𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The effects of temperature and season of collection on the onset and duration of diapause in embryos of the annual fishNothobranchius guentheri

✍ Scribed by Markofsky, Jules ;Matias, Jonathan R.

Publisher
John Wiley and Sons
Year
1977
Tongue
English
Weight
808 KB
Volume
202
Category
Article
ISSN
0022-104X

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Annual fish are found in temporary bodies of water in habitats of alternating rainy and dry seasons. The populations survive the dry seasons in the form of embryos encased in the bottom mud. Several genera of annual fish have been reported to exhibit diapause (developmental arrest) at three specific stages of development and it has been proposed that through this adaptation the populations are able to survive the variable durations of the dry seasons. The effects of incubation and spawning temperatures, and season of collection on the onset and duration of diapause in laboratory populations of the annual fish, Nothobranchius guentheri, were studied. At low incubation and spawning temperatures there was a prolongation of Diapause I and Diapause II. In addition, fish spawned at 25Β°C during the short days of winter produced embryos that entered a prolonged duration of Diapause II, whereas embryos produced during the long days of summer bypassed Diapause II.

πŸ“œ SIMILAR VOLUMES

The survival of embryos of the annual fi
The survival of embryos of the annual fishNothobranchius guentheri exposed to temperature extremes and the subsequent effects on embryonic Diapause
✍ Matias, Jonathan R. ;Markofsky, Jules πŸ“‚ Article πŸ“… 1978 πŸ› John Wiley and Sons 🌐 English βš– 596 KB

## Abstract __Nothobranchius guentheri__ is an East African annual fish found in temporary bodies of water in areas of alternating rainy and dry seasons. During the dry season the embryos may be exposed to temperature extremes. Embryos have been reported to undergo diapause (developmental arrest),

The effect of the presence of adult fish
The effect of the presence of adult fishes, gonad homogenates, and embryo homogenates on the dispersion-reaggregation phase during early embryonic development of the annual fishNothobranchius korthausae
✍ Levels, P. J. ;van Tits, L. J. H. ;DenucΓ©, J. M. πŸ“‚ Article πŸ“… 1986 πŸ› John Wiley and Sons 🌐 English βš– 558 KB

The effect of the presence of adults of the annual fish Nothe branchius korthausae on development of eggs of this species was investigated. If the eggs were incubated in glass tanks together with adult females, embryonic development was prolonged during the dispersion-reaggregation phase. Furthermor

Effects of temperature and moisture on e
Effects of temperature and moisture on embryonic diapause of the veiled chameleon (Chamaeleo calyptratus)
✍ Andrews, Robin M. ;Donoghue, Susan πŸ“‚ Article πŸ“… 2004 πŸ› John Wiley and Sons 🌐 English βš– 96 KB πŸ‘ 1 views

## Abstract The development of lizard embryos is typically initiated at fertilization and continues until birth or hatching. In contrast, embryonic development of some chameleons is arrested at the gastrula stage, and embryos remain at this stage for months after the eggs are laid. Our research tes