Background The Mexican tetra, Astyanax mexicanus, includes interfertile surface-dwelling and cave-dwelling morphs, enabling powerful studies aimed at uncovering genes involved in the evolution of cave-associated traits. Compared to surface fish, cavefish
Amanda K. Powers +12 more
doaj +1 more source
Genetic linkage of distinct adaptive traits in sympatrically speciating crater lake cichlid fish
Genetic linkage of ecologically relevant traits has been suggested to facilitate sympatric speciation. Here, Fruciano et al. show in sister species of cichlid fish the genetic non-independence of genomic regions responsible for differentiation in body ...
Carmelo Fruciano +5 more
doaj +1 more source
Morphofunctional Analysis of the Quadrate of Spinosauridae (Dinosauria: Theropoda) and the Presence of Spinosaurus and a Second Spinosaurine Taxon in the Cenomanian of North Africa. [PDF]
Six quadrate bones, of which two almost certainly come from the Kem Kem beds (Cenomanian, Upper Cretaceous) of south-eastern Morocco, are determined to be from juvenile and adult individuals of Spinosaurinae based on phylogenetic, geometric morphometric,
Christophe Hendrickx +2 more
doaj +1 more source
Foraging environment determines the genetic architecture and evolutionary potential of trophic morphology in cichlid fishes [PDF]
Phenotypic plasticity allows organisms to change their phenotype in response to shifts in the environment. While a central topic in current discussions of evolutionary potential, a comprehensive understanding of the genetic underpinnings of plasticity is
Albertson, R. Craig +7 more
core +2 more sources
Divergent functional traits in three sympatric Arctic charr Salvelinus alpinus morphs are not coupled with the age of the lineage divergence [PDF]
Three genetically discrete morphs of Arctic charr in Loch Rannoch, Scotland originated from a recent divergence within the lake (in situ) (piscivore and benthivore morphs) and from secondary contact of two older lineages (ex situ; a planktivore–piscivore/
Adams, Colin +4 more
core +2 more sources
Inconspicuous breeding coloration to conceal eggs during mouthbrooding in male cardinalfish
Summary: Animals exhibit colorations optimal for their niche, which hides their existence from other organisms. In Apogoninae fishes, the father broods their egg inside their mouth.
Hikaru Ishihara, Shinji Kanda
doaj +1 more source
Osteology and relationships of Rhinopycnodus gabriellae gen. et sp. nov. (Pycnodontiformes) from the marine Late Cretaceous of Lebanon [PDF]
The osteology of Rhinopycnodus gabriellae gen. and sp. nov., a pycnodontiform fish from the marine Cenomanian (Late Cretaceous) of Lebanon, is studied in detail.
Capasso, Luigi, Taverne, Louis
core +3 more sources
Multiple indicators have been used to assess the degree of exposure of fish to anthropogenic chemicals in their stream habitats. We hypothesized that brook stickleback (Culaea inconstans) in a headwater stream receiving urban and agricultural runoff ...
Neal D. Mundahl, Kelsey A. Hoffmann
doaj +1 more source
Resource polymorphism is a ubiquitous phenomenon in vertebrates and may represent a critical intermediate stage in speciation. Freshwater lakes in high‐altitude areas represent a natural system for understanding resource polymorphism in fishes benefiting
Jialing Qiao +8 more
doaj +1 more source
We present ultrathin flexible transparent electrodes through iCVD‐enabled molecular control of 10 nm gold films on poly(dimethylaminomethylstyrene). In vivo validation demonstrated photoelectric artifact reduction vs. opaque electrodes and preservation of natural neural dynamics.
Tae Jin Mun +11 more
wiley +1 more source

