Results 21 to 30 of about 6,154 (213)

Inner ear morphology in the Atlantic molly Poecilia mexicana [PDF]

open access: yes, 2011
Fishes show an amazing diversity in hearing abilities, inner ear structures, and otolith morphology. Inner ear morphology, however, has not yet been investigated in detail in any member of the diverse order Cyprinodontiformes.
Hess, Martin   +2 more
core   +1 more source

Inner ear morphology in the Atlantic molly Poecilia mexicana--first detailed microanatomical study of the inner ear of a cyprinodontiform species. [PDF]

open access: yesPLoS ONE, 2011
BACKGROUND: Fishes show an amazing diversity in hearing abilities, inner ear structures, and otolith morphology. Inner ear morphology, however, has not yet been investigated in detail in any member of the diverse order Cyprinodontiformes.
Tanja Schulz-Mirbach   +2 more
doaj   +1 more source

Patterns and drivers of Nothobranchius killifish diversity in lowland Tanzania

open access: yesEcology and Evolution, 2022
Temporary pools are seasonal wetland habitats with specifically adapted biota, including annual Nothobranchius killifishes that survive habitat desiccation as diapausing eggs encased in dry sediment.
Martin Reichard   +5 more
doaj   +1 more source

Combining morphology, scanning electron microscopy, and molecular phylogeny to evaluate the taxonomic power of scales in genus Aphanius Nardo, 1827 (Teleostei: Cyprinodontidae)

open access: yesArchives of Polish Fisheries, 2017
Scale morphology and its structural details were studied with morphometry, geometric morphometrics, and scanning electron microscopy in five Iranian Aphanius species and examined comparatively with molecular phylogeny. Scales were cycloid and circular in
Teimori Azad   +2 more
doaj   +1 more source

Patterns of Macroinvertebrate and Fish Diversity in Freshwater Sulphide Springs

open access: yesDiversity, 2014
Extreme environments are characterised by the presence of physicochemical stressors and provide unique study systems to address problems in evolutionary ecology research.
Ryan Greenway   +3 more
doaj   +1 more source

Development of the caudal-fin skeleton reveals multiple convergent fusions within Atherinomorpha

open access: yesFrontiers in Zoology, 2021
Background The caudal fin of teleosts is a highly diverse morphological structure and a valuable source of information for comparative analyses. Within the Atherinomorpha a high variation of conditions of the caudal-fin skeleton can be found. These range
Philipp Thieme, Peter Warth, Timo Moritz
doaj   +1 more source

Mating and aggressive behaviour of Brachyrhaphis olomina (Cyprinodontiformes: Poeciliidae) [PDF]

open access: yesJournal of Ethology, 2017
Abstract Despite the increasing interest in the use of intromittent male genitalia and coercive mating behaviour in poeciliids, detailed studies of the mating behaviour of most species in this family are lacking. We describe here the mating and aggressive behaviours of Brachyrhaphis olomina, and correlate them with the condition of the female’
Garita Alvarado, Carlos A.   +2 more
openaire   +4 more sources

SPERMATOGONIES ET SPERMATOCYTES FLAGELLÉS CHEZ POECILIA RETICULATA (TÉLÉOSTÉENS CYPRINODONTIFORMES) [PDF]

open access: yesAnnales de Biologie Animale Biochimie Biophysique, 1969
La présence d'un flagelle sur des spermatogonies et spermatocytes et de 2 flagelles sur des spermatides est décrite chez le Guppy (Poecilia reticulata). Les flagelles présents sur les gonies et spermatocytes sont plus courts que ceux des spermatides et débouchent directement hors des cellules. Le mode de formation des flagelles est discuté.
Billard, Roland   +2 more
openaire   +2 more sources

Descripción de una nueva especie del género Fundulopanchax Myers, 1924 (Cyprinodontiformes, Aplocheilidae), para la ictiofauna continental de Guinea Ecuatorial

open access: yesGraellsia, 2001
Se describe una nueva especie perteneciente al género Fundulopanchax Myers, 1924 (Cyprinodontiformes, Aplocheilidae), para la ictiofauna continental, región Litoral de Bata, de Guinea Ecuatorial.
F. Malumbres, R. Castelo
doaj   +1 more source

Asymmetric paternal effect on offspring size linked to parent-of-origin expression of an insulin-like growth factor [PDF]

open access: yes, 2017
Research was supported by PAPIIT grant IN216111 (CMG), CONACyT PhD scholarship 351769 (YSL), and the Howard Hughes International Research Program (JPVC).Sexual reproduction brings together reproductive partners whose long-term interests often differ ...
Abrahamson   +73 more
core   +1 more source

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