In most fisheries, around 90% of the catch comprises valued commercial species. These include target species, as well as other valued species that may get caught along with these, known as bycatch. Strict reporting and catch balancing procedures apply to all quota species. All quota species, including those taken as bycatch, must be landed and reported against the appropriate catch limits. Due to the generally low catch volumes, species outside of the Quota Management System (QMS) are considered to be at low risk of being over fished. However, if a sustainability issue is identified, non-QMS species can be introduced to the QMS under the New Zealand Fisheries Act 1996.