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newt larvae

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cactusboy View Drop Down
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    Posted: 06 Sep 2006 at 12:16pm
hello there! I've got a garden pond with a population of 3 frogs, loads of
waterboatmen, small water beetles, and some newt larvae - I've been
looking everywhere to identify what kind of newts they are:

in daylight they appear quite black, but look much paler in torch light,
and they have slightly serrated tails with small black spots. They seem
quite cocky, as in they swim about casually often at the surface. They
have all 4 limbs and amazing looking gills, and are approaching the size
of an adult smooth newt - there are only 2 or three of these, and then
there are a few much smaller newt larvae which are just as developed but
seem dwarfed next to them. All larvae were introduced at the same time,
from a friend's pond and they were all the same size when put in (my
friend has no idea what kind of newts laid the eggs as he doesn't really
bother with his pond at all).

I would love to know what the bigger ones are, and how to tell the various
larvae apart (none of the pages are that helpful regarding larvae)

Also, do waterboatmen eat newt larvae cos they seem to keep eyeing up
the smaller ones but think better of tackling the chunkier ones?

Sorry if this is all going over old ground but I'd really appreciate some
help, or pics of newt larvae that I can compare them to! :D
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Morpheus View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Morpheus Quote  Post ReplyReply Direct Link To This Post Posted: 06 Sep 2006 at 1:22pm
hi cactusboy

the water boatmen are visous things but look kind of cute they will probably kill the small newt larvae but vise versa for the larger ones who i think sound like great crested newt larvae so you cant move or touch them as in the so rare. pics would be nice though
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cactusboy Quote  Post ReplyReply Direct Link To This Post Posted: 06 Sep 2006 at 7:06pm
Hello Morpheus - cheers for the info! I realise that these might be great
crested newts, and so I was extremely careful getting a photo of one - I
kept
stress to a minimum and only took one pic so it was quick - I didn't
handle
the newt in any way either, and it was fine on release and swam around
like
nothing had happened! Maybe it's just a smooth newt but they seem to
spend most of the time near the surface both afternoon and night...

here it is!
let me know!!!



Edited by cactusboy
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Donny View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Donny Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 2006 at 6:47am
That's a fairly chunky looking tadpole - it doesn't look like Smooth or Palmate newt, but i haven't seen enough Crested Newt larvae to say more....
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Jeroen View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jeroen Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 2006 at 7:18am
Hmmm ... Looks like a neotenous Alpine Newt to me but may be Great Crested. Any chance of a lateral view picture?
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cactusboy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cactusboy Quote  Post ReplyReply Direct Link To This Post Posted: 07 Sep 2006 at 11:13am
Hello everyone!

Sorry it's only a shot from the top, but the digicam ran out of charge after
1 attempt (much to my annoyance) - as I didn't want to mess the newt
about lots, I put it back in straight away - in profile the larvae have a
visibly crested tail, and the crest runs up the back a fair way, and as I said
before, they have a few black dots on...

When I was a kid I used to have a pond with newts in (smooth and
palmate) but I didn't ever see larvae like these - the other ones in the
current pond have pale lines down their backs which the one in the pic
doesn't have...

the one in the pic is about 7cm long! and when they were introduced at
the end of June this year, they were only about 3cm so they've been
growing at an alarming rate!!

the pond is thick with daphnia and there are loads of things like blood
worm and mosquito larvae, so I guess they have plenty to go at

the other larvae are maybe only about 4cm and look much more slender
compared to these

can anyone positively ID it from this pic?
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herpetologic2 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote herpetologic2 Quote  Post ReplyReply Direct Link To This Post Posted: 08 Sep 2006 at 9:14am

 

Where are you in the UK? - the yellow lines along the back could indicate that the newts are alpine newts - Another picture taken from the side would have helped - the faint gold/black bands on the feet suggest to me it could be a crested newt

if you send me a post code (pm) I can look to see if any alpine newts are close by

JC

 

 

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cactusboy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cactusboy Quote  Post ReplyReply Direct Link To This Post Posted: 08 Sep 2006 at 10:49am
I'm actually in the Willerby area of Hull - HU10 area, but the newt larvae
were in a pond near Market Weighton - the pond they're from isn't a
protected site, so if this IS a great crested then obviously I would disclose
both locations to the authorities. I talked to the park rangers from
Bransholme in Hull and they said they have a lot of great crested and are
licensed to handle them!

I think the photo is misleading - they don't have a yellow band - what you're
seeing is the crest catching the light (it runs pretty much all the way up the
newt)
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herpetologic2 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote herpetologic2 Quote  Post ReplyReply Direct Link To This Post Posted: 08 Sep 2006 at 11:03am

 

I am referring to the toes on the feet - there are slight bands on them - a key feature to id cresties

Jon

Report your sightings to the Record Pool http://arguk.org/recording
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cactusboy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cactusboy Quote  Post ReplyReply Direct Link To This Post Posted: 08 Sep 2006 at 1:01pm
ah - I see what you mean - they do look banded (sorry)!!
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