title: Ultrastructural changes in the caudal neurosecretory cells of the trout Salvelinus fontinalis in relation to external salinity.
mesh_terms: D000818:Animals; D009489:Neurosecretion; D009490:Neurosecretory Systems / Q000648:ultrastructure*; D012487:Salmonidae / Q000033:anatomy & histology*; D012623:Seawater; D013997:Time Factors; D014337:Trout / Q000033:anatomy & histology* / Q000502:physiology; D014867:Water; D014882:Water-Electrolyte Balance
chemical_list: D014867:Water