What is the primary threat causing a loss of genetic integrity for M. treculii?

Answer

Hybridization with introduced smallmouth bass

The most significant ecological danger threatening the long-term survival and genetic distinctness of *Micropterus treculii* is introgressive hybridization. This occurs when the native Guadalupe bass interbreeds with the introduced smallmouth bass (*M. dolomieu*). Both species frequently share similar spawning sites, often preferring gravel nests situated in areas characterized by higher flow rates, which facilitates frequent interbreeding. This mixing results in a loss of genetic integrity for the pure Guadalupe bass lineage. Active management strategies, such as stocking purebred individuals, are necessary in areas like the Llano River specifically to combat the proliferation of these hybrid populations and preserve the species as a distinct biological entity.

What is the primary threat causing a loss of genetic integrity for M. treculii?

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Guadalupe Bass (Micropterus Treculii) - The State Fish of Texas

Related Questions

Who established the binomial nomenclature Micropterus treculii in 1874?What Greek words form the derivation for the genus name Micropterus?The specific epithet treculii honors which historical figure?Within which biological family, known as the sunfish family, does Micropterus treculii reside?To which U.S. state is the Guadalupe bass specifically endemic, according to its distribution?What is the primary threat causing a loss of genetic integrity for M. treculii?In terms of current dynamics, what type of water environment does the Guadalupe bass prefer over quiet waters?At approximately what age do both male and female Guadalupe bass typically reach sexual maturity?The common name Guadalupe bass is directly tied to which geographical feature?Fly fishermen sometimes call the Guadalupe bass the "Texas brook trout" due to what characteristic?
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