Eyes and extraocular photoreceptors in midwater cephalopods and fishes: Their roles in detecting downwelling light for counterillumination | Zendy

Richard E. Young | Zendy; Clyde F. E. Roper | Zendy; John F. Walters | Zendy

Open Access

Eyes and extraocular photoreceptors in midwater cephalopods and fishes: Their roles in detecting downwelling light for counterillumination

Author(s) -

Richard E. Young,

Clyde F. E. Roper,

John F. Walters

Publication year - 1979

Publication title -

marine biology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.93

H-Index - 119

eISSN - 1432-1793

pISSN - 0025-3162

DOI - 10.1007/bf00389215

Subject(s) - bioluminescence , biology , squid , extraocular muscles , anatomy , cephalopod , fishery

The means of detecting downwelling light for counterillumination in several midwater animals has been examined. Eyes and extraocular photoreceptors (drosal photosensitive vesicles in the enoploteuthid squid Abraliopsis sp. B and pineal organs in the myctophid fish Myctophum spinosum) were alternately exposed to overhead light or covered by a small opaque shield above the animal and the bioluminescent response of the animal was monitored. Covering either the eyes or the extraocular photoreceptors resulted in a reduction in the intensity of counterillumination. Preliminary experiments examining the bioluminescent feedback mechanism for monitoring intensity of bioluminescence during counterillumination in the midwater squid Abralia trigonura indicated that the ventral photosensitive vesicles are responsible for bioluminescent feedback

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research