Guppy Longevity

 

Older Female
Older Male

My latest article Guppy Longevity, Inbreeding and Outcrossing (39 pages and 97 scientific references) discusses the genetics of longevity and answers the question of why fancy guppies don’t live that long.   Article  delves into the many factors (inbreeding, outcrossing, heterosis, purging, outbreeding depression, evolution, and disease) that are associated with  longevity.  It puts much of the blame for guppy fragility onto the all too common practice of using only young adults as breeders.     I have tried to make the science understandable, educational, and interesting.   Photo shows a 15 month old male and female.   Still room for improvement, but this is progress.   (Two years ago, my guppies were dying of old age or “what-not” at 5-8 months.)

Author: Diana Walstad

I'm a former science researcher that keeps aquariums and likes to write books.

One thought on “Guppy Longevity”

  1. So I finally understand why some of my males guppies (never mated or reproducted) lived so longer (about 1 year and half)…

    Like

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