Here is something I wrote for the
Galveston Bay Area Master Naturalist newsletter.
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Texas Parks and Wildlife Department photo of a river otter. |
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Spotting a river otter in the wild is something special.
“I began paddling the bayou in my youth in 1972, so when
my first otter sighting occurred in 1995, it meant a great deal to me,” Kramer
wrote in reply to GBAC-MN email questions.
“I happened to be near the water’s edge throwing a cast
net when I heard a call/vocalization that I didn't recognize. I lay on my belly
at the edge of the water waiting for the animals to swim past — a mother with
three pups!
“I was so moved that I wrote an article in the ABNC
newsletter about it,” he said. “They are simply the most charismatic animals on
the refuge.”
ABNC stewardship coordinator Kramer, who is on the water
a lot, said he sees river otters eight to 10 times a year. He was paddling in
his kayak for his last sighting.
Marissa Sipocz, who has been leading wetland restoration
at
Sheldon Lake State Park for the past 13 years, was excited to see a river
otter a few months ago crossing Park Road 138. She has seen otters only two or
three times previously.
“I was totally shocked when I watched him hop across the
road, thinking: ‘Oh my goodness, that's an otter! How cool! So adorable!!’
"
Sipocz and Kramer believe the sightings indicate a
healthy habitat with abundant food and a quiet place to relax and raise their
young.
Texas Parks and Wildlife Department’s river otter
specialist agrees. Gary Calkins, district leader for Piney Woods ecological area,
has been on river otter watch for 12 years and collecting sightings the past
nine years for a study.
Our river otters (Lutra
canadensis) are indicator species and opportunistic hunters, he said. They
eat fish but especially like crawfish, frogs, tadpoles and blue crabs, which
are sensitive to pollutants. They often feed at dawn or dusk.
River otters generally live in hollows near water. They
can live eight to nine years in the wild. There are one to six pups in a litter.
Their slender bodies with short necks and legs covered with
glossy dark brown fur help make them acrobats in the water. They can hold their
breath up to eight minutes underwater. Members of the weasel family, they weigh
11 to 30 pounds.
They live in fresh water but will hunt in brackish water
and along the coast. Calkins notes that sightings have been reported at the
Kemah Boardwalk.
River otters make an impression when spotted because while
they are secretive, they can appear playful and will interact with people up to
a point, Calkins said.
The good news is that TPWD research shows the web-footed
mammals have been spreading rapidly back into their historical range in Central
Texas since the 1990s. The numbers had been down due to trapping and habitat
loss.
Calkins has recorded sightings in the San Antonio and
Wichita Falls areas, well beyond the Eastern corner of the state where many of
the state’s otters reside.
However Calkins says it is impossible to get accurate
population numbers because otters are elusive. Biologists collect information
from legal trappers, indicator surveys, road kill and signs of tracks and
scatter.
Personally Calkins has seen only four rivers otters in
the wild. His first sighting was in the Jasper area. “I was pretty jazzed,” he
said.
They bite, warns Schmalz, WCT executive director.
This year two young ones have arrived at WCT for
rehabilitation. Each case is special, she said.
One of the river otters was found by someone who kept it for
eight weeks before taking it to WCT. “At that point he was very underweight and
severely malnourished and in poor condition overall. His case was a testament
to why we ask people to bring animals as soon as they can for the best care
possible,” Schmalz said.
The second one was found orphaned on a beach by a
Good Samaritan who took it to the center..
Both animals went through WCT rehab and were transferred
to a rehabilitator near Tyler who will care for them about a year before
releasing them into a habitat on her property.
River otters are little contradictions, Schmalz said.
“They are very intelligent, playful, and social; all
qualities humans possess. So it's natural for those of us working with them to
respond to those qualities,” Schmalz said. “However otters are by no means
tame.
“Mother otters discipline their young by nipping at
them and siblings nip at each other when playing. So when
handling them they have a real tendency to bite a lot. And they have very sharp
teeth and strong jaws.
“They have these adorable faces and personalities, but
their demeanor and energy level make them one of our more challenging
patients. But of course, our staff and dedicated volunteers love every
minute.”