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Author Topic: Lake Malawi Profile  (Read 1162 times)

Offline Justin85

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Lake Malawi Profile
« on: February 13, 2014, 09:29:09 AM »

Lake Malawi




Lake Info


Lake Malawi is one of the three great lakes in the Great Rift Valley, in Africa. Surrounded by three countries, it is the most southern lake in the rift valley. Malawi borders most of the lake along the western coast, Tanzania at the north and Mozambique near the south east. The great lake is 600 kilometers long, and 80km at its widest point. The surface area is close to 31,000 square kilometres. The lakes largest outlet is the Shire River. It is the third largest lake in Africa, and the tenth largest in the world. This vast underwater space provides many different environmental niches, which has led to to specialization of many cichlid species.




Habitats


Wave-washed upper rocky
Sediment-free rocky
Deep, sediment-rich rocky
Intermediate (sand and rocks)
Shallow intermediate
Sheltered bays with aquatic plants
Sandy (no rocks)




Chemistry


If you want to keep any fish from Lake Malawi, then its natural water quality should be of interest to you. It is very important to try and replicate their natural habitat to prevent stress, which will help them to have long healthy lives. The water in Lake Malawi is slightly alkaline:




PH between 7.4 - 8.6
KH (carbonate hardness) ranging from 6 to 8 dH - 104 to 143 ppm




The lakes water temperature is very stable, mostly due to to the large water mass. It ranges from 24-29C (or 75-84F) at most depths, with the deepest places at roughly 22C (72F). These underwater figures apply all year round.






Wildlife


Open water predators
Includes the majority of cichlids (by genus only) that exist in Lake Malawi
Alticorpus, Aristochromis, Aulonocara, Buccochromis, Caprichromis, Champsochromis, Chilotilapia, Copadichromis, Corematodus, Ctenopharynx, Cyrtocara, Dimidiochromis, Diplotaxodon, Docimodus, Exochochromis, Fossorochromis, Hemitaeniochromis, Hemitilapia, Lethrinops, Lichnochromis, Mchenga, Mylochromis, Naevochromis, Nimbochromis, Nyassachromis, Otopharynx, Pallidochromis, Placidochromis, Protomelas, Rhamphochromis, Sciaenochromis, Stigmatochromis, Taeniochromis, Taeniolethrinops, Tramitichromis, Trematocranus, Tyrannochromis.




Mbuna
(by genus only)
Abactochromis, Cyathochromis, Cynotilapia, Genyochromis, Gephyrochromis, Iodotropheus, Labeotropheus, Labidochromis, Metriaclima, Melanochromis, Petrotilapia, Pseudotropheus, and Tropheops.


Tilapias
Oreochromis and Tilapia.


Non-cichlids
Lungfishes, Mormyrids, Characins, Minnows, Catfishes, Killifishes, True Eels and Spiny Eels.


Inverts
Sponges, Roundworms, Flatworms, Rotifers, Thorny-headed worms, Snails, Mussels, Segmented worms, Water bears, Crustaceans, Arachnids, Insects.