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The terminal nerve: a new chemosensory system in vertebrates?
Leo S. Demski,RG Northcutt +1 more
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Correlations between terminal nerve projections and neurobehavioral studies suggest that the terminal nerve mediates responses to sex pheromones.Abstract:
Ganglion cells of the terminal nerve in goldfish are located in the olfactory nerve and bulb and send peripheral processes into the olfactory epithelium and central processes to the supracommissural nuclei of the telencephalon as well as to the retina. Correlations between terminal nerve projections and neurobehavioral studies suggest that the terminal nerve mediates responses to sex pheromones.read more
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Neuropeptides and the control of food intake in fish.
Hélène Volkoff,Luis Fabián Canosa,Suraj Unniappan,José Miguel Cerdá-Reverter,Nicholas J. Bernier,Scott P. Kelly,R.E. Peter +6 more
TL;DR: In goldfish, nutritional status can modify the expression of mRNAs encoding a number of orexigenic peptides, which provides further evidence for their roles as appetite regulators: (1) brain mRNA expression of CCK, CART, tachykinins, galanin, ghrelin, and NPY undergo peri-prandial variations; and (2) fasting increases the brain RNA expression of NPY, AgRP, and gh Relin as well as serum
Journal ArticleDOI
Feeding behaviour and digestive physiology in larval fish: current knowledge, and gaps and bottlenecks in research
TL;DR: A holistic understanding of feeding ecology and digestive functions is important for designing diets for fish larvae and the adaptation of rearing conditions to meet requirements for the best presentation of prey and microdiets, and their optimal ingestion, digestion and absorption.
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Chemotopic, Combinatorial, and Noncombinatorial Odorant Representations in the Olfactory Bulb Revealed Using a Voltage-Sensitive Axon Tracer
TL;DR: The results indicate that the OB is organized into functional subregions processing classes of odorants, and suggest that individual odorants can be represented by “combinatorial” or “noncombinator” (focal) activity patterns and that the latter may serve to process odorants triggering distinct responses such as that of pheromones.
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F prostaglandins function as potent olfactory stimulants that comprise the postovulatory female sex pheromone in goldfish.
TL;DR: It is determined that waterborne prostaglandins function as potent olfactory stimulants for mature male goldfish and that hormones and their metabolites may commonly serve as reproductive pheromones in fish.
References
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Chemical Communication in Fish
TL;DR: In most of the chemically mediated interactions surveyed it is not clear that communication in a generally accepted sense is involved, or whether fish are simply responding adaptively to those metabolic products which inevitably "leak" into the environment and only fortuitously provide "information" to conspecifics.
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Centrifugal innervation of the retina by luteinizing hormone releasing hormone (LHRH)-immunoreactive telencephalic neurons in teleostean fishes.
TL;DR: It is proposed that the nucleus olfactoretinalis anatomically and functionally interconnects and integrates parts of the olfactory and optic systems.
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LHRH systems in the brain of platyfish
TL;DR: The Luteinizing hormone-releasing hormone (LHRH) system of the platyfish Xiphophorus has been studied using immunohistochemistry and retrograde transport of horseradish peroxidase (HRP) as discussed by the authors.
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The nervus terminalis of the guinea pig: a new luteinizing hormone-releasing hormone (LHRH) neuronal system.
TL;DR: LHRH‐immunoreactive cells and axons of the nervus terminalis are in intimate contact with cerebral blood vessels and the cerebrospinal fluid along the intracranial course of this nerve, deep to the meninges.