PRINCIPLES OF POND FISH CULTURE 1. Fish are dependent for food directly or indirectly on plants. 2. The weight of fish which can be produced in natural waters is dependent upon the ability of the water to raise the plants. We could increase production by adding plant organic matter produced elsewhere. 3. The ability of water to produce plants is dependent upon sunshine, temperature, CO2, Mineral from soil or rocks, nitrogen (NO3- and NH4-) , O2 and water. 4. The Natural fertility of the water is dependent on the fertility of the soil in pond bottom and watershed. 5. Fertlity of water can be increased by adding inorganic fertilizers. 6. After adding all essential minerals and all available nitrogen, the next limiting factor is CO2. This compound can be increased by adding organic matter followed by liming (Ca, Mg). 7. The next limiting factor in fish production, after mineral and CO2 are provided, is oxygen demand of all living and dead organisms in the water. This can be supplied by ru...
Lobster Freshwater. Differ from prawn pole, lobster can be marketed [by] goodness as prawn consume and also as aquarium decoration. That is why prospect of lobster much more [is] open compared to other prawn commodity. This Lobster in a short time become primadona because amendable [in] basin bargain. Recognition of Type. Lobster [is] generally arrested from coast. Coastal fisherman Baron [is], Yogyakarta with dinghy swim and catch lobster among rocks, [is] later;then sold [by] [in] coast or sent to buyer. Nowadays, freshwater lobster can be developed [by] [in] lawn pool, [is] same as other bream commodity. Freshwater Lobster ( Cherax Sp .) [is] one of [the] pertained gender [is] crustacea ( prawn nation ) which entire/all cycling its life happened [in] freshwater. its big Body size measure naturally. Its body consist of two shares, that is head ( body and cephalotorax) ( abdomen). There [is] part of [among/between] him that is subcephalotorax. Entire/All its body [is] blanketed with c...
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