Chapter 1 Flashcards
Is a form of agriculture that involves the propagation, cultivation, and marketing of aquatic animals, and plants in controlled environment.
AQUACULTURE
When does the world fish farming first practiced in china?
2000 B. C.
When does the pioneers began to supply brood fish, fingerlings and lessons in fish husbandry to would be Aquacultirists
19th Century
When does commercial fish culture in the United States was mainly restricted to rainbow trout, bait fish, and a few warmwater species, such as the buffaloes, bass, and crappies.
1960’s
When does firmly established catfish industry, which originated in the southeastern United States
1950’s
When does firmly established catfish industry, which originated in the southeastern United States
1950’s
Was characterized by rapid expansion and relatively high production costs that resulted in low yields and inefficiency
1st phase or pioneering phase (1960-1970)
Gave rise to major improvements in production and lower unit costs. In this phase there is a drastic shakeout of unprofitable and marginal producers when feed costs rose as a result of a scarcity of fish meal.
2nd phase (1971-1976)
Saw vastly improved productivity greatly increased acreage, and lower production costs.
3rd phase (1977-1982)
Saw a decreased rate of expansion in the catfish industry, while production of other aquaculture products such as salmon, stripped bass, crawfish, and tilapia increased.
4th phase (1982-1989)
Enumerate the negative impact of wild caught fish
-Environmental Issues
-Destruction of habitat
-Muroami
-By-catch
-Overfishing
-Orange Roughly
-Bottom Trawling
In 2015 of Sea food Production How much does the production of Aquaculture?
106.00 million tons
In 2015 of Sea food Production How much does the production of Capture Fisheries?
93.74 million tons
CLASSIFICATION OF AQUACULTURE
-with low production per unit volume?
EXTENSIVE AQUACULTURE
Production per unit volume is much higher and more technology and artificial inputs must be used to achieve this.
INTENSIVE AQUACULTURE
An example is intensive fry production combined with extensive on growing.
SEMI-INTENSIVE AQUACULTURE
The species being farmed are kept at low density and there is minimal input of artificial substances and human intervention.
EXTENSIVE AQUACULTURE
Investment cost per unit volume farmed will of course also be much higher.
INTENSIVE AQUACULTURE
Maintenance of optimal growth conditions is necessary
INTENSIVE AQUACULTURE
A low level of technology and very low investment per unit volume farmed characterized this method.
EXTENSIVE AQUACULTURE
Enumerate Life stage of the species produced on the farm:
-Eggs
-Fry
-Juvenile or ongrowing
-Full Production
Types of Farming Technology Used:
Closed Production Units
Open Production Units
Sea, Tidal Zone and Land are based on what?
BASED ON THE LOCATION
There are two types under of Land, what are those two?
-Gravity Fed
-Pump
The water source is at a higher altitude than the farm amd the water can flow by gravity from the source to the farm.
GRAVITY FED
The source can be at an equal or lower altitude compared to the farm.
PUMP
Farms can also be classified by how the water supplied to a farm is used. What are those two?
- Flow-Through Farm
- Re-use or Recirculating System
