Navigation Links
Study finds golden algae responsible for killing millions of fish less toxic in sunlight

A new Baylor University study has found that sunlight decreases the toxicity of golden algae, which kills millions of fish in the southern United States every year.

While golden algae is primarily a coastal species, it has been found in Texas rivers and lakes, including Lake Whitney and Lake Waco in Central Texas, and Lake Granbury in North Texas. Experts believe that several environmental factors influence toxin production, but new research from Baylor scientists shows that sunlight is a key component in the magnitude and duration of the toxicity of the algae to fish. Specifically, the study found that the longer golden algae toxins are exposed to natural sunlight, the less toxic the algal toxin becomes to fish and other aquatic organisms.

"What we think happens in terms of the large fish kills is that sunlight only penetrates down so deep in a lake, so in a lake with golden algae blooms, fish located at greater depths may be exposed to more algal toxins," said study co-author Dr. Bryan Brooks, associate professor of environmental sciences and biomedical studies at Baylor and director of the environmental health sciences program. "Golden algae is aggressive and very unique because it can produce its own toxins, swim, photosynthesize and feed on other organisms. If we can figure out what stimulates and decreases the growth of this algae, we might be able to control it."

Along the Brazos River in north and central Texas, at least seven-million fish have been killed since 1988 due to high golden algae levels, according to Texas Parks and Wildlife. In fact, in 2005 more than a million fish died in Lake Whitney over a three-month period. Officials believe large golden algae blooms contributed to the deaths, attacking the fishes' gills and causing them to suffocate.

The study appears on-line in the Journal of Plankton Research.


Contact: Matt Pene
Baylor University

Page: 1

Related biology news :

1. Study reveals important aspects of signaling across cell membranes in plants
2. Study hints at antibiotic overuse in home-care patients
3. E. coli bacteria more likely to develop resistance after exposure to low levels of antibiotics, reports a study in Microbial Drug Resistance
4. New study supports Darwins hypothesis on competition between species
5. Social scientists study impact of human adult stem cell research
6. Scripps Research scientist wins $1.9 million grant to study malaria
7. Mountain pine beetle activity may impact snow accumulation and melt, says CU-Boulder study
8. Study finds widespread stream biodiversity declines at low levels of urban development
9. Environmental engineering students and faculty study Passaic River pollution
10. Finnish twin study yields new information on how fat cells cope with obesity
11. Smithsonian study: Stranding records are faithful reflection of live whale and dolphin populations
Post Your Comments:
(Date:11/17/2015)... , November 17, 2015 Paris ... 2015.   --> Paris from 17 ... DERMALOG, the biometrics innovation leader, has invented the first ... fingerprints on the same scanning surface. Until now two different ... Now one scanner can capture both on the same ...
(Date:11/12/2015)...  A golden retriever that stayed healthy despite having ... provided a new lead for treating this muscle-wasting disorder, ... of MIT and Harvard and the University of São ... Cell, pinpoints a protective gene that boosts ... The Boston Children,s lab of Lou Kunkel , ...
(Date:11/10/2015)... Nov. 10, 2015 About ... that helps to identify and verify the identity ... considered as the secure and accurate method of ... a particular individual because each individual,s signature is ... especially when dynamic signature of an individual is ...
Breaking Biology News(10 mins):
(Date:11/28/2015)... ... November 28, 2015 , ... • Jeon Jin Bio Corp, ... and rodent control solutions , Bird Free, ... works across all sensory modalities including visual, smell, taste and touch, enabling safe, effective ...
(Date:11/27/2015)... , November 27, 2015 ... Growing popularity of companion diagnostics is one ... biomarkers market with pharmaceutical companies and diagnostic ... diagnostic tests. . ... Complete report on global cancer biomarkers market ...
(Date:11/25/2015)... , November 26, 2015 ... Biobanking Market 2016 - 2020 report analyzes that ... integrity and quality in long-term samples, minimizing manual ... cost-effectiveness. Automation minimizes manual errors such as mislabeling ... efficiency. Further, it plays a vital role in ...
(Date:11/25/2015)... 25, 2015 Studies reveal the ... plaque and pave the way for more effective treatment for ...     --> --> ... health problems in cats, yet relatively little was understood about ... studies have been conducted by researchers from the WALTHAM Centre ...
Breaking Biology Technology: