Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Hanken, James
1975
Journal
15 Apr: | Hastings Reservation, Carmel Valley Monterey Co, Calif
Yesterday afternoon between 1600-1900 hrs I collected
three vernal pools on the Blomquist property on Haystack
Hill for larvae. One pool, the first to be encountered
when walking from the pump house along the Old County
Rd, is ~20-25' across to a maximum depth of 14"/16"
~18" partially submerging the grassy vegetation.
The second, largest pool is NE of this first pool, elongate
and at least 200' long by 50-75' across. Maximum
depth appears to be at least 2-3'. The third pool farther
W along the Old County Rd, is >100' long by ~60-75'
across, to a depth of at least 2'. All three pools
fill in the rainy season with rain runoff
and usually dry up by summer. All are
used to water cattle. Three Taricha torosa larvae
were found yesterday in the first pool by dragging
a dip net through the vegetation along the bottom.
Only a few attempts were needed to find these larvae
and several Hyla regilla tadpoles. Working the
other two pools in a similar manner for over an
hour and a half found no newt larvae, but
several tadpoles ranging from ~1 cm to over 3 cm.
A repeat visit today turned up five more newt
larvae in the first pool, but none in the other two.
The newt larvae range in size from ~2.5 cm to >4 cm;
five were taken as specimens. No Ambystoma were
found. Last night between 2200-2300 hrs, I got