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Oviposition and development in the glass frog Hyalinobatrachium orientale (Anura: Centrolenidae) [PDF]
Oviposition and development in the glass frog Hyalinobatrachium orientale (Anura: Centrolenidae). Oviposition and external embryonic developmental features are described in the Tobago glass frog, Hyalinobatrachium orientale.
Downie, J. Roger+2 more
core +3 more sources
Eggs of some stick insects bear external appendages called capitula. Foraging worker ants attracted by capitula disperse eggs in a response similar to the responses of workers to elaiosome-bearing seeds of many plants.
Yoshiyuki Toyama+2 more
doaj +1 more source
Cryopreservation of common carp sperm [PDF]
Experiments were carried out to investigate the effect of five extenders (sucrose, glucose, fructose, KCl and a saline carp sperm extender) and two cryoprotectants (dimethyl-sulfoxide (DMSO) and methanol) on the cryopreservation of common carp sperm ...
Horváth, Ákos+2 more
core +1 more source
Ionic Stress Prompts Premature Hatching of Zebrafish (Danio rerio) Embryos
Ionic homeostasis is an essential component of functioning cells, and ionic stress imposed by excessive salinity can disrupt cellular and physiological processes.
James Ord
doaj +1 more source
Hatching Strategies in Monogenean (Platyhelminth) Parasites that Facilitate Host Infection [PDF]
In parasites, environmental cues may influence hatching of eggs and enhance the success of infections. The two major endoparasitic groups of parasitic platyhelminths, cestodes (tapeworms) and digeneans (flukes), typically have high fecundity, infect more
Armstrong+13 more
core +1 more source
Timing of Sandeel Spawning and Hatching Off the East Coast of Scotland
The lesser sandeel, Ammodytes marinus, is a key forage fish species in the North Sea. Mean lengths and abundances of sandeels have declined steeply since the 1990's and these are associated with declining breeding success of various seabird species on ...
Alan MacDonald+3 more
doaj +1 more source
Cyst nematodes account for substantial annual yield losses in crop production worldwide. Concerns over environmental and health issues due to the use of chemical nematicides mean alternative sustainable and integrated solutions are urgently required ...
Bruno Ngala+15 more
doaj +1 more source
Effects of fluazuron on the biological parameters of engorged females of Rhipicephalus microplus
The objective of this study was to evaluate the biological parameters of Rhipicephalus microplus engorged females exposed to the arthropod growth regulator fluazuron.
Fabrício Nascimento Gaudêncio+7 more
doaj +1 more source
In many arthropods, the appearance of new segments and their differentiation are not completed by the end of embryogenesis but continue, in different form and degree, well after hatching, in some cases up to the last post-embryonic molt.
Giuseppe Fusco, Alessandro Minelli
doaj +1 more source
The effects of assisted hatching on the hatching process and implantation [PDF]
The rationale for assisted hatching Among the numerous reasons that could explain the low implantation rate of embryos used for in-vitro fertilization (IVF), an impairment of in-vivo hatching has been proposed as a possible cause of implantation failure by Cohen et aI. (1990a).
openaire +3 more sources