Sentence examples for of test species from inspiring English sources
We conclude that appropriately designed, relatively simple and inexpensive laboratory toxicity tests with a selection of test species are generally adequate, with small application factors, for predicting the environmental risk of polluting chemicals to freshwater ecosystems.
aSome aspects are not relevant for all studies, depending on choice of test species.
Lethal concentration in 50%% of test species (LC50) and effect concentration in 50%% of test species (EC50) values for PSOA ranged from 0.75 to 5.44 mg/L, representing a relatively small range spanning less than an order of magnitude.
Although, the growth response of test species did not follow the consistency in all experiments, in most cases, the results demonstrate the density-dependent phytotoxicity concept.
In 100% of the applications, the effects of B. thuringiensis proteins on NTOs were evaluated in laboratory studies using a standard set of test species representing a typical toxicological testing regime, e.g. as used for pesticide testing.
Identification of test species, number of individuals, investigated period of the lifecycle, reproductive condition, sex, strain, source, body weight, length or mass are aspects related to the "test species" that the four evaluation methods all together as consider important.
Here, we only provide a brief summary (Figure 2). Figure 2 Scheme for selection of testing species and developing relevant testing protocols.
Our proposed methodology for testing of non-target organisms is prescriptive with regard to the use of a procedure for selection of testing species and the development of proper testing protocols and risk hypotheses tailored to each case and receiving environment.
The unidirectional coefficient was computed as a total number of tested species reduced by the number of species, in which a given gene was not changed (i ns ) and by the double number of species, in which a given gene was oppositely expressed; then divided by the number of tested species.
Finally, as a consequence of the limited number of tested species in each phylum and lineage-specific gene losses, some orthologs might have been attributed a too recent origin.
For this analysis we generated individual gene lists for each time point, therefore the cutoffs for the score value were also set individually and were equal to the number of tested species in a particular time point (Additional file 4).
