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Re: KillieTalk Digest V2 #413
In a message dated 9/23/98 7:34:51 PM, Jochem.tHoen at 98_STUDENT.WAU.NL writes:
<<There are people that say they only crossbreed to see if fish are related,
but
you don't need to do that, when you know what species you have, you also know
how it is related to other species. >>
There are at least two reasons people cross killies:
1) Because they don't know any better and they happen to have two different
male and female subjects - not a good reason
2) For scientific purposes to determine the closeness or identical nature of
two closely related fish, which have not yet been fully investigated. This is
a valid reason if done in a scientific manner and the fish are not distributed
or handled irresponsibly. Many killifish are temporarily assigned a species
name/location but the fact is they may not be the same as others, until
someone does the detailed work to determine whether they are the same, closely
related or quite different. There are many species/locations that are still in
this category. The AKA at one time actually had a hybrid registry to try to
sort these things out. It does not and should not encourage irresponsible
crosses. Many people have experienced infertile fish that may have been the
result of dubious ancestry.
Lee Harper