https://www.selleckchem.com/pr....oducts/dlin-kc2-dma.
We find strong positive relationships between gill slit height and gill surface area at two scales (i) for total gill surface area and mean gill slit height across species and (ii) for parabranchial gill surface area and individual gill slit height within and across species. We also find that gill slit height is a consistent proportion of the fork length of physical specimens. Consequently, relative gill slit height measured from field guide illustrations proved to be surprisingly comparable to those measured from physical specimen