http://www.coralcoe.org.au – current research on reefs and a wide range of other resources
http://www.gbrmpa.gov.au/ Great Barrier Reef Marine Park Authority (issues, photos, the organisation)
Check out your local library, good technical libraries may include: Universities, Fisheries and environmental authorities. Here are some that may help.
Coral Reefs
Hutchings, P, Kingsford, MJ, Hoegh‑Guldberg, O. (2019) 2nd Edition – Great Barrier Reef: Biology, Environment and Management. CSIRO Publishing and CRC Press. 465 pp.
Moro C. (2015) Ecology of Fishes on coral reefs Cambridge
Bernhard et al (2008) Coral Reefs of the USA, Springer.
Sale PF (2002) Coral reef fishes. Academic Press, London
Temperate Reefs
Andrew, N.L. (1999) Under Southern Seas: the ecology of Australia’s rocky reefs, UNSW Press, Sydney
Bennett I (1987) W.J. Dakin’s classic study: Australian Seashores. Angus & Robertson, London
Shepherd, S., Edgar G. (2013) Ecology of Australian Temperate Reefs: the unique south CSIRO.
Kingsford & Battershill 1998, “Studying Temperate Marine Environments” Canterbury University Press http://www.cup.canterbury.ac.nz
Underwood, A.J. & Chapman, M.G. (1995) Coastal marine ecology of temperate Australia. NSW Press, Sydney