Modeling Polyp Activity of Paragorgia arborea Using Supervised Learning
| Autor: | Sascha Flögel, Wolf-Christian Dullo, Arne N. Johanson, Peter Linke, Wilhelm Hasselbring |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
FOS: Computer and information sciences
0106 biological sciences Computer Science - Machine Learning Coral Lag Temperature salinity diagrams Atmospheric sciences 010603 evolutionary biology 01 natural sciences Machine Learning (cs.LG) Water column Time series Quantitative Biology - Populations and Evolution Ecology Evolution Behavior and Systematics Ecology I.2.6 010604 marine biology & hydrobiology Applied Mathematics Ecological Modeling Populations and Evolution (q-bio.PE) Sampling (statistics) Computer Science Applications Current (stream) Computational Theory and Mathematics FOS: Biological sciences Modeling and Simulation Environmental science Paragorgia arborea |
| Popis: | While the distribution patterns of cold-water corals, such as Paragorgia arborea, have received increasing attention in recent studies, little is known about their in situ activity patterns. In this paper, we examine polyp activity in P. arborea using machine learning techniques to analyze high-resolution time series data and photographs obtained from an autonomous lander cluster deployed in the Stjernsund, Norway. An interactive illustration of the models derived in this paper is provided online as supplementary material. We find that the best predictor of the degree of extension of the coral polyps is current direction with a lag of three hours. Other variables that are not directly associated with water currents, such as temperature and salinity, offer much less information concerning polyp activity. Interestingly, the degree of polyp extension can be predicted more reliably by sampling the laminar flows in the water column above the measurement site than by sampling the more turbulent flows in the direct vicinity of the corals. Our results show that the activity patterns of the P. arborea polyps are governed by the strong tidal current regime of the Stjernsund. It appears that P. arborea does not react to shorter changes in the ambient current regime but instead adjusts its behavior in accordance with the large-scale pattern of the tidal cycle itself in order to optimize nutrient uptake. 25 pages |
| Databáze: | OpenAIRE |
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