Fisheries Infosite

Oysters, dredge (except Foveaux Strait) (OYS)
Maori name
Tio (general name for all Oysters (Ngai Tahu))
Scientific name
Ostrea chilensis

2019 2020 2021 2022 2023 2024 2025 
for the 12 month period to 30/09/2025
Commercial use
Reported catch MHR (kg) 0
Commercial allowance TACC (kg) 622,500
Export volume (kg) 0
Estimated domestic consumption (kg) Unknown

Customary use
Customary allowance (kg) 13,000
Customary take (kg) Unknown

Recreational use
Recreational allowance (kg) 13,000
Recreational take (kg) Unknown

Other sources of mortality
Other mortality allowance (kg) 17,500 
Illegal take (kg) Unknown 
Commercial Catch vs. Allowance* - Trend
Reported catch by month* - Trend
*All amounts are shown in thousands of kgs.



Fishstock CodeNameReported comm. catch (kg)TACC (kg)Cust. allow. (kg)Rec. allow. (kg)Target In QMS
OYS1 Dredge Oyster Auckland (East) 1,000 1,000 1,000 Yes Yes
OYS2A Dredge Oyster Part Central (Ea... 1,000 1,000 1,000 Yes Yes
OYS3 Dredge Oyster South-East (Coas... 2,000 2,000 2,000 Yes Yes
OYS4 Dredge Oyster South-East (Chat... 43,500 2,000 2,000 Yes Yes
OYS5A Dredge Oyster Non-Foveaux Stra... 3,000 2,000 2,000 Yes Yes
OYS7 Dredge Oyster Nelson/Marlborou... 505,000 Yes Yes
OYS7A Dredge Oyster West Coast 1,000 1,000 1,000 Yes Yes
OYS7B Dredge Oyster North and West o... 1,000 1,000 1,000 Yes Yes
OYS7C Dredge Oyster Clarence Pt to W... 63,000 1,000 1,000 Yes Yes
OYS8A Dredge Oyster Part Central (Eg... 1,000 1,000 1,000 Yes Yes
OYS9 Dredge Oyster Auckland (West) 1,000 1,000 1,000 Yes Yes
OYS10 Dredge Oyster Kermadec Yes No
OYSET Dredge Oyster Extra Territoria... Yes No
   0 622,500 13,000 13,000