| Subject | English | Spanish |
| agric. | artificial reef | arrecife artificial |
| environ. | barrier reef | arrecife de coral |
| UN, geol. | barrier reef | arrecife barrera |
| environ. | barrier reef An elongated accumulation of coral lying at low-tide level parallel to the coast but separated from it by a wide and deep lagoon or strait. The coral is thought to have formed initially on a flat surface: then as the sea-level rose in post-glacial times, thereby submerging the irregular wave-cut platform, the coral growth kept pace with the rising ocean level, so creating the great thickness witnessed today in such places as the Great Barrier Reef off the East coast of Queensland, Australia. This stretches for more than 1900 km and varies in width from about 30 km to 150 km | arrecife de coral |
| ichtyol. | blacktail reef shark | tiburón coralero rabinegro Carcharhinus wheeleri |
| ichtyol. | blacktip reef shark | tiburón de puntas negras Carcharhinus melanopterus |
| fish.farm. | black-tip reef shark | tiburón de aletas negras (Carcharhinus melanopterus) |
| ichtyol. | Caribbean reef shark | tiburón coralino Carcharhinus perezi |
| ichtyol. | Caribbean reef squid | calamar de arrecife Sepioteuthis sepioidea |
| scub. | coral reef | el arrecife de coral |
| environ. | coral reef Coral reefs have been built up from the skeletons of reef-building coral a small primitive marine animal, and other marine animals and algae over thousands of years. They occur in clear, shallow and sunlit seas. Coral reefs are one of the most productive and diverse ecosystems and are estimated to yield about 12% of the world's fish catch. They are very vulnerable to any change in their environment, especially pollution, because it makes the water opaque. They must have light in order that photosyntesis by the algae can take place. Like trees, corals reflect the environmental conditions in which they grow, indicating marine pollution, sea-surface temperature and other aquatic conditions | arrecife de coral |
| tech. | coral reef | cayo |
| environ. | coral reef lagoon | laguna de arrecife de coral |
| environ. | coral reef lagoon A coastal stretch of shallow saltwater virtually cut off from the open sea by a coral reef | laguna de arrecife de coral |
| min.prod. | drying reef | arrecife emergente |
| hobby, transp. | effective reefed inlet area | área efectiva de entrada en rizado |
| hobby, transp. | first reefed open | primera apertura campana rizada |
| earth.sc. | fringing reef | arrecife costanero |
| UN | Global Coral Reef Monitoring Network | Red mundial de vigilancia de los arrecifes de coral |
| ichtyol. | grey reef shark | tiburón de arrecifes Carcharhinus amblyrhynchos |
| life.sc. | ice reefing | escollos de hielo |
| life.sc. | ice reefing | crestas de compresión |
| UN | International Coral Reef Action Network | Red de acción internacional en defensa de los arrecifes de coral |
| org.name. | International Coral Reef Initiative | Iniciativa internacional sobre los arrecifes de coral |
| hobby, transp. | maximum reefed force | fuerza máxima de rizado |
| hobby, transp. | mid-gore skirt reefing | rizado central de borde ataque |
| nat.sc., life.sc. | natural inshore reef | arrecife natural costero |
| ichtyol. | reef croaker | bombache de roca Odintoscion dentex |
| fishery | reef fish | pez de arrecife |
| dril. | reef formation | form ación arrecifal |
| nat.sc. | reef heron | garceta negra (Egretta gularis, Egretta gularis gularis) |
| mater.sc. | reef knot | nudo de barquero |
| mater.sc. | reef knot | nudo de batelero |
| fish.farm. | reef knot | nudo de rizo |
| fish.farm. | reef knot | nudo plano |
| fish.farm. | reef knot | nudo llano |
| med. | reef knot | nudo en rizo |
| med. | reef knot | nudo de marinero |
| med. | reef knot | nudo cuadrato |
| hobby, transp. | reef point | tomadores de rizo |
| ichtyol. | reef shark | tiburón coralino Carcharhinus perezi |
| hobby, scient. | reefed diameter | diámetro de rizado |
| hobby, transp. | reefed inlet area | área de entrada en rizado |
| hobby, transp. | reefed open | apertura de rizado |
| hobby, transp. | reefed open force | esfuerzo de apertura en rizado |
| hobby, tech. | reefed opening shock factor | factor de choque de apertura en rizado |
| hobby, transp. | reefed projected area | área proyectada de rizado |
| transp. | reefing band | faja de rizos |
| transp. | reefing band | faja |
| hobby, transp. | reefing line | línea de rizado |
| hobby, mech.eng. | reefing line cutter | seccionador de línea de rizado |
| hobby, transp. | reefing line force | esfuerzo en la línea de rizado |
| hobby, transp. | reefing ratio | relación de rizado |
| hobby, transp. | to shake out a reef | largar los rizos |
| hobby, transp. | skirt reefing | rizado del borde de ataque |
| hobby, transp. | skirt reefing line length | longitud línea de rizado del borde ataque |
| hobby, transp. | skirt reefing ratio | relación de rizado del borde de ataque |
| ichtyol. | whitetip reef shark | tiburón coralero ñato Triaenodon obesus |
| org.name. | Working Party on Artificial Reefs and Mariculture | Grupo de Trabajo sobre los Arrecifes Artificiales y la Maricultura |
