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Gas plays a major role in the dynamical evolution of young stellar objects.Its interaction with the dust is the key to our understanding planet formationlater on in the protoplanetary disc stage. Studying the gas content is acrucial step towards understanding YSO and planet formation. Such a study canbe made through spectroscopic observations of emission lines in thefar-infrared, where some of the most important gas coolants emit. We provide acompilation of observations of far-IR lines in 362 young stellar objectscovering all evolutionary stages, from Class 0 to Class III with debris discs.In the present paper we focus on [OI] and o-H2O emission at 63 microns. We haveretrieved all the available Herschel -PACS spectroscopic observations at 63microns that used the dominant observing mode, the chop-nod technique. Weprovide measurements of line fluxes for the [OI] 3P1-3P2 and o-H2O 808-717transitions at 63 microns computed using different methods. We check forspatially extended emission and further study the presence of multipledynamical components in line emission. The final compilation consists of lineand continuum fluxes at 63 microns for a total of 362 young stellar objects(YSOs). We detected [OI] line emission at 63 microns in 194 sources out of 362,and line absorption in another five sources. o-H2O was detected in 42 sources.We find evidence of extended [OI] emission in 77 sources, and detect 3sigmaresidual emission in 71 of them. We also looked for different componentscontributing to the line emission, and found evidence for multiple componentsin 30 sources. We explored correlations between line emission and continuumemission and find a clear correlation between WISE fluxes from 4.6 to 22microns and [OI] line emission. We conclude that the observed emission istypically a combination of disc/envelope and jet emission.

Herschel-PACS observations of far-IR lines in YSOs I: [OI] and H2O at 63 microns