シナヌマエビにおける環境色に対応した体色変化の検証

Yuki Ishiba; Ayanosuke Takenaka; Reo Sato; Shohta Nakayama; Yusuke Fuke

doi:10.51094/jxiv.1804

##article.authors##

Yuki Ishiba Nishiyamato Gakuen High School
Ayanosuke Takenaka Nishiyamato Gakuen High School
Reo Sato Nishiyamato Gakuen High School
Shohta Nakayama Nishiyamato Gakuen High School
Yusuke Fuke Division of Applied Biological Science, Faculty of Agriculture, Setsunan University

DOI:

https://doi.org/10.51094/jxiv.1804

Keywords:

color substrate, background matching, DNA barcoding, RGB luminance values

Abstract

Background matching is a cryptic strategy where animal coloration matches the environment to evade, and body color change serves as the dynamic means to achieve this. While crustacean color change is known, its adaptive significance is understudied. This research tested if color change in the freshwater shrimp Neocaridina davidi has a function of matching the color of their surrounding environment. Neocaridina davidi were held in red, green, blue, and white environments for seven days. Evaluating body color changes via RGB luminance showed a trend where the color component matching the environment had the smallest decrease in luminance. This result suggests N. davidi can adjust its hue to match background colors, supporting the role of color change as cryptic camouflage. This study offers preliminary insights into the adaptive basis of color change in Neocaridina species.

Conflicts of Interest Disclosure

The authors declare that no competing interests exist

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Examining the Adaptive significance of colour change in the freshwater shrimp Neocaridina davidi

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