Item talk:Q47703
From geokb
{
"USGS Staff Profile": {
"@context": "https://schema.org",
"@type": "Person",
"dateModified": "2024-09-21T07:55:40.571247",
"name": "Charles P Madenjian, PhD",
"identifier": [
{
"@type": "PropertyValue",
"propertyID": "ORCID",
"value": "0000-0002-0326-164X"
}
],
"jobTitle": "Research Fisheries Biologist",
"hasOccupation": [
{
"@type": "OrganizationalRole",
"startDate": "2024-09-21T07:55:40.578310",
"affiliatedOrganization": {
"@type": "Organization",
"name": "Great Lakes Science Center",
"url": "https://www.usgs.gov/centers/great-lakes-science-center"
},
"roleName": "Research Fisheries Biologist"
},
{
"@type": "Occupation",
"additionalType": "self-claimed professional experience",
"name": "March 1995-present; Research Fishery Biologist; NBS/USGS Great Lakes Science Center. Duties: Research on prey fish dynamics, food web dynamics, lake trout population dynamics in Lakes Michigan and Huron, laboratory and field evaluations of fish bioenergetics models, using PCBs as a tracer of food consumption by fish, contaminant accumulation in fish, effects of invasives on food web dynamic"
},
{
"@type": "Occupation",
"additionalType": "self-claimed professional experience",
"name": "January 1992-March 1995; Research Fishery Biologist; USFWS/NBS Lake Erie Biological Station. Duties: Research on life-history characteristics, population dynamics, and stock-recruitment relationships of Lake Erie fishes; also bioenergetics modeling of zebra mussels and waterbirds."
},
{
"@type": "Occupation",
"additionalType": "self-claimed professional experience",
"name": "1990-1991; Associate Researcher; Center for Limnology, University of Wisconsin. Duties: Research on variability in contaminant accumulation rates within populations of Lake Michigan salmonines, via individual-based modeling."
},
{
"@type": "Occupation",
"additionalType": "self-claimed professional experience",
"name": "1989-1990; Postdoctoral Fellow; Center for Limnology, University of Wisconsin. Duties: Basic and applied research on variability in growth rates of age-0 walleyes (Sander vitreus), using individual-based modeling."
},
{
"@type": "Occupation",
"additionalType": "self-claimed professional experience",
"name": "1988-1989; Associate Researcher; Hawaii Natural Energy Institute, University of Hawaii. Duties: Research on prediction of primary production and secondary production in artificial upwellings, via computer simulation modeling."
},
{
"@type": "Occupation",
"additionalType": "self-claimed professional experience",
"name": "1983-1988; Graduate Research Assistant; Hawaii Institute of Marine Biology, University of Hawaii. Duties: Research on predicting overnight loss of dissolved oxygen from aquaculture ponds, using computer simulation modeling."
},
{
"@type": "Occupation",
"additionalType": "self-claimed professional experience",
"name": "1980-1983; Research Associate; Great Lakes Research Division, University of Michigan. Duties: Research on the impact of the J. H. Campbell Power Plant and D. C. Cook Power Plant on fish populations in eastern Lake Michigan."
},
{
"@type": "Occupation",
"additionalType": "self-claimed professional experience",
"name": "1978-1980; Research Assistant; Great Lakes Research Division, University of Michigan. Duties: Research on the impact of the J. H. Campbell Power Plant on fish populations in eastern Lake Michigan."
},
{
"@type": "Occupation",
"additionalType": "self-claimed professional experience",
"name": "1977-1978; Research Assistant; University of Michigan. Duties: Research on time series analysis of fishery catch and effort."
},
{
"@type": "Occupation",
"additionalType": "self-claimed professional experience",
"name": "1976-1977; Teaching Assistant; School of Natural Resources, University of Michigan. Duties: Assisted in teaching an introductory course on applied statistics."
}
],
"description": [
{
"@type": "TextObject",
"additionalType": "short description",
"abstract": "Research Fisheries Biologist with the Great Lakes Science Center"
},
{
"@type": "TextObject",
"additionalType": "staff profile page introductory statement",
"abstract": "Charles P. Madenjian is a Research Fishery Biologist in the Lake Michigan Section of the Deepwater Sciences Branch of the U.S. Geological Survey (USGS) Great Lakes Science Center. He is stationed at the USGS Great Lakes Science Center headquarters in Ann Arbor, Michigan."
},
{
"@type": "TextObject",
"additionalType": "personal statement",
"abstract": "The scientist\u2019s research efforts can be categorized into four theme areas: (1) fish community dynamics and native fish restoration in the Laurentian Great Lakes, (2) invasion biology in the Laurentian Great Lakes, (3) bioenergetics modeling, and (4) contaminant accumulation in fish. The scope of the scientist\u2019s research varies across these four theme areas. For fish community dynamics, native fish restoration, and invasion biology, the scientist\u2019s research is focused on Lake Michigan, given the scientist\u2019s assignment to the Lake Michigan Section. However, comparing Lake Michigan with the other Laurentian Great Lakes is within the scientist\u2019s scope of research. Much of the scientist\u2019s research work emanates from these inter-lake comparisons. Data available for analysis of fish community dynamics, native fish restoration, and invasion biology extend back to the 1960s, or even earlier in some cases. These long-term time series represent a valuable resource for trying to identify the important factors regulating fish community dynamics, native fish restoration, and effects of invasives on the fish community. For bioenergetics modeling and contaminant accumulation in fish, the scientist\u2019s focus is on the Laurentian Great Lakes. Nonetheless, for both bioenergetics modeling and contaminant accumulation in fish, the scientist\u2019s scope of research is global, because the scientist examines results from studies around the world to advance our knowledge in both fields. Bioenergetics modeling can be applied to organisms and populations around the world. Analogously, fish from all areas of the globe accumulate environmental contaminants, such as mercury (Hg) and polychlorinated biphenyls (PCBs). The scientist collaborates with scientists and researchers both within the Laurentian Great Lakes basin and outside the basin, with most of the collaborations within the basin. Even so, collaborations have been forged with researchers across the United States, Canada, Europe, and China. Much of the funding received by the scientist is drawn from the base budget of the USGS Great Lakes Science Center (GLSC), because the GLSC has been mandated to maintain long-term surveys for fish communities in the Laurentian Great Lakes, and maintaining these surveys is part of the scientist\u2019s assigned duties. Supplemental funding has been provided by the Great Lakes Fishery Commission, the Great Lakes Fishery Trust, the Great Lakes Fish and Wildlife Restoration Act, and the USGS Climate Adaptation Science Center."
}
],
"email": "cmadenjian@usgs.gov",
"url": "https://www.usgs.gov/staff-profiles/charles-p-madenjian",
"affiliation": [],
"hasCredential": [
{
"@type": "EducationalOccupationalCredential",
"name": "Ph.D., Zoology, University of Hawaii, 1988."
},
{
"@type": "EducationalOccupationalCredential",
"name": "M.S., Resource Ecology, University of Michigan, 1979."
},
{
"@type": "EducationalOccupationalCredential",
"name": "B.S., Aquatic Biology (minor in mathematics), Rutgers University, 1975."
}
],
"knowsAbout": [
{
"@type": "Thing",
"additionalType": "self-claimed expertise",
"name": "fish community dynamics"
},
{
"@type": "Thing",
"additionalType": "self-claimed expertise",
"name": "fish population dynamics"
},
{
"@type": "Thing",
"additionalType": "self-claimed expertise",
"name": "Laurentian Great Lakes"
},
{
"@type": "Thing",
"additionalType": "self-claimed expertise",
"name": "native fish restoration"
},
{
"@type": "Thing",
"additionalType": "self-claimed expertise",
"name": "invasion biology"
},
{
"@type": "Thing",
"additionalType": "self-claimed expertise",
"name": "fish bioenergetics modeling"
},
{
"@type": "Thing",
"additionalType": "self-claimed expertise",
"name": "contaminant accumulation in fish"
},
{
"@type": "Thing",
"additionalType": "self-claimed expertise",
"name": "lake trout (Salvelinus namaycush) restoration"
},
{
"@type": "Thing",
"additionalType": "self-claimed expertise",
"name": "burbot (Lota lota) population dynamics"
},
{
"@type": "Thing",
"additionalType": "self-claimed expertise",
"name": "polychlorinated biphenyls (PCBs)"
},
{
"@type": "Thing",
"additionalType": "self-claimed expertise",
"name": "mercury (Hg)"
},
{
"@type": "Thing",
"additionalType": "self-claimed expertise",
"name": "Lake Michigan"
},
{
"@type": "Thing",
"additionalType": "self-claimed expertise",
"name": "areas of concern (AOCs)"
}
],
"memberOf": {
"@type": "OrganizationalRole",
"name": "staff member",
"member": {
"@type": "Organization",
"name": "U.S. Geological Survey"
},
"startDate": "2024-09-21T07:55:40.571254"
}
},
"ORCID": {
"@context": "http://schema.org",
"@id": "https://orcid.org/0000-0002-0326-164X",
"@reverse": {},
"@type": "Person",
"familyName": "Madenjian",
"givenName": "Chuck",
"mainEntityOfPage": "https://orcid.org/0000-0002-0326-164X"
},
"OpenAlex": {
"created_date": "2023-07-21",
"display_name": "Charles P. Madenjian",
"display_name_alternatives": [
"Charles P. Madenjian",
"Charles Madenjian",
"C. P. Madenjian",
"Charles Paul Madenjian"
],
"ids": {
"openalex": "https://openalex.org/A5052889640",
"orcid": "https://orcid.org/0000-0002-0326-164X"
},
"last_known_institutions": [
{
"country_code": "US",
"display_name": "Great Lakes Science Center",
"id": "https://openalex.org/I2799636893",
"lineage": [
"https://openalex.org/I2799636893"
],
"ror": "https://ror.org/04jtyp632",
"type": "archive"
},
{
"country_code": "US",
"display_name": "United States Geological Survey",
"id": "https://openalex.org/I1286329397",
"lineage": [
"https://openalex.org/I1286329397",
"https://openalex.org/I1335927249"
],
"ror": "https://ror.org/035a68863",
"type": "government"
}
],
"orcid": "https://orcid.org/0000-0002-0326-164X",
"topics": [
{
"count": 175,
"display_name": "Importance and Conservation of Freshwater Biodiversity",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T10302",
"subfield": {
"display_name": "Nature and Landscape Conservation",
"id": "https://openalex.org/subfields/2309"
}
},
{
"count": 67,
"display_name": "Ecological Impact of Freshwater Mussels",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T12097",
"subfield": {
"display_name": "Ecology",
"id": "https://openalex.org/subfields/2303"
}
},
{
"count": 65,
"display_name": "Impacts of Climate Change on Marine Fisheries",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T10230",
"subfield": {
"display_name": "Global and Planetary Change",
"id": "https://openalex.org/subfields/2306"
}
},
{
"count": 39,
"display_name": "Length-Weight Relationships of Fish Species",
"domain": {
"display_name": "Life Sciences",
"id": "https://openalex.org/domains/1"
},
"field": {
"display_name": "Agricultural and Biological Sciences",
"id": "https://openalex.org/fields/11"
},
"id": "https://openalex.org/T12319",
"subfield": {
"display_name": "Aquatic Science",
"id": "https://openalex.org/subfields/1104"
}
},
{
"count": 30,
"display_name": "Impact of Persistent Organic Pollutants on Environment and Health",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T10122",
"subfield": {
"display_name": "Health, Toxicology and Mutagenesis",
"id": "https://openalex.org/subfields/2307"
}
},
{
"count": 29,
"display_name": "Aquatic Ecotoxicology and Biomarkers of Pollution",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T10447",
"subfield": {
"display_name": "Health, Toxicology and Mutagenesis",
"id": "https://openalex.org/subfields/2307"
}
},
{
"count": 18,
"display_name": "Toxicology and Environmental Impacts of Mercury Contamination",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T10819",
"subfield": {
"display_name": "Health, Toxicology and Mutagenesis",
"id": "https://openalex.org/subfields/2307"
}
},
{
"count": 17,
"display_name": "Application of Stable Isotopes in Trophic Ecology",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T12073",
"subfield": {
"display_name": "Ecology",
"id": "https://openalex.org/subfields/2303"
}
},
{
"count": 12,
"display_name": "Eutrophication and Harmful Algal Blooms",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T10236",
"subfield": {
"display_name": "Environmental Chemistry",
"id": "https://openalex.org/subfields/2304"
}
},
{
"count": 10,
"display_name": "Biogeochemical Cycling of Nutrients in Aquatic Ecosystems",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T11311",
"subfield": {
"display_name": "Environmental Chemistry",
"id": "https://openalex.org/subfields/2304"
}
},
{
"count": 10,
"display_name": "Water Quality and Hydrogeology Research",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T12773",
"subfield": {
"display_name": "Water Science and Technology",
"id": "https://openalex.org/subfields/2312"
}
},
{
"count": 9,
"display_name": "Wildlife Ecology and Conservation Biology",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T10199",
"subfield": {
"display_name": "Ecology",
"id": "https://openalex.org/subfields/2303"
}
},
{
"count": 8,
"display_name": "Ecological Impact of Beaver Activities on Ecosystems",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T14039",
"subfield": {
"display_name": "Ecology",
"id": "https://openalex.org/subfields/2303"
}
},
{
"count": 7,
"display_name": "Metabolism and Nutrition in Aquaculture Feeds",
"domain": {
"display_name": "Life Sciences",
"id": "https://openalex.org/domains/1"
},
"field": {
"display_name": "Agricultural and Biological Sciences",
"id": "https://openalex.org/fields/11"
},
"id": "https://openalex.org/T10450",
"subfield": {
"display_name": "Aquatic Science",
"id": "https://openalex.org/subfields/1104"
}
},
{
"count": 6,
"display_name": "Real-time Water Quality Monitoring and Aquaculture Management",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T12697",
"subfield": {
"display_name": "Water Science and Technology",
"id": "https://openalex.org/subfields/2312"
}
},
{
"count": 5,
"display_name": "Metal-Induced Oxidative Stress and Health Effects",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T10790",
"subfield": {
"display_name": "Health, Toxicology and Mutagenesis",
"id": "https://openalex.org/subfields/2307"
}
},
{
"count": 5,
"display_name": "Assessment of Surface Water Quality",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T11634",
"subfield": {
"display_name": "Water Science and Technology",
"id": "https://openalex.org/subfields/2312"
}
},
{
"count": 5,
"display_name": "Biogeography and Conservation of Neotropical Freshwater Fishes",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T12014",
"subfield": {
"display_name": "Nature and Landscape Conservation",
"id": "https://openalex.org/subfields/2309"
}
},
{
"count": 5,
"display_name": "Metabolic Theory of Ecology and Climate Change Impacts",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T11056",
"subfield": {
"display_name": "Ecology",
"id": "https://openalex.org/subfields/2303"
}
},
{
"count": 4,
"display_name": "Ecological Dynamics of Riverine Landscapes",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T10577",
"subfield": {
"display_name": "Ecology",
"id": "https://openalex.org/subfields/2303"
}
},
{
"count": 4,
"display_name": "Antibiotic Resistance in Aquatic Environments and Wastewater",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T10419",
"subfield": {
"display_name": "Pollution",
"id": "https://openalex.org/subfields/2310"
}
},
{
"count": 3,
"display_name": "Hydrological Modeling and Water Resource Management",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T10330",
"subfield": {
"display_name": "Water Science and Technology",
"id": "https://openalex.org/subfields/2312"
}
},
{
"count": 3,
"display_name": "Ecological Impact of Invasive Species on Islands",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T11913",
"subfield": {
"display_name": "Ecology",
"id": "https://openalex.org/subfields/2303"
}
},
{
"count": 3,
"display_name": "Reproductive Physiology and Endocrine Disruption in Fish",
"domain": {
"display_name": "Life Sciences",
"id": "https://openalex.org/domains/1"
},
"field": {
"display_name": "Biochemistry, Genetics and Molecular Biology",
"id": "https://openalex.org/fields/13"
},
"id": "https://openalex.org/T11505",
"subfield": {
"display_name": "Physiology",
"id": "https://openalex.org/subfields/1314"
}
},
{
"count": 3,
"display_name": "Ecology and Conservation of Marine Mammals",
"domain": {
"display_name": "Physical Sciences",
"id": "https://openalex.org/domains/3"
},
"field": {
"display_name": "Environmental Science",
"id": "https://openalex.org/fields/23"
},
"id": "https://openalex.org/T10659",
"subfield": {
"display_name": "Ecology",
"id": "https://openalex.org/subfields/2303"
}
}
],
"updated_date": "2024-05-19T00:57:29.113396"
}
}
