Question 1

When did the world population reach 6 billion?

Accepted Answer

A) Not yet: it is expected to reach 6 billion by 2010 
B) Not yet: it is expected to reach 6 billion by 2020 
C) 1985 
D) 1990 
E) Late 1990s

Question 2

By the early 2000s,farmed fish accounted for approximately what percentage of the total world consumption?

Accepted Answer

A) 1% 
B) 2% 
C) 10% 
D) 20% 
E) 100%

Question 3

In the North Altlantic,which fish stock appears to be experiencing growth due to conservation efforts?

Accepted Answer

A) Sharks 
B) Tunas 
C) Cod 
D) Clupeids 
E) Swordfish

Question 4

Which of the following is a renewable resource from the marine environment?

Accepted Answer

A) Oil 
B) Gas 
C) Tidal energy 
D) Minerals

Question 5

Successful pharmaceutical uses for marine organisms include all of the following except:

Accepted Answer

A) Red seaweed extract used as laxative. 
B) Sponge extract used as anti-inflammatory. 
C) Squaline from sharks used to treat cancer. 
D) Bryostating from bryozoans used to treat cancer. 
E) Horseshoe crab blood used to test vaccines from contamination.

Question 6

Fisheries management involves all of the following except:

Accepted Answer

A) Determining the optimal catch of a fish population. 
B) Determining the commercial value of each catch. 
C) Limiting the size and sex of the fish caught. 
D) Restricting the number of fishing boats. 
E) Determining the fishing gear that can be used.

Question 7

Desalination plants:

Accepted Answer

A) Extract minerals for industrial use from seawater. 
B) Convert seawater into fresh water. 
C) Extract table salt from seawater. 
D) Convert seawater into brackish water for industrial uses. 
E) Extract oil from seawater.

Question 8

Most marine food resources are harvested from:

Accepted Answer

A) Coral reefs. 
B) The continental shelf. 
C) Open waters off the continental shelf. 
D) Estuaries. 
E) Mariculture ponds.

Question 9

The richest fishing areas of the world are mostly located in waters:

Accepted Answer

A) Where coral reefs are common. 
B) Where equatorial upwelling takes place. 
C) In open waters far from coasts. 
D) Where coastal upwelling takes place. 
E) Around Antarctica and in the Arctic.

Question 10

Seeding in mariculture refers to:

Accepted Answer

A) Feeding fry with food raised in land farms. 
B) Enriching natural populations by releasing fish that have been farmed for a short time. 
C) Removing diseased fishes. 
D) The culture of shellfish on racks or baskets. 
E) The farming of fish in open mariculture.

Question 11

The exclusive economic zone (EEZ)of a nation is defined as being equal to how many nautical miles:

Accepted Answer

A) 10. 
B) 20. 
C) 100. 
D) 200. 
E) 1,000.

Question 12

The farming of salmon includes all the following problems except:

Accepted Answer

A) Higher levels of contaminants in farmed fish tissue. 
B) Pollution released into environment. 
C) Making salmon more expensive. 
D) Threatens genetic identity of wild salmon. 
E) Increased parasites in the fish.

Question 13

The massive decline of a particular fishery in New England waters caused the unemployment of numerous fishers and related workers in the United States and Canada in the 1980's.To date,this fishery has not recovered.Which fishery is this?

Accepted Answer

A) Salmon 
B) Clupeids 
C) Sea bass 
D) Cod 
E) Sharks

Question 14

Cods and related fishes are demersal.As a result,they are most likely to be caught commercially using which method?

Accepted Answer

A) Gill nets. 
B) Purse sein. 
C) Trawls. 
D) Long line. 
E) Hand line.

Question 15

Which of these areas would have the greatest amount of fish harvested annually?

Accepted Answer

A) Northwest Pacific. 
B) Waters around Antarctica. 
C) West Indian Ocean. 
D) Southwest Atlantic. 
E) Mediterranean.

Question 16

Clupeoid fishes are least likely to be consumed in what way?

Accepted Answer

A) In pet food. 
B) Fish flour. 
C) Fish meal 
D) In products such as margarine. 
E) Direct consumption.

Question 17

By definition,pelagic catches are those that are harvested from:

Accepted Answer

A) The open water. 
B) The bottom. 
C) Estuaries. 
D) Waters where primary production is increased by upwelling. 
E) The continental shelf.

Exam 17: Resources From the Sea