I've seen the posted photo elsewhere with it acknowledged to Library and Archives Canada, though a quick search of its collections does not show that particular photo as being available on-line. There are however a few in the LAC collection that include Admiral Jones.
Of note, this one that may have been taken at around the same time and with RAdm Jones in the company of another (future) Chief of Naval Staff.
It is captioned (incorrectly? re Jones' rank) as:
Hon. Angus L. Macdonald, Minister of National Defence for Naval Services, aboard H.M.C.S. "Ottawa". (Left to right): Commodore G.C. Jones, Mr. Macdonald, Commander [E.R.] Mainguy.
What most would envision as a proper sea-going admiral
Captioned : Rear-Admiral G.C. Jones, Chief of the Naval Staff, Royal Canadian Navy (R.C.N.), St. John's, Newfoundland, 3 February 1944
And in colour