Mai J, Goswami S K, Bruckner G, Kinsella J E
Prostaglandins. 1981 May;21(5):691-8. doi: 10.1016/0090-6980(81)90226-4.
The concentrations of prostaglandins PGE3 and PGF3 alpha were 214 and 1500 ng/g wet trout gill tissue, respectively. A new prostaglandin, tentatively identified by gas chromatography/mass spectrometry as C22-PGF4 alpha (590 ng/g wet tissue) was discovered. This was synthesized from docosahexaenoic acid.