A5017406680- Fish Ecology and Management Studies
- Fish Biology and Ecology Studies
- Marine and fisheries research
- Isotope Analysis in Ecology
- Genetic diversity and population structure
- Aquatic Invertebrate Ecology and Behavior
- Identification and Quantification in Food
- Wildlife Ecology and Conservation
- Toxic Organic Pollutants Impact
- Genomics and Phylogenetic Studies
- Fish biology, ecology, and behavior
- Environmental Toxicology and Ecotoxicology
- Social Media in Health Education
- Evolution and Paleontology Studies
- Species Distribution and Climate Change
- Morphological variations and asymmetry
- Environmental DNA in Biodiversity Studies
- Ichthyology and Marine Biology
- Amphibian and Reptile Biology
- Misinformation and Its Impacts
- Chromosomal and Genetic Variations
- Ecology and biodiversity studies
- Animal Behavior and Reproduction
- scientometrics and bibliometrics research
- Paleontology and Evolutionary Biology
Minnesota Department of Natural Resources
2024-2025
University of Minnesota
2024-2025
University of Minnesota System
2024
Nicholls State University
2017-2023
Shedd Aquarium
2014-2021
University of Wisconsin–Madison
2017
Michigan State University
2017
United States Geological Survey
2016
University of Michigan
2009-2012
We performed two controlled experiments to determine the amount of mass-dependent and mass-independent fractionation (MDF MIF) methylmercury (MeHg) during trophic transfer into fish. In experiment 1, juvenile yellow perch (Perca flavescens) were raised in captivity on commercial food pellets then their diet was either maintained unamended (0.1 μg/g MeHg) or switched with 1.0 4.0 added MeHg, for a period 2 months. The difference δ(202)Hg (MDF) Δ(199)Hg (MIF) between fish tissues MeHg within...
Abstract While sometimes difficult to admit, perspectives of European and white males have overwhelmingly dominated fisheries science management in the USA. This dynamic is exemplified by bias against “rough fish”—a pejorative ascribing low-to-zero value for countless native fishes. One product this that biologists ironically worked conservation diverse fishes over a century, these problems persist today. Nearly all U.S. states retain bag limits other policies are regressive encourage...
Abstract The bowfin ( Amia calva ) is a ray-finned fish that possesses unique suite of ancestral and derived phenotypes, which are key to understanding vertebrate evolution. phylogenetic position as representative neopterygian fishes, its archetypical body plan unduplicated slowly evolving genome make central species for the genomic exploration fishes. Here we present chromosome-level assembly enables gene-order analyses, settling long-debated relationships. We examine chromatin...
Abstract Evolutionary stasis characterizes lineages that seldom speciate and show little phenotypic change over long stretches of geological time. Although appear to exhibit evolutionary are often called living fossils, no single mechanism is thought be responsible for their slow rates morphological evolution low species diversity. Some analyses molecular in a handful fossil have indicated these clades genomic change. Here, we investigate mechanisms using dataset 1,105 exons 481 vertebrate...
Multiple studies across a variety of scientific disciplines have shown that the number times paper is shared on Twitter (now called X) correlated with citations receives. However, these were not designed to answer whether tweeting about papers causes an increase in citations, or they simply highlighting some higher relevance, importance quality and are therefore both tweeted more cited more. The authors this study leading science communicators from several life disciplines, substantially...
ABSTRACT Objective Anthropogenic modifications, such as levee construction and other flood control structures, have decoupled Louisiana’s floodplains from the seasonal pulse, influencing aquatic food web dynamics. Many of fish species rely on timing, magnitude, duration Mississippi River pulse to trigger key aspects their life histories. At Richard K. Yancey Wildlife Management Area, 283 ha floodplain are undergoing weir culvert repair retain water depth improve quality for native Louisiana...
Abstract Empirically understanding spatial variation in secondary production rates is central to ecology. Yet for most taxa, such patterns are rarely examined, especially at different levels of ecological organization (e.g., species‐ vs. community‐level patterns). We compiled data on biomass, production, and P/B freshwater fish communities species across latitudes contrast observed the community level with those species. At level, two distinct scales (global continental‐North American),...
Modern zoos and aquariums aspire to contribute significantly biodiversity conservation research. For example, research is a key accreditation criterion of the Association Zoos Aquariums (AZA). However, no studies date have quantified this contribution. We assessed productivity 228 AZA members using scientific publications indexed in ISI Web Science (WoS) database between 1993 2013 (inclusive). published 5175 peer-reviewed manuscripts over period, with publication output increasing time. Most...
Abstract Growing appreciation of biodiversity and the role apex predators, along with increasing popularity multispecies trophy‐oriented angling, has elevated status gars—in particular, Alligator Gar Atractosteus spatula —among anglers biologists alike. As a result, considerable effort been spent in recent years to gain working knowledge biology ecology species order advance science‐based management. In January 2019, Technical Committee Southern Division American Fisheries Society hosted...
Ancient, species-poor lineages persistently occur across the Tree of life. These are likely to contain unrecognized species diversity masked by low rates morphological evolution that characterize living fossils. Halecomorphi is a lineage ray-finned fishes diverged from its closest relatives before 200 Ma and represented only one in eastern North America, bowfin, Amia calva Linnaeus. Here, we use double digest restriction-site-associated DNA sequencing morphology illuminate recent speciation...
First posted August 3, 2017 For additional information, contact: Director, Great Lakes Science Center U.S. Geological Survey 1451 Green Rd. Ann Arbor, MI 48105 fishery managers have the opportunity and expressed interest in reestablishing a native forage base consisting of various forms species within genus Coregonus. This report summarizes proceedings workshop focused on subset genus, term "coregonines" is used to refer several deepwater ciscoes (also known as "chubs") one more...
Abstract Aim Migratory freshwater fishes are those that must access discrete habitats to complete their life cycles. Freshwater fish migrations occur around the world and provide numerous ecosystem services for humans natural systems; however, many migratory species in decline globally. A limiting factor successfully conserve is histories of unknown or only partially described. To researchers with critical comprehensive information fishes, we developed North American Fish Database (NAFMFD)....
Abstract We evaluated the performance of Wisconsin bioenergetics model for lake trout Salvelinus namaycush that were fed ad libitum in laboratory tanks under regimes low activity and high activity. In addition, we compared two different algorithms: (1) balancing energy budget on day t based density (2) + 1. Results indicated significantly underestimated consumption both inactive active when algorithm 1 was used degree underestimation similar levels. contrast, substantially improved using 2,...
Abstract Peripheral populations occupy the edge of a species' range and may exhibit adaptations to potentially “harsher” marginal environments compared with core populations. The peripheral population Spotted Gar Lepisosteus oculatus in Great Lakes basin represents northern is completely disjunct from Mississippi River population. Age‐0 Gars experience growing season approximately half that but reach similar sizes by winter, suggesting potential for countergradient variation growth, i.e. an...
Abstract Ecomorphology is essential to understanding the evolution and biogeography of species. However, morphological studies that focus on nongame or ‘rough’ fish groups such as Gar (Lepisosteidae), outside a phylogenetic context, are comparatively rare. Herein, we investigate effects sex, size, location in river assess potential for sexual dimorphism, allometry, habitat, some combination drive observed morphologic variation. Our dataset includes 230 Longnose Gars ( Lepisosteus osseus )...
Abstract Recreational angling for gars (family Lepisosteidae) has become more popular in recent years; however, the fundamental understanding of their population dynamics needed effective management and conservation is lacking. Age data are essential describing dynamic rate functions, but few studies have addressed selection ideal calcified structures estimating age gars. We collected Spotted Gars Lepisosteus oculatus , Shortnose L. platostomus Longnose osseus from 12 Illinois water bodies...
Abstract Gars (family Lepisosteidae) play important roles as apex predators in freshwater ecosystems, helping to balance fish populations. Several gar species are exploited food and game fish, some classified vulnerable due habitat loss. New molecular techniques detect, monitor, identify environmental DNA (eDNA) from gars might help inform management conservation efforts for these interesting fish. The goal of this project was develop test PCR primers gars, using specimens all seven species,...
Abstract The bowfin fish ( Amia calva ) diverged before the genome duplication in teleost fishes, and its archetypical body plan slow rate of molecular evolution make it a key species for genomic exploration as basal representative neopterygian fishes. To investigate development ray-finned we generated chromosome-level assembly that enables gene-order analyses which settle long-debated, phylogenetic relationship with gars. We analyze underpinnings bowfin’s unique combination derived...
The spotted gar (Lepisosteus oculatus) shows a disjunct natural distribution, with core population extending from the central Mississippi River Basin to U.S. gulf coast and peripheral in southern Great Lakes Basin. Despite significant conservation concerns for this species watersheds where it occurs, few genetic examinations comparisons of these populations have been performed. We investigated inter- intrapopulational variation several mitochondrial markers (cytochrome oxidase subunit I,...
Abstract Production and outmigration of young‐of‐year (YOY) northern pike from natal sites in Lower Green Bay, WI, USA, were documented over three consecutive years (2013–2015). We tested the hypothesis that spawning success characteristics YOY would vary among natural anthropogenically modified habitats. Sixteen focal study locations surveyed, including a restored wetland, agricultural drainage ditches, flooded forested wetland several unimpounded tributaries. collected 1469 with most...