Tubular Eyes of Deep-Sea Fishes: A Comparative Study of Retinal Topography (Part 2 of 2)

1997 ◽  
Vol 50 (6) ◽  
pp. 347-357 ◽  
Author(s):  
S.P. Collin ◽  
R.V. Hoskins ◽  
J.C. Partridge
Keyword(s):  
Comparative Study ◽  
Deep Sea ◽  
Retinal Topography

Tubular Eyes of Deep-Sea Fishes: A Comparative Study of Retinal Topography (Part 1 of 2)

1997 ◽  
Vol 50 (6) ◽  
pp. 335-346 ◽  
Author(s):  
S.P. Collin ◽  
R.V. Hoskins ◽  
J.C. Partridge
Keyword(s):  
Comparative Study ◽  
Deep Sea ◽  
Retinal Topography

scholarly journals The visual ecology of Holocentridae, a nocturnal coral reef fish family with a deep-sea-like multibank retina

2020 ◽  
pp. jeb.233098
Author(s):  
Fanny de Busserolles ◽  
Fabio Cortesi ◽  
Lily Fogg ◽  
Sara M. Stieb ◽  
Martin Luehrmann ◽  
...  
Keyword(s):  
Visual System ◽  
Reef Fish ◽  
Deep Sea ◽  
Colour Vision ◽  
Ganglion Cells ◽  
Light Sensitivity ◽  
Fish Family ◽  
Visual Systems ◽  
Retinal Topography ◽  
Dim Light

The visual systems of teleost fishes usually match their habitats and lifestyles. Since coral reefs are bright and colourful environments, the visual systems of their diurnal inhabitants have been more extensively studied than those of nocturnal species. In order to fill this knowledge gap, we conducted a detailed investigation of the visual system of the nocturnal reef fish family Holocentridae. Results showed that the visual system of holocentrids is well adapted to their nocturnal lifestyle with a rod-dominated retina. Surprisingly, rods in all species were arranged into 6-17 well-defined banks, a feature most commonly found in deep-sea fishes, that may increase the light sensitivity of the eye and/or allow colour discrimination in dim-light. Holocentrids also have the potential for dichromatic colour vision during the day with the presence of at least two spectrally different cone types: single cones expressing the blue-sensitive SWS2A gene, and double cones expressing one or two green-sensitive RH2 genes. Some differences were observed between the two subfamilies, with Holocentrinae (squirrelfish) having a slightly more developed photopic visual system than Myripristinae (soldierfish). Moreover, retinal topography of both ganglion cells and cone photoreceptors showed specific patterns for each cell type, likely highlighting different visual demands at different times of the day, such as feeding. Overall, their well-developed scotopic visual systems and the ease of catching and maintaining holocentrids in aquaria, make them ideal models to investigate teleost dim-light vision and more particularly shed light on the function of the multibank retina and its potential for dim-light colour vision.

scholarly journals Comparative study on stabilization mechanism of monomeric cytochrome c5 from deep-sea piezophilic Shewanella violacea

2016 ◽  
Vol 80 (12) ◽  
pp. 2365-2370 ◽  
Author(s):  
Misa Masanari ◽  
Sotaro Fujii ◽  
Kazuki Kawahara ◽  
Hiroya Oki ◽  
Hirofumi Tsujino ◽  
...  
Keyword(s):  
Comparative Study ◽  
Deep Sea ◽  
Stabilization Mechanism ◽  
Shewanella Violacea

Deep-sea meiofauna off the Pacific coast of Tohoku and other trench slopes around Japan: a comparative study before and after the 2011 off the Pacific coast of Tohoku Earthquake

2015 ◽  
Vol 72 (1) ◽  
pp. 129-139 ◽  
Author(s):  
Tomo Kitahashi ◽  
Himiko Watanabe ◽  
Ken Ikehara ◽  
Robert G. Jenkins ◽  
Shigeaki Kojima ◽  
...  
Keyword(s):  
Comparative Study ◽  
Deep Sea ◽  
Pacific Coast ◽  
Tohoku Earthquake ◽  
The Pacific ◽  
Before And After
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