Question 1

Catches above the maximum sustainable yield:

Accepted Answer

A) can be increased to prevent overfishing. 
B) produce decreased fishing effort. 
C) result in increased populations of the target species. 
D) result in overfishing. 
E) result in underutilization of the target species. 
A) can be increased to prevent overfishing. 
B) produce decreased fishing effort. 
C) result in increased populations of the target species. 
D) result in overfishing. 
E) result in underutilization of the target species.

Question 2

In temperate oceans of the northern hemisphere during the summer months:

Accepted Answer

A) nutrient concentrations are high, solar input is low, and dissolved oxygen decreases. 
B) nutrient concentrations are high, solar input is high, and dissolved oxygen decreases. 
C) nutrient concentrations are high, solar input is high, and dissolved oxygen increases. 
D) nutrient concentrations are low, solar input is high, and dissolved oxygen decreases. 
E) nutrient concentrations are low, solar input is high, and dissolved oxygen increases. 
A) nutrient concentrations are high, solar input is low, and dissolved oxygen decreases. 
B) nutrient concentrations are high, solar input is high, and dissolved oxygen decreases. 
C) nutrient concentrations are high, solar input is high, and dissolved oxygen increases. 
D) nutrient concentrations are low, solar input is high, and dissolved oxygen decreases. 
E) nutrient concentrations are low, solar input is high, and dissolved oxygen increases.

Question 3

The amount of carbon dioxide concentrations and available nutrients affect the rate of primary production in an ecosystem.

Accepted Answer

A) True 
 B)False

Question 4

The group of marine macroscopic algae with the highest abundance and greatest geographic distribution belong to the Division Rhodophyta.

Accepted Answer

A) True 
 B)False

Question 5

Match the organism or definition with the correct description of its food preference. Use each choice once, more than once, or not at all.
-sand star (Astropecten)

Accepted Answer

A) decomposer 
B) detritivore 
C) herbivore 
D) autotroph 
E) omnivore
F)carnivore 
A) decomposer 
B) detritivore 
C) herbivore 
D) autotroph 
E) omnivore
F)carnivore

Question 6

If the total caloric content of the autotrophic organisms in a marine ecosystem were 250,000 kilocalories (kcal), then the expected caloric value for the trophic-level consumers at the second level would be 2,500 kcal.

Accepted Answer

A) True 
 B)False

Question 7

If 10,000 kilocalories (kcal)of energy were contained in the primary producers (trophic level 1), on average how many kcal of energy would you expect to be transferred to second-order consumers (trophic level 3)?

Accepted Answer

A) 10,000 kcal 
B) 1,000 kcal 
C) 100 kcal 
D) 10 kcal 
E) 1 kcal 
A) 10,000 kcal 
B) 1,000 kcal 
C) 100 kcal 
D) 10 kcal 
E) 1 kcal

Question 8

The process by which energy is derived from solar radiation that is used by certain organisms to form organic matter is called:

Accepted Answer

A) photosynthesis. 
B) chemosynthesis. 
C) upwelling. 
D) visible light. 
E) biomass. 
A) photosynthesis. 
B) chemosynthesis. 
C) upwelling. 
D) visible light. 
E) biomass.

Question 9

Compensation depth is the depth in the ocean where the photosynthetic rate exceeds the rate of cellular respiration.

Accepted Answer

A) True 
 B)False

Question 10

The standing stock of a population is the maximum number or biomass of individuals that can be removed sustainably.

Accepted Answer

A) True 
 B)False

Question 11

The efficiency of trophic transfers in ecosystems is on average around:

Accepted Answer

A) 75%. 
B) 50%. 
C) 30%. 
D) 10%. 
E) 5%. 
A) 75%. 
B) 50%. 
C) 30%. 
D) 10%. 
E) 5%.

Question 12

The area of the ocean that produces the largest standing stock of commercial fish is in the:

Accepted Answer

A) coastal areas. 
B) bathypelagic zone. 
C) mesopelagic zone. 
D) tropical areas. 
E) upwelling areas. 
A) coastal areas. 
B) bathypelagic zone. 
C) mesopelagic zone. 
D) tropical areas. 
E) upwelling areas.

Question 13

-Discuss the formation of the Gulf of Mexico dead zone. Why does this area form in the warmer months of the year?

Accepted Answer

Dead zones are areas of the oceans and r

Question 14

Overproduction of organic matter resulting in anoxic conditions is attributed to:

Accepted Answer

A) autotrophication. 
B) eutrophication. 
C) net primary productivity. 
D) photoperiodicity. 
E) phototropism. 
A) autotrophication. 
B) eutrophication. 
C) net primary productivity. 
D) photoperiodicity. 
E) phototropism.

Question 15

Match the organism with its correct descriptor of energy use or trophic level. Use each choice once, more than once, or not at all.
-sand star (or starfish)

Accepted Answer

A) decomposer 
B) consumer 
C) producer 
A) decomposer 
B) consumer 
C) producer

Question 16

Match the term or phrase with its best descriptor. Use each answer once, more than once, or not at all.
-standing stock

Accepted Answer

A) catch limit 
B) dolphins and other mammal protection 
C) farming of commercial fish and shellfish 
D) catch size that reduces the population of target species 
E) incidental catch
F)turtle exclusion devices (TEDs)
G)maximum catch without reducing the population of target species
H)available biomass of a target species 
A) catch limit 
B) dolphins and other mammal protection 
C) farming of commercial fish and shellfish 
D) catch size that reduces the population of target species 
E) incidental catch
F)turtle exclusion devices (TEDs)
G)maximum catch without reducing the population of target species
H)available biomass of a target species

Question 17

Match the term or phrase with its best descriptor. Use each answer once, more than once, or not at all.
-aquaculture

Accepted Answer

A) catch limit 
B) dolphins and other mammal protection 
C) farming of commercial fish and shellfish 
D) catch size that reduces the population of target species 
E) incidental catch
F)turtle exclusion devices (TEDs)
G)maximum catch without reducing the population of target species
H)available biomass of a target species 
A) catch limit 
B) dolphins and other mammal protection 
C) farming of commercial fish and shellfish 
D) catch size that reduces the population of target species 
E) incidental catch
F)turtle exclusion devices (TEDs)
G)maximum catch without reducing the population of target species
H)available biomass of a target species

Catches above the maximum sustainable yield:

In temperate oceans of the northern hemisphere during the summer months:

The amount of carbon dioxide concentrations and available nutrients affect the rate of primary production in an ecosystem.

The group of marine macroscopic algae with the highest abundance and greatest geographic distribution belong to the Division Rhodophyta.

Match the organism or definition with the correct description of its food preference. Use each choice once, more than once, or not at all. -sand star (Astropecten)

If the total caloric content of the autotrophic organisms in a marine ecosystem were 250,000 kilocalories (kcal), then the expected caloric value for the trophic-level consumers at the second level would be 2,500 kcal.

If 10,000 kilocalories (kcal)of energy were contained in the primary producers (trophic level 1), on average how many kcal of energy would you expect to be transferred to second-order consumers (trophic level 3)?

The process by which energy is derived from solar radiation that is used by certain organisms to form organic matter is called:

Compensation depth is the depth in the ocean where the photosynthetic rate exceeds the rate of cellular respiration.

The standing stock of a population is the maximum number or biomass of individuals that can be removed sustainably.

The efficiency of trophic transfers in ecosystems is on average around:

The area of the ocean that produces the largest standing stock of commercial fish is in the:

-Discuss the formation of the Gulf of Mexico dead zone. Why does this area form in the warmer months of the year?

Overproduction of organic matter resulting in anoxic conditions is attributed to:

Match the organism with its correct descriptor of energy use or trophic level. Use each choice once, more than once, or not at all. -sand star (or starfish)

Match the term or phrase with its best descriptor. Use each answer once, more than once, or not at all. -standing stock

Match the term or phrase with its best descriptor. Use each answer once, more than once, or not at all. -aquaculture

Introduction to Planet Earth

Plate Tectonics and the Ocean Floor

Marine Provinces

Marine Sediments

Water and Seawater

Air-Sea Interaction

Ocean Circulation

Waves and Water Dynamics

Tides

The Coast: Beaches and Shoreline Processes

The Coastal Ocean

Marine Life and the Marine Environment

Animals of the Pelagic Environment

Animals of the Benthic Environment

The Oceans and Climate Change

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Exam 13: Biological Productivity and Energy Transfer

Catches above the maximum sustainable yield:

In temperate oceans of the northern hemisphere during the summer months:

The amount of carbon dioxide concentrations and available nutrients affect the rate of primary production in an ecosystem.

The group of marine macroscopic algae with the highest abundance and greatest geographic distribution belong to the Division Rhodophyta.

Match the organism or definition with the correct description of its food preference. Use each choice once, more than once, or not at all. -sand star (Astropecten)

If the total caloric content of the autotrophic organisms in a marine ecosystem were 250,000 kilocalories (kcal), then the expected caloric value for the trophic-level consumers at the second level would be 2,500 kcal.

If 10,000 kilocalories (kcal)of energy were contained in the primary producers (trophic level 1), on average how many kcal of energy would you expect to be transferred to second-order consumers (trophic level 3)?

The process by which energy is derived from solar radiation that is used by certain organisms to form organic matter is called:

Compensation depth is the depth in the ocean where the photosynthetic rate exceeds the rate of cellular respiration.

The standing stock of a population is the maximum number or biomass of individuals that can be removed sustainably.

The efficiency of trophic transfers in ecosystems is on average around:

The area of the ocean that produces the largest standing stock of commercial fish is in the:

-Discuss the formation of the Gulf of Mexico dead zone. Why does this area form in the warmer months of the year?

Overproduction of organic matter resulting in anoxic conditions is attributed to:

Match the organism with its correct descriptor of energy use or trophic level. Use each choice once, more than once, or not at all. -sand star (or starfish)

Match the term or phrase with its best descriptor. Use each answer once, more than once, or not at all. -standing stock

Match the term or phrase with its best descriptor. Use each answer once, more than once, or not at all. -aquaculture

Introduction to Planet Earth

Plate Tectonics and the Ocean Floor

Marine Provinces

Marine Sediments

Water and Seawater

Air-Sea Interaction

Ocean Circulation

Waves and Water Dynamics

Tides

The Coast: Beaches and Shoreline Processes

The Coastal Ocean

Marine Life and the Marine Environment

Animals of the Pelagic Environment

Animals of the Benthic Environment

The Oceans and Climate Change

Filters