Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Mark T. Steingraeber"'
Autor:
Whitney S. Thorpe, Daniel J. Hornbach, Michelle R. Bartsch, Mark C. Hove, Mark T. Steingraeber, Carrie L. Nelson, Dave J. Heath, Jennifer A. Bury, Jennifer E. Kurth, Marissa R. McGill, Teresa J. Newton
Publikováno v:
American Malacological Bulletin. 30:47-57
Early life history information on the federally endangered winged mapleleaf (Quadrula fragosa (Conrad, 1835)) mussel is needed by natural resource managers to improve conservation and propagation programs. We conducted four studies to obtain some of
Publikováno v:
The American Midland Naturalist. 157:297-311
The winged mapleleaf mussel [Quadrula fragosa (Conrad)] is a Federal endangered species. Controlled propagation to aid in recovering this species has been delayed because host fishes for its parasitic glochidia (larvae) are unknown. This study identi
Publikováno v:
Transactions of the American Fisheries Society. 133:160-172
Populations of paddlefish Polyodon spathula have been adversely affected by dams that can block their movements. Unlike high-head dams that preclude fish passage (unless they are equipped with fishways), the dams on the upper Mississippi River are ty
Publikováno v:
North American Journal of Fisheries Management. 23:189-205
We used radio telemetry to evaluate the movement and habitat use of paddlefish Polyodon spathula in the upper Mississippi River and two tributary rivers. Radio transmitters were surgically implanted into 71 paddlefish in Navigation Pools 5A and 8 of
Autor:
James G. Wiener, Mark T. Steingraeber
Publikováno v:
Regulated Rivers: Research & Management. 11:201-209
Burrowing mayfly nymphs (Ephemeroptera) inhabit and ingest fine-grained sediments and detritus that may be enriched with metals and persistent organic compounds. The burrowing nymphs can externally adsorb and internally assimilate these contaminants,
Publikováno v:
Canadian Journal of Fisheries and Aquatic Sciences. 51:1356-1367
We exposed juvenile bluegill (Lepomis macrochirus) to ~1000 mg∙L−1 of continuously suspended river sediment in a 28-d test with six treatments (randomized block with one sediment-free control and five sediments ranging from 1.3 to 21.4 μg Cd∙g
Publikováno v:
Environmental sciencetechnology. 28(4)
We determined polychlorinated biphenyls (PCBs) in emergent mayflies (Hexagenia bilineata) from a 1250-km reach of the upper Mississippi River (UMR). Total PCB concentrations (sum of 125 congeners) ranged from 0.21 to 4.1 μg/g of dry weight (1.2-29
Publikováno v:
Canadian Journal of Zoology. 69:2266-2276
Brook trout eyed eggs and subsequent alevins were exposed to pH 5.0, 6.5, and 7.0 in soft reconstituted water and to pH 8.2 in hard well water for up to 72 d. Hatching was delayed and hatching success reduced (p + > K+ > Cl− during yolk absorption
Autor:
Mark T. Steingraeber, Teresa J. Newton
Publikováno v:
Fact Sheet.
Publikováno v:
Archives of environmental contamination and toxicology. 23(1)
Burrowing mayflies (Hexagenia bilineata) were analyzed to assess longitudinal patterns in their cadmium and mercury content along the upper Mississippi River. Emergent mayflies (subimagoes and imagoes) were collected in 1988 at 34 sites (25 navigatio