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Analysis of trophic interactions, however, requires a significant investment of time and resources. Using a simple predator\u2013prey pairing of a semi\u2010sessile rotifer and motile algae, the Predator\u2013Prey Encounter Detection (PrED) model aims to streamline and semi\u2010automate video analysis of species interactions using computer vision and machine learning techniques. Based on Ultralytics YOLOv5 architecture with an implementation of SORT tracking, the PrED model can estimate algal density and generate a \u201cpotential encounter\u201d log with timestamps to allow researchers to skip through a video. After the model validation and testing steps, the PrED model achieved over 90% precision and recall scores. By reducing the time it takes to analyze a species interaction video, the PrED model will save researchers time and act as an efficient tool to study plankton dynamics.<\/jats:p>","DOI":"10.1002\/ece3.74286","type":"journal-article","created":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T01:10:46Z","timestamp":1788743446000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["The Predator\u2013Prey Encounter Detection (\n                    <scp>PrED<\/scp>\n                    ) Model: Detecting Interactions Between Rotifers and Algae Using Computer Vision and Machine Learning"],"prefix":"10.1002","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-5266-1853","authenticated-orcid":false,"given":"Braden Charles","family":"DeMattei","sequence":"first","affiliation":[{"name":"Department of Evolution, Ecology, and Organismal Biology The Ohio State University  Columbus Ohio USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephanie E.","family":"Hampton","sequence":"additional","affiliation":[{"name":"Tahoe Environmental Research Center University of California  Incline Village Nevada USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,6]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/brv.12715"},{"key":"e_1_2_10_3_1","doi-asserted-by":"crossref","unstructured":"Bewley A. 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