Visual pigments and spectral sensitivity of juvenile sutchi catfish (Pangasianodon hypophthalmus Sauvage 1878)

Knowledge on the visual spectral sensitivity of a given fish is important for determi‐ nation of optimal light conditions for improvement of fish rearing in aquaculture. Sutchi catfish (Pangasianodon hypophthalmus Sauvage 1878) is an important freshwa‐ ter fish species in Southeast Asia. The pres...

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Main Authors:	Tan, Nai-Han, Mukai, Yukinori, Okawa, Ryo, Anraku, Kazuhiko
Format:	Article
Language:	English English English
Published:	Wiley 2018
Subjects:	SH Aquaculture. Fisheries. Angling SH151 Aquaculture - Fish Culture
Online Access:	http://irep.iium.edu.my/67611/ http://irep.iium.edu.my/67611/ http://irep.iium.edu.my/67611/ http://irep.iium.edu.my/67611/7/67611%20Visual%20pigments%20and%20spectral%20sensitivity.pdf http://irep.iium.edu.my/67611/8/67611%20Visual%20pigments%20and%20spectral%20sensitivity%20SCOPUS.pdf http://irep.iium.edu.my/67611/19/67611%20Visual%20pigments%20and%20spectral%20sensitivity%20of%20juvenile%20sutchi%20catfish%20WOS.pdf

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recordtype	eprints
spelling	iium-676112019-01-27T08:24:18Z http://irep.iium.edu.my/67611/ Visual pigments and spectral sensitivity of juvenile sutchi catfish (Pangasianodon hypophthalmus Sauvage 1878) Tan, Nai-Han Mukai, Yukinori Okawa, Ryo Anraku, Kazuhiko SH Aquaculture. Fisheries. Angling SH151 Aquaculture - Fish Culture Knowledge on the visual spectral sensitivity of a given fish is important for determi‐ nation of optimal light conditions for improvement of fish rearing in aquaculture. Sutchi catfish (Pangasianodon hypophthalmus Sauvage 1878) is an important freshwa‐ ter fish species in Southeast Asia. The present study aimed to understand the visual spectral sensitivity of juvenile sutchi catfish through spectrophotometric measure‐ ment of the spectral absorbance of wholemounts of retinae. The spectral absorbance curves obtained from the spectrophotometric measurement indicated a parabolic shape. The curves for retinae photo‐bleached with initial flash of blue, green and yel‐ low lights, respectively had a peak at approximately 560 nm, which were the same as the curve for retinae photo‐bleached with broad wavelength light. On the other hand, the curve for retinae photo‐bleached with initial flash of red light had a peak shifted prominently toward shorter light wavelength at approximately 540 nm. This prominent shift of peak implied that the retinae of juvenile sutchi catfish absorb light wavelength of red. Therefore, the present results clearly suggested that juvenile sutchi catfish utilises longer light wavelengths. Wiley 2018-12 Article PeerReviewed application/pdf en http://irep.iium.edu.my/67611/7/67611%20Visual%20pigments%20and%20spectral%20sensitivity.pdf application/pdf en http://irep.iium.edu.my/67611/8/67611%20Visual%20pigments%20and%20spectral%20sensitivity%20SCOPUS.pdf application/pdf en http://irep.iium.edu.my/67611/19/67611%20Visual%20pigments%20and%20spectral%20sensitivity%20of%20juvenile%20sutchi%20catfish%20WOS.pdf Tan, Nai-Han and Mukai, Yukinori and Okawa, Ryo and Anraku, Kazuhiko (2018) Visual pigments and spectral sensitivity of juvenile sutchi catfish (Pangasianodon hypophthalmus Sauvage 1878). Journal of Applied Ichthyology, 34 (6). pp. 1314-1319. E-ISSN 1439-0426 https://onlinelibrary.wiley.com/doi/10.1111/jai.13792 10.1111/jai.13792
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	SH Aquaculture. Fisheries. Angling SH151 Aquaculture - Fish Culture
spellingShingle	SH Aquaculture. Fisheries. Angling SH151 Aquaculture - Fish Culture Tan, Nai-Han Mukai, Yukinori Okawa, Ryo Anraku, Kazuhiko Visual pigments and spectral sensitivity of juvenile sutchi catfish (Pangasianodon hypophthalmus Sauvage 1878)
description	Knowledge on the visual spectral sensitivity of a given fish is important for determi‐ nation of optimal light conditions for improvement of fish rearing in aquaculture. Sutchi catfish (Pangasianodon hypophthalmus Sauvage 1878) is an important freshwa‐ ter fish species in Southeast Asia. The present study aimed to understand the visual spectral sensitivity of juvenile sutchi catfish through spectrophotometric measure‐ ment of the spectral absorbance of wholemounts of retinae. The spectral absorbance curves obtained from the spectrophotometric measurement indicated a parabolic shape. The curves for retinae photo‐bleached with initial flash of blue, green and yel‐ low lights, respectively had a peak at approximately 560 nm, which were the same as the curve for retinae photo‐bleached with broad wavelength light. On the other hand, the curve for retinae photo‐bleached with initial flash of red light had a peak shifted prominently toward shorter light wavelength at approximately 540 nm. This prominent shift of peak implied that the retinae of juvenile sutchi catfish absorb light wavelength of red. Therefore, the present results clearly suggested that juvenile sutchi catfish utilises longer light wavelengths.
format	Article
author	Tan, Nai-Han Mukai, Yukinori Okawa, Ryo Anraku, Kazuhiko
author_facet	Tan, Nai-Han Mukai, Yukinori Okawa, Ryo Anraku, Kazuhiko
author_sort	Tan, Nai-Han
title	Visual pigments and spectral sensitivity of juvenile sutchi catfish (Pangasianodon hypophthalmus Sauvage 1878)
title_short	Visual pigments and spectral sensitivity of juvenile sutchi catfish (Pangasianodon hypophthalmus Sauvage 1878)
title_full	Visual pigments and spectral sensitivity of juvenile sutchi catfish (Pangasianodon hypophthalmus Sauvage 1878)
title_fullStr	Visual pigments and spectral sensitivity of juvenile sutchi catfish (Pangasianodon hypophthalmus Sauvage 1878)
title_full_unstemmed	Visual pigments and spectral sensitivity of juvenile sutchi catfish (Pangasianodon hypophthalmus Sauvage 1878)
title_sort	visual pigments and spectral sensitivity of juvenile sutchi catfish (pangasianodon hypophthalmus sauvage 1878)
publisher	Wiley
publishDate	2018
url	http://irep.iium.edu.my/67611/ http://irep.iium.edu.my/67611/ http://irep.iium.edu.my/67611/ http://irep.iium.edu.my/67611/7/67611%20Visual%20pigments%20and%20spectral%20sensitivity.pdf http://irep.iium.edu.my/67611/8/67611%20Visual%20pigments%20and%20spectral%20sensitivity%20SCOPUS.pdf http://irep.iium.edu.my/67611/19/67611%20Visual%20pigments%20and%20spectral%20sensitivity%20of%20juvenile%20sutchi%20catfish%20WOS.pdf
first_indexed	2023-09-18T21:35:58Z
last_indexed	2023-09-18T21:35:58Z
_version_	1777412822134685696

Visual pigments and spectral sensitivity of juvenile sutchi catfish (Pangasianodon hypophthalmus Sauvage 1878)

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