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A Benthic Index of Biotic Integrity (B-IBI) for Rivers of the Tennessee Valley
The benthic index of biotic integrity (B—IBI) has potential as an assessment tool for streams, although more testing and evaluation of both the attributes and the index are warranted.
Potamopyrgus antipodarum: distribution, density, and effects on native macroinvertebrate assemblages in the Greater Yellowstone Ecosystem
- B. Kerans, M. Dybdahl, M. Gangloff, J. E. Jannot
- Environmental ScienceJournal of The North American Benthological…
- 1 March 2005
In the field experiment, high densities of P. antipodarum were associated with low colonization of other macroinvertebrates; thus, negative interactions between native macroin Vertebrate assemblages and P. anti-apartheid may have the potential to influence the large-scale distribution of other MacroinverTEbrates.
Aquatic Invertebrate Assemblages: Spatial and Temporal Differences among Sampling Protocols
- B. Kerans, J. Karr, S. A. Ahlstedt
- Environmental ScienceJournal of the North American Benthological…
- 1 December 1992
Replicated, quantitative sampling in both riffles and pools interpreted through a variety of biological attributes provides the strongest assessment of biological condition based on invertebrates.
Myxobolus cerebralis in Native Cutthroat Trout of the Yellowstone Lake Ecosystem
Exposure studies in 13 streams indicated that Pelican and Clear creeks and the Yellowstone River were positive for M. cerebralis; the highest prevalence (100%) and severity was found in Pelican Creek during 1999–2001.
Relation of Spawning and Rearing Life History of Rainbow Trout and Susceptibility to Myxobolus cerebralis Infection in the Madison River, Montana
Abstract The Madison River, Montana, is the site of a whirling disease epizootic among rainbow trout Oncorhynchus mykiss caused by the parasite Myxobolus cerebralis. We investigated how the timing…
Water Temperature Affects a Host–Parasite Interaction: Tubifex tubifex and Myxobolus cerebralis
How water temperature influenced changes in oligochaete population size and biomass and the release of TAMs in three genetically identified strains of T. tubifex when exposed and not exposed to M. cerebralis myxospores was examined.
Risk of Myxobolus cerebralis infection to rainbow trout in the Madison River, Montana, USA.
- R. C. Krueger, B. Kerans, E. R. Vincent, C. Rasmussen
- Environmental ScienceEcological Applications
- 1 April 2006
This study provides a model of how the disease ecology of complex aquatic parasites can be examined when the influential processes operate on different spatial scales and indicates areas of high whirling disease risk.
DIFFERENTIAL PROPAGATION OF THE METAZOAN PARASITE MYXOBOLUS CEREBRALIS BY LIMNODRILUS HOFFMEISTERI, ILYODRILUS TEMPLETONI, AND GENETICALLY DISTINCT STRAINS OF TUBIFEX TUBIFEX
- B. Kerans, C. Rasmussen, R. Stevens, A. E. Colwell, J. Winton
- Biology, Environmental ScienceThe Journal of parasitology
- 1 December 2004
Genetic analyses revealed relationships that were in agreement with the level of parasite production and ecological or genetic variation within oligochaete host populations may be responsible for substantial differences in whirling disease severity in different areas of North America.
A Risk Assessment Based Approach for the Management of Whirling Disease
While this approach was designed to address factors controlling the introduction and establishment of M. cerebralis and the development of whirling disease in salmonids, the concepts are highly relevant to the management of other infectious diseases of aquatic animals.
THE EFFECTS OF MYXOBOLUS CEREBRALIS MYXOSPORE DOSE ON TRIACTINOMYXON PRODUCTION AND BIOLOGY OF TUBIFEX TUBIFEX FROM TWO GEOGRAPHIC REGIONS
Differences in whirling disease severity observed in wild salmonid populations may partially be attributed to differences in T. tubifex populations, which differ in ability to support the replication of M. cerebralis, and infection has measurable consequences on fitness of the worm host.