13C

Question 1

Orientation Clicks

Answer 1

low frequency clicks used in echolocation that give an animal a general idea of its surroundings

Question 2

Discrimination Clicks

Answer 2

high frequency clicks used in echolocation that give an animal a precise picture of a particular object

Question 3

Signature Whistles

Answer 3

unique sound produced by a dolphin to identify an individual

Question 4

Melon

Answer 4

oval mass of fatty waxy material in a dolphins head that functions tin directing and focusing the sounds used in echolocation

Question 5

Renewable Resources

Answer 5

resources that can replenish themselves

Question 6

Stocks

Answer 6

separate population of fish that is assumed to be reproductively isolated from others in range

Question 7

Tagging

Answer 7

prosecute for monitoring the distribution and movement of animals in the environment

Question 8

Landings

Answer 8

catch made by fishing vessels

Question 9

Fishing Effort

Answer 9

measure of the number of vessels fishing, number of fishers working, number of hours spent fishing

Question 10

Overfishing

Answer 10

catching fish faster than they can reproduce and replace themselves

Question 11

Trawl Nets

Answer 11

large nets that are dragged along the sea bottom

Question 12

EEZ

Answer 12

the area of corn that a coastal nation controls

Question 13

Surimi

Answer 13

fishery product made from alaskan pollock

Question 14

Destructive Fishing

Answer 14

best choices, good alternatives, avoid

Question 15

Incidental catch(byctach)

Answer 15

non commercial animals that are killed during fishing for commercial fishing

Question 16

trash fish

Answer 16

term used for incidental fishing ?

Question 17

drift nets

Answer 17

large nets that may stretch for as much as 60 kilometers

Question 18

tans

Answer 18

individual sections of a drift net

Question 19

Aquaculture

Answer 19

The use of aqua culture techniques to breed and raise marine organisms

Question 20

Monoculture

Answer 20

The process of raising a single species in aqua culture

Question 21

Polyculture

Answer 21

The process of raising several species together in aqua culture

Question 22

raft culture

Answer 22

A form of aqua culture, in which juveniles of commercially valuable molluscs are attached to robes expended from rafts

Question 23

Eco-friendly aqua culture

Answer 23

A type of aqua culture where the growing of fish or shellfish, do not have negative impacts on the environment; some positves are
1. Using waste to produce food for animals.
2. using waste as a fertilizer for plants
3. Using animals to minimize waste back to sea.

Question 24

problems with aquaculture

Answer 24

1. Pollution.
2. Wild fish caught to feed cultured fish.
3. Invasive species.

Question 25

Tuna

Answer 25

1. longlined- yellowfin, bigeye, albacore
2. hand lined- bluefin, albacore
3. purse seined- yellowfin, bluefin

Question 26

purse seines

Answer 26

huge nets that can be closed by pulling in a line, similar to the way a purse or a bag of marble is closed

Question 27

Marine mammal protection act

Answer 27

1972 to reduce e the number of marine mammals including dolphins killed in fisheries

Question 28

backing down

Answer 28

technique in which the skiff setting the purse seine backs up, causing the edge of the net to drop beneath the surface of the water allowing dolphins to escape

Question 29

ocean ranching

Answer 29

process in which young fish are raised in one’s and then returned to the sea to supplement natural populations

Question 30

desalination

Answer 30

process of removing salt from seawater

Question 31

sulfides

Answer 31

minerals containing sulfur

Question 32

same and gravel

Answer 32

extract them for:
-cement
-concrete
-replenishing natural beaches
-creating artificial beaches

Question 33

fossil fuels

Answer 33

fuels formed from the remains of organisms that lived millions of years ago

Question 34

meghan hydrate

Answer 34

ice that holds methane gas