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Tujuan Daerah Aliran Sungai

Sasaran dan tujuan tersebut harus dikaitkan dengan karakteristik DAS seperti kondisi sosial, budaya, ekonomi, fisik, dan biologi yang akan dikelola. Namun demikian sasaran yang akan dicapai pada umumnya adalah untuk meningkatkan atau memperbaiki keadaan DAS sehingga tingkat produktivitas di tempat tersebut tetap tinggi dan pada saat bersamaan, dampak negatif yang ditimbulkan oleh kegiatan pengelolaan tataguna lahan tersebut di daerah hilir ...

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Bacteria Attack On Fish Farming

A. Pasteurella piscicida Pasteurella piscicida is a short rod-shaped bacteria, measuring 0.6-1.2 x 0.8 to 2.6 μm, are gram-negative, do not move, do not make the capsule or spore and are facultative anaerobes. These bacteria can live in seawater environment with a temperature range for growth is 10-39 ° C. Generally isolated from fish can grow well at 25 o ...

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Shrimp Virus Diseases

A. HPV virus disease (Hepatopancreatic parvovirus) and MBV (Monodon Baculovirus) In the year 1988-1990 is a disease highly lethal to tiger prawn shrimp that can cause slow growth. Organs are attacked is hepatopancreas. On a serious attack, hepatopancreas will look pale, shrunken and compact. B. Viral disease YHD (Yellow Head Disease) Symptoms of this disease include: a) The head is ...

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Pengelompokan Organisme Tanah

1. Berdasarkan ukuran Berdasarkan ukurannya, maka organisme tanah atau jasad hayati tanah ini dikelompokkan menjadi tiga kelompok, yaitu (1) Makrobia tanah, jika berukuran di atas 10 mm, (2) Mesobia, jika berukuran 0,2- 10 mm, dan (3) Mikrobia, jika berukuran < 0,2 mm (200 mm). 2. Berdasarkan Cara Memperoleh Energi Berdasarkan cara memperoleh energi, mikroorganisme tanah dibedakan menjadi dua kelompok, yaitu ...

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Crustaceans Disease Due Lernae sp

Ticks needle, or lice anchor a large fish parasite that often infects the fish. Fleas are generally more common in fish reared in ponds than in the aquarium. Known for his performances as fleas needle tends to resemble a needle stuck in the body of the fish attacked. While referred to as anchor ticks, because this animal stuck his head ...

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As Habitat Soil Microorganisms

Soil as a habitat for microorganisms to function as a natural medium for growth and doing all the activities physiology. Soil provides nutrients, water and carbon source necessary for the growth and activity of microorganisms. In this respect, the soil environment as abiotic factors (which include physical and chemical properties of the soil) and biotic (presence of other microbes and ...

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