Earthen Pond Management
Earthen Pond Management is a perquisite for success in fish farming business. As a matter of facts, this is a free guide on earthen pond management. Do you have an earthen pond? Learn free tip to post your knowledge on Earthen pond management. Nevertheless, Mobile ponds now has taken over earthen ponds. Earthen ponds are more stressful to compare to mobile pond. To this effect, there is a paramount shift from earthen pond to mobile ponds. Furthermore, we have tarpaulin mobile ponds for sale at an affordable prices for Nigerians. Just contact us now for prices.
Tips on Earthen Pond Management
There are several tips to manage your earthen pond for maximum profiting. Similarly, manage ponds from external predators and fish parasite are major was for maximum fish growth. Below are some tips to boost your fish farming business.
Firstly, some ponds benefit from the occasional addition of lime. Likewise, Ponds with very soft, acidic water (less than 20 parts per million total alkalinity) will not be very productive. Similarly, Liming your pond enhances pond fertilization. Ponds with acidic waters (water having a low pH value) are common in many areas of North Carolina. Fishing will be poor if the pH is below 6.0. A pH value between 6.5 and 9.0 is perfect for fish ponds.
Furthermore, water pH and alkalinity measurement with inexpensive water testing kits available from most swimming pool supply stores, is a means to cut cost. Or, you can send a water sample to the North Carolina Department of Agriculture Water Testing Laboratory (919-733-2657) for analysis, for a small fee.
However, a soil test from the NCDA Soil Testing Laboratory is the best way to determine how much lime your pond needs. For existing ponds, collect soil from 8 to10 areas throughout the pond from a boat using a can on the end of a pole. Mix the sample thoroughly, and allow it to dry. Then place the sample in a shipping box available from your county Cooperative Extension Center, label it as a pond sample, and mail it. The soil analysis you receive will indicate how much lime your pond needs. As a general rule, about one ton of agricultural lime per acre is required to raise the pH one point.
Furthermore, distributed lime evenly over entire pond. A common method for applying lime is to shovel it or wash it from a plywood platform while moving around the pond in a boat. Late fall or early winter is the best time to apply lime. Likewise, a typical pond requires retreatment with lime every 3 to 4 years, although ponds with high rates of inflow and outflow require more frequent applications.
New ponds are easiest to lime while they are still empty. Before the pond is filled collect soil samples for analysis following the procedure described above. Lime, if required, can be spread over the bottom of the pond and disked in before the land is flooded.
Calcium Hydroxide Not Recommended
Don’t use Hydrated or builder’s lime (calcium hydroxide) because, it is caustic and has the potential to increase pH too quickly. This can result to high mortality in fish. Oftentimes, if fish are not present or if agricultural lime is not readily available, applied hydrated lime carefully at the rate of 50 pounds per surface acre. Similarly, if you use hydrated lime, retreat ever few months.
Furthermore, FIG8_aquatic_food_chain As with land and crops, the fertility of the water determines the productivity of a pond. A typical pond supports 100 to 150 pounds of fish per acre. Fertilization can double or triple this production by stimulating the growth of microscopic plants (phytoplankton) and animals (zooplankton), which comprise the base of the food chain (Figure 8). These organisms are fed upon by insects and small fish, which provide forage for larger game fish.
Similarly, Pond fertilization can, however, have negative side effects. Excessive fertilization can create noxious algal blooms. In addition, the decomposition of dead algae during summer months can cause low oxygen levels, which may cause fish kills during extended periods of cloudy weather.
Fertilization is an advanced pond management option that definitely is not recommended for everyone. Ponds that are naturally fertile, have high flow rates. Furthermore, don’t fertilize heavy fishing pressure. Similarly, Fertilization can increase productivity, but it takes time and money. Furthermore, most be done rightly.
Is Fertilization Beneficial?
As a general guide, you can determine whether fertilization may be beneficial by the water clarity. If a light-colored or shiny object, such as your hand or a small (6-inch) pie tin or lid can be seen clearly 18 inches under water, fertilizing is an option.
Guide To Fertilization
Before beginning a fertilization program, measure the pH and hardness of the water, or have the pond mud analyzed, as described above. Ponds with alkalinity below 20 parts per million usually don’t respond to fertilization, and need to be limed first. Apply lime at least 2 weeks (preferably several months) before fertilization. For many ponds, liming as necessary may support adequate pond productivity without fertilization.
How Over Do I Fertilize My Pond?
Once begun, continuously fertilize your pond yearly. Discontinuing fertilization will affect fish populations by reducing the food supply and will encourage the growth of filamentous algae and other undesirable aquatic vegetation. It is better not to fertilize at all than to do so in a random manner. Do not fertilize ponds that have extensive shallow areas. Do not apply fertilizer to ponds with weeds already present, as the fertilizer will promote weed growth and compound the problem.
When should i fertilize?
Begin fertilization in spring when water temperatures reach 60°F. Because ponds differ greatly, the number of applications of fertilizer needed per year cannot be predicted. Usually two to three applications, spaced two weeks apart, are required for a plankton bloom (greenish color) to develop. After the initial application, apply additional fertilizer whenever water clarity exceeds 18 inches to maintain a bloom until late summer or fall.
Fertilization may not be effective in ponds with high flow rates, muddy water, or stained water. If a bloom does not develop after the third application, consult a biologist.
What kinds of fertilizers are available?
Several types of liquid, soluble powder, and granular pond fertilizers are available. Most agricultural fertilizers do not have the best combination of nutrients for ponds. They include components that are unnecessary and may stimulate an undesirable type of algae. Use the following types of fertilizers and application them with this rates:
Type Application Rate
water soluble powder (10-52-4, 12-49-6) 4 pounds per acre
liquid (10-34-0) 1 gallon per acre
granular (20-20-5) 40 pounds per surface acre
Generally, water soluble powder and liquid fertilizers are the easiest to apply and most economical. Soluble powder fertilizer requires the least labor because it goes into solution immediately and can be applied directly to the pond without mixing with water first. Because liquid fertilizer is heavier than water, it should always be mixed with water (one part of fertilizer to five parts of water) before application.
It is best to siphon or pour diluted liquid fertilizer from a container while moving over the pond in a boat. If this method cannot be used, the diluted fertilizer can be sprayed or splashed around the edge of the pond, although this sometimes encourages the growth of undesirable algae and weeds. Do not use liquid fertilizers having a petroleum base.
FIG9_2Granular fertilizer should be spread on a platform 12 to 18 inches below the surface (Figure 9) so that it will be dissolved and dispersed by water currents. Similarly, the platform should be located 10 to 15 feet from the bank. In watershed ponds it should be placed in the upper two-thirds of the pond, away from the drainpipe. For ponds of 3 acres or less, a platform with 9 square feet of surface area is adequate, whereas ponds of more than 3 acres require 3 1/2 square feet per acre. Ponds up to 10 acres are fertilized with one platform.
Mix Granular fertilizer with water and spread around the pond from the bank or by boat into water 5 feet deep or less. However, this type of fertilizer is most effective when it is not applied directly to the pond bottom. This is because chemicals in pond mud can bind the nutrients, and fertilizer on the pond bottom can encourage weed growth.
Supplemental feeding can be used to increase the growth of fish and harvesting rates of ponds. Feeding is not necessary for most ponds, as an adequate quantity of natural food organisms (insects, worms, and crustaceans) are present to support fish populations. In small, infertile ponds, supplemental feeding may be preferable to fertilization for increasing productivity. Feeding is not recommended for fertilized ponds.
Bluegills and channel catfish will readily take feed, whereas bass usually do not. However, some commercial hatcheries sell “trained” bass cultured to consume artificial feed.
Feed only between spring and fall when the water temperature exceeds 65°F. Stop feeding if the water temperature is greater than 90oF, as fish will generally not feed at higher temperatures. It is best to place the feed in the pond daily at several locations. Feed only the amount that the fish consume in about 10 to 15 minutes and no more than 10 pounds per acre per day. Excessive feeding can cause fish kills because the decomposition of uneaten feed depletes the oxygen supply. Discontinue feeding if the fish stop accepting the feed. Automatic and demand feeders are commercially available.
Be sure to continue a feeding program once you have started it. If feeding is discontinued while the fish are still accepting feed, there are more fish than the natural food supply can support, resulting in stunted fish of poor quality. Occasional feeding will do little to increase fish growth.
Several commercial feed preparations are available in either floating or sinking varieties. Although more expensive, floating feed makes it possible to observe the extent and duration of feeding. Floating feed are placed in floating plastic rings that prevent the pellets from washing ashore. Don’t use Moldy feed, because, some contain fish toxic
Various devices are used in ponds to concentrate fish and improve fishing. Best results are obtained in ponds that are devoid of natural cover such as stumps, tree tops, and aquatic vegetation. The devices should be located within casting distance of the shoreline or piers. Floats are used to mark the location of the devices.
Furthermore, Use any available woody material to make a brush pile. Again, the more vertical the pile, the better. Cedar and discarded Christmas trees can be set into cement blocks, secured with polypropylene rope, and set upright on the pond bottom. Several trees located together work better than single trees. Similarly, replaced Brush piles every few years.
Furthermore, drive any type of wooden stakes into the pond bottom or nailed to a weighted frame and sunk. Place stakes 6 to 8 inches apart. Likewise, cover bed area with about 200 square feet. The stakes should extend from the shoreline into water that is from 6 to 8 feet deep. The tops of the stakes should extend out of the water so they can be located easily. Pieces of plastic pipe are used in place of stakes.
Tires are used to construct a satisfactory permanent structure. Likewise, prepare it properly. First slit them to allow them to sink and prevent them from floating around the pond. Then tie them together with polypropylene rope to keep them in position. Adding one or two cement blocks to the bundle will help stabilize it. The higher the structure is above the bottom of the pond, the more cover it will afford. Oftentimes, Pyramid-shaped bundles are used. Tires tossed in a pond at random will either wash ashore or silt in and provide no fishery benefits. Furthermore, cover tires with brush to further increase their attractiveness to fish.
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