1. Based on the size Based on its size, the soil organisms or biological soil bodies were categorized into three groups, namely (1) Makrobia land, if the size above 10 mm, (2) Mesobia, if the size of 0,2- 10 mm, and (3) Microbes, if the size of <0.2 mm (200 mm). 2. Based on How to Acquire Energy Based on ...
Read More »Plankton Parameters In Water Quality
a) The abundance of plankton Parameter abundance of plankton in a body of water can reflect the level of fertility of a body of water. High abundance of plankton that can also show their dominance in the food chain. it can be used as indicators of a body of water. Ways of working : (1) Take the plankton samples that ...
Read More »Serangan Bakteri Pada Budidaya Ikan
A. Pasteurella piscicida Pasteurella piscicida adalah bakteri yang berbentuk batang pendek, berukuran 0,6-1,2 x 0,8-2,6 μm, bersifat gram negatif, tidak bergerak, tidak membuat kapsul maupun spora dan bersifat fakultatif anaerob. Bakteri ini dapat hidup di lingkungan air laut dengan kisaran suhu untuk pertumbuhannya 10-39oc. Umumnya yang diisolasi dari ikan dapat tumbuh baik pada suhu 25oC. Pasteurella piscicida dilaporkan menyerang ikan-ikan ...
Read More »Water Hardness Level
Effect of calcium carbonate (CaCO3) in water can also be expressed as the hardness of the ability of water to form foam when mixed with detergent (soap). On the water has a low hardness will easily form foam when mixed with soap. While on the water that has high hardness would not form foam. Hardness is very important for the ...
Read More »Pengelolaan Lingkungan Budidaya
Keberhasilan pengelolaan kesehatan ikan sangat tergantung pada faktor lokasi, kawasan bebas, sistem budidaya dan monitoring kesehatan ikan. Penyakit yang disebabkan oleh virus, penggunaan bahan kimia atau antibiotik tidak disarankan. Beberapa tindakan yang harus segera dilakukan adalah : 1) Mencegah penyebaran virus melalui media pembawa terutama ikan sakit dan sarana transportasinya. 2) Membatasi lalu lintas orang dari dan ke lokasi wabah ...
Read More »Soil Structure Formation
There are two stages that occur in the formation of soil structure, namely (1) clotting (coagulation) of colloidal soil as a result of the influence of Ca2 + ions into the soil micro-aggregates, and (2) cementation (binder) micro aggregate into the aggregate macro. Meurut soil structure formation theory, based on the flocculation occurs on land that is in solution, for ...
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