SG Aquaculture, Aquaponics & Hydroponics

Question 1

Aquaculture

Answer 1

The breeding, rearing, and harvesting of fish and other type of water organisms

Question 2

Aquaponics

Answer 2

A food production program that combines aquaculture and hydroponics

Question 3

Hydroponics

Answer 3

Growing plants in sand, gravel, or liquid with added nutrients but without nutrients

Question 4

What fish are usually grown?

Answer 4

Tilapia

Sturgeon for caverior

Giant Gourami : breathe air, which makes it easy of our power goes our or even if we have low aeration happening, can function on vegetarian diet

Question 5

Why is that fish easier to grow than others?

Answer 5

They are easy to take care of and they can withstand a lot of different water qualities. Fry can eat the same amount of food as tilapia and is simple to feed.

Question 6

What are fry?

Answer 6

A recently hatched fish

Question 7

Fingerlings

Answer 7

A fingerling is a babyish, the size of a finger

Question 8

fast do fry grow

Answer 8

very fast

Question 9

often do they eat

Answer 9

Very often and don’t let it go to waste. Every 2-3 hours

Question 10

What’s the ideal temperature range for them?

Answer 10

70-85 degrees Farenheit

Question 11

What animal would not work well?

Answer 11

Fish that needs a lot of attention and grows very large

Question 12

What vegetables are usually grown in hydroponics?

Answer 12

Lettuce, onion, kalo, tai, basil, hawaiian herbs and plants, cilantro, green onion

Question 13

Do plants grow faster in aquaponics and hydroponics?

Answer 13

Yes

Question 14

What is an important maintenance task

Answer 14

Weekly water changes, daily checking water quality, everything we do in lab

Question 15

What do they test the water for?

Answer 15

pH levels, ammonia, nitrite, and nitrate

Question 16

pH balance

Answer 16

5.00 to 10.00, how acidic something is

Question 17

ammonia

Answer 17

Anything below 3. 4, a gas that is toxic in high levels

Question 18

ntitrite and nitrate

Answer 18

Nitrite should be below 1 ppm, nitrate anything greater than 80 is toxic, byproducts of organic waste breaking down

Question 19

temp affect system

Answer 19

The higher the temperature, the faster the growth rate because more oxygen is being required

Question 20

Is there a use for dirty water from the fish?

Answer 20

Circulates through the tank

Question 21

Why are nitrifying bacteria important?

Answer 21

They convert ammonia to nitrate

Question 22

How does the nitrogen cycle work in freshwater?

Answer 22

Fish eat the food and produce waste, which is broken down and converted into food again

Question 23

Importance for Hawaii?

Answer 23

Living off of aina, connecting back to ancestral roots and cultural identity. Connects with the dirt ( land). Teaches sustainability, we consume less chemicals. Is a stress reliever for those who maintain it.