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Marine Ecology
Chapter 2: Marine Ecology
| Question | Answer |
|---|---|
| transition between two different ecosystems | ecotone |
| habitats above and below the continental shelf, respectively | Neritic and Oceanic |
| bottom-dwellers live in this zone | Benthic Zone |
| ecotone between an ocean and a river with brackish water | estuary |
| average salinity in an estuary in ppt | 17 |
| what happens when the outflow of river water dominates inflow of ocean water- denser ocean water sinks below | salt wedge |
| this kind of estuary is formed by the faulting of land surfaces | tectonic estuary |
| this forms a bar-built estuary | sand bar or barrier island |
| this is a body of salt or brackish water completely isolated from the deep sea- forms within an attoll | lagoon |
| coral polyps form this main component of coral reefs | CaCO3 |
| this type of reef is separated from the coast by a lagoon | barrier reef |
| this is the oldest type of reef- caused by complete submersion of the island | atoll |
| this tree lives in coastal saltwater environments- its mangal root assemblage provides homes for many organisms | mangrove tree |
| the ecotone between terrestrial and marine environments | coastal wetlands |
| what is the importance of coastal wetlands? | they prevent flooding by absorbing water and filter out pollution |
| this is the section of shore between high and low tides | littoral habitat (intertidal zone) |
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