A5057010507- Fish Ecology and Management Studies
- Aquatic Invertebrate Ecology and Behavior
- Marine and fisheries research
- Freshwater macroinvertebrate diversity and ecology
- Archaeology and Natural History
- Aquaculture disease management and microbiota
- Fish Biology and Ecology Studies
- Aquaculture Nutrition and Growth
- Water Quality and Resources Studies
- Physiological and biochemical adaptations
- Environmental DNA in Biodiversity Studies
- Botany, Ecology, and Taxonomy Studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Wildlife Ecology and Conservation
- Microbial infections and disease research
- Marine and coastal ecosystems
- Reproductive biology and impacts on aquatic species
- Hydrology and Sediment Transport Processes
- American Environmental and Regional History
- Soil and Water Nutrient Dynamics
- Isotope Analysis in Ecology
Michigan State University
2019-2025
Michigan Department of Natural Resources
2019-2024
Michigan United
2022-2024
Central Michigan University
2019
Long-lived iteroparous organisms vary resource expenditures toward migration and reproduction in response to individual physical factors conspecific interactions, which can affect future reproductive timing interval. Reproductive actions lead trade-offs associated with allocations current vs. reproduction, including longer interval, require additional study. The objective of this study was evaluate associations between stream characteristics, behaviors, breeding demographics spawning...
ABSTRACT Migratory fishes are renowned for their ability to home natal streams spawning. Learned olfactory cues play a critical role in homing of Pacific salmon and other fishes, but the underlying chemical signature remains poorly understood after decades study. The molecules that convey stream‐specific odour must differ among sites remain constant over time. Among leading odorant candidates amino acids; however, little research has assessed spatial temporal variability acid profiles...
Abstract Many migratory fishes are thought to navigate natal streams using olfactory cues learned during early life stages. However, direct evidence for early-life imprinting is largely limited Pacific salmon, and other species suspected imprint show history traits reproductive strategies that raise uncertainty about the generality of salmonid-based conceptual model in fishes. Here, we studied lake sturgeon (Acipenser fulvescens), which have a cycle notably different from but nonetheless...
The lake sturgeon (Acipenser fulvescens; LST) is the only native species in Great Lakes (GL), but due to multiple factors, their current populations are estimated be <1% of historical abundances. Little known about infectious diseases affecting GL-LST hatchery and wild settings. Therefore, a two-year disease surveillance study was undertaken, resulting detection first vitro isolation herpesvirus from grossly apparent cutaneous lesions adult LST inhabiting two GL watersheds (Erie Huron)....
Characterizing inter- and intra-population levels of variability in age at sexual maturation for long-lived fishes provides insight into year-class strength recruitment dynamics, allowing more effective management practices. Here we analyzed the ontogenetic chronology pectoral fin ray annuli trace elemental concentration profiles as well changes growth lake sturgeon ( Acipenser fulvescens) to determine onset maturity (OSM). Elemental concentrations growth-zone width were used build a random...
Intra-annual reproductive investments may not be predictive of male success because the effects intra- and intersexual interactions on sperm depletion. For long-lived iteroparous fish species such as lake sturgeon (Acipenser fulvescens), effort affect lifetime success. Radio frequency identification antennas were placed at mouth Upper Black River, Michigan, downstream spawning locations to quantify migratory mating behaviors, including upstream migration time (UT), river residence (RT),...
Nutritional deficiency associated with reduced thiamine (vitamin B1) and natural reproduction of salmonid species in the Great Lake Region is well established. The negative relationship between egg lipid concentration to post-hatch larval growth survival teleost species, coupled limited research Acipenseriform conservation concern, including lake sturgeon, indicates that study concentrations sturgeon eggs warranted. Eggs were collected from females (N = 12) during early late portion spawning...
Previous molecular diet analysis identified lake sturgeon (Acipenser fulvescens, Rafinesque, 1817) DNA in the gastrointestinal tracts of stream-resident rainbow darters (Etheostoma caeruleum, Storer, 1845) during egg incubation, free embryo, and larval drift stages. The objectives this experimental study were to: (a) quantify levels predation by on at free-embryo stages; (b) evaluate whether varied as a function substrate size darter body size. We conducted trials 23-L polycarbonate tanks...
Abstract Bacterial kidney disease, caused by Renibacterium salmoninarum (RS), is a chronic and often fatal disease of salmonid species, can be particularly harmful to hatchery-reared Chinook Salmon Oncorhynchus tshawytscha. A considerable amount research has focused on the prevention vertical horizontal transmission; however, comparatively little investigated factors that increase prevalence RS infection in captive environments. We evaluated effects three common hatchery conditions...
Documentation of how interactions among members different stream communities [e.g., microbial and aquatic insect taxa exhibiting feeding strategies (FS)] collectively influence the growth, survival, recruitment fishes is limited. Considerable spatial overlap exists between early life stages fishes, including species conservation concern like lake sturgeon ( Acipenser fulvescens ), insects that abundantly occupy substrates on which spawning occurs. Habitat suggests across trophic levels may...