Lake Thetis is a saline coastal lake in the mid-western region of Western Australia. The lake is situated east of the small town Cervantes, inland from the Indian Ocean, on a Quaternary limestone pavement.Choose to start, finish, or center your holiday on a trip to Lake Thetis by using our Cervantes online road trip planner .
The lake is one of only a few places in the world with living marine stromatolites. The Lake Thetis stromatolites exhibit unusual columnar branching. These narrow, closely spaced and almost parallel columns are extremely rare in modern stromatolites.
Alongside the stromatolites, a diverse array of benthic microbial communities, such as algal mats, inhabit various layers of the lake. Some of these algal mats are associated with the stromatolites while most confine themselves to a particular area such as the high foreshore areas, splash zone or the central basin of the lake.
The lake water is alkaline and nutrient poor but provides an ideal environment for bottom dwelling microbial communities. The lake contains some small fish, amphiods and a few crustacean species adapted to living in highly saline environments.
The stromatolite community is threatened by nutrient enrichment and physical crushing. An interim recovery plan is currently being written which will provide direction to further protect this extremely valuable community for future generations.
In March 2008, a new entry road and car park, as well as walkways on the shore of the lake were constructed. Additionally, a disused rubbish pit on the northern side of the lake is being rehabilitated and this has eliminated threats associated with rubbish disposal.
Lake Thetis Reviews
It is wroth the stop and make sure you read all about their formation and development. It is a only a short walk from the carp park to have a look around more »
I denna sjö finns det stromatoliter så att den är väl värd ett besök. Man kommer riktigt nära dem om man går ut på bryggan och då kan man få fina foton. more »In this lake there is stromatoliter so that it is well worth a visit. You come really close to them if you go out on the jetty and then you can get nice photos.
Good place to visit on the way to cervantes especially if you are into nature.
You can find stromatolites and thrombolites here. There is a platform you can walk on and a few boards that contain information on the living fossil.
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