Results 91 to 100 of about 17,678 (274)
Sex group composition, social interaction, and metabolism in the fish Nile tilapia
Brazilian Journal of BiologyWe tested whether the fish Nile tilapia (Oreochromis niloticus) in a monosex male group spends more energy and displays an agonistic profile, differently from males in male-female groups.
TB. Carvalho, E. Gonçalves-de-Freitas
doaj +1 more source
Back to Tanganyika: a case of recent trans-species-flock dispersal in East African haplochromine cichlid fishes [PDF]
Royal Society Open Science, 2015 The species flocks of cichlid fishes in the East African Great Lakes are the largest vertebrate adaptive radiations in the world and illustrious textbook examples of convergent evolution between independent species assemblages.
Britta S. Meyer +6 more
doaj +1 more source
A novel apparatus for studying fish cognition in the wild
Methods in Ecology and Evolution, EarlyView.Abstract Fish show a huge variation of ecological, anatomical and behavioural traits, which makes them prime subjects for studying behaviour, cognition and their evolution. Lab‐based studies allow a controlled examination of some of the mechanisms underpinning cognition and have yielded many insights into fish cognitive abilities.
Catarina Vila‐Pouca +7 more
wiley +1 more source
Carotenoid-based coloration in cichlid fishes
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2014 Animal colors play important roles in communication, ecological interactions and speciation. Carotenoid pigments are responsible for many yellow, orange and red hues in animals. Whereas extensive knowledge on the proximate mechanisms underlying carotenoid coloration in birds has led to testable hypotheses on avian color evolution and signaling, much ...
Ethan D. Clotfelter +3 more
openaire +3 more sources
Scientific Reports, 2022 The Nicaraguan lakes represent an ideal continent-island-like setting to study the colonization patterns of both fish and their parasites. The dominant fish fauna are cichlids, particularly the Midas cichlid species complex Amphilophus spp., a well ...
Ana Santacruz +2 more
doaj +1 more source
Cichlid: Explicit physical memory management for large machines [PDF]
arXiv, 2019 In this paper, we rethink how an OS supports virtual memory. Classical VM is an opaque abstraction of RAM, backed by demand paging. However, most systems today (from phones to data-centers) do not page, and indeed may require the performance benefits of non-paged physical memory, precise NUMA allocation, etc.
arxiv
Molecular biology and evolution, 2019 Cichlid fishes provide textbook examples of explosive phenotypic diversification and sympatric speciation, thereby making them ideal systems for studying the molecular mechanisms underlying rapid lineage divergence.
P. Franchini +6 more
semanticscholar +1 more source
Metabolic adjustments in Satanoperca aff. jurupari (Perciformes: Cichlidae)
Genetics and Molecular Biology, 2003 In this paper, we describe the enzyme levels and isozyme distribution in skeletal and heart muscle of Satanoperca aff. jurupari, (Cichlidae, subgroup Geophaginae). LDH and CS were measured in skeletal and heart muscle. Starch gel electrophoresis was used
Chippari-Gomes Adriana R. +4 more
doaj
Computer simulations on the sympatric speciation modes for the Midas cichlid species complex [PDF]
arXiv, 2007 Cichlid fishes are one of the best model system for the study of evolution of the species. Inspired by them, in this paper we simulated the splitting of a single species into two separate ones via random mutations, with both populations living together in sympatry, sharing the same habitat.
arxiv
Genome Biology and Evolution, 2019 The initial sequencing of 5 cichlid genomes revealed an accumulation of genetic variation, including extensive copy number variation in cichlid lineages particularly those that have undergone dramatic evolutionary radiation.
J. Faber-Hammond +4 more
semanticscholar +1 more source