Skip to content. | Skip to navigation

Personal tools

 
 
 
 

 
                 
You are here: Home / Associated publications / Belgian Journal of Zoology / Bibliographic References / Microscopic observation of the retinal photoreceptor layer of the common barbel (Teleostei: Cyprinidae)

P Compere and P Poncin (1996)

Microscopic observation of the retinal photoreceptor layer of the common barbel (Teleostei: Cyprinidae)

BELGIAN JOURNAL OF ZOOLOGY, 126(1):49-56.

Light and electron microscopic observations show that cones-belonging to four types are present in the retina of the common barbel Barbus barbus (L.): short single cones, long single cones, twin cones, and unequal double cones. They do not exhibit any particular arrangement. Estimates of cone density suggest that the common barbel has multichromatic vision but of low acuity and that no difference exists between the lower and the upper parts of the retina. Both cone density (approximately 3000 units/mm(2)) and the proportion of double cones to single cones (approximately 1:3) are low. The view that the barbel has an inferior colour vision is in good agreement with the fact that this species is active mainly at twilight, but with diurnal activity during spawning.

Barbus barbus; Teleostei; Cyprinidae; retina; photoreceptors; colour perception
BJZ

ISSN 2295-0451 (online version)
ISSN 0777-6279 (printed version)
impact factor 2015: 0,87.

Editor-in-Chief:
Prof. Dr. Isa Schön
Royal Belgian Institute of Natural Sciences
Vautierstraat 29
1000 Brussels, Belgium

 



1863-1903
Annales de la Société malacologique de Belgique
 
1903-1923
​Annales de la Société royale malacologique et zoologique de Belgique
 
1923-1989
Annales de la Société Royale Zoologique de Belgique
 
1989-
Belgian Journal of Zoology