Kenneth: 20% fat content is about what I have in my records also. My reference is: Payne,S.A., BC Johnson and RS Otto, 1999. Proximate Composition of some North Eastern Pacific Forage Fish Fish Oceanogr 8:3 p 159-177 Try also searching under eulachon, oolichan, hooligan, ulichan, oulachen, hoolikan Regards W. E. Lorne Clayton, RPBio. President 0000,8080,8080IEC INTERNATIONAL Collaborative Marine Research and Development Ltd. 4829 Maplegrove Street Victoria, BC, CANADA V8Y 3B9 Phone 250-250-658-0179 Fax 250-658-4709 E-mail clayton@ieccorporate.com Web Page http//www.ieccorporate.com