Work

Morphologic evidence for seasonal changes in the pineal organ of the goldfish, Carassius auratus ; a quantitative study

Year: 1982

Type: article

Abstract: A quantitative morphologic study of photoreceptor cells in pineal organ of the goldfish was conducted over a period of one year in which the photoperiod-temperature regime simulated the natural environment. Statistically significant seasonal differences were found in cell size, nuclei, nucleoli, mitochondria, endoplasmic reticulum, and Golgi bodies. Peak values generally occurred during the fall and winter months, while minimum values coincided with the reproductive spring and summer seasons. Histological examination of the gonads indicated that the fish followed the normal sexual cycle. These data suggest that the pineal organ is functionally related to photoperiod, temperature, and gonadal maturation in this species.

Source: annales de biologie animale biochimie biophysique

DOI: 10.1051/rnd:19820716

Author: J. A. McNULTY

Institutions: Loyola University Medical Center, Loyola University Chicago, Loyola Medicine

Language: English

Topic: Circadian rhythm and melatonin

Subfield: Endocrine and Autonomic Systems

Field: Neuroscience

Domain: Life Sciences

Open Access status: bronze

Funder: National Science Foundation

OpenAlex ID: W2087206487