Mark L Wildhaber

Fish population model R code

We developed an age-structured population matrix model to perform population viability analysis for Lower Missouri River (LMR) shovelnose sturgeon (Scaphirhynchus platorynchus). We investigated potential effects of the commercial fishing moratorium put in place to help protect the similar-appearing pallid sturgeon (S. albus). The model applies different components of total variance in life history parameters at different levels: sampling variance (parameter uncertainty) between model iterations; temporal variance (temporal environmental fluctuations) between time steps within iterations; and individual variance (individual differences) within each time-step. The model predicted annual rates of population increase...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service

Survival, behavior, reproduction, morphometric measurements, and tissue analyses of crayfish, mussels, and fish from acute toxicity tests with pyrethroid pesticides. Exposure and recovery water quality data are also included for quality assurance purposes.

Tags: Aquatic Biology, Missouri, USGS Science Data Catalog (SDC), acute toxicity, bioassays, All tags... biosecurity, biota, chemical control, crayfish, cypermethrin, fish, freshwater crayfish, freshwater mussels, hatcheries, invasive crayfish, invasive species, sublethal effects, survival, tolerance, toxicity, viability, Fewer tags

Crayfish morphometric measurements, burrow attributes and occupancy in response to physical burrow barriers

Data were collected in association with the application of two physical barrier treatments, bentonite clay (a sealing agent) and expanding foam (an insulation sealant), in natural pond-burrows to suppress or kill the invasive red swamp crayfish (Procambarus clarkii). Data include burrow diameter and depth, crayfish sex and size, and determination of the treatment reaching the burrow chamber.

Tags: Aquatic Biology, Auburn University, Columbia Environmental Research Center, USGS Science Data Catalog (SDC), biota, All tags... burrows, crayfish, freshwater crayfish, invasive crayfish, invasive species, physical control, red swamp crayfish, survival, tolerance, viability, Fewer tags

Hierarchical stochastic modelling of large river ecosystems and fish growth across spatio-temporal scales and climate models: the Missouri River endangered pallid sturgeon example

Abstract (from http://sp.lyellcollection.org/content/early/2015/10/09/SP408.11.abstract): We present a hierarchical series of spatially decreasing and temporally increasing models to evaluate the uncertainty in the atmosphere – ocean global climate model (AOGCM) and the regional climate model (RCM) relative to the uncertainty in the somatic growth of the endangered pallid sturgeon (Scaphirhynchus albus). For effects on fish populations of riverine ecosystems, climate output simulated by coarse-resolution AOGCMs and RCMs must be downscaled to basins to river hydrology to population response. One needs to transfer the information from these climate simulations down to the individual scale in a way that minimizes extrapolation...

Categories: Publication; Types: Citation; Tags: Fish, Missouri River, National CASC, Wildlife and Plants, fish, All tags... pallid sturgeon, Fewer tags

Acoustic Telemetry Evaluation of Invasive Red Swamp Crayfish (Procambarus clarkii) Behavior in Southern Michigan (Summer 2021)

This study deployed acoustic telemetry into a red swamp crayfish-infested water retention pond (1.0 ac) near Novi, Michigan to document the movements and behavior of telemetered red swamp crayfish (Procambarus clarkii). Telemetry was setup in the pond for approximately 3 months. Spreadsheets include telemetry data with position estimates for individual crayfish.

Categories: Data; Tags: Acoustic telemetry, Aquatic Biology, Aquatic biology, Invasive crayfish, Invasive species, All tags... Macroinvertebrates, Michigan, Procambarus clarkii, Red swamp crayfish, USGS Science Data Catalog (SDC), biota, environment, Fewer tags