Re: PESO: European brook lamprey

[Alan C]

More interesting facts. So you never tried a Lamprey Burger?

Alan C

On 21-Mar-23 06:50 AM, Larry Colen wrote:



On Mar 19, 2023, at 4:59 AM, Alan C  wrote:

I did some research. Lampreys have a very unusual lifecycle - egg, larva, adult & then 
die immediately after procreating for the first time. The big difference between the 
species is the larval stage which can last from 2 to 10 years. The life cycle of the brook 
lamprey is very short.  Their larvae feed on algae & rubbish before transforming into 
sexually mature adults. The digestive tract of all adults quickly becomes degenerate so 
they can no longer feed in the normal way. The larger species like the river lampreys which 
have specially adapted mouthparts become parasitic & are able to survive a few more 
years on a blood diet. Eventually, they too perish after procreation. Parasitism of humans 
has been recorded but is uncommon.

Alan C

I've never seen a live one, but when I was a kid my back yard was littered with 
their corpses as they'd die after spawning and would catch on rocks and sticks 
in the river shallows.

https://coastal-watershed.org/lamprey-san-lorenzo-river/

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Re: PESO: European brook lamprey

[Larry Colen]

> On Mar 19, 2023, at 4:59 AM, Alan C  wrote:
> 
> I did some research. Lampreys have a very unusual lifecycle - egg, larva, 
> adult & then die immediately after procreating for the first time. The big 
> difference between the species is the larval stage which can last from 2 to 
> 10 years. The life cycle of the brook lamprey is very short.  Their larvae 
> feed on algae & rubbish before transforming into sexually mature adults. The 
> digestive tract of all adults quickly becomes degenerate so they can no 
> longer feed in the normal way. The larger species like the river lampreys 
> which have specially adapted mouthparts become parasitic & are able to 
> survive a few more years on a blood diet. Eventually, they too perish after 
> procreation. Parasitism of humans has been recorded but is uncommon.
> 
> Alan C

I've never seen a live one, but when I was a kid my back yard was littered with 
their corpses as they'd die after spawning and would catch on rocks and sticks 
in the river shallows.

https://coastal-watershed.org/lamprey-san-lorenzo-river/

--
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l...@red4est.com.   sent from Mirkwood


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Re: PESO: European brook lamprey

[Toine]

Fields of brook lampreys. That must have been a sight. I never saw them and
the 20 or so lampreys in the counting tank were catched by fishermen with
some kind of electric stunning device to catch all the fish.
Sad to realize what has gone in a few decades.

On Mon, 20 Mar 2023 at 11:16, mike wilson  wrote:

> Lampreys are fascinating organisms.  Apart from being (afaik) the only
> four-eyed vertebrate, their body chemistry provides rich hunting grounds
> for pharmaceutics.  Some are anadromous, some are not; some have a
> parasitic phase of their life cycle, some do not.
>
> As a child, I remember seeing "fields" of brook lampreys in streams, only
> the upper parts of their bodies out of the gravel as they hunted passing
> invertebrates in the current.
>
> Used as a meat substitute here during Lent, due to the non-fishy taste of
> the flesh, they were usually eaten in pies.
>
> If I remember correctly, there was a Roman governor who enjoyed executing
> people by having them thrown into his lamprey pool.
>
> > On 19/03/2023 21:07 ann sanfedele  wrote:
> >
> >
> > Glad John asked.. I wondered too .  refrained from making jokey
> > comments  like "cute little suckers" .. ooops.. I did anyway ;-)
> >
> > I got sucked on by them or their cousins wading in a freshwater pond
> > when I was a kid.. tiny ones but not appreciated.  You captured them
> > almost too well
> >
> > ann
> >
> > On 3/19/2023 4:38 PM, Toine wrote:
> > > If they are present water quality is good. Excellent water quality
> maybe
> > > doesnt exist any more in this part of the world.
> > >
> > > On Sun, 19 Mar 2023, 19:26 John Sessoms, 
> wrote:
> > >
> > >> Indicates good quality or bad quality?
> > >>
> > >> On 3/18/2023 4:28 PM, Toine wrote:
> > >>> This fish is very rare and if present an indication of water
> quality. I
> > >> had
> > >>> the opportunity to see them because they were just being counted.
> > >>>
> > >>> https://repiuk.nl/new/_1033255/
> > >>>
> > >>> Lumix G9, Leica 12-60
> > >>>
> > >>> Toine
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Re: PESO: European brook lamprey

[mike wilson]

Lampreys are fascinating organisms.  Apart from being (afaik) the only 
four-eyed vertebrate, their body chemistry provides rich hunting grounds for 
pharmaceutics.  Some are anadromous, some are not; some have a parasitic phase 
of their life cycle, some do not.

As a child, I remember seeing "fields" of brook lampreys in streams, only the 
upper parts of their bodies out of the gravel as they hunted passing 
invertebrates in the current.

Used as a meat substitute here during Lent, due to the non-fishy taste of the 
flesh, they were usually eaten in pies.

If I remember correctly, there was a Roman governor who enjoyed executing 
people by having them thrown into his lamprey pool.

> On 19/03/2023 21:07 ann sanfedele  wrote:
> 
>  
> Glad John asked.. I wondered too .  refrained from making jokey 
> comments  like "cute little suckers" .. ooops.. I did anyway ;-)
> 
> I got sucked on by them or their cousins wading in a freshwater pond 
> when I was a kid.. tiny ones but not appreciated.  You captured them
> almost too well
> 
> ann
> 
> On 3/19/2023 4:38 PM, Toine wrote:
> > If they are present water quality is good. Excellent water quality maybe
> > doesnt exist any more in this part of the world.
> >
> > On Sun, 19 Mar 2023, 19:26 John Sessoms,  wrote:
> >
> >> Indicates good quality or bad quality?
> >>
> >> On 3/18/2023 4:28 PM, Toine wrote:
> >>> This fish is very rare and if present an indication of water quality. I
> >> had
> >>> the opportunity to see them because they were just being counted.
> >>>
> >>> https://repiuk.nl/new/_1033255/
> >>>
> >>> Lumix G9, Leica 12-60
> >>>
> >>> Toine
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Re: PESO: European brook lamprey

[ann sanfedele]

Glad John asked.. I wondered too .  refrained from making jokey 
comments  like "cute little suckers" .. ooops.. I did anyway ;-)


I got sucked on by them or their cousins wading in a freshwater pond 
when I was a kid.. tiny ones but not appreciated.  You captured them

almost too well

ann

On 3/19/2023 4:38 PM, Toine wrote:

If they are present water quality is good. Excellent water quality maybe
doesnt exist any more in this part of the world.

On Sun, 19 Mar 2023, 19:26 John Sessoms,  wrote:


Indicates good quality or bad quality?

On 3/18/2023 4:28 PM, Toine wrote:

This fish is very rare and if present an indication of water quality. I

had

the opportunity to see them because they were just being counted.

https://repiuk.nl/new/_1033255/

Lumix G9, Leica 12-60

Toine
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Re: PESO: European brook lamprey

[Toine]

If they are present water quality is good. Excellent water quality maybe
doesnt exist any more in this part of the world.

On Sun, 19 Mar 2023, 19:26 John Sessoms,  wrote:

> Indicates good quality or bad quality?
>
> On 3/18/2023 4:28 PM, Toine wrote:
> > This fish is very rare and if present an indication of water quality. I
> had
> > the opportunity to see them because they were just being counted.
> >
> > https://repiuk.nl/new/_1033255/
> >
> > Lumix G9, Leica 12-60
> >
> > Toine
> > --
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Re: PESO: European brook lamprey

[John Sessoms]

Sucks to be a brook lamprey 

On 3/19/2023 10:03 AM, Toine wrote:

Book lampreys can only suck, not bite.

https://repiuk.nl/new/#pid=_1033311.jpg

On Sun, 19 Mar 2023 at 12:59, Alan C  wrote:


I did some research. Lampreys have a very unusual lifecycle - egg,
larva, adult & then die immediately after procreating for the first
time. The big difference between the species is the larval stage which
can last from 2 to 10 years. The life cycle of the brook lamprey is very
short.  Their larvae feed on algae & rubbish before transforming into
sexually mature adults. The digestive tract of all adults quickly
becomes degenerate so they can no longer feed in the normal way. The
larger species like the river lampreys which have specially adapted
mouthparts become parasitic & are able to survive a few more years on a
blood diet. Eventually, they too perish after procreation. Parasitism of
humans has been recorded but is uncommon.

Alan C

On 19-Mar-23 09:06 AM, Toine wrote:

That would be river lampreys, this is a brook lamprey they dont migrate

or

feed on fish.

On Sun, 19 Mar 2023, 04:28 Alan C,  wrote:


Ugh! Draculas of the fish world. The St. Lawrence Seaway gave Lampreys
access to the Great Lakes where they decimated the fish.

Alan C

On 18-Mar-23 10:28 PM, Toine wrote:

eeThis fish is very rare and if present an indication of water

quality. I

had

the opportunity to see them because they were just being counted.

https://repiuk.nl/new/_1033255/

Lumix G9, Leica 12-60

Toine
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Re: PESO: European brook lamprey

[John Sessoms]

Prompted me to look some stuff up ...

I always thought "surfeit" meant "plenty", but apparently it means 
"excess" ...


And since he died in Normandy, it could have been brook lampreys. They 
may be small, but so are sardines.


Anyway, I learned something new.


On 3/18/2023 4:41 PM, Bob W PDML wrote:

Fascinating. One of our medieval kings is said to have died ‘of a surfeit of 
lampreys’, though presumably not brook lampreys as they seem to small to eat.


On 18 Mar 2023, at 20:29, Toine  wrote:

This fish is very rare and if present an indication of water quality. I had
the opportunity to see them because they were just being counted.

https://repiuk.nl/new/_1033255/

Lumix G9, Leica 12-60

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Re: PESO: European brook lamprey

[John Sessoms]

Indicates good quality or bad quality?

On 3/18/2023 4:28 PM, Toine wrote:

This fish is very rare and if present an indication of water quality. I had
the opportunity to see them because they were just being counted.

https://repiuk.nl/new/_1033255/

Lumix G9, Leica 12-60

Toine
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Re: PESO: European brook lamprey

[Toine]

Book lampreys can only suck, not bite.

https://repiuk.nl/new/#pid=_1033311.jpg

On Sun, 19 Mar 2023 at 12:59, Alan C  wrote:

> I did some research. Lampreys have a very unusual lifecycle - egg,
> larva, adult & then die immediately after procreating for the first
> time. The big difference between the species is the larval stage which
> can last from 2 to 10 years. The life cycle of the brook lamprey is very
> short.  Their larvae feed on algae & rubbish before transforming into
> sexually mature adults. The digestive tract of all adults quickly
> becomes degenerate so they can no longer feed in the normal way. The
> larger species like the river lampreys which have specially adapted
> mouthparts become parasitic & are able to survive a few more years on a
> blood diet. Eventually, they too perish after procreation. Parasitism of
> humans has been recorded but is uncommon.
>
> Alan C
>
> On 19-Mar-23 09:06 AM, Toine wrote:
> > That would be river lampreys, this is a brook lamprey they dont migrate
> or
> > feed on fish.
> >
> > On Sun, 19 Mar 2023, 04:28 Alan C,  wrote:
> >
> >> Ugh! Draculas of the fish world. The St. Lawrence Seaway gave Lampreys
> >> access to the Great Lakes where they decimated the fish.
> >>
> >> Alan C
> >>
> >> On 18-Mar-23 10:28 PM, Toine wrote:
> >>> eeThis fish is very rare and if present an indication of water
> quality. I
> >> had
> >>> the opportunity to see them because they were just being counted.
> >>>
> >>> https://repiuk.nl/new/_1033255/
> >>>
> >>> Lumix G9, Leica 12-60
> >>>
> >>> Toine
> >>> --
> >>> %(real_name)s Pentax-Discuss Mail List
> >>> To unsubscribe send an email to pdml-le...@pdml.net
> >>> to UNSUBSCRIBE from the PDML, please visit the link directly above and
> >> follow the directions.
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Re: PESO: European brook lamprey

[Alan C]

I did some research. Lampreys have a very unusual lifecycle - egg, 
larva, adult & then die immediately after procreating for the first 
time. The big difference between the species is the larval stage which 
can last from 2 to 10 years. The life cycle of the brook lamprey is very 
short.  Their larvae feed on algae & rubbish before transforming into 
sexually mature adults. The digestive tract of all adults quickly 
becomes degenerate so they can no longer feed in the normal way. The 
larger species like the river lampreys which have specially adapted 
mouthparts become parasitic & are able to survive a few more years on a 
blood diet. Eventually, they too perish after procreation. Parasitism of 
humans has been recorded but is uncommon.


Alan C

On 19-Mar-23 09:06 AM, Toine wrote:

That would be river lampreys, this is a brook lamprey they dont migrate or
feed on fish.

On Sun, 19 Mar 2023, 04:28 Alan C,  wrote:


Ugh! Draculas of the fish world. The St. Lawrence Seaway gave Lampreys
access to the Great Lakes where they decimated the fish.

Alan C

On 18-Mar-23 10:28 PM, Toine wrote:

eeThis fish is very rare and if present an indication of water quality. I

had

the opportunity to see them because they were just being counted.

https://repiuk.nl/new/_1033255/

Lumix G9, Leica 12-60

Toine
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Re: PESO: European brook lamprey

[Toine]

That would be river lampreys, this is a brook lamprey they dont migrate or
feed on fish.

On Sun, 19 Mar 2023, 04:28 Alan C,  wrote:

> Ugh! Draculas of the fish world. The St. Lawrence Seaway gave Lampreys
> access to the Great Lakes where they decimated the fish.
>
> Alan C
>
> On 18-Mar-23 10:28 PM, Toine wrote:
> > This fish is very rare and if present an indication of water quality. I
> had
> > the opportunity to see them because they were just being counted.
> >
> > https://repiuk.nl/new/_1033255/
> >
> > Lumix G9, Leica 12-60
> >
> > Toine
> > --
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Re: PESO: European brook lamprey

[Alan C]

Ugh! Draculas of the fish world. The St. Lawrence Seaway gave Lampreys 
access to the Great Lakes where they decimated the fish.


Alan C

On 18-Mar-23 10:28 PM, Toine wrote:

This fish is very rare and if present an indication of water quality. I had
the opportunity to see them because they were just being counted.

https://repiuk.nl/new/_1033255/

Lumix G9, Leica 12-60

Toine
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Re: PESO: European brook lamprey

[Daniel J. Matyola]

Charming critters!

Dan Matyola
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*



On Sat, Mar 18, 2023 at 4:29 PM Toine  wrote:

> This fish is very rare and if present an indication of water quality. I had
> the opportunity to see them because they were just being counted.
>
> https://repiuk.nl/new/_1033255/
>
> Lumix G9, Leica 12-60
>
> Toine
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Re: PESO: European brook lamprey

[Bob W PDML]

Fascinating. One of our medieval kings is said to have died ‘of a surfeit of 
lampreys’, though presumably not brook lampreys as they seem to small to eat.

> On 18 Mar 2023, at 20:29, Toine  wrote:
> 
> This fish is very rare and if present an indication of water quality. I had
> the opportunity to see them because they were just being counted.
> 
> https://repiuk.nl/new/_1033255/
> 
> Lumix G9, Leica 12-60
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PESO: European brook lamprey

[Toine]

This fish is very rare and if present an indication of water quality. I had
the opportunity to see them because they were just being counted.

https://repiuk.nl/new/_1033255/

Lumix G9, Leica 12-60

Toine
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