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Take Two

Beachcombing: Loss of isopods raises questions about beach health (photos)

By Take Two Staff
Published Aug 2, 2013
David Hubbard, a research specialist at UCSB's Marine Science Institute, looks for crustaceans called Isopods on a Malibu beach on July 24. Hubbard and a group of scientists have found that the Isopod population has disappeared from 60 percent of Southern California beaches.
David Hubbard, a research specialist at UCSB's Marine Science Institute, looks for crustaceans called Isopods on a Malibu beach on July 24. Hubbard and a group of scientists have found that the Isopod population has disappeared from 60 percent of Southern California beaches.
(
Maya Sugarman/KPCC
)
Isopods crawl on Hubbard's hand. Although they look like insects, they're crustaceans that burrow into the beach sand and are nocturnal.
Isopods crawl on Hubbard's hand. Although they look like insects, they're crustaceans that burrow into the beach sand and are nocturnal.
(
Maya Sugarman/KPCC
)
UCSB researcher David Hubbard sifts through Malibu beach sand looking for Isopods. Scientists say the shrinking of their population is a warning sign for the health of Southern California beaches.
UCSB researcher David Hubbard sifts through Malibu beach sand looking for Isopods. Scientists say the shrinking of their population is a warning sign for the health of Southern California beaches.
(
Maya Sugarman/KPCC
)
Hubbard uses a sifter to look for Isopods. The crustaceans like to burrow in semi-moist sand, similar to the consistency of brown sugar.
Hubbard uses a sifter to look for Isopods. The crustaceans like to burrow in semi-moist sand, similar to the consistency of brown sugar.
(
Maya Sugarman/KPCC
)
Nick Schooler, a UCSB graduate student in marine science, takes down tide measurements of a Malibu beach on July 24. Once a month, UCSB researchers spend three days tracking the crustaceans in the area.
Nick Schooler, a UCSB graduate student in marine science, takes down tide measurements of a Malibu beach on July 24. Once a month, UCSB researchers spend three days tracking the crustaceans in the area.
(
Maya Sugarman/KPCC
)
Both Beach Hoppers and Isopods burrow into the sand. During the summer they burrow one foot or more into the beach, and up to three feet in the winter.
Both Beach Hoppers and Isopods burrow into the sand. During the summer they burrow one foot or more into the beach, and up to three feet in the winter.
(
Maya Sugarman/KPCC
)
UCSB graduate student Nick Schooler measures wave frequency at a Malibu beach.
UCSB graduate student Nick Schooler measures wave frequency at a Malibu beach.
(
Maya Sugarman/KPCC
)
David Hubbard holds a Beach Hopper. Crustaceans like Isopods break down kelp, and are a source of food for shorebirds.
David Hubbard holds a Beach Hopper. Crustaceans like Isopods break down kelp, and are a source of food for shorebirds.
(
Maya Sugarman/KPCC
)

Take Two translates the day’s headlines for Southern California, making sense of the news and cultural events that affect our lives. Produced by Southern California Public Radio and broadcast from October 2012 – June 2021. Hosted by A Martinez.

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Beachcombing: Loss of isopods raises questions about beach health (photos)

You remember pill bug, those little roly-polys that curled up in the palm of your hand as a kid.

Their scientific name is isopods and they have cousins that burrow into the sand along the coast, but those isopods have disappeared from a number of southern California's beaches.

In the latest installment of our Beachcombing series, KPCC's Molly Peterson explores why we're losing isopods, and what it might mean for the health of our coast.