| bioluminescence(expression, nature, ecology, ecosystem) |
| biomass(expression, nature, ecology, ecosystem) |
| bokkura(noun, activity, vessel, boat) |
| brackish marsh(expression, nature, ecology, ecosystem) |
| cape islander(expression, activity, vessel, boat) |
| cascade effect(expression, nature, ecology, ecosystem) |
| coble(noun, activity, vessel, boat) |
| colored dissolved organic matter(expression, nature, ecology, ecosystem) |
| coracle(noun, activity, vessel, boat) |
| couta(noun, activity, vessel, boat) |
| currach(noun, activity, vessel, boat) |
| dead zone(expression, nature, ecology, ecosystem) |
| dhoni(noun, activity, vessel, boat) |
| dogger(noun, activity, vessel, boat) |
| dugout(noun, activity, vessel, boat) |
| ecohydrology(expression, nature, ecology, ecosystem) |
| environmental quality(expression, nature, ecology, ecosystem) |
| eutrophication(expression, nature, ecology, ecosystem) |
| falkusa(noun, activity, vessel, boat) |
| felucca(noun, activity, vessel, boat) |