Question 1

Match the genus with its most closely associated common name.
-Soft-shelled clam

Accepted Answer

A) Mya 
B) Urosalpinx 
C) Ulva 
A) Mya 
B) Urosalpinx 
C) Ulva

Question 2

Match the process with its most closely associated estuarine mixing type.
-Tidal overmixing

Accepted Answer

A) Evaporation can exceed freshwater input. 
B) Fresh water flows over seawater. 
C) Dense surface seawater mixes into freshwater below. 
A) Evaporation can exceed freshwater input. 
B) Fresh water flows over seawater. 
C) Dense surface seawater mixes into freshwater below.

Question 3

Define the following terms:

Accepted Answer

A coastal plain estuary is formed betwee

Question 4

Match the process with its most closely associated result.
-Bar-built

Accepted Answer

A) sediment based barrier islands 
B) water-filled, steep-sided valleys 
C) sediment deposition at the upper river mouth 
A) sediment based barrier islands 
B) water-filled, steep-sided valleys 
C) sediment deposition at the upper river mouth

Question 5

Larval oysters attach themselves to:

Accepted Answer

A)  They do not have specific requirements. 
B)  any available solid substrate. 
C)  other oyster shells. 
D)  both b and c 
E)  sand. 
A)  They do not have specific requirements. 
B)  any available solid substrate. 
C)  other oyster shells. 
D)  both b and c 
E)  sand.

Question 6

Ecologically mud flat areas are a focal area of:

Accepted Answer

A)  nutrient recycling. 
B)  primary production. 
C)  tertiary consumers. 
D)  nutrient sink. 
E)  sessile epifauna. 
A)  nutrient recycling. 
B)  primary production. 
C)  tertiary consumers. 
D)  nutrient sink. 
E)  sessile epifauna.

Question 7

Match the process/epoch with its most closely associated estuary type.
-Coastal plain

Accepted Answer

A) glacial formed 
B) land movement 
C) inter-glacial periods 
A) glacial formed 
B) land movement 
C) inter-glacial periods

Question 8

Match the plant with its most closely associated substrate attachment method.
-Rhizomes

Accepted Answer

A) algae 
B) red mangrove 
C) seagrasses 
D) black mangrove 
A) algae 
B) red mangrove 
C) seagrasses 
D) black mangrove

Question 9

Match the primary producer with its most closely associated herbivore.
-Zostera

Accepted Answer

A) soft-shell clam 
B) waterfowl 
C) green turtles 
A) soft-shell clam 
B) waterfowl 
C) green turtles

Question 10

Considering that species diversity in estuaries is limited by constant changes in salinity, temperature, and water movement, where, vertically, in an estuary would one expect to find the greatest species diversity? The least species diversity?

Accepted Answer

Looking at the vertical zones of an estu

Question 11

Match the process with its most closely associated estuarine mixing type.
-Positive estuary

Accepted Answer

A) Evaporation can exceed freshwater input. 
B) Fresh water flows over seawater. 
C) Dense surface seawater mixes into freshwater below. 
A) Evaporation can exceed freshwater input. 
B) Fresh water flows over seawater. 
C) Dense surface seawater mixes into freshwater below.

Question 12

Salt marsh communities predominate in temperate and subarctic areas.

Accepted Answer

A) True 
 B)False

Question 13

Most burrowing animals of estuaries exchange gases with their environment through their skin.

Accepted Answer

A) True 
 B)False

Question 14

A euryhaline species can tolerate:

Accepted Answer

A)  a wide range of temperatures. 
B)  a narrow range of temperatures. 
C)  a wide range of salinities. 
D)  a narrow range of salinities. 
A)  a wide range of temperatures. 
B)  a narrow range of temperatures. 
C)  a wide range of salinities. 
D)  a narrow range of salinities.

Question 15

In a well-mixed estuary, river flow is ____ tidal currents.

Accepted Answer

A)  greater than 
B)  less than 
C)  perpendicular to 
D)  equal to 
A)  greater than 
B)  less than 
C)  perpendicular to 
D)  equal to

Question 16

When sediment removal is less than input we often find:

Accepted Answer

A)  fjords. 
B)  tectonic estuaries. 
C)  tidal flats. 
D)  bar-built estuaries. 
E)  drowned river valleys. 
A)  fjords. 
B)  tectonic estuaries. 
C)  tidal flats. 
D)  bar-built estuaries. 
E)  drowned river valleys.

Question 17

Pneumatophores of black mangroves are:

Accepted Answer

A)  prop roots. 
B)  aerial roots. 
C)  germinated seeds. 
D)  pores on leaves. 
E)  salt-excreting structures. 
A)  prop roots. 
B)  aerial roots. 
C)  germinated seeds. 
D)  pores on leaves. 
E)  salt-excreting structures.

Question 18

In a salt-wedge estuary the relationship between salinity and depth is that salinity:

Accepted Answer

A)  is even from top to bottom. 
B)  increases with depth. 
C)  changes abruptly with depth. 
D)  varies horizontally. 
E)  decreases with depth. 
A)  is even from top to bottom. 
B)  increases with depth. 
C)  changes abruptly with depth. 
D)  varies horizontally. 
E)  decreases with depth.

Question 19

The species diversity in estuaries is high, but the number of individuals is low.

Accepted Answer

A) True 
 B)False

Question 20

Seagrasses can reach high productivity levels with the aid of:

Accepted Answer

A)  oxygen brought to their roots via mud shrimp burrows. 
B)  symbiotic, nitrogen-fixing bacteria. 
C)  their leaves, cleared of epiphytes by grazers. 
D)  fertilization by manatees. 
E)  eutrophic water conditions. 
A)  oxygen brought to their roots via mud shrimp burrows. 
B)  symbiotic, nitrogen-fixing bacteria. 
C)  their leaves, cleared of epiphytes by grazers. 
D)  fertilization by manatees. 
E)  eutrophic water conditions.

Match the genus with its most closely associated common name. -Soft-shelled clam

Match the process with its most closely associated estuarine mixing type. -Tidal overmixing

Define the following terms:

Match the process with its most closely associated result. -Bar-built

Larval oysters attach themselves to:

Ecologically mud flat areas are a focal area of:

Match the process/epoch with its most closely associated estuary type. -Coastal plain

Match the plant with its most closely associated substrate attachment method. -Rhizomes

Match the primary producer with its most closely associated herbivore. -Zostera

Considering that species diversity in estuaries is limited by constant changes in salinity, temperature, and water movement, where, vertically, in an estuary would one expect to find the greatest species diversity? The least species diversity?

Match the process with its most closely associated estuarine mixing type. -Positive estuary

Salt marsh communities predominate in temperate and subarctic areas.

Most burrowing animals of estuaries exchange gases with their environment through their skin.

A euryhaline species can tolerate:

In a well-mixed estuary, river flow is ____ tidal currents.

When sediment removal is less than input we often find:

Pneumatophores of black mangroves are:

In a salt-wedge estuary the relationship between salinity and depth is that salinity:

The species diversity in estuaries is high, but the number of individuals is low.

Seagrasses can reach high productivity levels with the aid of:

Science and Marine Biology

Fundamentals of Ecology

Geology of the Ocean

Water, Waves, and Tides

Biological Concepts

Marine Microbes

Multicellular Primary Producers

Lower Invertebrates

Higher Invertebrates

Marine Fishes

Reptiles and Birds

Marine Mammals

Intertidal Communities

Coral Reef Communities

Continental Shelves and Neritic Zone

The Open Sea

Life in the Oceans Depths

Harvesting the Oceans Resources

Oceans in Jeopardy

Filters

Exam 14: Estuaries

Match the genus with its most closely associated common name. -Soft-shelled clam

Match the process with its most closely associated estuarine mixing type. -Tidal overmixing

Define the following terms:

Match the process with its most closely associated result. -Bar-built

Larval oysters attach themselves to:

Ecologically mud flat areas are a focal area of:

Match the process/epoch with its most closely associated estuary type. -Coastal plain

Match the plant with its most closely associated substrate attachment method. -Rhizomes

Match the primary producer with its most closely associated herbivore. -Zostera

Considering that species diversity in estuaries is limited by constant changes in salinity, temperature, and water movement, where, vertically, in an estuary would one expect to find the greatest species diversity? The least species diversity?

Match the process with its most closely associated estuarine mixing type. -Positive estuary

Salt marsh communities predominate in temperate and subarctic areas.

Most burrowing animals of estuaries exchange gases with their environment through their skin.

A euryhaline species can tolerate:

In a well-mixed estuary, river flow is ____ tidal currents.

When sediment removal is less than input we often find:

Pneumatophores of black mangroves are:

In a salt-wedge estuary the relationship between salinity and depth is that salinity:

The species diversity in estuaries is high, but the number of individuals is low.

Seagrasses can reach high productivity levels with the aid of:

Science and Marine Biology

Fundamentals of Ecology

Geology of the Ocean

Water, Waves, and Tides

Biological Concepts

Marine Microbes

Multicellular Primary Producers

Lower Invertebrates

Higher Invertebrates

Marine Fishes

Reptiles and Birds

Marine Mammals

Intertidal Communities

Coral Reef Communities

Continental Shelves and Neritic Zone

The Open Sea

Life in the Oceans Depths

Harvesting the Oceans Resources

Oceans in Jeopardy

Filters