(DOWNLOAD) "Distribution of the Tennessee Dace, Phoxinus Tennesseensis, In Northeast Tennessee." by Journal of the Tennessee Academy of Science # Book PDF Kindle ePub Free
eBook details
- Title: Distribution of the Tennessee Dace, Phoxinus Tennesseensis, In Northeast Tennessee.
- Author : Journal of the Tennessee Academy of Science
- Release Date : January 01, 2005
- Genre: Engineering,Books,Professional & Technical,
- Pages : * pages
- Size : 190 KB
Description
ABSTRACT -- Eleven historic and 41 potential new locations were surveyed from September 1998-April 2001 to determine the current distribution of Phoxinus tennesseensis in northeast Tennessee and if current protection is warranted. Phoxinus tennesseensis were found to inhabit 5 (45%) historic and 4 (9.8%) new streams sampled. Dip nets proved to be the most efficient method of collection. Phoxinus tennesseensis always were found in pools with mostly (89%) silt substrates and woody vegetation growing along the banks. All pools had undercut banks and 67% of pools had root masses hanging into the water, which served as a refuge for adult and especially juvenile fish. Phoxinus tennesseensis were observed spawning over nests of Campostoma anomalum in Trinkle Creek and Timbertree Branch (Sullivan County). There was a slight decrease in the total number of populations in northeast Tennessee even with the discovery of 4 new populations. Possible reasons for the decline include excess silt, removal of streamside woody vegetation, and severe drought. We recommend that P. tennesseensis continue to be granted protection and further studies be conducted throughout its range to determine the status of all known populations. **********