A Typology for Reef Passages

Coral reefs host exceptionally diverse and abundant marine life. Connecting coasts sheltered lagoons to the open ocean, reef passages are important yet poorly studied components of these ecosystems. Abiotic biotic elements ‘pass’ through passages, supporting critical ecological processes (e.g. fish spawning). Reef provide multiple social benefits for islands their peoples, but so far neither characterized nor recognized multifaceted significance. This study investigated 113 across nine Pacific (Fiji, New Caledonia, Vanuatu). GIS-based visual interpretations satellite imagery were used develop criteria define three distinct types, mainly based on distance coastline presence/absence an enclosed water body. The discussion identifies ways refine augment this preliminary typology as part a research agenda passages. With next steps, will be extendable other regions better document various roles, biodiversity conservation sustainable fisheries management.