Science reports
Introduction
Research and science contribute to the management of New Zealand’s fish stocks. However, for many of our fisheries there is a dearth of information that can be reliably used to guide the science process. To ensure a balanced management approach the New Zealand Sport Fishing Council (NZSFC) works with a number of agencies and organisations to achieve our goal of “more fish in the water”.
Having abundant fisheries thriving in a healthy marine environment would provide for all New Zealander’s social, environmental, economic and cultural well-being.
As time allows, the NZSFC will add to this collection of research and science papers, reports and data sheets.
Relevant information
2021
Bluefin tuna recreational harvest report. FNZ. 2019-20
Estimated harvest of southern bluefin tuna by recreational fishers in New Zealand waters during 2019-20. Fisheries New Zealand. April 2021.
Snapper trawl survey of Hauraki Gulf-Bay of Plenty 2019-20. FNZ. March 2021
Trawl surveys of the Hauraki Gulf and Bay of Plenty in 2019 & 2020 to estimate the abundance of juvenile snapper. Fisheries NZ. March 2021. NZSFC – The plots on pages 70 & 76 are useful. The recommencement of the Hauraki Gulf and Bay of Plenty trawl survey series may provide potential to monitor, with reasonable levels of precision, the relative abundance of year classes over 2 years, including recruited snapper. In the Hauraki Gulf the estimated snapper biomass was 20, 618 tonnes (CV 13.6%), whereas in the Bay of Plenty it was 2824 tonnes (CV 8.9%), representing increases of 139% and 87% since the last survey in each area respectively.
Blue cod plenary. FNZ. May 2021
Fisheries New Zealand plenary summarising the available data on the blue cod stocks in New Zealand waters. May 2021.
2020
Report. Web camera and ramp surveys of recreational effort. FNZ. July 2020
Web camera and boat ramp survey reporting on activity around the North Island and top of the South Is, from 2005 to 2019. This shows trends in fishing activity and catch rates for key species each year. This is used to monitor recreational fishing between the National Panel Surveys. Fisheries New Zealand. July 2020.
SNA 7 Plenary. FNZ. May 2020
Fisheries New Zealand Plenary of the latest data on snapper stocks in NZ waters. May 2020.
Plenary. Blue cod. FNZ. May 2020
Fisheries New Zealand summary of data and status of blue cod stocks around New Zealand. Plenary document issued in May 2020.
Plenary. Pōrae 1. FNZ. May 2020
Fisheries New Zealand summary of data for Porae. Plenary document issued in May 2020.
Plenary. All pāua stocks. FNZ. May 2020
Plenary document collating science and catch information on New Zealand pāua stocks. Fisheries New Zealand. May 2020.
Gurnard plenary. FNZ. May 2020
Fisheries New Zealand plenary summarising the available data on the red gurnard stocks in NZ waters. May 2020.
Bluefin tuna recreational harvest report. FNZ. 2018-19
Report. Estimated recreational harvest of southern bluefin tuna by recreational fishers in New Zealand during 2018-19. Fisheries New Zealand. January 2020.
2019
Striped marlin catch and CPUE in NZ to 2018-19. FNZ. Dec 2019
Striped marlin catch and catch per unit of effort in the New Zealand sport fishery 2016-17 to 2018-19. NZ Fisheries Assessment Report. Fisheries New Zealand. December 2019
Plenary. All Scallop stocks. FNZ. Nov 2019
Plenary document collating science information on New Zealand scallop stocks. Fisheries New Zealand. November 2019.
Plenary. Northland scallops (SCA 1). FNZ. Nov 2019
Plenary document collating science information on the Northland scallop fishery (SCA 1). Fisheries New Zealand. November 2019.
Report. SNA 1 age composition of commercial catch 2017-18. FNZ. Sep 2019
Age composition of commercial snapper landings in Snapper 1, 2017-18. Fisheries NZ. September 2019. NZSFC – Catch at age distributions for the SNA 1 bottom longline fisheries in 2017-18 have remained broad since the previous sampling year in 2012-13, with good representation across almost all year classes up to 20 years, resulting in high estimates of mean age: East Northland (9.9 years), Hauraki Gulf (10 years), Bay of Plenty (8.7 years). East Northland remains the only stock with a high proportion of snapper 20 years or older.
Bluefin tuna recreational harvest report MPI 2017-18
Report. Recreational harvest of southern bluefin tuna in New Zealand, 2017–18. MPI. March 2019.
Recreational harvest estimates 2017-18. FNZ. 2019
National Panel Survey results. Estimates of recreational catch in 2017-18. Data per region and fish stock. Finfish and shellfish harvest. Follow up survey to the 2011-12 National Panel Survey. Fisheries New Zealand. 2019.
2018
Striped marlin archival tagging research. Paper. Domeier et al. 2018
First marlin archival tagging study suggests new direction for research. Domeier et al. Marine and Freshwater Research. 7 December 2018
2015
How juvenile snapper benefit from their habitat. Parsons et al. Mar 2015
Report. How do juvenile snapper benefit from their nursery habitat? Research article by Parsons et al. 24 March 2015.
Gurnard Plenary MPI. May 2015
Gurnard plenary. MPI. May 2015.
2014
Recreational harvest estimates 2011-12. MPI. Nov 2014
Report. National Panel Survey of marine recreational fishers 2011-12: harvest estimates. MPI. November 2014.
2002
Modification of habitats by trawling. Kaiser et al. Apr 2002
Report. Modification of marine habitats by trawling activities: prognosis and solutions. Kaiser MJ. et al. 23 April 2002.