The Ontario government requires most people to hold a valid fishing license to fish in Ontario, explains the Ontario government's website. Additionally, the Ontario government defines limits on the number of fish each license holder may catch and possess, which depend on the type of license, fishing zone, size of fish and time of year. Ontario sells Sport and Conservation fishing licenses. Sport licenses generally cost more but have higher catch and possession limits.
Catch limits refer to the number of fish an angler may take each day, states the Ontario government. Possession limits refer to the number of fish an angler may possess, including fish in storage, but not fish given away or eaten. Fish caught and released immediately do not count toward catch and release limits.
Ontario requires anglers to also hold an Ontario Outdoors Card to buy a fishing license, except for one-day fishing licenses, explains the Ontario government. Disabled Canadian residents and Canadian residents under 18 or over 65 do not need either fishing licences or Outdoors Cards. Aboriginal Canadians do not need fishing licenses when fishing for personal use on treaty or traditional territory. All non-Canadian residents over 18 require fishing licenses and Outdoors Cards for all but the one-day license.
Ontario generally holds two family fishing weeks each year, when anyone may fish without a license, explains OntarioFamilyFishing.com. However, anglers without licenses must still follow Conservation fishing license limits.