Talk:Shark Bay
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This needs work. "In Shark Bay's hot, dry climate, evaporation greatly exceeds the annual precipitation rate. Thus, the seawater in the shallow bays becomes very salt-concentrated, or 'hypersaline'. Seagrasses also restrict the tidal flow of waters through the bay area, preventing the ocean tides from diluting the sea water. The water of the bay is 1.5 to 2 times more salty than the surrounding ocean waters." Normal ocean salinity is around 35 parts per thousand (‰or ppt) so this statement is that the water of the bay is about 53‰ to 70‰. I'm sure that there are isolated areas - tidal pools and very shallow embayments - of Shark Bay which get up there, but the vast majority of the bay is in reasonably good contact with the surrounding ocean and has a highish, but not abnormal salinity.Cross Reference (talk)11:26, 5 June 2021 (UTC)[reply]
Shark Bay stromatolites are 3000 million years old! They would have been wiped out by theWoodleigh crater impact 364 Ma which was (possibly partly) responsible for a minor mass extinction in the Devonian period. Incidentally, Shark Bay is formed by the incoming trajectory of that meteor.Aarghdvaark (talk)05:17, 2 September 2011 (UTC)[reply]
I think someone has mixed up somethings a bit. Stromatolites now are presented, as if they were specimen of a species. The articleStromatolite describe them as a kind of structure, and mentions that these structures may be created by different kinds of microorganism. I think the latter is true, since that is what I've learnt about stromatolites elsewhere.
Besides, the conditions for life were rather different from today 3.5 Gy ago, and I doubt that the species then forming stromatolites could survive at Shark Bay today.JoergenB (talk)15:33, 24 August 2017 (UTC)[reply]
I believe that "species" is vague and not correct. What's meant is "a living representative of stromatolite formations"— Precedingunsigned comment added byRonkonkaman (talk •contribs)16:36, 19 June 2018 (UTC)[reply]
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