Gravel chub silt and debris. They are more often found in areas with limited macrophytes and larger root aquatic plants, algae and moss. Because of their need of a specialized clean habitats, the gravel chub is especially vulnerable to various forms of pollution, especially from agriculture practices that create erosion and excessive silt. In past sampling surveys the gravel chub had been found as far north in the Upper Iowa River as Le Roy, Minnesota, but because of excessive amounts of sewage, pesticides and sedimentation of rocks and sand, this is no longer the case. The presence of gravel chubs in a
Granular Linux to install it to try it. The standard CD version of Granular includes two desktop environments - KDE and Enlightenment 17. Like PCLinuxOS, Granular uses Synaptic Package Manager, a GUI frontend to APT, for package management (installing, updating, or removing packages). Granular comes with a Perl-based script mklivecd which makes it possible to remaster Granular or create a backup CD/DVD out of the installed system. It also included Granular StartPoint, which is a HTML-based and acts as a primer to the various major software included in Granular. In the beginning a news website was launched on 5 December, under the