Strain and Location do not go hand in hand

[the animal guy]

genus strain is 1 thing, and geographic location is another thing..

For example, if the country got 50 locations to catch fish, it does NOT mean there are 50 different variants of genus..

true or false?

 

[Rivers2k]

True, I will often use the words different variant as in different variations but not different genus.

 

[gamerpond1]

True like carpintis theres tons of places to get them but only like five varients those six are only because they were isolated from all other carpintis what I cant seem too wrap my head around is fenestratus pink varient instead of complete isolation its found in one part of one lake with I believe regular fenestratus in the rest of the lake

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[duanes]

example
Herichthys carpintis location Chairel

or Herichthys carpintis location Escondido
but other species are not simply variants (strains?) ie
Herichthys cyanoguttatus
Herichthys minkleyi
Herichthys tamasopoensus (below)

species are placed in a different (or new) genus if scientists find there is enough difference in those species of the (former) genus to warrant being place elsewhere
such as the recent case newly created genus of Nosferatu
I have expected this change for a while, the 2 below (and others) have always seemed very different than normal type species of Herichthys
Herichthys pantostictus or Herichthys steindachneri seems to now have be
Nosferatu pantostictus (below)

Nosferatu steindachneri
and another half dozen or so.

 

[gamerpond1]

Actually what I was talking about with carpintis varients were chairel, Escondido, tamuin, rio salto and rio hondo I wasn't including other species as varients

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[dogofwar]

Correct, although I think you mean to say "variants of a species" because variants of a Genus would be (potentially) different species.

It all depends on the 50 fishing sites and the species.

Some fishing sites couldn't help but produce the same fish because they're physically connected (i.e. aren't genetically isolated from each other). Genetic differentiation (i.e. evolution) is driven by isolation and other factors that alter which individuals in a population survive and reproduce.

Two spots on the same river or a tributary emptying into a river would likely have "the same" fish (unless there is a physical barrier to prevent the fish from mixing).

There can be quite a bit of variability in populations of fish reflecting the genetic diversity of the population.

Matt

genus strain is 1 thing, and geographic location is another thing..

For example, if the country got 50 locations to catch fish, it does NOT mean there are 50 different variants of genus..

true or false?

 

[dogofwar]

That vendors give fish different names doesn't mean that the fish are actually different variants (unique populations).

Matt

Actually what I was talking about with carpintis varients were chairel, Escondido, tamuin, rio salto and rio hondo I wasn't including other species as varients

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[newworld]

Like Matt said regarding vendors using different names, some vendors use location names that don't even exist so also be wary of this...

 

[cichlidfish]

Correct, although I think you mean to say "variants of a species" because variants of a Genus would be (potentially) different species.

It all depends on the 50 fishing sites and the species.

Some fishing sites couldn't help but produce the same fish because they're physically connected (i.e. aren't genetically isolated from each other). Genetic differentiation (i.e. evolution) is driven by isolation and other factors that alter which individuals in a population survive and reproduce.

Two spots on the same river or a tributary emptying into a river would likely have "the same" fish (unless there is a physical barrier to prevent the fish from mixing).

There can be quite a bit of variability in populations of fish reflecting the genetic diversity of the population.

Matt

Best explanation. A lot of the same sp. from different locations can really look different or have adapted to a certain environment. Colors, markings, size, shape, and water conditions (like some CA. cichlids thrive in brackish water). I think this is why I think a lot of fish get labeled as hybrids.

 

[duanes]

Strain may also be affected by availability of food sources.
There is a molluscivores strain of Herichthys minkleyi with strong crushing jaws, that seems to become most populous during high snail populations, but the detritivore strain with average dentition, is normally most common.
There are also seem to be 2 "strains" of beani available, they are from 2 different river systems, and have different color variation and intensities. This may be due to one system having a different color algae used as a staple food source by the beani.

I also agree that sometimes marketing by collectors or vendors comes into play, and to tell you the truth, I cannot see the difference between my carpintus "chairel" and many "escondido" I have seen.