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Biodiversity Blog

 
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Featured Species: Slenderhead Darter (Percina phoxocephala)

Featured Species: Slenderhead Darter (Percina phoxocephala)

by Melissa Casarez and Adam Cohen (Ichthyology Collection)   Illustration: Joseph Tomelleri   The Slenderhead Darter occurs throughout the Mississippi River basin, and only exists in Texas in tributaries of the Red River.  It was first documented in TX in 1994 by UT biologists Laurie Dries and David Hillis in Sanders Creek, a...
Sorting Fish

Sorting Fish

Those preserved specimens in natural history collections didn't get into their jars or drawers on their own. Quite a bit of work was involved, not only in the field, but also in the lab. This time lapse video from the Ichthyology Collection shows one of the first steps, sorting the specimens into jars.  
  And then...
It got really cold. What does that mean for Texas biodiversity?

It got really cold. What does that mean for Texas biodiversity?

The February winter storm “Uri” saw temperatures drop into the single digits and stay below freezing for days. The last time Austin had single digit temperatures was in 1989, the year the Berlin wall fell, Indiana Jones and the Last Crusade came out, and Taylor Swift was born. So, yeah. It’s been a while. Uri not only caused havoc for Texans and ou...

Meet Stengl-Wyer Fellow: Angelina Dichiera

Dichiera Red drum Angelina with a red drum. (Sciaenops ocellatus) The Stengl-Wyer Endowment supports year-long fellowships for doctoral candidates pursuing dissertation research in the area of Diversity of life and organisms in their natural environments. Recipients will receive a 12-month stipend of $34,000, full tuition and fees, staff health insuran...
Sigmund and His Eels

Sigmund and His Eels

 Illustration: Nicole Elmer  If someone asks you to imagine Sigmund Freud, what do you see? An older gent with a well-trimmed white beard, cigar in hand? Is he perhaps listening to a patient who talks freely about personal issues while laying on a couch? This is the Freud most know as the famous neurologist and founder of psychoanalysi...
UT’s Non-Digital Biodiversity Specimens Join the Global Digital Revolution

UT’s Non-Digital Biodiversity Specimens Join the Global Digital Revolution

The prestigious journal BioScience just released "Natural History Collections: Advancing the Frontiers of Science," a compilation of recent natural history collection-related papers that sheds light on the importance of digitizing and publishing collections data, and the substantial obstacles confronting collections staff working on that. This come...
The Texas Trout

The Texas Trout

Today the only member of the family Salmonidae (trout, salmon and their relatives) that occurs in Texas is the non-native Rainbow Trout Oncorhynchus mykiss. That species is widely stocked around the state and there is one permanent population in McKittrick Creek, Guadalupe Mountains National Park, where it was introduced in the early 1900s. However...

Trout of Mexico's Sierra Madre

Picture1   Young Dean, reading to go fishing with dad... Like many others I'm sure, I found that working from home facilitated catching up on housecleaning, etc. Picking away at the long-standing task of re-housing old family photos, I came across one of me heading out trout fishing with my Dad.  It got me reflecting on what a big role ...

Fish Collection Expands with TPWD

shelvesA quick overview of 15 years of UT Fish Collection growth and collaborations with Texas Parks and Wildlife by Dean A. Hendrickson, Adam E. Cohen, Gary P. Garrett   As stated in the Biodiversity Center’s Collections webpage, the challenges for our collections are to: 1) “document biodiversity,” 2) “understand how biological processes...
Mis-Stocking Mayhem: The Hunt for Invasive Gobies in the Colorado River Basin

Mis-Stocking Mayhem: The Hunt for Invasive Gobies in the Colorado River Basin

By: Adam Zambie (undergraduate student; College of Natural Sciences; Environmental Science Major and Marine Science Certificate)   Naked Goby (Gobiosoma bosc), source: FoTX Project Website, credit: Joseph R. Tomelleri Texas has a long history of non-native fish introductions into its rivers, streams, and lakes. Many are improbable st...

FEATURED SPECIES: Rio Grande Cichlid (Herichthys cyanoguttatus)

image5By Melissa Casarez and Adam Cohen  (Ichthyology Collection)    Rio Grande Cichlid (Illustration by Joseph Tomelleri)   The Rio Grande Cichlid, sometimes called the Texas Cichlid, is the only member of the Cichlid family native to Texas, and the United States. Their native range includes most of the Rio Grande draina...

River Monsters, a Texas Edition

HoldingAsnapBy Adam Cohen, Collection Manager and Melissa Casarez, Assistant Collection Manager (Ichthyology Collection) We, in the fish collection, often find ourselves wading in deep, murky waters when out collecting around the state in creeks and rivers with steep banks and little chance for a quick escape, if necessary. During these times, we find it ...

Creatures of Halloween: Widemouth Blindcat (Satan eurystomus)

WidemouthBlindcatBy Dean Hendrickson (Curator, Ichthyology Collection) and Nicole Elmer    Satan eurystomus (Photo: Garold Sneegas) In our last Halloween posting, the scorpionfly donned orange, black, and yellow. The species in this blog’s focus is pale and pink. This is Satan eurystomus, also known as the Widemouth Blindcat, a cave catfish, known...

FEATURED SPECIES: Rio Grande Chub (Gila pandora)

Gpandora   Illustration by Joseph R. Tomelleri   The only member of this minnow genus known from Texas, the Río Grande Chub, Gila pandora (Cope, 1872), lives in about a dozen sites in Río Grande tributaries of New México, and Colorado, and in one highly isolated, one mile-long section of a small stream in the Davis Mountains o...

Native Fish Conservation and the Fishes of Texas Project

Picture1By Gary Garrett (Ichthyology Collection)  Native fish conservation areas of Texas. Freshwater fishes and the ecosystems they depend upon are experiencing massive degradation on a global scale. The American Fisheries Society estimates that around 40% of the freshwater fishes in North America are imperiled. Our studies show that in Texa...

ULM fish specimens come to Biodiversity Collections

TulaneBy Adam Cohen, Melissa Casarez and Dean Hendrickson (Ichthyology Collection) Some of ULM's Texas holdings that are now at UT's Biodiversity Collections. Photo taken at Tulane prior to packing In spring of 2017, administrators at the University of Louisiana at Monroe (ULM, historically NLU – Northeastern Louisiana University) made the dec...

CAMPUS BIODIVERSITY: Western Mosquitofish

Illustration-female     Gambusia affinis, female. (Illustrations by Joseph Tomelleri)  Male.   If you visit the turtle pond on campus, you might notice the turtles have quite a few tiny fish neighbors. Some of these are silvery-grey fish called by their common name of “Western Mosquitofish” or just “mosquitofish.” This is the species Ga...

Fish Collection Finishes Survey of the Little River

mapby Adam Cohen, Melissa Casarez, and Ryan Rash Figure adapted from Dennis Rose's thesis showing the major streams in the Little River Basin. Staff from the Biodiversity Center’s fish collection (home of the Fishes of Texas Project) recently teamed up with Texas Parks and Wildlife Department’s River Studies Program (TPWD) &n...
FEATURED SPECIES: Hogchoker (Trinectes maculatus)

FEATURED SPECIES: Hogchoker (Trinectes maculatus)

by Dr. F. Douglas Martin The Hogchoker is a small flatfish found in bays and estuaries but often spends extended time in rivers feeding on worms and insect larvae in soft mud bottoms.  They get their common name because East Coast fishermen would feed these so-called "trash" fish to their hogs, after which the fish would bow its body into a su...

American Eels in the Fish Collection

Adam eel copy (CLICK ON PHOTO FOR VIDEO) Pulling eels out of a bucket of ice water demonstrates how difficult eels are to hold and not to mention their ability to produce copious slime. The Biodiversity Center’s Ichthyology Collection is working with Texas Parks and Wildlife Department to document and study American Eels in Texas with the primary aim be...