Sentence examples for of farm origin from inspiring English sources

Trout of farm origin, hence, may achieve high establishment success if propagule pressure is high enough.

Phenotypic data provide compelling evidence for the presence of fish of farm origin (escapees) in these rivers, while genetic data provide clear evidence of hybridization of fish from different lineages, at least two of them of farm origin.

Salmonid populations of farm origin appear to be less successful invaders than populations of wild origin (Soto et al. 2001; Valiente et al. 2010), although as our study indicates, invasion success of non-native salmonids will also depend strongly on propagule pressure.

Caecal samples were chosen to ensure representation of farm-origin flock Campylobacter status, and for their higher sensitivity compared to cloacal swabs or faecal samples.

Agreement between phenotypic and genetic assignment of escapees was also high, and 85% of the 20 wild trout classified as likely recent escapees on the basis of their phenotype alone were estimated to have had on average 75% of genetic background of likely farm origin, while only 15% of them were misclassified as belonging to the pure wild group.

Four semen producers were used by the farms sampled, though 55% of the semen was of local farm origin as the main source of sequence clustering is the farm itself, in the model we accounted for a farm effect.

However, the reverse was not true, and most (82%) of the free-living trout genetically classified as being of pure farm origin had phenotypes that were indistinguishable from those of wild trout.

Trout of pure farm origin – and thus likely recent escapees – were found scattered in 12 of the 15 rivers (Fig. 1B), ranging in frequency between 0 and 50% (mean incidence among rivers = 19.2%, SE = 4.78), and represented 16% of all free-living trout sampled (average results from STRUCTURE and NEWHYBRIDS).

Salmonids rank among the most pervasive fish invaders (Fausch 2008; Pascual et al. 2009), despite the farm origin of many of the initial founder stocks (Riva Rossi et al. 2004; Valiente et al. 2010).

Non-parametric Mann–Whitney U test was used to test the variations in each trace element from fish otoliths (dependent variables), regarding the wild or farm origin of studied fish species (independent factors).

Specifically, some studies have successfully attempted to discriminate through trace elements in otoliths, the wild and farm origin of Atlantic salmon Salmo salar (Veinott and Porter 2005; Perrier et al. 2011), trout Salmo trutta and Oncorhyncus mykiss (Zitek et al. 2010), and yellowtail kingfish Seriola lalandi (Gillanders and Joyce 2005).