title: Effect of stress on the circadian rhythmicity of hypothalamic catecholamine content in the eel (Anguilla anguilla l.).
mesh_terms: D000811:Anguilla / Q000378:metabolism*; D000818:Animals; D002940:Circadian Rhythm; D004558:Electric Stimulation; D005453:Fluorescence; D007031:Hypothalamus / Q000378:metabolism*; D013312:Stress, Physiological / Q000378:metabolism*