Estuaries/salt marshes/mangroves

Question 1

estuary

Answer 1

semi enclosed bodies of water, fresh water/salt water mix, productive

Question 2

drowned river valleys

Answer 2

formed due to sea level rise

Question 3

fjords

Answer 3

glaciers create valleys and sea levels fill in

Question 4

bar-built

Answer 4

deposition of sediments

Question 5

tectonic

Answer 5

faulting/folding

Question 6

3 types of estuaries

Answer 6

salt wedge, partially mixed, well mixed

Question 7

salt wedge

Answer 7

wedge of salt comes in at bottom, river dominated little tidal input, sharp halocline, surface flow

Question 8

partially mixed

Answer 8

high tidal input, water mixed by tides, bottom flow, developed halocline

Question 9

well mixed

Answer 9

tide dominated, water fully mixed, no halocline

Question 10

stressful environments

Answer 10

low species biodiversity, high salinity but less diversity

Question 11

benthic fauna

Answer 11

rocky (filter feeders), mud/sand (deposit feeders)

Question 12

lagoons

Answer 12

shallow bodies of water, little freshwater

Question 13

salt marsh

Answer 13

flats covered in vegetation, flood daily

Question 14

high marsh

Answer 14

neap high to highest spring tide

Question 15

low marsh

Answer 15

low water to neap tide

Question 16

salt marsh growth

Answer 16

youthful stage (built in sediment, plants develop), mature marsh (happens when 1/2 of marsh is high marsh), high marsh (deposition to high marsh)

Question 17

what creates split over marsh

Answer 17

longshore drift

Question 18

sediment cores

Answer 18

construct past environments

Question 19

mangroves

Answer 19

distribution depends on temperature, tides, water chemistry

Question 20

reproduction

Answer 20

seeds grow from branches which drops into water and grows

Question 21

manatees

Answer 21

threatened by pollution/habitat destruction