Heavy Winter Rain a Bounty for Bay Area’s Vernal Pools

Seasonal pools, known as vernal pools, show up each year in Fremont near the Auto Mall Parkway.

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Joe Rosato Jr./NBC Bay Area
Seasonal pools, known as vernal pools, show up each year in Fremont near the Auto Mall Parkway. The pools have their own returning critters such as vernal pool tadpole shrimp, fairy shrimp and California tiger salamanders. (March 16, 2017)
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Joe Rosato Jr./NBC Bay Area
U.S. Fish and Wildlife biologist Aidona Kakouros uses a net to try to scoop up endangered critters in a vernal pool in Fremont. (March 16, 2017)
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Joe Rosato Jr./NBC Bay Area
Adam Quade of U.S. Fish and Wildlife Service checks a net for animals in a vernal pool near Fremont’s Auto Mall Parkway. (March 16, 2017)
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Joe Rosato Jr./NBC Bay Area
Sets of markers identify each vernal pool, which only appear during the rainy season and then dry up. (March 16, 2017)
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Joe Rosato Jr./NBC Bay Area
Seasonal pools, known as vernal pools, show up each year in Fremont near the Auto Mall Parkway. The pools have their own returning critters such as vernal pool tadpole shrimp, fairy shrimp and California Tiger Salamanders. (March 16, 2017)
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Joe Rosato Jr./NBC Bay Area
A group of ecologists and volunteers from U.S. Fish and Wildlife wade across a vernal pool in Fremont to take a census of the pools’ creatures. (March 16, 2017)
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Josh Keppel/NBC Bay Area
A plastic container holds a pair of federally threatened California Tiger Salamanders collected and released in a vernal pool in Fremont. (March 16, 2017)
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