Genetic analysis of captive spawning strategies for the endangered Rio Grande Silvery Minnow.

ABSTRACT: Captive breeding and rearing are central elements in conservation, management, and recovery planning for many endangered species including Rio Grande Silvery Minnow, a North American freshwater cyprinid. Traditionally, the sole purpose of hatcheries was to produce as many fish as feasible for stocking and harvest. Production quotas are also an important consideration in hatchery programs for endangered species, but they must also maintain and maximize genetic diversity of fish produced through implementation of best breeding practices. Here, we assessed genetic outcomes and measures of productivity (number of eggs and larval viability) for three replicates of three mating designs that are used for this small, pelagic-spawning fish. These were 1) monogamous mating, 2) hormone-induced commun

SUBMITTER: Osborne MJ 

PROVIDER: S-EPMC3695603 | biostudies-literature | 2013 May-Jun

REPOSITORIES: biostudies-literature