title: Visual spectral sensitivity of photopic juvenile Pacific bluefin tuna (Thunnus orientalis).
abstract: Although Pacific bluefin tuna is a species that relies on vision, its photopic visual function is not well known; we therefore recorded electroretinograms to investigate photopic spectral sensitivity in juveniles of this species (49-81 days post-hatch; standard length 74-223 mm). The peak spectral sensitivity wavelength was 505 nm. We estimated that two (λ(max) = 512-515 nm and 423-436 nm) or three (λ(max) = 512-515 nm, 423-436 nm, and 473 nm) types of cone visual pigments contribute to photopic vision; these spectral sensitivities are adapted to surface water habitats in clear ocean and coastal water.
authors.affiliation: Department of Fisheries, Faculty of Agriculture, Kinki University, Nara, Nara, 631-8505, Japan.
authors.forename: Taro
authors.initials: T
authors.lastname: Matsumoto
authors.affiliation: Ohshima Experiment Station, Fisheries Laboratory, Kinki University, 1790-4, Ohshima, Kushimoto, Wakayama, 649-3633, Japan.
authors.forename: Tokihiko
authors.initials: T
authors.lastname: Okada
authors.affiliation: Ohshima Experiment Station, Fisheries Laboratory, Kinki University, 1790-4, Ohshima, Kushimoto, Wakayama, 649-3633, Japan.
authors.forename: Yoshifumi
authors.initials: Y
authors.lastname: Sawada
authors.affiliation: Department of Fisheries, Faculty of Agriculture, Kinki University, Nara, Nara, 631-8505, Japan. isibasi@nara.kindai.ac.jp.
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Ishibashi
mesh_terms: D000818:Animals; D004596:Electroretinography; D014413:Tuna / Q000502:physiology*; D014785:Vision, Ocular / Q000502:physiology*
references.citation: Biol Bull. 2009 Oct;217(2):142-50
references.pmid: 19875819
references.citation: Fish Physiol Biochem. 2010 Mar;36(1):63-70
references.pmid: 19093222
references.citation: J Exp Biol. 2010 May;213(Pt 10):1751-61
references.pmid: 20435826
references.citation: Vision Res. 1991;31(3):361-71
references.pmid: 1843748
references.citation: Vis Neurosci. 2000 Jul-Aug;17(4):509-28
references.pmid: 11016572
references.citation: J Neurophysiol. 1970 May;33(3):323-41
references.pmid: 5439340
references.citation: J Exp Biol. 2008 Nov;211(Pt 22):3601-12
references.pmid: 18978225
references.citation: Vis Neurosci. 2007 May-Jun;24(3):389-98
references.pmid: 17822578
references.citation: Fish Physiol Biochem. 2010 Sep;36(3):391-402
references.pmid: 19288257
references.citation: Nature. 1969 Jul 12;223(5202):201-4
references.pmid: 4307228
references.citation: Vision Res. 1993 May;33(8):1011-7
references.pmid: 8506642
references.citation: Vision Res. 2006 Mar;46(5):658-64
references.pmid: 16039691
references.citation: Vision Res. 1968 Aug;8(8):997-1011
references.pmid: 5683090
references.citation: Psychon Bull Rev. 2004 Feb;11(1):192-6
references.pmid: 15117008
references.citation: Behav Brain Res. 2000 Nov 15;116(1):81-7
references.pmid: 11090887