Change of foraging and hiding behavior in the Pacific abalone Haliotis discus hannai in response to seawater warming

Title
Change of foraging and hiding behavior in the Pacific abalone Haliotis discus hannai in response to seawater warming
Author(s)
유채영; 이정아; 김태원
Publication Year
2015-10-05
Abstract
Abalones take refuge during the day under rocks or in crevices, from which they emerge to forage in the evening. In this study, we explored the effect of changing temperature on foraging and hiding behavior of the Pacific abalone Haliotis discus hannai. First, we tested whether their hiding behavior in response to light would be different depending on temperature (11℃, 14℃, and 17℃) when only the artificial shelter was provided. Hiding under the shelter at 17℃ was much faster than hiding at 11℃. Second, we tested whether their hiding and foraging behaviors change in response to increasing temperature when both food and the shelter were provided. At high water temperature (17℃), abalones emerged more quickly than those at low temperature (11℃), and the total number of feeding abalones was higher at high temperature than that at low temperature. However, the hiding speed in response to light in the morning was not significantly different between different temperatures. The results suggest that, although basic response to single stimulus (i.e. light or food) becomes faster at higher temperature, abalones may increase their boldness under higher temperature when they should decide whether to feed or hide.iscus hannai. First, we tested whether their hiding behavior in response to light would be different depending on temperature (11℃, 14℃, and 17℃) when only the artificial shelter was provided. Hiding under the shelter at 17℃ was much faster than hiding at 11℃. Second, we tested whether their hiding and foraging behaviors change in response to increasing temperature when both food and the shelter were provided. At high water temperature (17℃), abalones emerged more quickly than those at low temperature (11℃), and the total number of feeding abalones was higher at high temperature than that at low temperature. However, the hiding speed in response to light in the morning was not significantly different between different temperatures. The results suggest that, although basic response to single stimulus (i.e. light or food) becomes faster at higher temperature, abalones may increase their boldness under higher temperature when they should decide whether to feed or hide.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/25287
Bibliographic Citation
International Abalone Symposium, pp.107, 2015
Publisher
International
Type
Conference
Language
English
Publisher
International
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