Catalog Record

Data and Report from S&T Project 21083: Assessment of Lab Methods to Investigate Dreissenid Mussel Veliger Settling in Imhoff Cones Through Dense Organic Material

The Bureau of Reclamation Ecological Research Lab utilizes Imhoff cones to settle water samples specifically collected to analyze for invasive dreissenid mussel larvae. Samples are settled, and the heaviest (bottom) 15ml are collected and analyzed under a microscope looking for the larvae. Previous research claimed that veligers present in a water sample would settle at the bottom 15ml. This study examined whether veligers would still settle in the bottom 15ml through water samples that are thick with different types of suspended solids like zooplankton and algae. This study found that suspended solids, or organic material, and the amount of that material, in water samples does interfere with settlement of veligers in the heaviest 15ml.
Generation Effort S&T Project 21083: Assessment of Laboratory Methods to Investigate Dreissenid Mussel Veliger Settling in Imhoff Cones Through Dense Organic Material
Themes Environmental
Tags Invasive Species, Quagga/Zebra Mussels, Detection
Reclamation Project
Reclamation Program Science and Technology Program

Location Information

Location Description The Bureau of Reclamation’s Technical Service Center (TSC) provides innovative solutions to water and power resource issues. The TSC consists of approximately 565 scientists, engineers, and other professional and office staff, and operates a world-class materials and hydraulic engineering laboratory. TSC's mission is to be Reclamation’s preferred provider of science and engineering services, and to be the preferred employer of engineers and scientists in the U.S. TSC values are founded on personal and professional integrity. The TSC is located at the Denver Federal Center, 6th and Kipling, Building 67, Denver, Colorado 80225-0007.
Location Tags Denver Federal Center
Location Parent
State(s) Colorado
Unified Region(s) Upper Colorado Basin
Timezone MT
Elevation 5,619 ft
Vertical Datum NAVD88
Coordinates (lat, long) See Location Details
Horizontal Datum WGS84