Malachi Nicholas GranmoUniversity of Minnesota Duluth | UMD · Natural Resources Research Institute
Malachi Nicholas Granmo
Master of Science
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Publications (8)
We investigated several common, needle-shaped diatoms to better characterize the taxonomy of the genus Fragilaria in the Laurentian Great Lakes. We conducted diatom morphometric analysis facilitated by SEM and LM imaging on samples collected as a part of the USEPA’s long-term biological monitoring program. We resolved several decades-long taxonomic...
Geochemical analyses applied to lake sedimentary records can reveal the history of pollution by metals and the effects of remedial efforts. Lakes provide ideal environments for geochemical studies because they have steady deposition of fine grained material suitable for fixation of pollutants. The Laurentian Great Lakes are the most studied system...
The Laurentian Great Lakes are the most studied system in lake geochemistry and have well-preserved chronological profiles. Metals play numerous critical roles in natural and anthropogenic characteristics of lake ecosystems, so patterns in the historical records of metals from sedimentary cores provide important information about environmental base...
Geochemical analyses applied to lake sedimentary records can reveal the history of pollution by metals and the effects of remedial efforts. Lakes provide ideal environments for geochemical studies because they have steady deposition of fine grained material suitable for fixation of pollutants. The Laurentian Great Lakes are the most studied system...
Understanding the risk–release relationship (the relationship between density of organisms released and associated risk of establishment of a population) of aquatic invasive species is important for setting policy standards to protect natural water bodies from species spread through human-mediated vectors, in particular ballast discharge. To test t...
Aquatic invasive species cost the United States billions of dollars annually and are most often introduced via ships’ ballast tanks. The International Maritime Organization (IMO), among other regulatory organizations, adopted a set of ballast water performance standards that sets limits on the number of viable organisms that can be discharged with...
This Great Ships Initiative (GSI) technical report describes outcomes from controlled freshwater operational and biological evaluations of the performance of eight commercially available filter systems (FSs). Tests took place at the GSI Land-Based Research, Development, Testing and Evaluation (RDTE) Facility located in the Duluth-Superior Harbor (D...
This Great Ships Initiative (GSI) technical report describes outcomes from controlled freshwater operational and biological evaluations of the performance of eight commercially available filter systems (FSs). Tests took place at the GSI Land-Based Research, Development, Testing and Evaluation (RDTE) Facility located in the Duluth-Superior Harbor (D...