Fish Husbandry

Question 1

this percent of protein in the human diet comes from the sea

Answer 1

17%

Question 2

this provides half the seafood of the world and is the fastest growing food production sector

Answer 2

aquaculture

Question 3

30% of the fish eaten in the UK is this

Answer 3

farmed salmon

Question 4

this term includes a range of animals, principally molluscs and crustaceans but also cephalopods, which are important food species and many of which are farmed

Answer 4

shellfish

Question 5

4 types of muscles that teleosts (ray-finned fish) have

Answer 5

cardiac, smooth, white, red

Question 6

where does haematopoiesis occur in fish

Answer 6

kidney and spleen

Question 7

what two important roles do the gills of fish play

Answer 7

respiration and osmoregulation

Question 8

three types of teeth present in fish

Answer 8

jaw, mouth, and pharyngeal

Question 9

the vast majority of global aquaculture production by volume still occurs in these systems

Answer 9

pond systems

Question 10

this system of aquaculture farming treats used water and reintroduces it to the tanks, greatly reducing the need for fresh water supplies

Answer 10

Recirculating Aquaculture System (RAS)

Question 11

these are the most valuable global aquaculture product

Answer 11

shrimp or prawns

Question 12

this is the name for salmon just after the fertilised egg has hatched and a yolk sac is attached

Answer 12

alevin

Question 13

alevin then grow into this in tanks or pens in freshwater lochs

Answer 13

parr

Question 14

the parr then become smolts when they are around this weight and are then transferred to sea for on-growing

Answer 14

40 g

Question 15

what is the harvest site of salmon

Answer 15

4-6 kg

Question 16

the slaughter process and associated activities of salmon/other fish is referred to as this

Answer 16

Harvest