Ministry of Fisheries have got together a couple of officers and created some new Youtube videos that are pretty handy for those getting into fishing and keen to learn a bit more..Check out the links below
A guide to releasing undersized fish http://youtu.be/cQZPRnLZ9ZA
A guide to Crayfish (determining sex, sizing etc.) http://youtu.be/SuH-vP6gROU
A guide to Paua http://youtu.be/B-BVInlTYIk
A guide to netting http://youtu.be/nHXCl-fHyYY
A guide to potting http://youtu.be/p1Zyjxb2Adw