title: [Adaptive increase of serotonergic system activity in tissues of half-migratory and migratory fish at increased water salinity].
abstract: The article deals with studies of the serotoninergic system activity in different tissues of half-migratory fish--the Caspian roach (Rutilus rutilus caspicus) and carpbream (Abramis brama orientalis)--and migratory fish--shemaya (Chalcalburnus chalcoides) caught in fresh and brackish waters, as well as in the common carp (Cyprinus carpio L.) tissues under effect of brackish water in model experiments. Using indirect solid-phase ELISA-test, the serotoninergic system activity was evaluated by measuring in the tissues of the studied fish the serotonin-modulated anticonsolidation protein (SMAP) which is in linear relationship with serotonin level. There was found a significant elevation of the SMAP levels in the brain of the Caspian roach, carpbream, shemaya, and the common carp under effect of increased water sainity. The revealed increase of the SMAP content in brains of the Caspian roach, carpbream, shemaya, and the common carp under action of increased water salinity reflects the corresponding elevated activity of the serotoninergic system and indicates involvement of adaptive readjustments in the animals' body.
authors.forename: N J
authors.initials: NJ
authors.lastname: Mustafaev
authors.forename: A A
authors.initials: AA
authors.lastname: Mekhtiev
mesh_terms: D000818:Animals; D001921:Brain / Q000378:metabolism; D003530:Cyprinidae / Q000378:metabolism* / Q000502:physiology; D029941:Fish Proteins / Q000235:genetics / Q000378:metabolism*; D055049:Salt Tolerance; D012701:Serotonin / Q000378:metabolism*
chemical_list: D029941:Fish Proteins; D012701:Serotonin