Retinal Topography in Reef Teleosts. II. Some Species with Prominent Horizontal Streaks and High-Density Areae

Shaun Patrick Collin; J. D. Pettigrew

doi:10.1159/000116595

Retinal Topography in Reef Teleosts. II. Some Species with Prominent Horizontal Streaks and High-Density Areae

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Abstract

The retinal ganglion cell layer of five species of reef teleosts was studied from Nissl-stained whole-mounts and the distribution of neural elements determined quantitatively. Iso-density contour maps of neurons in the ganglion cell layer revealed a temporal area centralis (ranging from 3.5 to 8.3 x 104 cells/mm2) which often extended into a horizontal streak (ranging from 1.4 to 5.0 x 104 cells/mm2) across the retinal meridian. Species possessing a marked horizontal streak were found to inhabit open water and perceive their environment with an uninterrupted view of sand-water horizon. The behavioural significance of these horizontal areas of acute vision is also discussed.

Original language	English
Pages (from-to)	283
Number of pages	295
Journal	Brain, Behaviour and Evolution
Volume	31
DOIs	https://doi.org/10.1159/000116595
Publication status	Published - 6 Feb 1988

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abstract = "The retinal ganglion cell layer of five species of reef teleosts was studied from Nissl-stained whole-mounts and the distribution of neural elements determined quantitatively. Iso-density contour maps of neurons in the ganglion cell layer revealed a temporal area centralis (ranging from 3.5 to 8.3 x 104 cells/mm2) which often extended into a horizontal streak (ranging from 1.4 to 5.0 x 104 cells/mm2) across the retinal meridian. Species possessing a marked horizontal streak were found to inhabit open water and perceive their environment with an uninterrupted view of sand-water horizon. The behavioural significance of these horizontal areas of acute vision is also discussed.",

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N2 - The retinal ganglion cell layer of five species of reef teleosts was studied from Nissl-stained whole-mounts and the distribution of neural elements determined quantitatively. Iso-density contour maps of neurons in the ganglion cell layer revealed a temporal area centralis (ranging from 3.5 to 8.3 x 104 cells/mm2) which often extended into a horizontal streak (ranging from 1.4 to 5.0 x 104 cells/mm2) across the retinal meridian. Species possessing a marked horizontal streak were found to inhabit open water and perceive their environment with an uninterrupted view of sand-water horizon. The behavioural significance of these horizontal areas of acute vision is also discussed.

AB - The retinal ganglion cell layer of five species of reef teleosts was studied from Nissl-stained whole-mounts and the distribution of neural elements determined quantitatively. Iso-density contour maps of neurons in the ganglion cell layer revealed a temporal area centralis (ranging from 3.5 to 8.3 x 104 cells/mm2) which often extended into a horizontal streak (ranging from 1.4 to 5.0 x 104 cells/mm2) across the retinal meridian. Species possessing a marked horizontal streak were found to inhabit open water and perceive their environment with an uninterrupted view of sand-water horizon. The behavioural significance of these horizontal areas of acute vision is also discussed.

U2 - 10.1159/000116595

DO - 10.1159/000116595

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JO - Brain Behavior and Evolution

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