Results 31 to 40 of about 25,769 (226)
Introduced predator elicits deficient brood defence behaviour in a crater lake fish. [PDF]
PLoS ONE, 2012 Introduced species represent one of the most serious global threats to biodiversity. In this field-based study, we assessed behavioural responses of brood tending cichlid fish to an invasive predator of their offspring.
Topi K Lehtonen +2 more
doaj +1 more source
Predator avoidance in extremophile fish [PDF]
, 2013 Extreme habitats are often characterized by reduced predation pressures, thus representing refuges for the inhabiting species. The present study was designed to investigate predator avoidance of extremophile populations of Poecilia mexicana and P ...
Arias-Rodriguez, Lenin +7 more
core +2 more sources
Produce Male Cichlids Only [PDF]
Biomedical Journal of Scientific & Technical Research, 2021 The Nile tilapia is one of the most important fresh water in world aquaculture [1] it is wildly cultured in many trobical and sub tribical countries of the world [2] the major concern for tilapia aquaculture is excessive reproduction and results small size of fish produced...
openaire +1 more source
Croatian Journal of Fisheries, 2016 Coptodon walteri Thys van den Audenaerde 1968, an endemic cichlid of Ivory Coast and Liberia, is assessed as Near Threatened due to fishing pressure and loss of habitats, and aquatic pollution as a result of extensive clandestine gold mining in the bed ...
Konan Felix Koffi +4 more
doaj +1 more source
Early stages of sympatric homoploid hybrid speciation in crater lake cichlid fishes
Nature Communications, 2022 Here, the authors present a rare example of sympatric homoploid hybrid speciation, without ploidy changes, in the Midas cichlid fishes from Nicaragua. Midas cichlid hybrids occupy a different ecological niche, likely facilitated by body shape adaptations.
Melisa Olave +3 more
doaj +1 more source
Reduced genetic diversity and the success of the invasive peacock bass (Cichliformes: Cichlidae)
Brazilian Journal of Biology, 2021 Several species of Cichla successfully colonized lakes and reservoirs of Brazil, since the 1960’s, causing serious damage to local wildlife. In this study, 135 peacock bass were collected in a reservoir complex in order to identify if they represented a ...
S. C. S. Luz +7 more
doaj +1 more source
Ecosystem size predicts eco-morphological variability in a postglacial diversification [PDF]
, 2017 Identifying the processes by which new phenotypes and species emerge has been a long-standing effort in evolutionary biology. Young adaptive radiations provide a model to study patterns of morphological and ecological diversification in environmental ...
Adams, Colin E. +3 more
core +1 more source
Hematology in ornamental discus fish Symphysodon discus from Amazonian, Brazil [PDF]
Brazilian Journal of BiologySymphysodon discus is known in the world of aquariums for its market value, beauty, and behavior. However, more substantial information about its physiology and biology must be available, which can hinder its development and maintenance in breeding ...
M. W. S. Ribeiro +2 more
doaj +1 more source
Ecology and Evolution, 2023 Phenotypic plasticity enables development to produce multiple phenotypes in response to environmental conditions. Plasticity driven variation has been suggested to play a key role in adaptive divergence, and plasticity itself can evolve.
Kirsty McWhinnie +3 more
doaj +1 more source
Subordinate Fish Mediate Aggressiveness Using Recent Contest Information
Frontiers in Ecology and Evolution, 2021 Memorizing dominance relationships can help animals avoid unwinnable subsequent contests. However, when competitive ability changes over time—for example, as a function of condition—it may be adaptive to “forget” these dominance relationships and for ...
Takashi Hotta +5 more
doaj +1 more source