Olfactory cues that indicate predation risk elicit a number of defensive behaviors in fishes, but whether they are sufficient to also induce morphological defenses has received little attention. Cichlids are characterized by a high level of morphological
Maria E. ABATE, Andrew G. ENG, Les KAUFMAN
doaj +5 more sources
Larval development of Hypsophrys nicaraguensis (Pisces: Cichlidae) under laboratory conditions
The cichlid Hypsophrys nicaraguensis is a popular fish known as butterfly, and despite its widespread use as pets, little is known about its reproductive biology.
Alex Molina Arias
doaj +8 more sources
In search of new brain biomarkers of stress [PDF]
The aim: of the study was to investigate the level of ghrelin in various brain structures during a stress response in Zebrafish to a predator, to evaluate this indicator as a potential biomarker of stress, and the effect of a benzodiazepine tranquilizer (
Petr D. Shabanov +4 more
doaj +7 more sources
Similarities in biological processes can be used to bridge ecology and molecular biology. [PDF]
Abstract Much of the research in biology aims to understand the origin of diversity. Naturally, ecological diversity was the first object of study, but we now have the necessary tools to probe diversity at molecular scales. The inherent differences in how we study diversity at different scales caused the disciplines of biology to be organized around ...
Hallin J +6 more
europepmc +2 more sources
Ecological and evolutionary consequences of selective interspecific information use [PDF]
Recent work has shown that animals frequently use social information from individuals of their own species as well as of other species, yet the consequences of social information use remain poorly understood. Furthermore, information users may be selective in their social information use, deciding from whom and how to use information, but this has been
Reetta Hämäläinen +5 more
wiley +4 more sources
Habitat light sets the boundaries for the rapid evolution of cichlid fish vision, while sexual selection can tune it within those limits [PDF]
Abstract Cichlid fishes' famous diversity in body coloration is accompanied by a highly diverse and complex visual system. Although cichlids possess an unusually high number of seven cone opsin genes, they express only a subset of these during their ontogeny, accounting for their astonishing interspecific variation in visual sensitivities. Much of this
Ralph F. Schneider +3 more
wiley +3 more sources
Keratocytes migrate against flow with a roly-poly-like mechanism. [PDF]
peer reviewedWhile cell migration can be directed by various mechanical cues such as force, deformation, stiffness, or flow, the associated mechanisms and functions may remain elusive.
Seveau de Noray V +7 more
europepmc +3 more sources
Lowland streams of the Caribbean Costa Rican slope are naturally enriched by minerals and solutes such as phosphorus, a phenomenon known as geothermal input. The resulting stream phosphorus gradient affects the food web by altering primary production, leading to complex biotic and abiotic interactions.
Jimena Golcher Benavides +2 more
wiley +1 more source
The macroparasite fauna of cichlid fish from Nicaraguan lakes, a model system for understanding host-parasite diversification and speciation. [PDF]
Santacruz A +2 more
europepmc +1 more source
Discovery of an F-actin-binding small molecule serving as a fluorescent probe and a scaffold for functional probes. [PDF]
Takagi T +14 more
europepmc +1 more source

