Results 71 to 80 of about 17,994 (219)
Journal of Fish Biology, EarlyView.Abstract Alternative male morphs are found in many species of fishes. These morphs often differ in suites of social behaviours, such as aggression and territoriality, associated with alternative reproductive tactics. Such consistent morph‐typical behavioural profiles suggest common differences in underlying neuroendocrine mechanisms.
Adam R. Reddon +2 more
wiley +1 more source
Parasite, 2014 Clinostomidae are digeneans characterized by a complex taxonomic history, continuously under revision based on both morphological and molecular analysis.
M. Caffara +7 more
semanticscholar +1 more source
Journal of Fish Biology, EarlyView.Abstract A new species of pearl cichlid of the ‘Geophagus’ brasiliensis species group, endemic to the Piranga River, a major tributary of the upper Doce River basin in the state of Minas Gerais, southeastern Brazil, is herein described. The new species is delimited using an integrative approach, with molecular‐based species delimitation methods coupled
Cidimar E. de Assis +7 more
wiley +1 more source
BMC Biology, 2014 BackgroundLake Tanganyika, an ancient lake in the Great Rift Valley, is famous for the adaptive radiation of cichlids. Five tribes of the Cichlidae family have acquired herbivory, with five ecomorphs: grazers, browsers, scrapers, biters and scoopers ...
H. Hata +5 more
semanticscholar +1 more source
The cognitive role of concept variability
Mind &Language, EarlyView.I present and defend concept variability, the view that concepts can admit of indefinitely many variations and changes in their representational contents without thereby losing their identity. I argue that the variability of concepts is central to their role in enabling cognition, and thus that a concept's content variability is, despite philosophical ...
Alnica Visser
wiley +1 more source
Phenotypic integration of brain size and head morphology in Lake Tanganyika Cichlids
BMC Evolutionary Biology, 2014 BackgroundPhenotypic integration among different anatomical parts of the head is a common phenomenon across vertebrates. Interestingly, despite centuries of research into the factors that contribute to the existing variation in brain size among ...
Masahito Tsuboi +2 more
semanticscholar +1 more source
Innervation Drives Postembryonic Expansion of the Zebrafish Anterior Lateral Line System
Journal of Comparative Neurology, Volume 534, Issue 1, January 2026.A dramatic expansion of the anterior lateral line system occurs during zebrafish ontogeny, largely driven by the addition of superficial neuromasts. Here, we describe a new hybrid‐origin mechanism of neuromast addition and uncover a larval‐stage developmental switch to an innervation‐dependent phase of expansion.
Theresa J. Christiansen +2 more
wiley +1 more source
Reproductive ecology of a neotropical cichlid fish, Cichla monoculus (Osteichthyes: Cichlidae)
Brazilian Journal of Biology, 2003 The reproductive ecology of the freshwater fish Cichla monoculus Spix, 1831 (Osteichthyes: Cichlidae) was investigated in the Campo Grande Reservoir, Northeast Brazil.
Chellappa S. +4 more
doaj
Multiple Episodic Evolution Events in V1R Receptor Genes of East-African Cichlids
Genome Biology and Evolution, 2014 Fish use olfaction to detect a variety of nonvolatile chemical signals, and thus, this sense is key to survival and communication. However, the contribution of the olfactory sense to social—especially reproductive—interactions in cichlids is still ...
M. Nikaido +9 more
semanticscholar +1 more source
Ecology and Evolution, Volume 16, Issue 1, January 2026.This study morphologically analyzed 385 Diptychus maculatus from 5 Tarim River Basin populations. Using traditional and geometric morphometrics, it revealed environmental (high‐altitude cold, rapids, reservoir flows) and human‐driven morphological differentiation.
Yichao Hao +6 more
wiley +1 more source