Danau Towuti

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Danau Towuti
COLLECTIE TROPICAL MUSEUM pad lang drijfvlak Larona Celebes TMnr 10007791.jpg
Towutisee around 1930
Geographical location Sulawesi Selatan , Sulawesi
Drain via Sungai Larona into the Gulf of Bone
Places on the shore Laronda
Data
Coordinates 2 ° 45 ′  S , 121 ° 30 ′  E Coordinates: 2 ° 45 ′  S , 121 ° 30 ′  E
Danau Towuti (Sulawesi)
Danau Towuti
Altitude above sea level 293  m
surface 561.1 km²
Maximum depth 203 m
Template: Infobox Lake / Maintenance / EVIDENCE AREA Template: Infobox Lake / Maintenance / EVIDENCE MAX DEPTH

The Danau Towuti or Towutissee is a 561.1 km² large lake in the administrative district ( Kabupaten ) Luwu Timur in the province of South Sulawesi , Indonesia . Towutissee is the largest lake in Sulawesi and the second largest in Indonesia after Danau Toba . It belongs to the Malili lake system and is a rift lake in a cryptodepression of tectonic origin. The age of the lake is estimated to be one to four million years. The lake's water is extremely poor in nutrients ( ultra-oligotrophic ).

fauna

The lake houses 14 endemic freshwater fish species (from the family of telmatherinidae (Telmatherinidae) and of the genera Glossogobius , Mugilogobius , Nomorhamphus and ricefishes ( Oryzias )), freshwater prawns in the genus Caridina , freshwater crabs of the family Parathelphusidae (genera Nautilothelphusa , Parathelphusa and Syntripsa ) and snails of the genus Tylomelania . Some other fish species have been introduced into the lake by humans, including Anabas testudineus , a gill-slit eel ( Ophisternon cf. bengalense ) and Trichopodus trichopterus . Also the armor catfish Pterygoplichthys pardalis from South America, the cichlid Melanochromis cyaneorhabdos , which originally comes from the East African Lake Malawi , and a predatory catfish species ( Clarias cf. batrachus ). Particularly problematic for the endemic fish is the introduction of the Flowerhorn Cichlid, a cichlid hybrid bred in Malaysia from various Amphilophus , “ Cichlasoma ” and Paraneetroplus species, which reproduces strongly and also feeds on fish as a predatory species. There are also saltwater crocodiles ( Crocodylus porosus ) and Ambon sailing lizards ( Hydrosaurus amboinensis ).

Individual evidence

  1. ↑ by Rintelen, K., and Y. Cai (2009). Radiation of endemic species flocks in ancient lakes: systematic revision of the freshwater shrimp Caridina H. Milne Edwards, 1837 (Crustacea: Decapoda: Atyidae) from the ancient lakes of Sulawesi, Indonesia, with the description of eight new species. Raffles Bulletin of Zoology 57: 343-452.
  2. ↑ von Rintelen, T., K. von Rintelen, M. Glaubrecht, CD Schubart, and F. Herder (2012). Aquatic biodiversity hotspots in Wallacea: the species flocks in the ancient lakes of Sulawesi, Indonesia. pp. 290-315 in: Gower, DJ, KG Johnson, JE Richardson, BR Rosen, L. Rüber, and ST Williams, ST, eds (2012). Biotic evolution and environmental change in southeast Asia, Cambridge University Press, Cambridge. ISBN 978-1-107-00130-5
  3. ↑ Fabian Herder, UK Schliewen, MF Geiger, RK Hadiaty, SM Gray, JS McKinnon, RP Walter & J. Pfaender (2012): Alien invasion in Wallace's Dreamponds: records of the hybridogenic “flowerhorn” cichlid in Lake Matano, with an annotated checklist of fish species introduced to the Malili Lakes system in Sulawesi. Aquatic Invasions 7 (4): 521-535

Web links

Commons : Danau Towuti  - collection of images, videos and audio files