EVALUATION DEVICE AND EVALUATION METHOD

To evaluate the swimming state of an organism to be cultured in detail.SOLUTION: An evaluation device (5) includes: a central specification part (31) that specifies the center of the orbit of a cultured fish being an organism to be cultured from a moving image that captures at least a part of the range in which the cultured fish is swimming; a speed specification part (32) which specifies the swimming speed of the cultured fish from the moving image; a calculation part (33) that calculates a representative value of the swimming speed for each of a plurality of division areas obtained by dividing an evaluation target area where the swimming speed is within a prescribed range around the center according to a distance from the center; and an evaluation part (34) that evaluates the swimming state of the cultured fish on the basis of the representative value for each division area.SELECTED DRAWING: Figure 2 【課題】被養殖生物の遊泳状態を詳細に評価する。【解決手段】評価装置（５）は、被養殖生物である養殖魚が遊泳する周回軌道の中心を、養殖魚が遊泳している範囲の少なくとも一部を撮影した動画像から特定する中心特定部（３１）と、動画像から養殖魚の遊泳速度を特定する速度特定部（３２）と、中心の周りにおいて遊泳速度が所定範囲内である評価対象領域を中心からの距離に応じて区分した複数の区分領域ごとに、前記遊泳速度の代表値を算出する算出部（３３）と、区分領域ごとに、代表値に基づいて養殖魚の遊泳状態を評価する評価部（３４）と、を備えている。【選択図】図２