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gozzer

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I'm sure it does :)

John S

Quanti Canicula Ille In Fenestra

 

Species caught in 2017 Common Ash, Hawthorn, Hazel, Scots Pine, White Willow.

Species caught in 2016: Alder, Blackthorn, Common Ash, Crab Apple, Left Earlobe, Pedunculate Oak, Rock Whitebeam, Scots Pine, Smooth-leaved Elm, Swan, Wayfaring tree.

Species caught in 2015: Ash, Bird Cherry, Black-Headed Gull, Common Hazel, Common Whitebeam, Elder, Field Maple, Gorse, Puma, Sessile Oak, White Willow.

Species caught in 2014: Big Angry Man's Ear, Blackthorn, Common Ash, Common Whitebeam, Downy Birch, European Beech, European Holly, Hawthorn, Hazel, Scots Pine, Wych Elm.
Species caught in 2013: Beech, Elder, Hawthorn, Oak, Right Earlobe, Scots Pine.

Species caught in 2012: Ash, Aspen, Beech, Big Nasty Stinging Nettle, Birch, Copper Beech, Grey Willow, Holly, Hazel, Oak, Wasp Nest (that was a really bad day), White Poplar.
Species caught in 2011: Blackthorn, Crab Apple, Elder, Fir, Hawthorn, Horse Chestnut, Oak, Passing Dog, Rowan, Sycamore, Willow.
Species caught in 2010: Ash, Beech, Birch, Elder, Elm, Gorse, Mullberry, Oak, Poplar, Rowan, Sloe, Willow, Yew.

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Rapid evolutionary change and speciation has been observed several times in fish - notably in cichlids.

The effects of overfishing have also been noted as a major concern for several commercially important species because we like to eat big fish but the process of catching them favours those members of the species that grow smaller, mature earlier and therefore reproduce more effectively before being caught.

 

Change can also be remarkably slow - look at species like pike that have a circumpolar distribution where there has been no intermingling of populations for millennia.

Species caught in 2020: Barbel. European Eel. Bleak. Perch. Pike.

Species caught in 2019: Pike. Bream. Tench. Chub. Common Carp. European Eel. Barbel. Bleak. Dace.

Species caught in 2018: Perch. Bream. Rainbow Trout. Brown Trout. Chub. Roach. Carp. European Eel.

Species caught in 2017: Siamese carp. Striped catfish. Rohu. Mekong catfish. Amazon red tail catfish. Arapaima. Black Minnow Shark. Perch. Chub. Brown Trout. Pike. Bream. Roach. Rudd. Bleak. Common Carp.

Species caught in 2016: Siamese carp. Jullien's golden carp. Striped catfish. Mekong catfish. Amazon red tail catfish. Arapaima. Alligator gar. Rohu. Black Minnow Shark. Roach, Bream, Perch, Ballan Wrasse. Rudd. Common Carp. Pike. Zander. Chub. Bleak.

Species caught in 2015: Brown Trout. Roach. Bream. Terrapin. Eel. Barbel. Pike. Chub.

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All,

 

Just my opinion.

 

I seriously doubt if speciation occurs in fishes at a high rate if at all. I don't know the exact difference between speciation and hybridization. In only a very few fishes does physical contact take place during breeding. Then - I think for a new "species" to be recognized reproductively they must be isolated from the parent species and show observable and sufficient differences in both form and habit.

 

As I re-read - I believe my whole post is a question.

 

I don't know genus vs species vs ecological succession and that sort of stuff. (I'm hedging)

 

Phone

Edited by Phone
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Rapid evolutionary change and speciation has been observed several times in fish - notably in cichlids.

The effects of overfishing have also been noted as a major concern for several commercially important species because we like to eat big fish but the process of catching them favours those members of the species that grow smaller, mature earlier and therefore reproduce more effectively before being caught.

 

Change can also be remarkably slow - look at species like pike that have a circumpolar distribution where there has been no intermingling of populations for millennia.

There is no such thing as "fish".

The problem isn't what people don't know, it's what they know that just ain't so.
Vaut mieux ne rien dire et passer pour un con que de parler et prouver que t'en est un!
Mi, ch’fais toudis à m’mote

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Ken knows exactly what I mean. Are catfish, dogfish and goldfish in the same taxonomic group in the same way that sparrows, sparrowhawks and penguins are birds or that slow worms, leatherback turtles are all reptiles or that cats dogs and whales are all mammal?

Edited by corydoras

The problem isn't what people don't know, it's what they know that just ain't so.
Vaut mieux ne rien dire et passer pour un con que de parler et prouver que t'en est un!
Mi, ch’fais toudis à m’mote

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All,

 

So, what are they if not fish

 

Phone

Who?

 

http://www.telegraph.co.uk/men/the-filter/qi/5514118/QI-quite-interesting-facts-about-fish.html

Edited by corydoras

The problem isn't what people don't know, it's what they know that just ain't so.
Vaut mieux ne rien dire et passer pour un con que de parler et prouver que t'en est un!
Mi, ch’fais toudis à m’mote

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There is no such thing as "fish".

Gozzer didn't actually say "Osteichthyes" but I kinda went with the flow.

"Fish" is also a bit simpler when I'm ordering down at the chippy.

 

BTW: Are you sure that "reptiles" is a useful term - especially when you are identifying them as a phylogenetic group that is district from "birds" like sparrows, sparrowhawks and penguins?

Afterall, crocodiles are more closely related to birds than they are to lizards

 

Then of curse, there's the Monotremes.....

They are not closely related to marsupials or placental mammals, but rather they evolved from a distinct group of reptilian ancestors. Where do we put them?

 

There's a time and place for specificity.

Edited by Ken L

Species caught in 2020: Barbel. European Eel. Bleak. Perch. Pike.

Species caught in 2019: Pike. Bream. Tench. Chub. Common Carp. European Eel. Barbel. Bleak. Dace.

Species caught in 2018: Perch. Bream. Rainbow Trout. Brown Trout. Chub. Roach. Carp. European Eel.

Species caught in 2017: Siamese carp. Striped catfish. Rohu. Mekong catfish. Amazon red tail catfish. Arapaima. Black Minnow Shark. Perch. Chub. Brown Trout. Pike. Bream. Roach. Rudd. Bleak. Common Carp.

Species caught in 2016: Siamese carp. Jullien's golden carp. Striped catfish. Mekong catfish. Amazon red tail catfish. Arapaima. Alligator gar. Rohu. Black Minnow Shark. Roach, Bream, Perch, Ballan Wrasse. Rudd. Common Carp. Pike. Zander. Chub. Bleak.

Species caught in 2015: Brown Trout. Roach. Bream. Terrapin. Eel. Barbel. Pike. Chub.

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