A natural refuge provides an inaccessible area that can protect populations from exploitation (Karpov et al. 1998, Tyler et al. 2009). This concept has been adopted by marine resource management to identify and protect habitats that preserve species and provide sources of replenishment to fisheries beyond no-take areas (Rowley 1994, McClanahan and Mangi 2000, Roberts et al. 2001). In Belize, a broad network of marine reserves has been established to protect environmental health and support socio-economic needs and where the extraction of Queen conch (Lobatus gigas) by free-diving fishers provides significant revenue (Acosta 2006, Babcock et al. 2015, Dahlgren and Tewfik 2015).