Impacts on Atlantic killifish from neurotoxicants: Genes, behavior, and population relevant outcomes

We studied the effects of embyonic exposure of methylmercury and PCB126 on larval Atlantic killifish Fundulus heteroclitus behavior. Three types of behavior tests were conducted, a feeding assay, locomotion assay, and a visual motor response assay (VMR).  For each test, we conducted both controls and multiple sublethal levels of each chemical., The data were collected as described in the manuscript.  The data presented have been QA/QC'd, all jitters were corrected and the data were used in the study statistical analyses. Each data set contains the treatment and fish identification information., , # Impacts on Atlantic killifish from neurotoxicants: Genes, behavior, and population relevant outcomes: Fundulus heteroclitus behavior data

[https://doi.org/10.5061/dryad.12jm63z6w](https://doi.org/10.5061/dryad.12jm63z6w)

## Description of the data and file structure

We used laboratory behavior assays from two populations of Atlantic killifish *Fundulus heteroclitus* (one reference site (Scorton Creek, SCOKF) and one PCB-contaminated site (New Bedford Harbor, NBHKF)) to determine impacts from embryonic exposures to environmentally relevant concentrations of neurotoxicants.  The three types of behavior assays were a feeding assay with brine shrimp, a swimming locomotion assay, and a visual motor response assay that used light as a visual startle. Methylmercury exposed SCOKF exhibited changes in feeding and swimming behaviors. PCB126 exposed SCOKF had lower physical activity levels. The NBHKF, known to be tolerant to PCBs, still had altered swimming behaviors.

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