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You searched for: Subject fish Remove constraint Subject: fish Subject dams (hydrology) Remove constraint Subject: dams (hydrology) Subject Mississippi River Remove constraint Subject: Mississippi River
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1. Reweaving river food webs through time

Author:
Bowes, Rachel E.; Thorp, James H.; Delong, Michael D.
Source:
Freshwater biology 2020 v.65 no.3 pp. 390-402
ISSN:
0046-5070
Subject:
C3 plants; C4 plants; Cyanobacteria; algae; amino acids; anthropogenic activities; aquatic ecosystems; aquatic food webs; benthic organisms; carbon; dams (hydrology); environmental impact; fish; habitats; isotope labeling; museums; nitrogen; phytoplankton; primary productivity; rivers; stable isotopes; temperature; Mississippi River; Ohio River
Abstract:
... Our project sought to determine ecological effects of adding low‐head dams and levees to large rivers by examining potential changes to aquatic food webs over a 70‐year period in the Lower Ohio River (LOR) and Upper Mississippi River (UMR). We employed museum collections of fish and compound specific stable isotope analysis of amino acids to evaluate long‐term changes in primary food sources for m ...
DOI:
10.1111/fwb.13432

2. Possible Large-Scale Hybridization and Introgression Between Longnose Gar (Lepisosteus osseus) and Shortnose Gar (Lepisosteus platostomus) in The Fox River Drainage, Wisconsin

Author:
Lyons, John; Sipiorski, Justin T.
Source:
TheAmerican midland naturalist 2020 v.183 no.1 pp. 105-115
ISSN:
0003-0031
Subject:
Lepisosteus; basins; cytochrome b; dams (hydrology); drainage; fish; habitats; hybrids; introgression; lakes; phylogeny; riparian areas; rivers; spawning; watersheds; Lake Michigan; Mississippi River; Missouri River; Wisconsin
Abstract:
... Hybridization among gar species (Pisces: Family Lepisosteidae) has only recently been documented, and relatively few occurrences have been reported. In the Fox River drainage of the Lake Michigan Basin in Wisconsin, apparent hybrids and introgressed individuals (hereafter “hybrids”) of Longnose Gar (Lepisosteus osseus) and Shortnose Gar (L. platostomus) were widespread and numerous, constituting a ...
DOI:
10.1637/19-043

3. The Effect of Modifying a CFD-AB Approach on Fish Passage through a Model Hydraulic Dam

Author:
Gilmanov, Anvar; Zielinski, Daniel; Voller, Vaughan; Sorensen, Peter
Source:
Water 2019 v.11 no.9
ISSN:
2073-4441
Subject:
Hypophthalmichthys nobilis; computer simulation; dams (hydrology); fish; fluid mechanics; invasive species; models; swimming; Mississippi River; United States
Abstract:
... The threat of invasive bigheaded carp swimming into the upper reaches of the Mississippi River (USA) demands new and effective approaches to block these species. To explore how navigational Lock and Dams (LDs) on the Mississippi River could be used to deter the upstream migration of invasive fish species, computer modelling that combined computational fluid dynamics (CFD) and agent-based (AB) fish ...
DOI:
10.3390/w11091776

4. Extended Water-Level Drawdowns in Dammed Rivers Enhance Fish Habitat: Environmental Pool Management in the Upper Mississippi River

Author:
Coulter, A. A.; Adams, S. R.; Flinn, M. B.; Whiles, M. R.; Burr, B. M.; Sheehan, R. J.; Garvey, J. E.
Source:
Environmental management 2019 v.63 no.1 pp. 124-135
ISSN:
0364-152X
Subject:
adaptive management; autumn; base flow; biodiversity; dams (hydrology); ecological function; environmental health; fish; floodplains; habitats; life history; rivers; summer; vegetation; Mississippi River
Abstract:
... Environmental Pool Management (EPM) can improve ecosystem function in rivers by restoring aspects of the natural flow regime lost to dam construction. EPM recreates summer baseflow conditions and promotes the growth of terrestrial vegetation which is inundated in the fall, thereby improving habitat heterogeneity for many aquatic taxa. A three-year experiment was conducted wherein terrestrial flood ...
DOI:
10.1007/s00267-018-1116-4

5. Survival of fish passing downstream at a small hydropower facility

Author:
Amaral, Stephen V.; Coleman, Benjamin S.; Rackovan, Jenna L.; Withers, Kelly; Mater, Benjamin
Source:
Marine & freshwater research 2018 v.69 no.12 pp. 1870-1881
ISSN:
1323-1650
Subject:
dams (hydrology); fish; fish communities; fluid mechanics; habitats; migratory behavior; probability; spillways; survival rate; water power; Mississippi River; United States
Abstract:
... Hydropower dams can negatively affect upstream and downstream migratory fish populations in many ways, such as blocking access to upstream habitats and causing injuries or mortality during downstream passage. For downstream passage at projects in the USA, federal regulators and agencies responsible for oversight of hydropower facilities typically require assessment studies and mitigation to addres ...
DOI:
10.1071/MF18123