Malachi Nicholas Granmo

Malachi Nicholas Granmo
University of Minnesota Duluth | UMD · Natural Resources Research Institute

Master of Science

About

8
Publications
3,961
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61
Citations

Publications

Publications (8)
Article
Full-text available
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...
Article
Full-text available
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...
Article
Full-text available
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...
Poster
Full-text available
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...
Article
Full-text available
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...
Thesis
Full-text available
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...
Technical Report
Full-text available
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...
Technical Report
Full-text available
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...

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