MacNeil M. A. auteur aut IRD Graham N. A. J. auteur aut IRD Conroy M. J. auteur aut IRD Fonnesbeck C. J. auteur aut IRD Polunin N. V. C. auteur aut IRD Rushton S. P. auteur aut IRD Chabanet Pascale auteur aut IRD McClanahan T. R. auteur aut IRD text journalArticle eng text/pdf born digital access This study shows how capture-mark-recapture (CMR) models can provide robust estimates of detection heterogeneity (sources of bias) in underwater visual-census data. Detection biases among observers and fish family groups were consistent between fished and unfished reef sites in Kenya, even when the overall level of detection declined between locations. Species characteristics were the greatest source of detection heterogeneity and large, highly mobile species were found to have lower probabilities of detection than smaller, site-attached species. Fish family and functional-group detectability were also found to be lower at fished locations, probably due to differences in local abundance. Because robust CMR models deal explicitly with sampling where not all species are detected, their use is encouraged for studies addressing reef-fish community dynamics. specialized Bayesian Marine protected area Mark-recapture Reef fishes 036 73 7 1748-1763 2008 0022-1112 https://www.documentation.ird.fr/hor/fdi:010044120 10.1111/j.1095-8649.2008.02067.x 0022-1112 [F B010044120] https://www.documentation.ird.fr/hor/fdi:010044120 https://www.documentation.ird.fr/intranet/publi/2008/12/010044120.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2009-01-09 2017-08-23 fdi:010044120 fre