for better or worse,…
A different perspective
Yesterday I had the great fortune to visit a new intertidal site. It can be accessed only by crossing private property. The property owner is my next-door neighbor, and he said I can visit any time. As I said, lucky me! The site is a little north of Pigeon Point, and at first glance the…
Rock stars
Some organisms, like some people, have a charisma that just can’t be explained. For me, the sea palm (Postelsia palmiformis) has always been one such organism. Maybe part of its charm is the fact that it’s not very common; it lives on rocky outcrops on exposed outer coasts, which aren’t the easiest places to get…
Earthwatch 2: Project ASCO
One of the reasons I selected this particular Earthwatch expedition was that it involved studies of both forest and ocean, which are my two favorite ecosystems here at home. I wanted to compare what I’m familiar with to similar habitats on the opposite coast. Regarding the rocky intertidal, I had been warned not to expect…
A most unusual sort of snail
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. The tubes can be up…
Natural Bridges
Last week we had some of the best low tides of the season, and I was grateful to spend three consecutive mornings in the intertidal. The picture-taking conditions were fantastic when I went to Natural Bridges, and I snapped away like a madwoman. Unfortunately, last week was also finals week, and it wasn’t until I…