Cenotes biotope, a freshwater habitat in the forests of the Yucatan peninsula in Mexico

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BIOTOPE AQUARIA

A biotope aquaria is an aquarium that is set-up to simulate a natural habitat. The fish, plants, water chemistry, and furnishings are similar to those that can be found in a specific natural setting.

The Yucatan peninsula has virtually no surface streams due ot its limestone foundation -- a relic of its past life as coral reef on the bottom of the ocean. Ground water sinks through the porous limestone and travels to the sea in underground rivers and caves (formed from millenia of acidified water dissolving conduits in the limestone). To date, almost sixty cave systems with more than 300 miles of passageways have been discovered.

These underwater streams can be accessed through cenotes, sinkholes in the surface limestone. Below you will find pictures from a surface cenote and a cave cenote. Because the water is mineral rich and remarkably clear, plant growth is especially vigorous. The plants you see in these pictures are a Chara, or freshwater macroalgae, species. Chara is also known as "stonewort."

Fish
In the photos below you will find tetras, mollies, and catfish. Cenotes are also home to some of the following species:

Characidae Astyanax fasciatus Cichlids Archocentrus octofasciatus 'Cichlasoma' urophthalmus 'Cichlasoma' synspilum Parachromis friedrischstahli Thorichthys meeki

Cupleidae Dorosoma sp. Pimelodidae Rhamdia guatemalensis Poecilidae Gambusia yucatana Poecilia mexicana Rivulidae Rivulus tenuis

[Other pictures from the Mexican Yucatan: caribbean | reefs | cenotes caves | lagoon | tulum | cancun region]

Except where noted, all images are the property of Rhett A. Butler, copyright 1994-2004. Contact me with questions regarding use, reproduction, or purchase of any of the pictures.

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Tulum ruins, Mexico Tulum ruins, Mexico Tulum ruins, Mexico Cenotes biotope Cenotes biotope Cenotes biotope Wild Mollies Cenotes biotope Catfish Cenotes biotope Cenote cave entrance Cenote cave entrance Cenote cave Roots in cenote cave Roots in cenote cave Roots in cenote cave Catfish Catfish Cenote cave Aquatic plant Aquatic plant Aquatic plant Tetras Cenote cave Tetras Cenote cave

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Other Biotope Resources

Catfish Hunters - Article [with pictures] from National Geographic on fish survey in Guyana
Poecilidi Goodeidi - Biotopes - Habitat descriptions for livebearers. Much of the site is in Italian -- some nice biotope pictures.
Badman's Tropical Fish - Biotope Aquariums - Biotope Aquarium Info
Shane's World - A collection of articles by various authors on the catfish of different regions of the world
Loaches Online - A River Runs Through It - Replicating fast flowing rivers and streams for hillstream loaches
Cichlid-Forum.com - The Great Lakes of East Africa
Aqua Botanic - Archived biotope descriptions
Asian and African Biotopes[Aqua Botanic] - Asia & Africa
Aqua Botanic - Tips on planted aquaria
Aqua Botanic - Sri Lanka - Sri Lank biotope including pictures
Planted Tank - Active forum on planted aquaria
NBAT - In Dutch
Tropica.com - Tropical Aquarium Plants
Simply Discus - Amano's pics of some Blackwater habitats
TheKrib.com - Biotope pages from TheKrib
Giant Amazon Biotope Tank