Title

Ambient Salinity and the Daily Variation of Circulating Prolactin in the Gulf Killifish Fundulus grandis

Document Type

Article

Publication Date

1979

Keywords

Diel rhythm, Killifish, Prolactin, Salinity

Publication Title

Journal of Interdisciplinary Cycle Research

ISSN

0022-1945

Volume

10

Issue/No.

3

First Page

233

Last Page

238

Peer Reviewed

1

Abstract

Gulf killifish were maintained in either 3‰ or 35‰ commercial sea salts on a LD 12:12 photoperiod regime and sampled by heart puncture at one of 6 different times of day. Maximum titers of circulating prolactin occurred at the same time of day (8h after light onset) in fish acclimated to either 3‰ or 35‰. Fish acclimated to 3‰ had an additional increase in serum prolactin (8h after light offset) not noted in 35‰ acclimated fish.

DOI

10.1080/09291017909359674