According to the ISSN portal, issues for 1968-1991 have ISSN 0020-6466 and key title: Journal du Conseil - Conseil international pour l'exploration de la mer.
English, German, and French.
"Current bibliography" in each issues, beginning with v. 1, no. 3, Aug. 1926; in the first two numbers of v. 1 the place of the current bibliography is taken by "A selected bibliography of marine bionomics and fishery investigation. Compiled by E.J. Allen" (issued also separately)