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Journal articles on the topic 'Mississippi (rivier)'

Author: Grafiati

Published: 28 July 2024

Last updated: 31 July 2025

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1

Cobb, Charles R., and Brian M. Butler. "The Vacant Quarter Revisited: Late Mississippian Abandonment of the Lower Ohio Valley." American Antiquity 67, no. 4 (2002): 625–41. http://dx.doi.org/10.2307/1593795.

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The idea that a substantial portion of the North American midcontinent centered on the Ohio and Mississippi Rivers confluence was largely depopulated around A.D. 1450–1550—Stephen Williams's “Vacant Quarter” hypothesis—has been generally accepted by archaeologists. There has been, however, some disagreement over the timing and extent of the abandonment. Our long-term research along the Ohio River in southern Illinois's interior hill country has yielded a substantial corpus of late Mississippian period radiocarbon dates, indicating that depopulation of the lower Ohio Valley occurred at the earl

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2

Boszhardt, Robert F., and James B. Stoltman. "Petrographic Analysis of Late Woodland and Middle Mississippian Ceramics at the Iva Site (47Lc42), Onalaska, Wisconsin." Midcontinental Journal of Archaeology 41, no. 2 (2016): 93–126. http://dx.doi.org/10.2307/26599932.

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Abstract The Iva site contained a rare effigy mound and Middle Mississippian (Ramey horizon) component within the Late Woodland Lewis phase territory of the Upper Mississippi River valley. Salvage excavations in 2002–2003 recovered fragments of numerous Angelo Punctated, Powell Plain, and Ramey Incised vessels, including examples of Angelo and Ramey in direct association. Petrographic analysis was conducted on seven grit-tempered and six shell-tempered vessels, eight of which are stylistically Mississippian. The results indicate that four of eight Mississippian vessels were likely manufactured

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Phelps, Quinton E., Gregory W. Whitledge, Sara J. Tripp, et al. "Identifying river of origin for age-0 Scaphirhynchus sturgeons in the Missouri and Mississippi rivers using fin ray microchemistry." Canadian Journal of Fisheries and Aquatic Sciences 69, no. 5 (2012): 930–41. http://dx.doi.org/10.1139/f2012-038.

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Understanding linkages between natal and nursery habitats is critical for conservation of riverine fishes. Scaphirhynchus sturgeons inhabiting the middle Mississippi River may originate from the Missouri or Mississippi rivers, although relative importance of these recruitment sources is unknown. We characterized the relationship between water and sturgeon fin ray Sr:Ca, verified shifts in water Sr:Ca are recorded in age-0 sturgeon fin rays, and determined whether age-0 sturgeons from the Mississippi and Missouri rivers exhibited distinct fin ray Sr:Ca signatures. Fin ray Sr:Ca of laboratory-re

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4

Jackson, Colin R., Justin J. Millar, Jason T. Payne, and Clifford A. Ochs. "Free-Living and Particle-Associated Bacterioplankton in Large Rivers of the Mississippi River Basin Demonstrate Biogeographic Patterns." Applied and Environmental Microbiology 80, no. 23 (2014): 7186–95. http://dx.doi.org/10.1128/aem.01844-14.

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ABSTRACTThe different drainage basins of large rivers such as the Mississippi River represent interesting systems in which to study patterns in freshwater microbial biogeography. Spatial variability in bacterioplankton communities in six major rivers (the Upper Mississippi, Missouri, Illinois, Ohio, Tennessee, and Arkansas) of the Mississippi River Basin was characterized using Ion Torrent 16S rRNA amplicon sequencing. When all systems were combined, particle-associated (>3 μm) bacterial assemblages were found to be different from free-living bacterioplankton in terms of overall community s

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5

Zeisler-Vralsted, Dorothy. "African Americans and the Mississippi River: Race, history and the environment." Thesis Eleven 150, no. 1 (2019): 81–101. http://dx.doi.org/10.1177/0725513618822010.

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Long touted in literary and historical works, the Mississippi River remains an iconic presence in the American landscape. Whether referred to as ‘Old Man River’ or the ‘Big Muddy,’ the Mississippi River represents imageries ranging from pastoral and Acadian to turbulent and unpredictable. But these imageries – revealed through the cultural production of artists, writers and even filmmakers – did not adequately reflect the experiences of everyone living and working along the river. The African-American community and its relationship to the Mississippi River down the ages is occluded by these di

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Porreca, Anthony P., William D. Hintz, Gregory W. Whitledge, Neil P. Rude, Edward J. Heist, and James E. Garvey. "Establishing ecologically relevant management boundaries: linking movement ecology with the conservation ofScaphirhynchussturgeon." Canadian Journal of Fisheries and Aquatic Sciences 73, no. 6 (2016): 877–84. http://dx.doi.org/10.1139/cjfas-2015-0352.

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We investigated the environmental life history of widely distributed threatened and endangered sturgeons in large rivers of the central United States that experience different regulatory regimes and management priorities. Using microchemistry techniques, our goal was to assess how to improve species conservation by dampening the incongruity that often occurs between management and species’ ecological requirements, particularly at large spatial scales. Pallid sturgeon (Scaphirhynchus albus), shovelnose sturgeon (Scaphirhynchus platorynchus), and their hybrids were analyzed for88Sr and44Ca and r

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Wasklewicz, Thad, Scott Franklin, and Jack Grubaugh. "Assessing the use of the Upper Mississippi River as a model for rehabilitation of the Lower Mississippi River." Large Rivers 15, no. 1-4 (2003): 1–15. http://dx.doi.org/10.1127/lr/15/2003/1.

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Kolker, Alexander S., H. Dallon Weathers, Christy Swann, and Alisha A. Renfro. "Distributary development in a 21st century river: The evolution of Neptune Pass and its delta, the largest new offshoot of the Mississippi River." PLOS ONE 20, no. 4 (2025): e0320502. https://doi.org/10.1371/journal.pone.0320502.

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The development of distributaries in large river deltas plays an important role in the geology, hydrology, and ecology of the coastal ocean, as large rivers are a dominant mechanism by which particulate, suspended, and dissolved material is delivered from the continents to the global ocean. And yet, there is relatively little, near-real time observational data on the development of distributaries in large river deltas -- in part because the development of modern observation coincides with an era when rivers have been controlled by large engineering projects (i.e., the 20th and 21st centuries).

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9

Killgore, Kenneth J., Jan J. Hoover, William T. Slack, et al. "Population characteristics of silver carp from the source of their North American introduction in the Lower Mississippi River." Aquatic Invasions 19, no. 3 (2024): 329–43. http://dx.doi.org/10.3391/ai.2024.19.3.133295.

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Silver carp, Hypophthalmichthys molitrix, escaped into the Lower Mississippi River (LMR) over 50 years ago, established reproductive populations, and spread across much of the Mississippi River Basin. Demographic rates of silver carp are needed to inform decisions on control and management of this invasive species, but have not been published for the LMR. The purpose of this paper is to report silver carp age and growth estimates from fish collected in riverine (mainstem) and backwater (lake) habitats in the LMR during the period 2011–2019, to compare our results with populations from other ge

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10

Killgore, Kenneth J., Jan J. Hoover, William T. Slack, et al. "Population characteristics of silver carp from the source of their North American introduction in the Lower Mississippi River." Aquatic Invasions 19, no. (3) (2024): 329–43. https://doi.org/10.3391/ai.2024.19.3.133295.

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Silver carp, <i>Hypophthalmichthys molitrix</i>, escaped into the Lower Mississippi River (LMR) over 50 years ago, established reproductive populations, and spread across much of the Mississippi River Basin. Demographic rates of silver carp are needed to inform decisions on control and management of this invasive species, but have not been published for the LMR. The purpose of this paper is to report silver carp age and growth estimates from fish collected in riverine (mainstem) and backwater (lake) habitats in the LMR during the period 2011–2019, to compare our results with populations from o

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Zwiers, Maarten. "Plantationocene Geographies: Petro-Multinationals, Agribusiness, and the Racial Ecology of the Cold War Mississippi Delta." Global South 16, no. 2 (2023): 49–67. http://dx.doi.org/10.2979/gbs.2023.a908602.

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ABSTRACT: The Cold War Mississippi Delta figured prominently as a hotbed of massive resistance against racial integration and as a civil rights battleground, particularly during the 1950s and 1960s. It was also home to an agrochemical regime of plantation production that heavily impacted regional ecosystems. This essay addresses the interplay between white supremacist politics and environmentally destructive forms of large-scale farming, especially the connections between petrochemical manufacturing in Louisiana and plantation agriculture in Mississippi's Delta region. I discuss how a Jim Crow

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Zwiers, Maarten. "Plantationocene Geographies: Petro-Multinationals, Agribusiness, and the Racial Ecology of the Cold War Mississippi Delta." Global South 16, no. 2 (2023): 49–67. http://dx.doi.org/10.2979/globalsouth.16.2.04.

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ABSTRACT: The Cold War Mississippi Delta figured prominently as a hotbed of massive resistance against racial integration and as a civil rights battleground, particularly during the 1950s and 1960s. It was also home to an agrochemical regime of plantation production that heavily impacted regional ecosystems. This essay addresses the interplay between white supremacist politics and environmentally destructive forms of large-scale farming, especially the connections between petrochemical manufacturing in Louisiana and plantation agriculture in Mississippi's Delta region. I discuss how a Jim Crow

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13

Krug, E. C., and K. Merrifield. "Marine modification of terrestrial influences on Gulf hypoxia: Part II." Hydrology and Earth System Sciences 11, no. 1 (2007): 191–209. http://dx.doi.org/10.5194/hess-11-191-2007.

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Abstract. This study examines potential marine modification of two classes of terrestrial influence on Gulf hypoxia: (1) the flow of nutrient-rich water from the Mississippi/Atchafalaya River Basin and (2) the massive physical, hydrological, chemical and biological change associated with the Atchafalaya’s partial capture of the Mississippi River. The latter involves repartitioning of a total flow of about 20 000 m3 sec−1, equal to that of 13 Nile Rivers, and a sediment load of 210 million metric tonnes yr−1,nearly 20 times that delivered by all of the rivers of the East Coast of the USA. Also

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14

Peregrine, Peter. "A Graph-Theoretic Approach to the Evolution of Cahokia." American Antiquity 56, no. 1 (1991): 66–75. http://dx.doi.org/10.2307/280973.

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Many researchers have linked the evolution of the prehistoric center Cahokia to its location near the confluence of the Mississippi, Missouri, and Illinois rivers. It is possible to evaluate this idea mathematically through the graph-theoretic concept of centrality. The analysis suggests that Cahokia was located at the point of highest centrality in the Mississippi River drainage.

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Benson, Larry V., Timothy R. Pauketat, and Edward R. Cook. "Cahokia$s Boom and Bust in the Context of Climate Change." American Antiquity 74, no. 3 (2009): 467–83. http://dx.doi.org/10.1017/s000273160004871x.

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During the early Mississippian Lohmann phase (A.D. 1050-1100), the American Bottom experienced a political and economic transformation. This transformation included the abrupt planned construction of central Cahokia, a large-scale influx of people to "downtown Cahokia," the abandonment of pre-Mississippian village settlements, the reorganization of farming in the Mississippi River floodplain, and the founding of the Richland farming complex in the Illinois uplands. New tree-ring-based records of climate change indicate that this rapid development occurred during one of the wettest 50-year peri

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16

Xu, K., and S. L. Yang. "A comparative study of the flux and fate of the Mississippi and Yangtze river sediments." Proceedings of the International Association of Hydrological Sciences 367 (March 3, 2015): 312–19. http://dx.doi.org/10.5194/piahs-367-312-2015.

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Abstract. Large rivers play a key role in delivering water and sediment into the global oceans. Large-river deltas and associated coastlines are important interfaces for material fluxes that have a global impact on marine processes. In this study, we compare water and sediment discharge from Mississippi and Yangtze rivers by assessing: (1) temporal variation under varying climatic and anthropogenic impacts, (2) delta response of the declining sediment discharge, and (3) deltaic lobe switching and Holocene sediment dispersal patterns on the adjacent continental shelves. Dam constructions have d

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17

Bird, Broxton W., Jeremy J. Wilson, Jaime Escobar, George D. Kamenov, Harvie J. Pollard, and G. William Monaghn. "Pre-Columbian lead pollution from Native American galena processing and land use in the midcontinental United States." Geology 47, no. 12 (2019): 1193–97. http://dx.doi.org/10.1130/g46673.1.

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Abstract The presence and sources of pre-Columbian (before 1492 CE) lead (Pb) pollution in the midcontinental United States were investigated using geochemical and Pb isotope analyses on sediment cores recovered from Avery Lake, a floodplain lake located directly adjacent to the Kincaid Mounds archaeological site on the lower Ohio River, Illinois. Geochemical results indicate the presence of Pb pollution during the Baumer (300 BCE to 300 CE) and Mississippian (1150–1450 CE) occupations, and since the 1800s. Pb isotope results link Mississippian Pb pollution to the processing and use of galena

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18

Stroulia, Anna, Michael Strezewski, Ryan M. Parish, and Melody K. Pope. "The Other Large Bifaces: Late Mississippian Woodworking Tools from Southwestern Indiana." Midcontinental Journal of Archaeology 47, no. 3 (2022): 277–310. http://dx.doi.org/10.5406/23274271.47.3.03.

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Abstract Mississippian cultures left behind two types of large utilitarian bifaces: hoes and so-called woodworking tools. The former have attracted considerable scholarly attention, while the latter have not. We attempt to address this bias by focusing on a substantial number of woodworking tools from three sites in southwestern Indiana. All belong to Caborn-Welborn, a late Mississippian culture that developed at the Ohio-Wabash confluence after the decline of the Angel polity and the establishment of the “Vacant Quarter” across a large portion of the Mississippi and Ohio River valleys. In thi

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Wesler, Kit W. "Ceramics, Chronology, and Horizon Markers at Wickliffe Mounds." American Antiquity 56, no. 2 (1991): 278–90. http://dx.doi.org/10.2307/281419.

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The area around the confluence of the Ohio and Mississippi rivers has become a sharp focus of discussion about late Mississippian developments. The debate largely is based on the presence or absence of artifacts thought to be protohistoric or contact period horizon markers. Late deposits at Wickliffe Mounds (15BA4) have produced two such artifacts: astragalus dice and a head-effigy pot. Close study of the ceramic sequence and associated radiocarbon dates indicates that both “horizon markers” belong to the late prehistoric period of western Kentucky, and that neither can settle the debate about

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20

Dettmers, John M., Steve Gutreuter, David H. Wahl, and Daniel A. Soluk. "Patterns in abundance of fishes in main channels of the upper Mississippi River system." Canadian Journal of Fisheries and Aquatic Sciences 58, no. 5 (2001): 933–42. http://dx.doi.org/10.1139/f01-046.

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Abundance of fishes of the main channels of the upper Mississippi River system and of other large North American rivers is largely unknown because historic sampling methods have been inadequate. We used a bottom trawl to estimate spatial and temporal patterns in abundance in the navigation channels of Pool 26 of the Mississippi River and the lower Illinois River. Total biomass density averaged 21 and 29 kg·ha1 in the navigation channels of Pool 26 and the lower Illinois River, respectively. We identified spatial and temporal patterns in catches of key species using a generalized linear model

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WELSH, STUART A., and ROBERT M. WOOD. "Crystallaria cincotta, a new species of darter (Teleostei: Percidae) from the Elk River of the Ohio River drainage, West Virginia." Zootaxa 1680, no. 1 (2008): 62. http://dx.doi.org/10.11646/zootaxa.1680.1.5.

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A new species of percid, Crystallaria cincotta, is described from the Cumberland, Elk, Green, and Muskingum river drainages of the Ohio River basin, USA. It differs from populations of Crystallaria asprella of the Gulf Coast, lower Mississippi River, middle Mississippi River, upper Mississippi River, and Wabash River drainages by having a reduced number of cheek scale rows restricted to the post-orbital region, a falcate margin on the pelvic fins, a preorbital blotch distinctly separate from the anterior orbital rim, and a wide mouth gape. The Elk River population is also divergent genetically

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22

Duan, Shuiwang, Thomas S. Bianchi, Peter H. Santschi, and Rainer M. W. Amon. "Effects of tributary inputs on nutrient export from the Mississippi and Atchafalaya Rivers to the Gulf of Mexico." Marine and Freshwater Research 61, no. 9 (2010): 1029. http://dx.doi.org/10.1071/mf09235.

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In order to better understand the seasonal patterns of nutrient loadings from the Mississippi River to the Gulf of Mexico, nutrient mass balance analyses were performed for the Mississippi River system to separate the effects of primary tributary inputs from in-channel processes. Our results showed that seasonal changes in dissolved inorganic nutrients resulted from conservative mixing of primary tributaries. Maximal values of nitrate plus nitrite (NO3+2) and soluble reactive phosphorus (SRP) fluxes during May through July were largely attributed to inputs from the upper Mississippi River (UMR

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Steponaitis, Vincas P., M. James Blackman, and Hector Neff. "Large-Scale Patterns in the Chemical Composition of Mississippian Pottery." American Antiquity 61, no. 3 (1996): 555–72. http://dx.doi.org/10.2307/281840.

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Neutron activation analysis of Mississippian sherds from 21 regions across the Southeast has revealed the existence of distinctive chemical groups that are associated with four large geographical areas. One such group is associated with sites along the Mississippi River and its western tributaries, a second is associated with sites on the Appalachian Rim in Tennessee, a third is associated with sites on the Piedmont and associated drainages, and a fourth is associated with sites in Alabama. This pattern reflects the existence of several large, clay-mineral provinces in the Southeast that now c

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Kim, John. "The fourth coast, revisited." Anthropocene Review 8, no. 3 (2021): 241–49. http://dx.doi.org/10.1177/20530196211044620.

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The author traveled for 2.5 months by canoe and other modes of transport down the entire length of the Mississippi River with the Mississippi. An Anthropocene River project. Reflecting on this journey, this essay revisits Catherine Brown and William Morrish’s 1991 essay, The Fourth Coast: An Expedition on the Mississippi River, in which Brown and Morrish document their research efforts to identify coherent anthropogenic structures and systems that could warrant the characterization of the Mississippi River as a Fourth Coast. To encourage a flourishing of overlapping multispecies life, the essa

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Hamel, Martin J., Mark A. Pegg, Reuben R. Goforth, et al. "Range-wide age and growth characteristics of shovelnose sturgeon from mark–recapture data: implications for conservation and management." Canadian Journal of Fisheries and Aquatic Sciences 72, no. 1 (2015): 71–82. http://dx.doi.org/10.1139/cjfas-2014-0238.

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We used mark–recapture data from shovelnose sturgeon (Scaphirhynchus platorynchus) to describe range-wide growth characteristics and developed a model to estimate ages. Data were solicited throughout much of the current distribution of shovelnose sturgeon, specifically from the mainstem Missouri and Mississippi rivers and their tributaries. Shovelnose sturgeon exhibited variable growth among locations; however, adult fish exhibited almost no growth after they reached a particular size, presumably the size at sexual maturity. Shovelnose sturgeon from the Mississippi River basin attained greater

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26

Milner, George R. "Mississippian Period Population Density in a Segment of the Central Mississippi River Valley." American Antiquity 51, no. 2 (1986): 227–38. http://dx.doi.org/10.2307/279938.

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Recent archaeological investigations of Mississippian period (A.D. 1000–1400) sites permit the development of population estimates for an area immediately south of Cahokia, the largest prehistoric site in North America. Population estimates are derived from the number of structures at 11 sites, with the amount of prehistorically habitable land being incorporated as part of the estimating procedure. Population density increased somewhat during the earliest two of four Mississippian phases, reaching its peak during the Stirling phase. Thereafter, population decreased, reaching its lowest point d

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Abu El-Ella, Ramadan. "Characteristics of moment measures derived from Mississippi River deltaic sediments." Neues Jahrbuch für Geologie und Paläontologie - Monatshefte 1986, no. 1 (1986): 1–10. http://dx.doi.org/10.1127/njgpm/1986/1986/1.

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Wissel, Björn, and Brian Fry. "Sources of Particulate Organic Matter in the Mississippi River, USA." Large Rivers 15, no. 1-4 (2003): 105–18. http://dx.doi.org/10.1127/lr/15/2003/105.

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Martinez, Osvaldo, Silas R. Bergen, and Jacob B. Gareis. "Comparison of Yamuna (India) and Mississippi River (United States of America) bacterial communities reveals greater diversity below the Yamunotri Glacier." PLOS ONE 19, no. 7 (2024): e0304664. http://dx.doi.org/10.1371/journal.pone.0304664.

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The Yamuna River in India and the Mississippi River in the United States hold significant commercial, cultural, and ecological importance. This preliminary survey compares the bacterial communities sampled in surface waters at 11 sites (Yamuna headwaters, Mississippi headwaters, Yamuna River Yamunotri Town, Mississippi River at Winona, Tons River, Yamuna River at Paonta Sahib, Yamuna River Delhi-1, Yamuna River Delhi-2, Yamuna River before Sangam, Sangam, Ganga River before Sangam). Bacterial 16S rDNA analyses demonstrate dominance of Proteobacteria and Bacteroidetes phyla. Actinobacteria were

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McCartha, Grace L., Caitlyn M. Sims, Brendan J. Kosnik, et al. "Flora of six Lower Mississippi River islands (U.S.A.)." Journal of the Botanical Research Institute of Texas 17, no. 1 (2023): 281–311. http://dx.doi.org/10.17348/jbrit.v17.i1.1297.

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Lower Mississippi River islands are part of the last remaining floodplain habitat of the river, and studying their biodiversity is important to understand the river ecosystem. We conducted a floristic survey of six Lower Mississippi River islands between river miles 668 and 526 in southern Arkansas and northern Mississippi. These islands contain a variety of habitats and span a range of sizes, from 106 to 697 vegetated hectares. We identified 491 taxa (485 species plus six infraspecific taxa) from 2,310 specimens collected from June 2020 to December 2021. These taxa are within 89 families and

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Mason, Joseph A., Edward A. Nater, and Howard C. Hobbs. "Transport Direction of Wisconsinan Loess in Southeastern Minnesota." Quaternary Research 41, no. 1 (1994): 44–51. http://dx.doi.org/10.1006/qres.1994.1005.

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AbstractA study of Wisconsinan loess in part of southeastern Minnesota confirms earlier suggestions that much of the loess in this region was not derived flora the floodplain of the Mississippi River. Two Wisconsinan loess units, the Peoria Loess and Roxana Silt, occur in the study area. Peoria Loess, 1-8 m thick, fines systematically eastward from an abrupt western border toward the Mississippi. There are no apparent grain-size trends away from other adjacent rivers. Peoria Loess thickness generally decreases eastward, but is highly variable, probably because of differential erosion. Potentia

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Verma, Neeharika, Steven Lohrenz, Sumit Chakraborty, and Cédric G. Fichot. "Underway Hyperspectral Bio-Optical Assessments of Phytoplankton Size Classes in the River-Influenced Northern Gulf of Mexico." Remote Sensing 13, no. 17 (2021): 3346. http://dx.doi.org/10.3390/rs13173346.

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High inflows of freshwater from the Mississippi and Atchafalaya rivers into the northern Gulf of Mexico during spring contribute to strong physical and biogeochemical gradients which, in turn, influence phytoplankton community composition across the river plume–ocean mixing zone. Spectral features representative of bio-optical signatures of phytoplankton size classes (PSCs) were retrieved from underway, shipboard hyperspectral measurements of above-water remote sensing reflectance using the quasi-analytical algorithm (QAA_v6) and validated against in situ pigment data and spectrophotometric an

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Sparks, Richard E., and Ruth M. Sparks. "The Mississippi River." Ecological Restoration 10, no. 1 (1992): 39–44. http://dx.doi.org/10.3368/er.10.1.39.

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Laurent, A., K. Fennel, J. Hu, and R. Hetland. "Simulating the effects of phosphorus limitation in the Mississippi and Atchafalaya River plumes." Biogeosciences Discussions 9, no. 5 (2012): 5625–57. http://dx.doi.org/10.5194/bgd-9-5625-2012.

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Abstract. The continental shelf of the northern Gulf of Mexico receives high dissolved inorganic nitrogen and phosphorus loads from the Mississippi and Atchafalaya rivers. The nutrient load results in high primary production in the river plumes and contributes to the development of hypoxia on the Texas-Louisiana shelf in summer. While phytoplankton growth is considered to be typically nitrogen-limited, phosphorus limitation has been observed in this region during periods of peak river discharge in spring and early summer. Here we investigate the presence, spatio-temporal distribution and impli

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Laurent, A., K. Fennel, J. Hu, and R. Hetland. "Simulating the effects of phosphorus limitation in the Mississippi and Atchafalaya River plumes." Biogeosciences 9, no. 11 (2012): 4707–23. http://dx.doi.org/10.5194/bg-9-4707-2012.

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Abstract. The continental shelf of the northern Gulf of Mexico receives high dissolved inorganic nitrogen and phosphorus loads from the Mississippi and Atchafalaya rivers. The nutrient load results in high primary production in the river plumes and contributes to the development of hypoxia on the Louisiana shelf in summer. While phytoplankton growth is considered to be typically nitrogen-limited in marine waters, phosphorus limitation has been observed in this region during periods of peak river discharge in spring and early summer. Here we investigate the presence, spatio-temporal distributio

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Meulemans, Matthew J., Christopher S. Jones, Keith E. Schilling, Nathan C. Young, and Larry J. Weber. "Assessment of Spatial Nitrate Patterns in An Eastern Iowa Watershed Using Boat-Deployed Sensors." Water 12, no. 1 (2020): 146. http://dx.doi.org/10.3390/w12010146.

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Water quality sensors deployed on boats, buoys, and fixed monitoring stations along rivers allow high frequency monitoring at dense spatial and temporal resolutions. Research characterizing nitrate (NO3–N) delivery along extended reaches of navigable rivers, however, is sparse. Since land use and stream biogeochemistry can vary within agricultural watersheds, identifying detailed spatial patterns of stream NO3–N can help identify source area contributions that can be used to develop strategies for water quality improvement. Identifying spatial patterns is especially critical in agricultural wa

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Holle, Chas G. "SEDIMENTATION AT THE MOUTH OF THE MISSISSIPPI RIVER." Coastal Engineering Proceedings 1, no. 2 (2000): 10. http://dx.doi.org/10.9753/icce.v2.10.

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Sedimentation it the mouth of the Mississippi River is a phenomenon that has been under study by the Corps of Engineers, Department of the Army, during the past 120 years. The primary objective in these investigations has been the determination of the most economical method of maintaining required navigation depths through the Mississippi River Passes for oceangoing vessels that serve the Ports of New Orleans, Baton Rouge, and indirectly the vast Mississippi Valley river traffic.

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Shell, Ryan, and Nicholas Gardner. "Movement of the bull shark (Carcharhinus leucas) in the upper Mississippi River Basin, North America." Marine and Fishery Sciences (MAFIS) 34, no. 2 (2021): 263–67. http://dx.doi.org/10.47193/mafis.3422021010607.

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Rare appearances of bull sharks (Carcharhinus leucas) in river systems and other freshwater ecosystems have been reported from five continents. The wide geographic range of this phenomenon, the physiological adaptations of this species to allow for movement into rivers, and a fossil record in the Miocene Epoch, all imply that this behavior has a long history. In the Mississippi River basin, however, only two specimens were captured in the river’s upper portion during the entire 20th century. Further historical, archeological, and paleontological records of these animals appearing farther than

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Smith, M., and S. J. Bentley. "Sediment capture in flood plains of the Mississippi River: A case study in Cat Island National Wildlife Refuge, Louisiana." Proceedings of the International Association of Hydrological Sciences 367 (March 3, 2015): 442–46. http://dx.doi.org/10.5194/piahs-367-442-2015.

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Abstract. To plan restoration of the Mississippi River Delta, it is imperative to know how much sediment the Mississippi River currently provides. Recent research has demonstrated that between Tarbert Landing and St Francisville on the Mississippi, as much as 67 million metric tons (Mt) per year is lost from river transport, of which ~16 Mt is muddy suspended sediment. So where does this sediment go? Two pathways for loss have been proposed: riverbed storage, and overbank deposition in regions that lack manmade levées. Cat Island National Wildlife Refuge, on the unleveed Mississippi River east

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Blum, Mike. "Organization and reorganization of drainage and sediment routing through time: the Mississippi River system." Geological Society, London, Special Publications 488, no. 1 (2019): 15–45. http://dx.doi.org/10.1144/sp488-2018-166.

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AbstractIt has been said that large rivers are the bloodlines of continents, and the Mississippi River system is the most prominent bloodline in North America. The Mississippi drainage stretches from the Rocky Mountains in the western USA to the Appalachian Cordillera in the east, and sediment from this vast area is then routed to the alluvial–deltaic plain of south Louisiana and the basin-floor fan in the deep Gulf of Mexico (GoM). Origins of the Mississippi system can be traced to the Late Cretaceous–Early Paleocene reorganization of North American drainage. However, integration of a contine

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Chen, Ying, Jun Liu, Lu Ma, and Ning Sun. "Comparative Analysis of the Huaihe River Flood and the Mississippi River Flood and Treatment of the Huaihe Flood." Advanced Materials Research 1065-1069 (December 2014): 2937–41. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.2937.

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This paper analyzed and compared the genesis of the Huaihe River flood and the Mississippi River flood. Introducing the concept of Mississippi River treatment, the establishment of sea-entering channel, to govern the Huaihe River. In the site, considering the Huaihe River along geographic, cultural, economic and other factors to determine the location of sea-entering channel.

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Duell, Rebecca S., and Matthew S. Van Den Broeke. "Climatology, Synoptic Conditions, and Misanalyses of Mississippi River Valley Drylines." Monthly Weather Review 144, no. 3 (2016): 927–43. http://dx.doi.org/10.1175/mwr-d-15-0108.1.

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Abstract The dryline is an important focal point for convection initiation. Although drylines most commonly occur on the southern Great Plains, dryline passages and subsequent severe weather outbreaks have been documented in the Mississippi River valley. This study presents a 15-yr (1999–2013) climatology of these Mississippi River valley drylines and associated severe weather. Additionally, synoptic patterns are identified that may result in drylines moving atypically far eastward into the Mississippi River valley. In total, 39 Mississippi River valley drylines (hereafter referred to as MRV d

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Seeb, James E., Lisa W. Seeb, David W. Oates, and Fred M. Utter. "Genetic Variation and Postglacial Dispersal of Populations of Northern Pike (Esox lucius) in North America." Canadian Journal of Fisheries and Aquatic Sciences 44, no. 3 (1987): 556–61. http://dx.doi.org/10.1139/f87-068.

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We studied the genetic relationships and postglacial dispersal of northern pike (Esox lucius) populations in North America using allozyme data. Allelic products of up to 65 protein coding loci were examined in eight populations: five from drainages in western Canada, flowing into Hudson Bay and the Beaufort Sea; two from the Missouri River drainage, flowing into the Mississippi River; and one from the upper Mississippi River drainage, flowing into the Gulf of Mexico. Only two polymorphic loci were identified, Est-1 and Ck-1, and the average observed heterozygosity was only 0.001, much lower th

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Ludwig, Eric J., Veronica M. Lee, Leah K. Berkman, Aaron D. Geheber, and David D. Duvernell. "Biodiversity Assessment of a Mississippi River Backwater Complex Using eDNA Metabarcoding." Diversity 16, no. 8 (2024): 495. http://dx.doi.org/10.3390/d16080495.

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The backwater lowland habitats of large rivers, like the Mississippi River in North America, present complex and often inaccessible environments for traditional capture-based fish biodiversity sampling. Our knowledge of the assemblages of the fishes that occupy such habitats is often incomplete, and this can compromise management efforts. We employed environmental DNA (eDNA) metabarcoding methods to sample a Mississippi River bottom wetland system to assess the ichthyofaunal diversity and the assemblage structure across habitat types, and we compared our results with capture-based survey recor

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Locci, Daniel. "Student Zone: Students utilize geophysics to investigate flooding on campus." Leading Edge 41, no. 3 (2022): 214–15. http://dx.doi.org/10.1190/tle41030214.1.

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Earthen levees provide protection for cities and agricultural land from Mississippi River floods in the Lower Mississippi River Valley. During high-water-level stages in the Mississippi River, the protected side of levees can experience sand boils and seeps created by hazardous groundwater pressure. These conditions present a hazard to the community as well as to public and private infrastructure. In particular, the School of Veterinary Medicine at Louisiana State University (LSU) experiences yearly basement flooding from seepage, despite attempts to improve groundwater flow pressure through t

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Tansey, Bob, Zhao Yimin, Yang Bo, Yao Weizhi, Chen Daqing, and Lou Weili. "The Yangtze-Mississippi river EcoPartnership: Bringing together two great rivers." Journal of Renewable and Sustainable Energy 7, no. 4 (2015): 041513. http://dx.doi.org/10.1063/1.4929596.

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Randolph, Ned. "River Activism, “Levees-Only” and the Great Mississippi Flood of 1927." Media and Communication 6, no. 1 (2018): 43–51. http://dx.doi.org/10.17645/mac.v6i1.1179.

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This article investigates media coverage of 19th and early 20th century river activism and its effect on federal policy to control the Mississippi River. The U.S. Army Corps of Engineers’ “levees-only” policy—which joined disparate navigation and flood control interests—is largely blamed for the Great Flood of 1927, called the largest peacetime disaster in American history. River activists organized annual conventions, and later, professional lobbies organized media campaigns up and down the Mississippi River to sway public opinion and pressure Congress to fund flood control and river navigati

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Yodis, Elaine G., and Richard H. Kesel. "The effects and implications of base-level changes to Mississippi River Tributaries." Zeitschrift für Geomorphologie 37, no. 4 (1993): 385–402. http://dx.doi.org/10.1127/zfg/37/1993/385.

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Clausen, Eric. "Use of Topographic Map Evidence to Locate a New Cenozoic Glacial History Paradigm’s Deep “Hole” Rim in Northeast New Mexico and Southern Colorado, USA." Journal of Geography and Geology 14, no. 1 (2022): 28. http://dx.doi.org/10.5539/jgg.v14n1p28.

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A recently proposed Cenozoic geology and glacial history paradigm requires a thick North American continental ice sheet to have been located within an ice sheet created and occupied deep &ldquo;hole&rdquo; and predicts large south-oriented meltwater floods flowed across the deep &ldquo;hole&rsquo;s&rdquo; southern rim before rim uplift progressively diverted floodwaters toward the Mississippi River valley, which in time became the only deep &ldquo;hole&rdquo; southern exit (the accepted paradigm does not recognize such an ice sheet created deep &ldquo;hole&r

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Chick, John H., Lori A. Soeken-Gittinger, Eric N. Ratcliff, Eric J. Gittinger, Benjamin J. Lubinski, and Rob E. Maher. "A decade of monitoring on Pool 26 of the upper Mississippi River System." Illinois Natural History Survey Bulletin 39, no. 1-6 (2013): 323–420. http://dx.doi.org/10.21900/j.inhs.v39.105.

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We present information gleaned from 10 years of data collected by the water quality component of the Upper Mississippi River Restoration Environmental Management Program’s Long Term Resource Monitoring Program (LTRMP) from Pool 26 of the Upper Mississippi River System (UMRS). The Pool 26 reach of the UMRS includes the confluence with the Illinois River, and the confluence with the Missouri River just downstream of Mel Price Locks and Dam. The surrounding communities in both Illinois and Missouri benefit greatly from the natural resources provided by these rivers. We estimate that annual expend

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