Skip to main content

Opak River

Opak River or Kali Opak is a river along approximately 65 kilometers across Sleman Regency and Bantul Regency, Yogyakarta Province, Indonesia. The upper river is on Mount Merapi in Sleman and flows south to the Indian Ocean on Samas Beach in Bantul.

The Opak River crossed the western side of Prambanan Temple and was once the natural boundary of the Kingdom of Yogyakarta with the Kingdom of Surakarta. The average monthly discharge of water is around 12.35 meters per second with a maximum of 83.2 cubic meters per second and a minimum of 1.89 cubic meters per second.

Dlium Opak River

The major rivers that supply water to the Opak River are Gendol River, Tepus River, Kuning River, Code River, Gajahwong River, Belik River, Tambakbayan River, Nongko River, Oyo River and Winongo River.

This river flows in the southern region of Java in the tropical monsoon climate for the Am code according to the Köppen-Geiger climate classification. The average temperature of a year is around 22 Celsius. The hottest is October at 26 Celsius and the coldest January at 18 Celsius. The average annual rainfall is 2970 mm where January averages 537 mm and September averages 22 mm.

Dlium.com Opak River

Fish

Opak River water is classified as cloudy, but not necessarily polluted because many living and varied living things include the Suckermouth catfish (Hypostomus plecostomus), Wader (Puntius javanicus), Tawes (Barbonymus gonionotus), Javanese catfish or Lele Jawa (Clarias batracus), Snakehead murrel (Channa striata), and Nilem (Osteochillus hasselti).

Walking catfish or Javanese catfish (C. batracus) are threatened with extinction since the introduction of Dumbo Catfish or Lele Dumbo (Clarias gariepinus) which breed faster and more carnivorous. Opak River is one of the favorite places for fishing enthusiasts in fresh water besides Progo River for residents of Yogyakarta.



Mangrove forest

The Opak River Estuary has a mangrove forest in Baros Village, Kretek District, Bantul Regency and is known as the Baros Mangrove Area. Mangroves grow densely and there is a stretch of grass used by farmers for animal feed. This area succeeded in developing mangrove forests which were previously predicted not to grow on land and environments that did not meet the requirements.
Labels:

Comments

Post a Comment

Popular

Guinea grass (Panicum maximum)

Guinea grass or buffalo grass or green panic ( Panicum maximum ) is a plant species in Poaceae, annual grasses, growing upright to form clumps, strong, cultivated in all tropical and subtropical regions for very high value as fodder. P. maximum reproduces in very large pols, fibrous roots penetrate into the soil, upright stems, green, 1-1.5 m tall and have smooth cavities for diameters up to 2.5 mm. Propagation is done vegetatively and generatively. Ribbon-shaped leaves with a pointed tip, very many, built in lines, green, 40-105 cm long, 10-30 mm wide, erect, branched, a white linear bone, often covered with a layer of white wax, rough surface by hair short, dense and spread. The flower grows at the end of a long and upright stalk, open with the main axis length to more than 25 cm and the length of the bunches down to 20 cm. Grains have a size of 3x4 mm and oval. Seeds have a length of 2.25-2.50 mm and each 1 kg contains 1.2 - 1.5 million seeds. Guinea grass has two varieties. P
Post a Comment
Read more

Giant green leech (Raksasa hijau)

Lintah raksasa or giant green leech ( Raksasa hijau ) is a species of animal in Salifidae, large green leeches, carnivores, not hematophagic, can grow to lengths of more than 50 cm, the front is perfectly tubular, but it is getting bigger, wider and flat backward. R. hijau has a front end that ends with a white mouth and has a width equal to the diameter of the front end of the body. The rear end ends with the anus and has a width equal to the diameter of the rear end of the body. The upper surface is whole dark green or leafy green, looks shiny and has no other additional color features. The bottom surface is lighter or brownish green. The skin is wrinkled like tight, elastic joints that make it possible to lengthen the body. Giant green leech moves forward by extending the tip of the front of the body to keep the new location farther away and this movement is then followed by the middle body and gradually the rear where the body moves completely. R. hijau does not suck blo
Post a Comment
Read more

Redflower ragleaf (Crassocephalum crepidioides)

Sintrong or ebolo or thickhead or redflower ragleaf ( Crassocephalum crepidioides ) are plant species in Asteraceae, terma height 25-100 cm, white fibrous roots, generally grow wild on the roadside, yard gardens or abandoned lands at altitude 200- 2500 m. C. crepidioides has erect or horizontal stems along the soil surface, vascular, soft, non-woody, shallow grooves, green, rough surface and short white hair, aromatic fragrance when squeezed. Petiole is spread on stems, tubular and eared. Single leaf, spread out, green, 8-20 cm long, 3-6 cm wide, longitudinal or round inverted eggshell with a narrow base along the stalk. Pointed tip, flat-edged or curved to pinnate, jagged rough and pointed. The top leaves are smaller and often sit. Compound flowers grow throughout the year in humps that are arranged in terminal flat panicles and androgynous. Green cuffs with orange-brown to brick-red tips, cylindrical for 13-16 mm long and 5-6 mm wide. The crown is yellow with a brownish red
1 comment
Read more