Black Croaker (Cheilotrema saturnum): The Night Drummer of the Kelp Bed
The black croaker drums after dark in Southern California's kelp beds. How to identify Cheilotrema saturnum, where to find it, and why it sings.
Dr. Mara Ellison ·
9 articles
The black croaker drums after dark in Southern California's kelp beds. How to identify Cheilotrema saturnum, where to find it, and why it sings.
Dr. Mara Ellison ·
How the kelp perch spends its whole life inside the kelp canopy — feeding, cleaning larger fish and raising live-born young — and what canopy loss means for it.
Dr. Theo Nakamura ·
Pacific bonito turn the water beyond the kelp to chrome in warm years. Identification, behaviour, the El Niño connection, and where divers meet these speedsters.
Tom Okafor ·
Meet the striped seaperch, a live-bearing surfperch of Pacific kelp beds — and a close look at how viviparity works in a fish that births on the reef.
Dr. Theo Nakamura ·
Meet the striped surfperch (Embiotoca lateralis), the copper-striped, blue-flecked surfperch of rocky shores and kelp beds from Alaska to Baja California.
Tom Okafor ·
Meet the kelp perch, a live-bearing surfperch that hovers in the kelp canopy, sips drifting plankton and picks parasites straight off larger fish.
Tom Okafor ·
Meet the tubesnout, the matchstick-slim schooler of Pacific kelp canopies — a stickleback relative that nests on kelp and feeds half the birds.
Dr. Mara Ellison ·

Meet the bay pipefish, the Pacific coast's eelgrass mimic — a seahorse relative that hunts like a drifting grass blade from Alaska to Baja.
Dr. Theo Nakamura ·
Meet the high cockscomb, a crested prickleback living under rocks from Alaska to California — an intertidal survivor with a breeding male's comb.
Dr. Mara Ellison ·