Length data are to be collected and recorded at the most precise level appropriate for the species (cm or mm and whether to the nearest unit or unit below) and the type of measurement used (total length, fork length, or standard length) is also to be recorded.
Tá sonraí maidir le fad le bailiú agus le taifeadadh ag an leibhéal is beaichte is iomchuí i ndáil leis an speiceas (cm nó mm agus cibé acu go dtí an t-aonad is gaire nó go dtí an t-aonad is airde faoi bhun an leibhéil lena mbaineann) agus tá an cineál tomhais a úsáidtear (fad iomlán, fad go gabhal an eireabaill, nó fad caighdeánach) le taifeadadh freisin.