December 14, 2025

What killed fish in a Tarrant County lake? Local, state officials investigating

What killed so many fish at a well-known lake in Bedford is being looked into by authorities.

According to a news release, Bedford city officials visited Boys Ranch Lake on July 26 to look into claims of a significant decline in local fish populations, including largemouth bass, catfish, and sunfish.

We don’t know what caused it. According to Molly Fox, the city’s director of communications, Bedford authorities anticipate sharing test findings from samples collected at the lake later this week.

Through Monday morning, Bedford Parks and Recreation and the Texas Parks and Wildlife Department continued to retrieve the dead fish from the lake and gather samples.

The Bedford Boys Ranch leisure complex has a small community lake next to Generations Park that is open for catch-and-release fishing. Boats and swimming on the lake are prohibited while the park is still available to the public.

In July 2018, a similar incident occurred at Bedford Lake. That year, a nearby water main broke, releasing chlorinated water into the region, killing about 200 fish.

Residents at the time voiced worries about the lake’s water quality and how it affected wildlife. of 2015, a virus caused a significant decline of ducks in the lake, according to an NBC 5 investigation.

According to Todd Sink, an associate professor and aquaculture extension specialist at Texas A&M, mass fishkills, also known as large number fish kills, typically rise throughout the summer.

Between May and September, the Texas A&M AgriLife Extension Service, which handles wildlife and agricultural concerns throughout the state, receives four to five dead fish complaints every week on average.

According to Texas Parks and Wildlife Department spokeswoman Kirk McDonnell, the majority of fish fatalities occur in smaller, urban ponds.

According to Sink, biologists look at dissolved oxygen levels first when looking at major wildlife kills. High temperatures, decomposing aquatic vegetation, or toxic fertilizers can cause oxygen levels, which are vital to aquatic life, to drop.

According to Sink, Texas’s top cause of fish kills is low dissolved oxygen levels.

According to him, Texas has 1.3 million privately owned ponds. Somewhere, something is always dying.

Fish overpopulation may also result in less oxygen being produced in the water.

According to Sink, biologists also search for toxins. For instance, several plants contain germs that can be harmful to species that breathe through their gills.

According to McDonnell, low water levels and algal blooms are two examples of natural causes of fish mortality.

Although fish kills are still likely to happen, cities and local organizations usually use aquatic equipment and technology to stop them, he said. According to Sink, the majority are a result of the environment’s natural process of modifying fish populations to be sustainable in a habitat with limited resources.

“No one realizes how common (fish kills) are,” he said. It’s not always a serious, frightening, or dire situation.

In recent years, there have been two catastrophic fish kills in the Trinity River as a result of chemical leaks.

A Texas Parks and Wildlife Department study found that a warehouse fire in the Foundry District in 2022 caused low dissolved oxygen levels, which in turn killed fish in the Trinity River. The next year, significant levels of chlorinated tap water leaked into the river from a water main break in downtown Fort Worth.

The Fort Worth Report’s environment correspondent is Nicole Lopez. You can reach her at fortworthreport.org/nicole.lopez.

Decisions on news at the Fort Worth Report are decided without consulting our board members or sponsors. Find out more about our policy on editorial independence here.

Opinions are plentiful, but facts are more difficult to get. At the Fort Worth Report, we provide truth-based local reporting so you can make wise choices for your community and yourself.

The Journalism Trust Initiative has accredited Fort Worth Report for upholding ethical journalism standards.

Republish this narrative

Creative Commons License

Noncommercial organizations are exempt from republishing fees. It is forbidden for businesses to operate without a license. For further information, get in touch with us.

Republish this article

The Creative Commons Attribution-NoDerivatives 4.0 International License governs this work.

  • Look for the “Republish This Story” button underneath each story. To republish online, simply click the button, copy the html code and paste into your Content Management System (CMS). Do not copy stories straight from the front-end of our web-site.


  • You are required to follow the guidelines and use the republication tool when you share our content. The republication tool generates the appropriate html code.

  • You are required to add this language at the top of every republished story, including a link to the story.

    This story was originally published by the Fort Worth Report. You may read

    the original version here



    .

  • You can t edit our stories, except to reflect relative changes in time, location and editorial style.
  • You can t sell or syndicate our stories.
  • Any web site our stories appear on must include a contact for your organization.

  • If you use our stories in any other medium for example, newsletters or other email campaigns you must make it clear that the stories are from the Fort Worth Report. In all emails, link directly to the story at fortworthreport.org and not to your website.
  • If you share our stories on social media, please tag us in your posts using

    @FortWorthReport


    on Facebook and

    @FortWorthReport


    on Twitter.

  • You have to credit Fort Worth Report. Please use Author Name, Fort Worth Report in the byline. If you re not able to add the byline, please include a line at the top of the story that reads: This story was originally published by Fort Worth Report and include our website,

    fortworthreport.org


    .

  • You can t edit our stories, except to reflect relative changes in time, location and editorial style.
  • Our stories may appear on pages with ads, but not ads specifically sold against our stories.
  • You can t sell or syndicate our stories.
  • You can only publish select stories individually not as a collection.
  • Any web site our stories appear on must include a contact for your organization.
  • If you share our stories on social media, please tag us in your posts using

    @FortWorthReport

    on Facebook and

    @FortWorthReport


    on Twitter.

What killed fish in a Tarrant County lake? Local, state officials investigating

Avatar photo

Janet Trew

Janet Trew is a seasoned writer with over five years of experience in the industry. Known for her ability to adapt to different styles and formats, she has cultivated a diverse skill set that spans content creation, storytelling, and technical writing. Throughout her career, Janet has worked across various niches, from US news, crime, finance, lifestyle, and health to business and technology, consistently delivering well-researched, engaging, and informative content.

View all posts by Janet Trew →

Leave a Reply

Your email address will not be published. Required fields are marked *