Crawford, R.J.M.; Cooper, J.; Dyer, B.M.; Wolfaardt, A.C.; Tshingana, D.; Spencer, K.; Petersen, S.L.; Nel, J.L.; Keith, D.G.; Holness, C.L.; Hanise, B.; Greyling, M.D.; Du Toit, M.
(South African Journal of Marine Science-Suid-Afrikaanse Tydskrif Vir Seewetenskap, 2003)