Sentences with phrase «non-native rainbow trout»

(a) Number of offspring per female versus the proportion of non-native rainbow trout admixture.

(a) Number of offspring per male versus the proportion of non-native rainbow trout admixture.

A declining exponential regression fitted to the data (y = 13.039 e − 3.040 x) suggests that reproductive success declines by approximately 50 per cent, with 20 per cent admixture indicating that even small amounts of non-native rainbow trout introgression rapidly reduce reproductive success in later - generation hybrids (figures 1 and 2).

Reproductive success declined sharply with an increase in the proportion of non-native rainbow trout admixture.

Here, we used parentage analysis with multilocus microsatellite markers to measure how varying levels of genetic introgression with non-native rainbow trout (Oncorhynchus mykiss) affect reproductive success (number of offspring per adult) of native westslope cutthroat trout (Oncorhynchus clarkii lewisi) in the wild.

Near Glen Canyon Dam, the researchers found food webs dominated by invasive New Zealand mud snails and non-native rainbow trout, with large mismatches in the food web and only a small percentage of available invertebrates eaten by fish.