碩士 / 國立臺灣海洋大學 / 環境生物與漁業科學學系 / 106 / It is important to understand the fish behavior by tracking path and distribution dynamics of swimming. In the past studies, the continuous captures from video images of fish’s movement were mainly to analyze the fish behavior, but it could not record the whole movement in continuous time series and had the time gap. In this study, we used the automated tracking software (EthoVision XT 13) to analysis the swimming behavior and social behavior of Acanthopagrus schlegelii, Trachinotus blochii and Acanthopagrus latus by tank experiment. The software will determine the X, Y coordinates of the targets to track speed, angle, full swimming trajectory, and the distribution of hot spots. The results of first experiment showed that the spatial distribution of the hot spots of the black porgy and the yellow fin seabream were located in the center of the tank in the control group (no reefs were placed), accounting for 11.14 to 13.66% of the distribution and cumulative duration. After the reefs being placed, the two fish species have a longer time stay around the reefs, and the distribution and cumulative duration increase to 12.31~37.8%. The black porgy prefer the pipe reef, and the yellow fin seabream prefer the block reef. The silver pampano avoids the reef, and the distance to the the reef and the distance between individuals are also shown as the farthest distance among the three types of fish. In addition, the average swimming speed and moving distance showed that the black porgy and the yellow fin seabream had a decreasing trend after the reef being placed, but there was no significant difference between the two parameter of silver pampano and the silver pampano showed the group behavior. The results of second experiment showed that there was no tendency to escape from the fish reefs in the black porgy and yellow fin seabream, and the silver pampano had no avoidance behavior after the reefs were placed. However, the swimming speed was higher than that of the first experiment by 10~20 cm/s. It was speculated that the chasing behavior might occur between the two species, which caused a change in speed.
| Identifer | oai:union.ndltd.org:TW/106NTOU5451014 |
| Date | January 2018 |
| Creators | Chang, Hsiang-Hao, 張香晧 |
| Contributors | Lan, Kuo-Wei, 藍國瑋 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 73 |
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