1 / 13

Carp Culture

Carp Culture. Dr. Craig Kasper. Introduction. Possibly the oldest form of aquaculture in the known world. Currently the largest (2/3 of ALL fish production is carp) Three key species: Grass Carp Silver Carp Bighead carp. Introduction. Why carp? Eat low on the food chain.

usoa
Download Presentation

Carp Culture

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Carp Culture Dr. Craig Kasper

  2. Introduction • Possibly the oldest form of aquaculture in the known world. • Currently the largest (2/3 of ALL fish production is carp) • Three key species: • Grass Carp • Silver Carp • Bighead carp

  3. Introduction • Why carp? • Eat low on the food chain. • Tolerate poor water quality • Adapt to both alkaline and acidic water!

  4. Broodfish • Broodfish should be selected at 2-4 years of age. • Grown in ponds up to 1 to 10 acres (0.4 to 4 ha). • Stock males and females at 1:1 or 2:3 • Preferred Temperature 77°F. • Hormone injection (hCG) can be used to induce ovulation. • Expect ~250,00 eggs/quart of liquid during incubation.

  5. Culture Methods • Overall carp culture is similar to other warm water fish culture. • Fry will go through a “green water” stage • Densities of >500,000 fry/a (1.25 million/ha) are possible!

  6. Feeding • Grass carp: can be reared on plants alone, but also perform well on pellets. • Bighead are eat detritus and zooplankton in the wild, but also take to pellets! • Silver carp are primarily planktonivores.

  7. Yield? • Carp ponds often yield 2000-5000 lbs./acre • Often sold live or whole on ice.

  8. ?

  9. More on carp... • Grass carp are a member of the Order Cypriniformes and Family Cyprinidae. Cyprinidae is the largest family of freshwater fish species and includes all the minnows and carps. • Grass carp: Native to Asian rivers, but stocked widely across the US. • Occasionally, carp will be named after the Amur River (“white amur, river amur, amur fish, etc. as a marketing tool.)

  10. Diploid vs. Triploid? • Normal grass carp have 48 chromosomes (diploid or 2N chromosome number.) • Sterile grass carp are heat or cold or pressure. • The resulting fish are triploids (3N) because each cell has an extra set of chromosomes. • Triploids are infertile.

  11. Eggs/Fertilization/Hatching • Grass carp spawn naturally only in rivers with high water flows and appropriate temperature. • Pond spawning does not take place.

  12. Feeding/Growth • Grass carp consume vegetation intermittently at temperatures as low as 37 oF (3 oC). • They eat steadily at 50 to 60 oF (10 to16 oC), with optimal consumption at temperatures between 70 and 86 oF (21 and 30 oC).

More Related