Mae'n rhaid i ni ymddwyn mewn ffyrdd cyfrifol; a bod yn barod i wneud cyfraniad cadarnhaol at yr amgylchedd hwnnw er mwyn cael budd perthnasol ohono. Fel unrhyw amgylchedd naturiol arall, rhaid trin y môr fel rhywbeth sy'n rhoi budd i ni yn gyfnewid am rywbeth arall. I bysgotwyr masnachol, gallai hyn olygu gwarantu i roi gwybodaeth am y ddalfa neu dystiolaeth arall, yn gyfnewid am fynediad sicr i'r bysgodfa bob blwyddyn a dalfa ddibynadwy y gellir ei rhagweld. I enweirwyr môr hamdenol, gallai olygu bodloni gofynion o ran maint a nifer y pysgod yn gyfnewid am stoc dda y gallant barhau i bysgota amdani am ddim.  I'r rhai sy'n datblygu seilwaith morol mawr, megis ar gyfer ynni adnewyddadwy, gallai olygu buddsoddi yn yr economi leol, yn ogystal â ffi'r drwydded, yn gyfnewid am yr hawl i ddatblygu a rhedeg y safle dros nifer benodol o flynyddoedd.  I'r rhai sy'n rhedeg mentrau twristiaeth a'r rhai sy'n mwynhau nofio, syrffio neu hwylio, gallai olygu ymddwyn yn gyfrifol a chydymffurfio ag unrhyw reolau a chyfreithiau perthnasol, a rhoi gwybod am y sawl nad ydynt yn gwneud hynny, yn gyfnewid am yr hawl i barhau i fwynhau'r môr yn y ffordd honno.  Drwy wneud hynny, gall pob un ohonom fwynhau ein hamgylchedd morol; a bod yn hyderus y gallwn wneud hynny'n well yn y dyfodol.
We have to behave in responsible ways; and to be prepared to put something positive into that environment in order to get a material benefit back out. The sea, like any other natural environment, has to be treated as giving us something in return for something. For commercial fishers, this might be guaranteeing to provide appropriate information about catch or other evidence, in return for guaranteed access to a fishery year-on-year with a predictable and reliable volume of catch. For recreational sea anglers, it might be complying with requirements on minimum size and numbers of fish in return for a healthy stock that they can continue to fish for no charge. For those who develop large marine infrastructure, such as for renewable energy, it might be the investment in the local economy, as well as the licence fee, in return for the right to develop and run the site over a given number of years. For those whose business is in tourism enterprises and those who enjoy swimming, surfing or sailing , it might be behaving responsibly and conforming to any relevant rules and laws, and reporting those who do not, in return for the right to continue to enjoy the sea in that way. With that approach we can all use and enjoy our marine environment; and have confidence that we can do so better in the future.