Search results for "Astyanax hubbsi"

showing 4 items of 4 documents

Morphological Differences in Neuromasts of the Blind Cave Fish <i>Astyanax hubbsi </i>and the Sighted River Fish <i>Astyanax mexica…

1990

Vital staining and scanning electron microscopy were used to study the morphology of superficial neuromasts in the blind cave fish, Astyanax hubbsi, and its sighted congener, <i&

Astyanax hubbsigeographygeography.geographical_feature_categoryZoologyCavefishAnatomyBiologybiology.organism_classificationhumanitiesbody regionsCharacidaeBehavioral NeuroscienceDevelopmental NeuroscienceCaveFish <Actinopterygii>Brain, Behavior and Evolution
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Studies on the effects of Ca2++ and Co++ on the swimming behavior of the blind Mexican cave fish

1992

The hypothesis that the blind cave fish (Astyanax hubbsi) adjusts the level of stimulation to its lateral line system (LLS) by varying its own velocity was examined. When the sensitivity of the LLS sense organs was reduced by lowering the Ca2+ concentration in the water or by adding Co2+ the fish compensated for this by swimming at a higher velocity.

geographyAstyanax hubbsigeography.geographical_feature_categorySense organPhysiologyLateral lineMineralogyZoologyBiologyBehavioral NeuroscienceCaveFish <Actinopterygii>Animal Science and ZoologyEcology Evolution Behavior and SystematicsJournal of Comparative Physiology A
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The Forebrain of the Blind Cave Fish &lt;i&gt;Astyanax hubbsi &lt;/i&gt;(Characidae)

1997

This paper presents a survey of the cell groups in the telencephalon of the teleost Astyanax hubbsi, based on series of transverse sections stained with the Nissl-, Kluver-Barrera and Bodian procedure

geographyAstyanax hubbsigeography.geographical_feature_categorybiologyAnatomybiology.organism_classificationCharacidaeBehavioral Neurosciencesymbols.namesakeDevelopmental NeuroscienceCaveForebrainNissl bodysymbolsFish <Actinopterygii>Brain, Behavior and Evolution
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Long-term habituation to spatial novelty in blind cave fish (Astyanax hubbsi): role of the telencephalon and its subregions.

2000

Blind cave fish, when released into a novel environment, show a typical exploratory behavior characterized by high swim speed along walls shortly after release. This behavior wanes during prolonged exposure and thus may reflect habituation to novelty. As the hippocampus of mammals, which plays a crucial role in spatial learning, is part of the telencephalon, the possible involvement of this brain structure of fish was investigated in exploratory behavior. Ablation of the whole telencephalon or bilateral removal of dorsal parts of the hemispheres reduced activity; in contrast, unilateral lesions of one hemisphere, bilateral lesions of dorsal and dorsoventral parts, and removal of olfactory b…

MaleTelencephalonTime FactorsCognitive NeuroscienceHippocampusBiologyArousalCellular and Molecular NeuroscienceCavemedicineAnimalsHabituationHabituation PsychophysiologicgeographyAstyanax hubbsiCommunicationgeography.geographical_feature_categoryBehavior AnimalCerebrumbusiness.industryfungiFishesNoveltyOlfactory BulbNeuropsychology and Physiological Psychologymedicine.anatomical_structurenervous systemExploratory BehaviorFish <Actinopterygii>FemalebusinessNeuroscienceLearning &amp; Memory
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