Recovery of the Fish Population of a Municipal Wastewater Dominated, North Texas Creek After a Major Chlorine Disturbance

This study evaluated the effects of a major chlorine disturbance on fish communities in Pecan creek by the City of Denton's Pecan Creek Water Reclamation Plant. Fish communities in Pecan Creek were sampled using a depletion methodology during February, April, July, and November, 1999. February and April sampling events showed that the fish communities were severely impacted by the chlorine. Sampling during July and November showed fish communities recovered in Pecan Creek. The first-twenty minutes of shocking and seining data were analyzed to mirror an equal effort methodology. This methodology was compared to the depletion methodology to see if the equal effort methodology could adequately monitor the recovery of Pecan Creek after the chlorine disturbance. It was determined that the equal effort methodology was capable of monitoring the recovery of Pecan Creek, but could not accurately represent the fisheries community as well as the depletion method. These data using the twenty-minute study were compared to a previous study. Results of this study were similar to those found in a previous study, although fish communities were more severely impacted and took longer to recover.

Grantor dc:publisher

University of North Texas

Year dc:date

2002

Author dc:creator

• Maschmann, Gerald F.

Contributors dc:contributor

• Dickson, Kenneth L.
• Kennedy, James H.
• Waller, William T.

• Chlorine -- Environmental aspects -- Texas -- Pecan Creek.
• Fishes -- Effect of chemicals on -- Texas -- Pecan Creek.
• Effluent quality -- Texas -- Pecan Creek.
• Sewage disposal plants -- Environmental aspects -- Texas -- Pecan Creek.
• Water -- Pollution -- Toxicology -- Texas -- Pecan Creek.
• chlorine disturbance
• fish
• recovery
• wastewater
• effluent

Statement dc:rights

• Public
• Copyright
• Maschmann, Gerald F.
• Copyright is held by the author, unless otherwise noted. All rights reserved.

Language dc:language

English

Identifier

oclc: 50761750
untcat: b2434508
https://digital.library.unt.edu/ark:/67531/metadc3230/
ark: ark:/67531/metadc3230

OAI identifier oai:identifier

info:ark/67531/metadc3230