OCEA 2000Y Midterm: Test on lectures 7-13

• School: Dalhousie University
• Department: Oceanography
• Course: OCEA 2000Y
• Professor: Paul Hill

Document Summary

Identify a dominant primary producer in north american dune ecosystems: diatoms, american beach grass, laminaria, spartina alterniflora, none of the above. Identify a process that focuses wave energy on deposits of sediment near the mouth of a river in a delta on a wave-exposed shoreline. 2: refraction, deposition, erosion, upwelling, downwelling, what is the typical colour of mud that is anoxic, brown, yellow, grey, black, rust. In which type of estuary would you find limited vertical stratification and increasing salinities moving seaward: salt wedge estuary, tectonic estuary, well-mixed estuary. 4: it is grazed by herbivores, it becomes peat, it becomes detritus, and then is consumed by detritivores, it reverts to inorganic carbon before entering the food chain, none of the above. How are young, developing mangroves dispersed from the parent tree: by air, by water, by underground propagation. 5: by grazers, none of the above. To what phylum do reef-building corals belong: porifera, mollusca, ctenophora, cnidaria, scyphozoa.