Connect with us

HOME

[AgriLife Today] ‘Forgotten’ fish turns up in West Texas

Published

on

By: Steve Byrns

Minnow rediscovered by AgriLife scientists

Writer: Steve Byrns, 325-653-4576, [email protected]

Contact: Dr. Kevin Conway, 979-845-2620, [email protected]

COLLEGE STATION – With no more “swimmable” water than thirsty West Texas has, it’s hard to imagine a fish, even a minnow-sized fish could remain “missing” for more than a century. But due to a case of mistaken identity, such is the case, said a Texas A&M AgriLife Research scientist.

Dr. Kevin Conway, AgriLife Research wildlife and fisheries scientist, College Station, and Daemin Kim, a former graduate student of Conway’s now at Ewha Womans University, Seoul, South Korea, collaborated on the paper “Redescription of the Texas shiner Notropis amabilis from the southwestern U.S. and northern Mexico with the reinstatement of N. megalops.”

The paper was published in the journal Ichthyological Exploration of Freshwaters, verlag.de/04biol/pdf/ief26_4_03.pdf .

“Notropis megalops, the scientific name of the newly discovered fish, is a new species for Texas, though it’s not ‘really’ a new species,” said Conway, the paper’s lead author. “Charles Frederic Girard, an early day scientist who documented many new species, beat us to the find in 1856, but Girard’s discovery has been dismissed since the 1860s.”

Conway said Girard described many new species of fish, amphibians and reptiles from the southwestern and central U.S., with most collected during the U.S. and Mexican boundary surveys between 1853-1855. But Conway said some of his contemporaries thought Girard was a bit “careless,” saying he sometimes described the same species more than once, which may have led to the current confusion.

“So I guess you could say we have discovered an ‘old-but-new’ minnow way out in West Texas where nobody expected to find anything new, especially a fish,” Conway said. “Though we can’t give this species a new scientific name, we are proposing the common name of West Texas shiner, though the species is also found in adjacent parts of Mexico.”

Conway said their paper documents the rediscovery of the minnow and the confusion surrounding it. That confusion arose because another minnow, the Texas shiner or Notropis amabilis, and the rediscovered minnow were thought to be one and the same, so it was not recognized as a valid separate species.

But based on Conway’s and Kim’s detailed study using genetics and morphology, they have shown that Notropis megalops and Notropis amabilis are in fact two very different fish and are valid but separate species.

“They do look a lot alike, thus the confusion,” Conway said. “But they do not interbreed, and they are actually not even closely related, although they were considered to be the same thing for the last 120 years or so.

“Unlike the Texas shiner, which is common in Central Texas, the West Texas shiner is restricted entirely to the Rio Grande drainage, has a fragmented distribution and has low levels of genetic diversity,” Conway said. “As such, it is already being considered a conservation priority by state agencies.”

So what restrictions does the minnow’s newfound status place on landowners along the minnows’ haunts? Not to worry, said an expert on the topic.

Dr. Gary Garrett, former Texas Parks and Wildlife Department director of watershed conservation and now research scientist at the Texas Natural History Collections, University of Texas at Austin, had this to add about the West Texas shiner:

“The Texas Parks and Wildlife Department maintains a list of species that are in need of conservation efforts, officially called Species of Greatest Conservation Need. Although there are no regulatory actions associated with the listing, it does call attention to impending problems and provides incentives for research and conservation.”

Garrett said the distribution of the West Texas shiner is similar to many other fish that have already been recognized as imperiled such as manantial roundnose minnow, Devils River minnow, Tamaulipas shiner, Rio Grande shiner, longlip jumprock, Mexican redhorse, spotfin gambusia, blotched gambusia, Conchos pupfish, Rio Grande largemouth bass and Rio Grande darter.

“All Texans should be concerned when beautiful and previously pristine habitats are in decline and portions of our state’s natural resources are at risk of being lost,” he said.

“Finding this minnow just goes to show that we still don’t know everything about the fauna that we share our state with,” Conway said. “Discoveries or rediscoveries can still be made, justifying the need for continuing research in the rivers and streams of Texas.”

-30-

LikeTweet

Find more stories, photos, videos and audio at http://today.agrilife.org

Continue Reading

Equine

AQHA Horse of the Year

Published

on

By

By Krista Lucas Wynn

Each year, when the professional rodeo season wraps on Sept. 30, the Professional Rodeo Cowboys Association and Women’s Professional Rodeo Association announce the Nutrena Horse of the Year, presented by the American Quarter Horse Association, in each event. This is a prestigious award, voted on by the members of the associations. To be named Horse of the Year by fellow competitors is a high honor only a few achieve.

To read more, pick up a copy of the November edition of North Texas Farm & Ranch magazine, available digitally and in print. To subscribe by mail, call 940-872-5922.

Continue Reading

Farm & Ranch

Managing Show Cattle Through The Winter

Published

on

By

By Heather Welper

Husband and wife duo, Heather and Calvin Welper, are the Co-Owners and Operators or Two C Livestock, located in Valley View, Texas.

The pair’s operation has a show cattle focus where they raise and sell purebred heifers of all breeds and club calf Hereford steers.

When it comes to show cattle, the Welpers know a thing or two including how to prepare for the cold winter months and the Texas major show season run.

To read more, pick up a copy of the November edition of North Texas Farm & Ranch magazine, available digitally and in print. To subscribe by mail, call 940-872-5922.

Continue Reading

HOME

Grazing North Texas- Snow On The Mountain

Published

on

By

By Tony Dean

Snow on the Mountain is an annual forb that is part of our landscape almost every year.

It is adapted to most of Texas and grows north to Montana and Minnesota and south to Mexico.

Although is seems to be most adapted to clay soils, this plant can be found on a wide variety of soil and moisture conditions.

To read more, pick up a copy of the November edition of North Texas Farm & Ranch magazine, available digitally and in print. To subscribe by mail, call 940-872-5922.

Continue Reading
Ad
Ad
Ad

Trending