Kim T Scribner

Kim T Scribner
Michigan State University | MSU · Department of Fisheries and Wildlife

PhD University of Georgia

About

350
Publications
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Publications

Publications (350)
Article
Full-text available
Compromised nutritional conditions associated with dietary transitions and feeding cessation in the wild and during fish aquaculture operations are common and can impact growth and survival. These effects are especially prevalent during early ontogenetic stages. We quantified phenotypic and GI tract microbial community responses with an emphasis on...
Article
Full-text available
Predation during the downstream dispersal of larval stages represents a major recruitment bottleneck for fish populations. The co-occurrence of other organisms in river drift may reduce predation, but our knowledge of the factors influencing the composition and abundance of drift communities during post-hatch dispersal of larval fish remain limited...
Article
Full-text available
In traditional definitions of endurance rivalry, individuals compete to remain reproductively active longer than their rivals, but these time periods are typically brief, such as a single breeding season. Here, we explored endurance rivalry among adult males in a long-lived species that breeds year-round, the spotted hyena (Crocuta crocuta). We fou...
Preprint
Full-text available
As a strategy for minimizing microbial infections in fish hatcheries, we have investigated how putatively probiotic bacterial populations influence biofilm formation on the surface of eggs. All surfaces that are exposed to the aquatic milieu develop a microbial community through the selective assembly of microbial populations into a surface-adherin...
Article
Assessment of population sex ratios allows managers to forecast recruitment dynamics and loss of genetic diversity in natural populations and is important when the focal population is in low abundance and subject to demographic stochasticity. If levels of natural or artificial selection differ for males and females and levels of mortality likewise...
Article
Full-text available
Antibiotics, drugs, and chemicals (collectively referred to as chemotherapeutants) are widely embraced in fish aquaculture as important tools to control or prevent disease outbreaks. Potential negative effects include changes in microbial community composition and diversity during early life stages, which can reverse the beneficial roles of gut mic...
Article
Species reintroductions are successful when established populations maintain both demographic stability and genetic diversity. Such a result may be obtained by ensuring both structural habitat connectivity and genetic connectivity among reintroduced and remnant populations. Nevertheless, prezygotic barriers such as assortative mating can prevent th...
Article
Full-text available
The sea lamprey (Petromyzon marinus) is an invasive species in the Great Lakes and the focus of a large control and assessment program. Current assessment methods provide information on the census size of spawning adult sea lamprey in a small number of streams, but information characterizing reproductive success of spawning adults is rarely availab...
Article
For species of conservation concern, including lake sturgeon (Acipenser fulvescens), maintaining genetic diversity is critical for successful restoration. Great Lakes lake sturgeon restoration increasingly relies on hatchery supplementation and stream-side rearing facilities that utilize collections of eggs and offspring of early life stages. The n...
Chapter
Genetic and genomic resources are being developed at a rapid pace, offering powerful tools that can help protect and sustain ecologically important fish populations and the valued fisheries that they support. Herein, we discuss recent and ongoing genetic/genomic research in the Great Lakes and how high-throughput sequencing data has informed Walley...
Article
Benthic macroinvertebrates are important for stream ecosystem function and are considerable food resources for vertebrate consumers such as fish. The diversity, composition, and distribution of stream macroinvertebrate taxa are affected by factors that act at different spatial scales, from microhabitat to watershed-level effects. While comparative...
Article
Geometric morphometrics provides a powerful means of evaluating differences in phenotypic traits among specimens. However, inferences of trait variability can be confounded when measurements are based on preserved samples. We evaluated effects of ethanol preservation on morphology over a 22-week time period for a Laurentian Great Lakes invasive fis...
Article
Full-text available
Aim Our goal was to use eDNA metabarcoding to characterize fish community diversity, detect aquatic invasive species (AIS) and assess how measures of community (or AIS) diversity are influenced by lake physical and environmental covariates, measures of hydrological connectivity and human accessibility. Location Michigan, USA. Methods eDNA samples...
Article
Information regarding site occupancy of fish that migrate long distances during non-spawning periods together with estimates of recruitment trends for individual populations can be informative for management, especially when individuals from different spawning populations intermix and are sampled/harvested together. Tendencies for individuals from...
Article
The relationships between habitat amount and fragmentation level and functional connectivity and inbreeding remain unclear. Thus, we used genetic algorithms to optimize the transformation of habitat area and fragmentation variables into resistance surfaces to predict genetic structure and examined habitat area and fragmentation effects on inbreedin...
Article
Full-text available
Here we present an annotated, chromosome-anchored, genome assembly for Lake Trout (Salvelinus namaycush) – a highly diverse salmonid species of notable conservation concern and an excellent model for research on adaptation and speciation. We leveraged Pacific Biosciences long-read sequencing, paired-end Illumina sequencing, proximity ligation (Hi-C...
Article
Full-text available
Predator encounters during early life can elicit behavioral and physiological responses that have fitness consequences during subsequent prey life stages. In threatened lake sturgeon (Acipenser fulvescens) and other lithophilic-spawning fishes, newly hatched larvae (free embryos) are exposed to abundant predators including aquatic insect larvae tha...
Article
Estimates of the number of successfully breeding adults (NS) in a population can predict levels of recruitment. However, assessments of NS are often difficult to obtain because encounters with adults are limited due to life history characteristics, low abundance, or other constraints associated with access to critical habitats. Alternatively, effor...
Article
Rapid environmental change is reshaping ecosystems and driving species loss globally. Carnivore populations have declined and retracted rapidly and have been the target of numerous translocation projects. Success, however, is complicated when these efforts occur in novel ecosystems. Identifying refuges, locations that are resistant to environmental...
Article
Nutritional deficiency associated with reduced thiamine (vitamin B1) and reduced natural reproduction of salmonid species in the Great Lake Region is well established. The negative relationship between egg thiamine and lipid concentration to post-hatch larval growth and survival in teleost species, coupled with the limited research of egg thiamine...
Preprint
Here we present an annotated, chromosome-anchored, genome assembly for Lake Trout (Salvelinus namaycush) – a highly diverse salmonid species of notable conservation concern and an excellent model for research on adaptation and speciation. We leveraged Pacific Biosciences long-read sequencing, paired-end Illumina sequencing, proximity ligation (Hi-C...
Article
Demographic data including characterizations of population sex and age composition are of fundamental importance for effective management, especially for numerically depressed Great Lakes populations of imperiled species such as lake sturgeon (Acipenser fulvescens). The goal of this paper was to extend a recently reported Acipenserid-derived PCR-ba...
Article
Populations of stream organisms across trophic levels, including microbial taxa, are adapted to physical and biotic stream features, and are sentinels of geological and hydrological landscape processes and anthropogenic disturbance. Stream bacterial diversity and composition can have profound effects on resident and migratory species in Great Lakes...
Article
Full-text available
Landscape genetic analyses allow detection of fine‐scale spatial genetic structure (SGS) and quantification of effects of landscape features on gene flow and connectivity. Typically, analyses require generation of resistance surfaces. These surfaces characteristically take the form of a grid with cells that are coded to represent the degree to whic...
Article
Full-text available
Knowledge on factors influencing traits during critical early growth periods is essential for predicting population persistence. Genetic effects and microhabitat stream conditions at female selected ovi-position sites influence larval phenotypes. However, limited work has examined contributions of both factors across sequential ontogenetic stages f...
Article
Hatchery programs are critical for conservation and management of many imperiled fishes. Most traditional aquaculture programs negatively affect ecological performance, genetic, and phenotypic diversity of hatchery-origin fish compared with wild counterparts. Here, we synthesize outcomes of three conservation programs aimed at enhancing ‘wildness’....
Article
Physical and biotic factors that affect development and survival during the embryonic period of fish are major concerns in aquaculture, particularly when individuals are produced using natural surface water sources. We quantified the effects of bacterial community taxonomic composition and abundance, water filtration treatment, and incubation tempe...
Article
Renibacterium salmoninarum (RS), the causative agent of bacterial kidney disease, has been a serious threat to salmonid health in the Laurentian Great Lakes. Despite its wide spread presence in the Great Lakes basin, little is known about RS ecology and the potential role of non-salmonid species as one of the pathogen’s reservoirs. This information...
Article
Full-text available
Temperature differentially influences developmental trajectories of traits during early life stages that can affect survival and recruitment. Experiments were conducted to quantify temperature-induced developmental responses of White Sturgeon (Acipenser transmontanus) yolk-sac larvae (YSL) reared at temperatures encountered across the species’ rang...
Article
Intra-annual reproductive investments may not be predictive of male reproductive success because of the effects of intra- and inter-sexual interactions on sperm depletion. For long-lived iteroparous fish species such as lake sturgeon (Acipenser fulvescens), reproductive effort may affect life-time reproductive success. Radio frequency identificatio...
Article
Intra-annual reproductive investments may not be predictive of male reproductive success because of the effects of intra- and inter-sexual interactions on sperm depletion. For long-lived iteroparous fish species such as lake sturgeon (Acipenser fulvescens), reproductive effort may affect life-time reproductive success. Radio frequency identificatio...
Article
Surprising social complexity and variability have recently been documented in several mammalian species once believed to be strictly solitary, and variation in resource abundance may drive this variation in sociality. Wagner et al. (Wagner, A. P., S. Creel, L. G. Frank, and S. T. Kalinowski. 2007. Patterns of relatedness and parentage in an asocial...
Article
Bacterial kidney disease (BKD), caused by Renibacterium salmoninarum (RS) is a chronic, often fatal disease of salmonid species, and can be particularly harmful to hatchery reared Chinook salmon (Oncorhynchus tshawytscha). Considerable research has focused on prevention of vertical and horizontal transmission; however, comparatively little research...
Article
Full-text available
Understanding the genomic basis of adaptative intraspecific phenotypic variation is a central goal in conservation genetics and evolutionary biology. Lake trout ( Salvelinus namaycush ) are an excellent species for addressing the genetic basis for adaptive variation because they express a striking degree of ecophenotypic variation across their rang...
Article
Full-text available
Declines in abundance and genetic diversity in plant and animal populations are increasingly of conservation concern. Genetic rescue, or the supplementation of declining populations with individuals from genetically different sources, may aid in demographic and genetic recovery efforts, assuming introduced individuals successfully reproduce followi...
Article
Analytical methods that incorporate genetic data are increasingly used in monitoring and assessment programs for important rate functions of fish populations (e.g., recruitment). Because gear types vary in efficiencies and effective sampling areas, results from genetic‐based assessments likely differ depending on the sampling gear used to collect g...
Article
Full-text available
Since 2004, seven spawning reefs have been constructed in the St. Clair–Detroit River system to remediate lost spawning habitat and increase recruitment of Lake Sturgeon Acipenser fulvescens. Assessment of management actions by collecting and enumerating eggs and larvae provided evidence of spawning Lake Sturgeon and survival of eggs until larval d...
Article
We quantified the effects of environment (diet and water sources) and host early ontogenetic development on the diversity of and compositional changes in gut microbial communities based on massively parallel sequencing of the 16S rRNA genes from the GI tracts of larval lake sturgeon ( Acipenser fulvescens ). The gut microbial community diversity de...
Presentation
Full-text available
Variation in timing of lake sturgeon (Acipenser fulvescens) spawning migrations and duration of occupancy of spawning areas are often attributed to behavior plasticity in response to environmental cues (e.g., temperature, discharge, lunar cycle, day length) or biotic factors (e.g., inter- and intra- sex exposure). Using PIT antenna arrays, spawning...
Article
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 the egg incubation, free embryo, and larval drift stages. The objectives of this experimental study were to: (a) quantify levels of preda...
Article
Quantifying transgenerational effects of stress is important to predict outcomes of anthropogenic disturbances for wildlife species. Maternal stress can programme physiological and behavioural phenotypes in offspring, which may be maladaptive if maternal and offspring environments are mismatched. We investigated effects of a match and mismatch betw...
Article
Full-text available
Abstract Genomic tools are lacking for invasive and native populations of sea lamprey (Petromyzon marinus). Our objective was to discover single nucleotide polymorphism (SNP) loci to conduct pedigree analyses to quantify reproductive contributions of adult sea lampreys and dispersion of sibling larval sea lampreys of different ages in Great Lakes t...
Article
Early life stress can lead to long-term behavioural and physiological phenotypic alterations that impact fitness. Understanding effects of environmental stressors on wildlife is important to predict individual and population-level responses to stressors associated with climate change. Lake sturgeon, Acipenser fulvescens, are a regionally threatened...
Article
Identifying movement and habitat use patterns is essential for fish passage efforts and the conservation of threatened species. We used acoustic telemetry to track the movements of 44 juvenile lake sturgeon (Acipenser fulvescens) throughout Kleber Reservoir in northern Michigan. On average lake sturgeon moved 502 meters between telemetry positions,...
Article
Full-text available
Detecting species at low abundance, including aquatic invasive species (AIS), is critical for making informed management decisions. Environmental DNA (eDNA) methods have become a powerful tool for rare or cryptic species detection; however, many eDNA assays offer limited utility for community‐level analyses due to their use of species‐specific (pre...
Article
We evaluated the effects of incision placement (midline vs. lateral), closure method (absorbable monofilament suture vs. n‐butyl‐ester cyanoacrylate adhesive, Vetbond®, 3 M), and tag burden (PIT-tag only vs. PIT-tag and acoustic transmitter) on survival, post-operative complications (i.e., viscera expulsion, necrosis), incision dehiscence, incision...
Article
Full-text available
Lake Sturgeon (Acipenser fulvescens) hatcheries that produce juveniles to augment natural populations are of increasing importance to management and species recovery. Maintaining balanced sex ratios of juveniles that are released into the wild is important to future natural reproduction. Greater understanding of the chronology of gonadal developmen...
Article
The Lake Michigan brown trout (Salmo trutta) fishery is sustained by the stocking of five hatchery strains by four state natural resource agencies. In the absence of exhaustive marking programs, strain-specific measures of stocking success are lacking for brown trout in Lake Michigan. We used microsatellite-based genetic assignment testing and gene...
Preprint
Full-text available
A screening of environmental conditions that would elicit robust biofilm in a collection of Serratia marcescens isolated from soil revealed that exogenous milk protein increased biofilm productivity up to ten-fold. A select screening of fish pathogens, freshwater and human isolates identified several other species that responded similarly to exogen...
Article
Full-text available
The establishment and spread of aquatic invasive species is ecologically and economically harmful and a source of conservation concern internationally. Processes of species invasion have traditionally been inferred from observational data of species presence/absence and relative abundance. However, genetic‐based approaches can provide valuable sour...
Poster
Full-text available
Males exhibit variable pre-spawning behavior in response to environmental variables intra-sexual and inter-sexual interactions. Timing and duration of breeding area occupancy and access to mates may not alone be predictive of male reproductive success because of effects of intra- and inter-sexual interactions on sperm depletion and quality? For lon...
Article
Predator–prey relationships are important ecological interactions, affecting biotic community composition and energy flow through a system, and are of interest to ecologists and managers. Morphological diet analysis has been the primary method used to quantify the diets of predators, but emerging molecular techniques using genetic data can provide...
Article
This study quantified the effects of pond rearing environments on microbial community composition in larval channel catfish (Ictalurus punctatus) gastrointestinal (GI) tracts across early developmental stages. Larvae were reared under standard industry conditions and sampled at five developmental stages (Egg, Swim-up, Day of stocking, 24 h post-sto...
Article
Full-text available
Modeling spatially explicit data provides a powerful approach to identify the effects of exogenous features associated with biological processes, including recruitment of stream fishes. However, the complex spatial and temporal dynamics of the stream and the species’ reproductive and early life stage behaviors present challenges to drawing valid in...
Data
Data and results for sites 1, 2, and 4. (PDF)
Article
Bighead catfish (Clarias macrocephalus) is an important freshwater species for aquaculture and fisheries in Southeast Asia. The species has been domesticated for more than 30 generations in hatcheries, but wild population numbers have declined to “threatened” levels. In this study, genetic diversity was quantified in areas of intensive catfish cult...
Article
Abiotic conditions and demographic factors can influence the timing of spawning. Behavioral plasticity allows females to select spawning conditions that are conducive to offspring development; however, reproductive costs associated with delaying spawning are not well-understood. In the study, factors influencing timing of female spawning, residence...
Article
Full-text available
Recent assessments indicate the emergence of naturally produced lake trout (Salvelinus namaycush) recruitment throughout Lake Huron in the North American Laurentian Great Lakes (>50% of fish <7 yrs). Because naturally produced fish derived from different stocked hatchery strains are unmarked, managers cannot distinguish strains contributing to natu...
Article
Full-text available
Population levels of recruitment are often affected by high rates of mortality during early life stages. Lake sturgeon (Acipenser fulvescens), a regionally threatened species, experiences high rates of mortality during the larval stage, partially due to predation. The objective of this study was to quantify and compare relative rates of larval sturg...
Article
This study utilized molecular tools to quantify the prevalence of predation during the vulnerable drifting larval life‐history stage of lake sturgeon Acipenser fulvescens. How predators, the co‐distributed prey community and abiotic environmental conditions (e.g. stream substrata) affected predation levels was quantified. Nightly D‐frame drift net...
Article
Introduced species often colonize regions that have vastly different ecological and environmental conditions than those found in their native range. As such, species introductions can provide a deeper understanding into the process of adaptive evolution. In the 1890s, steelhead trout (Oncorhynchus mykiss) from California were introduced into Lake M...
Article
Full-text available
The idealized concept of a population is integral to ecology, evolutionary biology, and natural resource management. To make analyses tractable, most models adopt simplifying assumptions, which almost inevitably are violated by real species in nature. Here we focus on both demographic and genetic estimates of effective population size per generatio...