Post by Robert Nordsieck on Nov 16, 2010 12:17:39 GMT
Hi there,
I did not rest ;D, though I overslept this morning...
Anyway, here is a new one: Spring snails (Hydrobiidae) are very tiny snails (around 3 mm in size), which occur in springs (really???), but also in brackish water, in ground water and even in caves.
From an environmental biologist's view this family is very very interesting, because its species usually indicate clean water. On the other hand they are of course always threatened as soon as man enters the game
Spring snails (Hydrobiidae).
This time, I did not miss the point. *pun*.
As I am not firm with English spring snails, this page is mainly about the German and especially the Austrian ones. This, I think, however, is interesting enough. And some species occur in Britain as well.
Picture by Alexander Mrkvicka, Vienna.
This is a spring snail (Bythinella pareyssii) from a thermal spring in Lower Austria. The big black thing is a thermal spring nerite, Theodoxus prevostianus, which itself is smaller than 1 cm!
I find than most astonishing!
Kind regards
Robert
I did not rest ;D, though I overslept this morning...
Anyway, here is a new one: Spring snails (Hydrobiidae) are very tiny snails (around 3 mm in size), which occur in springs (really???), but also in brackish water, in ground water and even in caves.
From an environmental biologist's view this family is very very interesting, because its species usually indicate clean water. On the other hand they are of course always threatened as soon as man enters the game
Spring snails (Hydrobiidae).
This time, I did not miss the point. *pun*.
As I am not firm with English spring snails, this page is mainly about the German and especially the Austrian ones. This, I think, however, is interesting enough. And some species occur in Britain as well.
Picture by Alexander Mrkvicka, Vienna.
This is a spring snail (Bythinella pareyssii) from a thermal spring in Lower Austria. The big black thing is a thermal spring nerite, Theodoxus prevostianus, which itself is smaller than 1 cm!
I find than most astonishing!
Kind regards
Robert
That last pic with the match head and the snails is quite astonishing, because it shows dramatically the minute size of these snails.