The phrase "average length at" is correct and usable in written English.
It can be used when discussing the typical or mean length of something in a specific context, such as measurements or durations.
Example: "The average length at which the fish are caught is around 30 centimeters."
Alternatives: "mean length of" or "typical length for".
Lysates were sonicated to produce DNA fragments of an average length at 300 1000 bp.
As shown in Figure 4, the minimum average length at which maximum species recovery was obtained using COI for birds was 354 bp and 294 bp when sequences were trimmed off from5' (Figure 4A) and 3' (Figure 4B) ends respectively.
When fishing pressure was released, this bias vanished, and the average length at maturation quickly increased.
Thereafter, the average length at maturation slowly decreased again together with the decreasing average growth rate and thus in line with expectations based on the PMRN slope.
Similarly, β i, j is calculated as the ratio between the average length at maturity in region j and in the Camargue lagoons.
Furthermore, the length of the novel miRNA precursors ranged from 72 nt to 264 nt, with an average length at 150 nt.
In case of rbcL, 457 bp and 407 bp were the minimum average lengths at which maximum species recovery were obtained when trimmed off from 5' (Figure 4A) and 3' (Figure 4B) ends respectively.
The average lengths at ocean ages 2 and 3 years of male and female sockeye salmon spawning in tributaries of Iliamna Lake and the Wood River lakes have decreased over time (Fig. S3).
The parameter β i, j is used to correct for geographic variability in average length of silver eels and it is defined as the ratio between average lengths at maturity in region j and in the Camargue lagoons (the site where the original maturation model was calibrated; Table A1).
PPS with an average length of at least 11 saccharide units (F4, dp 11, 3.3 kDa) was 100-fold more effective than PPS of dp 8 (F5 and F6, 2.4 kDa).
This observation is particularly relevant to maize microRNAs genes with average length distributions at the 5′-regions of their primary microRNAs (pri-miRNAs) in the order of 100 300 nt (Zhang et al. 2009).
