Neurophysiology of sea fish olfactory system: ecological and evolutional aspects

26 March 2011
Written by Doroshenko M.A.

  UDK: 597.2/.5:591.185.34:591.18 | Pages: 83-88 | Read full textDownload PDF 


The paper provides an overview of the results of morphofunctional studies of the olfactory system organs of sea and migratory fish with regard to their ecology and systematic position, summarises up‑to‑date notions about flagellate and microvillar types of the olfactory receptors and discusses secretory system of the olfactory epithelium that includes in several species specialised alveolar and tubular glands like Bowman›s glands, its role in primary processes of the olfactory reception, and protective response in case of toxicant exposure. Analysing materials on the olfactory organ evolution allows to identify general tendency to reduce the total surface and rugosity of olfactory rosettes of cartilaginous and bony fishes, for example, progressive trend of the evolution – homologon oligomerisation. As reported, the levels of hyper‑, macro‑, medium‑, and microsmatia depend on ecological features being observed in various fish species.

Links to authors:

M.A. Doroshenko
Far Eastern State Technical Fisheries University (52a Lugovaya St. Vladivostok 690950 Russian Federation)

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