The giant freshwater prawn Macrobrachium rosenbergii alters background colour preference after metamorphosis from larvae to postlarvae: in association with nature of phototaxis
The giant freshwater prawn Macrobrachium rosenbergii larvae have apposition eyes and are positively phototactic, whereas the postlarvae (PL) have superposition eyes and are negatively phototactic. M. rosenbergii has colour vision as early as larval stage. We discovered that M. rosenbergii alters ba...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Willey
2020
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| Online Access: | https://eprints.ums.edu.my/id/eprint/27006/1/The%20giant%20freshwater%20prawn%20Macrobrachium%20rosenbergii%20alters%20background%20colour%20preference%20after%20metamorphosis%20from%20larvae%20to%20postlarvae.pdf https://eprints.ums.edu.my/id/eprint/27006/2/The%20giant%20freshwater%20prawn%20Macrobrachium%20rosenbergii%20alters%20background%20colour%20preference%20after%20metamorphosis%20from%20larvae%20to%20postlarvae%20full%20teks.pdf |
| _version_ | 1796910582261088256 |
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| author | Gunzo Kawamura Seok, Annita, Kian Yong Jian, Shen Wong Audrey Daning Tuzan Leong Seng Lim |
| author_facet | Gunzo Kawamura Seok, Annita, Kian Yong Jian, Shen Wong Audrey Daning Tuzan Leong Seng Lim |
| author_sort | Gunzo Kawamura |
| collection | UMS |
| description | The giant freshwater prawn Macrobrachium rosenbergii larvae have apposition eyes and are positively phototactic, whereas the postlarvae (PL) have superposition eyes
and are negatively phototactic. M. rosenbergii has colour vision as early as larval stage. We discovered that M. rosenbergii alters background colour preference after metamorphosis from larvae to PL in association with nature of phototaxis. The test circular glass aquaria covered with a pair of two-colour papers contained with a group of
100 larvae or 20 Pl, and the number of individuals in each colour background was recorded five times for each colour pair. The background colours tested were light blue, green, yellow, red, white and black. The numbers of larvae or PL in each colour background of different pairs were analysed by the Thurstone's law of comparative judgment. In the larvae, significant bias towards yellow was evident. In the PL, of the
four pairings of black with other colours, all biased to black. The mean z-scores were highest for yellow in the larvae, and for black in the PL. To determine the possible
background brightness preference of the larvae and PL, six different colour backgrounds were presented in pairs. The larvae significantly preferred light blue over dark blue, white over yellow and white over black. The PL exhibited reversed preference. The relationship between z-scores and light reflectance levels of five colour papers was significantly positive in the larvae and negative in the PL. The observed background colour preference was probably due to relative brightness rather than chromaticity difference. |
| first_indexed | 2024-03-06T03:06:38Z |
| format | Article |
| id | ums.eprints-27006 |
| institution | Universiti Malaysia Sabah |
| language | English English |
| last_indexed | 2024-03-06T03:06:38Z |
| publishDate | 2020 |
| publisher | Willey |
| record_format | dspace |
| spelling | ums.eprints-270062021-05-27T02:18:14Z https://eprints.ums.edu.my/id/eprint/27006/ The giant freshwater prawn Macrobrachium rosenbergii alters background colour preference after metamorphosis from larvae to postlarvae: in association with nature of phototaxis Gunzo Kawamura Seok, Annita, Kian Yong Jian, Shen Wong Audrey Daning Tuzan Leong Seng Lim SF Animal culture The giant freshwater prawn Macrobrachium rosenbergii larvae have apposition eyes and are positively phototactic, whereas the postlarvae (PL) have superposition eyes and are negatively phototactic. M. rosenbergii has colour vision as early as larval stage. We discovered that M. rosenbergii alters background colour preference after metamorphosis from larvae to PL in association with nature of phototaxis. The test circular glass aquaria covered with a pair of two-colour papers contained with a group of 100 larvae or 20 Pl, and the number of individuals in each colour background was recorded five times for each colour pair. The background colours tested were light blue, green, yellow, red, white and black. The numbers of larvae or PL in each colour background of different pairs were analysed by the Thurstone's law of comparative judgment. In the larvae, significant bias towards yellow was evident. In the PL, of the four pairings of black with other colours, all biased to black. The mean z-scores were highest for yellow in the larvae, and for black in the PL. To determine the possible background brightness preference of the larvae and PL, six different colour backgrounds were presented in pairs. The larvae significantly preferred light blue over dark blue, white over yellow and white over black. The PL exhibited reversed preference. The relationship between z-scores and light reflectance levels of five colour papers was significantly positive in the larvae and negative in the PL. The observed background colour preference was probably due to relative brightness rather than chromaticity difference. Willey 2020 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/27006/1/The%20giant%20freshwater%20prawn%20Macrobrachium%20rosenbergii%20alters%20background%20colour%20preference%20after%20metamorphosis%20from%20larvae%20to%20postlarvae.pdf text en https://eprints.ums.edu.my/id/eprint/27006/2/The%20giant%20freshwater%20prawn%20Macrobrachium%20rosenbergii%20alters%20background%20colour%20preference%20after%20metamorphosis%20from%20larvae%20to%20postlarvae%20full%20teks.pdf Gunzo Kawamura and Seok, Annita, Kian Yong and Jian, Shen Wong and Audrey Daning Tuzan and Leong Seng Lim (2020) The giant freshwater prawn Macrobrachium rosenbergii alters background colour preference after metamorphosis from larvae to postlarvae: in association with nature of phototaxis. Aquaculture Research, 51. pp. 3711-3717. (In Press) https://doi.org/10.1111/are.14720 |
| spellingShingle | SF Animal culture Gunzo Kawamura Seok, Annita, Kian Yong Jian, Shen Wong Audrey Daning Tuzan Leong Seng Lim The giant freshwater prawn Macrobrachium rosenbergii alters background colour preference after metamorphosis from larvae to postlarvae: in association with nature of phototaxis |
| title | The giant freshwater prawn Macrobrachium rosenbergii alters background colour preference after metamorphosis from larvae to postlarvae: in association with nature of phototaxis |
| title_full | The giant freshwater prawn Macrobrachium rosenbergii alters background colour preference after metamorphosis from larvae to postlarvae: in association with nature of phototaxis |
| title_fullStr | The giant freshwater prawn Macrobrachium rosenbergii alters background colour preference after metamorphosis from larvae to postlarvae: in association with nature of phototaxis |
| title_full_unstemmed | The giant freshwater prawn Macrobrachium rosenbergii alters background colour preference after metamorphosis from larvae to postlarvae: in association with nature of phototaxis |
| title_short | The giant freshwater prawn Macrobrachium rosenbergii alters background colour preference after metamorphosis from larvae to postlarvae: in association with nature of phototaxis |
| title_sort | giant freshwater prawn macrobrachium rosenbergii alters background colour preference after metamorphosis from larvae to postlarvae in association with nature of phototaxis |
| topic | SF Animal culture |
| url | https://eprints.ums.edu.my/id/eprint/27006/1/The%20giant%20freshwater%20prawn%20Macrobrachium%20rosenbergii%20alters%20background%20colour%20preference%20after%20metamorphosis%20from%20larvae%20to%20postlarvae.pdf https://eprints.ums.edu.my/id/eprint/27006/2/The%20giant%20freshwater%20prawn%20Macrobrachium%20rosenbergii%20alters%20background%20colour%20preference%20after%20metamorphosis%20from%20larvae%20to%20postlarvae%20full%20teks.pdf |
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