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Aquaculture

Aquaculture is the practice of growing aquatic organisms - fish, crustaceans, mollusks, and aquatic plants โ€“ under controlled conditions. When growing fish is combined with growing plants, it is called aquaponics or Integrated multi-tropic aquaculture.

464 Questions

What are the disadvantages of aquaculture?

It depends on what form of aquaculture. species such as salmon and those that are carnivorous and actually require feed derived from wild fish. The amount of captured fish to raise farmed fish is massive (something like a ratio of 4:1) this then is a huge issue for the sustainability of wild fish stocks.

Beyond this many of the farms can be environmentally degrading affecting local fish with disease, escapment etc. additionally the seabed can become a wasteland. It should be noted that the extent of effects are limited by the location and size of farms.

What is the difference between capture fishing mariculture and aquaculture?

1.Aquaculture is related to freshwater, mariculture is identified with seawater.

2. Aquaculture is the branch involving the whole spectrum of fish products. But Mariculture pertains to a branch of aquaculture.

3. Aquaculture is farming of salt water and freshwater organisms like finfish, crustaceans molluscs and aquatic plants. Mariculture, on the other hand is a specialized wing of aquaculture that is undertaken in marine environments.

What might happen if genetically modified fish were introduced into an aquaculture facility?

If the GM fish were stronger, healthier, or grew faster, they might cannibalize the others. If the facility maintained a non-GM breeding stock, that should be end of it once the GM fish were removed. But it depends on what sort of new gene(s) were inserted.

What is extensive aquaculture?

extensive aquaculture is low production, low cost aquaculture. An example of this would be if you had a pond for raising Tilapia in Africa, and were only raising them to feed the community you were in.

What is aquaculture?

Aquaculture-The practice of raising a fish and other water organisms for food.

What is meant by the term aquaculture?

Cultivation of water animals, such as eels and fish

Is pelagic fish suitable for aquaculture?

I believe there are some fish farmers (marketers?) who have Tuna caught live and then keep and feed them in very large enclosures in the ocean prior to selling them in the Japanese live fish market. So it must be possible to keep some Pelagics this way but by their very nature Pelagic fish would not be a natural choice for fish farming.

The problem with Pelagic fish being suitable for aquaculture is what they eat. They require high levels of protein for growth. Also, they have very specific amino acid requirements that are usually only met by fish meal. The amount of fish meal (and its cost) needed to feed them until they are market size makes most pelagic fish not a good choice.

When was the first attempt at aquaculture?

Aquaculture or fish farming started with the Chinese around 2,500 BC. It is thought that after a flood carp were trapped in lakes and that the Chinese started to feed and breed these carp as a source of food. This lead to the genetic mutation of goldfish.

The Romans also used lakes as fish farms, and this practise was also used in the Middle Ages to supply monasteries and manor houses with a regular supply of fresh fish.

So, in answer to your question, the first attempts at Aquaculture happened some 4,500 years ago, and has grown through experience to the massive business it is today.

What is aquaculture all about?

i believe that aquaculture is about water and marine life i think this because of the name aquaculture and aqua is water.

What is an aquaculture creature?

its a organism that is kept in a man made environment. Organisms such a redclaw crayfish, oysters and barramundi.

Who is the father of aquaculture?

Fan Lee also spelled Fan Lai or Fan L

i

What are the advantages and disadvantages of aquaculture?

Advantages:

Sustainable Fishing

Higher yields (no Anaerobic Gill Disease) due to freshwater paths

No waste Food due to auto feeder and Infrared Technology

Each Generation Artificially selected to only obtain fish with highest possible yield and disease resistance, increasing yield.

Can be genetically modified to have a 10 fold size increase, and can be made to grow on less nutrients and be more disease resistant.

- Increased growth of fish in hatcheries, due to artificially fertilizing eggs, leading to higher chance of fertilization, as in the wild only 10% of eggs are fertilized.

Disadvantages

- High doses of antibiotics used, leading to bio-accumulation in humans that consume it

- Indoor Hatcheries lead to bio-accumulation of Heavy metals

- Large amount of freshwater used in indoor hatcheries, which means with out an on-site recyclers process is very expensive

- unknown consequences of genetic engineering

- Outdoor Hatcheries leads to competition between wild fish and farmed fish (even though still in nets, food, oxygen and space is still being consumed)

- Environmental impact of large wastes concentrated in one area

- Easy for disease to spread due to low spatial equality, leading easy transmission from host to host.

- Small spaces leads to fin and tails being damaged due to rubber with nets or walls of hatcheries.

What are some advantages and disadvantages of aquaculture?

Advantages are:

Sustainability, Consistency, Demand, Economy, Environment.

What is cage aquaculture?

placing a huge cage in open sea and let the fish grow inside the cage naturally

What is the difference between fry and fingerlings in Aquaculture?

Fry are fish just after they are hatched. They are very small and often actually look like dirt in the water. Fingerlings vary in size, but generally are older. Fry are stocked in the early spring as soon as the eggs hatch, fingerlings are stocked in the summer and fall after their chances of survival are greater. Walleye fingerlings are generally finger-sized if stocked in the early summer but may be 5-8 inches if stocked in the fall. Muskie fingerlings can be a foot long when stocked in the fall. Sometimes they wait until the fish actually switch from eating plankton to minnows before they stock them and then their chance of survival is much greater although it is a lot more costly and many hatcheries do not have the facitilites to keep them for an entire season.

Why aquaculture is not developed?

Farming, civilization, and human zoo's ;)