We are working with a long lived fish that lives in the Colorado River
(catostomus latipinnis).  It appears that there may be limited recruitment
into the young of year and juvenile stages, we would like to try and model
how much recruitment is necessary to sustain the present population of
adults. Are there any refs. on such population models that we might use
to start with?
Thank you
Lainie Johnstone & Michele Thieme