200L Biotope Aquascape Sandy sedimentary bottom area in Ndole Bay. Zambia. Lake Tanganyika.

美国 AGA 国际造景大赛2018Biotope-Aquascape

200L Biotope Aquascape Sandy sedimentary bottom area in Ndole Bay. Zambia. Lake Tanganyika.

Walter Vázquez · Argentina

Lake Tanganyika is the largest of the three large lakes of the African Rift Valley, with a surface area of 32.600 km², with 673 km of length, 72 km in it´s widest point and with a coastline of 1,828 km. Its the second largest freshwater lake in the world by volume and the second deepest after lake Baikal in Siberia, with 1470m. and an average depth of 570m. The lake is surrounded by four countries; Burundi in the Northeast, Democratic Republic of the Congo in the West, Tanzania in the East and Zambia in the South, forming a surface of 231.000 Km². Nearly one-sixth of the world’s freshwater is located on Lake Tanganyika. The lake is an important freshwater resource for people living in its vicinity. The lake contains at least 250 species of cichlid 鱼类 (Cichlidae) and 150 other species of non-cichlid 鱼类, most of which live on the shore of the lake, at a depth of 180 m. The lake is also an important site of study on the evolution of species. Almost all (90%) of the cichlid species of Tanganyika are endemic to the lake. This high degree of endemic species also occurs with many lake invertebrates, such as molluscs, crabs, copepods, 虾, jellyfish, leeches, etc. This aquarium represents the Ndole Bay area in Zambia, which is adjacent to Nkamba Bay in Nsumbu National Park on Lake Tanganyika. Ndole Bay is part of Cameron Bay. It is located at 8 ° 28’1.14 “S of latitude and 30 ° 28’29.45” E. of longitude. Lake Tanganyika has different habitats: – Shallow, 无 sedimentary and sediment-rich shallow shores. – The 砂 bottom, with little plant life. – The muddy bottom near the rivers in flow. – Pelagic waters, which are open waters rich in phytoplankton and zooplankton that support large banks of non-cichlid 鱼类. – Benthic Waters, zone of depletion of deep oxygen. At a distance of tens of meters, the habitats of Ndole Bay change drastically, and different species evolved to adapt to them. In front of the beach, it’s found an habitat based on large 石材 and 砂 plates. Followed by these large 石材 plates, begins a great plain of 砂. To the east, as the depth increases, the bottom of the lake has a new change, a dense area of 砂 and fine sediment with fields of Neothauma snail shells. In the North of the beach, two small habitats were created, each with its set of species, a coast filled by a dense canefield and rocks of little size. On the south coast there is also a reed, but without rocks with a thick base of mud. 石材 structures resembling a reef run parallel to the beach and are separated by bands of 砂 for only a few meters. It is a shallow area with a good water movement. A large number of 鱼类 inhabit rocky and sandy areas where they find protection, food, and their breeding grounds. Different species have different requirements in terms of territory. Some species find protection among the rocks, and get their food from them like the Tropheus and Eretmodus; Others need 砂 to build their nests like Xenotilapia. Already about 200 meters from the beach is the sector of fine 砂 and sediment covered by a layer of empty shells of snails Neothauma tanganyicense.This sector is represented in my aquarium, trying to resemble the habitat aesthetically and functionally to the cichlid species that inhabit it. The water in Lake Tanganyika is alkaline, with a pH between 8.5 – 9.0 depending on the depth and alkalinity surrounding the 650µS. The water temperature of the lake is very stable, due to the large body of water. The surface temperature of Lake Tanganyika ranges from 23-27°C, and the hypolimnion temperature ranges from 23–24°C, although most 鱼类 inhabit areas with a temperature of 24-27°C. Sources of information: Limnology and hydrology of Lakes Tanganyika and Malawi – Ruud C. M. Crul The Hydrology of Lake Tanganyika By C. GILLMAN – Bulletin 无. 5 of GEOLOGICAL SURVEY DEPARTMENT. To make this aquarium inspire me and visualize many 小时 of uncut video from the LightSearch channel, for example this video: https://www.youtube.com/watch?v=_kPNFcE_gzk&t=17122s Also, to know the area corresponding to Ndole Bay, I had talks with Alfredo Reis Deus, director of the sub aquatic films and the documentary.

作者Walter Vázquez

国家/地区Argentina

赛事年份美国 AGA 国际造景大赛 · 2018

项目组别Biotope-Aquascape

奖项2 / Second Place / aga_archive_award

作品编号#148

风格Biotope-Aquascape

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规格

Biotope-Aquascape

尺寸

100 × 40 × 50 cm

容量

200L

缸体规格

200L; 100 × 40 × 50 cm

背景

The 缸体背景 its a lightblue vinyl designed by me.

The tank background its a lightblue vinyl designed by me.

灯光

The 灯光 of the aquarium is based on 6500K LED tubes, and individual LEDs for the search of sub aquatic color temperature.

The lighting of the aquarium is based on 6500K LED tubes, and individual LEDs for the search of sub aquatic color temperature.

过滤

It is filtered by an Atman 3336 canister with biological and mechanical material. The water heating is given by an Eheim Thermocontrol of 200w.