Effects of Light Intensity and Wavelength on the Phototaxis of the Crassostrea gigas (♂) and Crassostrea sikamea (♀) Hybrid Larvae
Light sensitivity is important for marine benthic invertebrates, and it plays a vital role in the oysters settling. Generally, the emerging of eyespot is a signal of oyster larvae settling, while like most of the other coastal species, the oysters are threatened by artificial light pollution. Crasso...
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ftdoajarticles:oai:doaj.org/article:cc5acfd1bcee42dba1adc2c0f4a0a63b 2023-05-15T15:58:10+02:00 Effects of Light Intensity and Wavelength on the Phototaxis of the Crassostrea gigas (♂) and Crassostrea sikamea (♀) Hybrid Larvae Xuekai Zhang Chao Fan Xingzhi Zhang Qiongzhen Li Yangchun Li Zhaoping Wang 2021-07-01T00:00:00Z https://doi.org/10.3389/fmars.2021.698874 https://doaj.org/article/cc5acfd1bcee42dba1adc2c0f4a0a63b EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2021.698874/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2021.698874 https://doaj.org/article/cc5acfd1bcee42dba1adc2c0f4a0a63b Frontiers in Marine Science, Vol 8 (2021) phototaxis light intensity and wavelength eyespot larvae RGB color model hybrid oyster Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2021 ftdoajarticles https://doi.org/10.3389/fmars.2021.698874 2022-12-31T05:52:11Z Light sensitivity is important for marine benthic invertebrates, and it plays a vital role in the oysters settling. Generally, the emerging of eyespot is a signal of oyster larvae settling, while like most of the other coastal species, the oysters are threatened by artificial light pollution. Crassostrea gigas and Crassostrea sikamea are two oyster species naturally distributed in China, and their hybrids are potential material for oyster cross-breeding. Therefore, we investigated the phototaxis of hybrid eyespot larvae and eyeless larvae under different light intensities and wavelengths to uncover how light affects their behaviors. The results indicated that hybrid oyster larvae had positive phototaxis to specific light intensity and wavelength. We further concluded that 5 lx was the positive phototaxis light intensity for the eyeless hybrid larvae, and that the acceptable light intensity range of the eyespot hybrid larvae expanded to 5–10 lx, but no higher than 15 lx; besides, the hybrid larvae behaved negatively to the light over 25 lx. The present study also suggested the positive effects of green light on larvae gathering and the induction of red light on eyespot larvae settling. In conclusion, our study may contribute to the understanding of phototaxis of hybrid oyster larvae, as well as the further perspective of light pollution on benthic communities and coastal system restoration. Article in Journal/Newspaper Crassostrea gigas Directory of Open Access Journals: DOAJ Articles Frontiers in Marine Science 8 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
phototaxis light intensity and wavelength eyespot larvae RGB color model hybrid oyster Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
phototaxis light intensity and wavelength eyespot larvae RGB color model hybrid oyster Science Q General. Including nature conservation geographical distribution QH1-199.5 Xuekai Zhang Chao Fan Xingzhi Zhang Qiongzhen Li Yangchun Li Zhaoping Wang Effects of Light Intensity and Wavelength on the Phototaxis of the Crassostrea gigas (♂) and Crassostrea sikamea (♀) Hybrid Larvae |
topic_facet |
phototaxis light intensity and wavelength eyespot larvae RGB color model hybrid oyster Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
Light sensitivity is important for marine benthic invertebrates, and it plays a vital role in the oysters settling. Generally, the emerging of eyespot is a signal of oyster larvae settling, while like most of the other coastal species, the oysters are threatened by artificial light pollution. Crassostrea gigas and Crassostrea sikamea are two oyster species naturally distributed in China, and their hybrids are potential material for oyster cross-breeding. Therefore, we investigated the phototaxis of hybrid eyespot larvae and eyeless larvae under different light intensities and wavelengths to uncover how light affects their behaviors. The results indicated that hybrid oyster larvae had positive phototaxis to specific light intensity and wavelength. We further concluded that 5 lx was the positive phototaxis light intensity for the eyeless hybrid larvae, and that the acceptable light intensity range of the eyespot hybrid larvae expanded to 5–10 lx, but no higher than 15 lx; besides, the hybrid larvae behaved negatively to the light over 25 lx. The present study also suggested the positive effects of green light on larvae gathering and the induction of red light on eyespot larvae settling. In conclusion, our study may contribute to the understanding of phototaxis of hybrid oyster larvae, as well as the further perspective of light pollution on benthic communities and coastal system restoration. |
format |
Article in Journal/Newspaper |
author |
Xuekai Zhang Chao Fan Xingzhi Zhang Qiongzhen Li Yangchun Li Zhaoping Wang |
author_facet |
Xuekai Zhang Chao Fan Xingzhi Zhang Qiongzhen Li Yangchun Li Zhaoping Wang |
author_sort |
Xuekai Zhang |
title |
Effects of Light Intensity and Wavelength on the Phototaxis of the Crassostrea gigas (♂) and Crassostrea sikamea (♀) Hybrid Larvae |
title_short |
Effects of Light Intensity and Wavelength on the Phototaxis of the Crassostrea gigas (♂) and Crassostrea sikamea (♀) Hybrid Larvae |
title_full |
Effects of Light Intensity and Wavelength on the Phototaxis of the Crassostrea gigas (♂) and Crassostrea sikamea (♀) Hybrid Larvae |
title_fullStr |
Effects of Light Intensity and Wavelength on the Phototaxis of the Crassostrea gigas (♂) and Crassostrea sikamea (♀) Hybrid Larvae |
title_full_unstemmed |
Effects of Light Intensity and Wavelength on the Phototaxis of the Crassostrea gigas (♂) and Crassostrea sikamea (♀) Hybrid Larvae |
title_sort |
effects of light intensity and wavelength on the phototaxis of the crassostrea gigas (♂) and crassostrea sikamea (♀) hybrid larvae |
publisher |
Frontiers Media S.A. |
publishDate |
2021 |
url |
https://doi.org/10.3389/fmars.2021.698874 https://doaj.org/article/cc5acfd1bcee42dba1adc2c0f4a0a63b |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Frontiers in Marine Science, Vol 8 (2021) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2021.698874/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2021.698874 https://doaj.org/article/cc5acfd1bcee42dba1adc2c0f4a0a63b |
op_doi |
https://doi.org/10.3389/fmars.2021.698874 |
container_title |
Frontiers in Marine Science |
container_volume |
8 |
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1766393902047166464 |