Estimates of absolute current and reference biomass are not available.
John dory is principally a bycatch species and, as such, estimates of MCY based on catch statistics
are uncertain. Under such conditions it is difficult to determine whether changes in the reported
catches indicate actual changes in the stocks or simply changes in the catches of the target species.
In 1994–95, the TACC for JDO 1 was slightly overcaught for the first time since the start of the
QMS. The 1994–95 landings follows a consistent trend of increasing catches, probably due to
increased targeting for John dory. However, other factors, such as increased abundance or changing
fishing practices, may also have contributed to JDO 1 catch increases but trawl surveys in sub-areas
of JDO 1 reveal no apparent trend in John dory biomass. Since 1994–95, the TACC for JDO 1 has
been undercaught.
For JDO 1 recent catch levels and the current TACC are likely to be sustainable at least in the shortterm.
It is not known if recent catch levels and the current TACC are sustainable in the long-term. For
all other JDO stocks it is not known if the recent catch levels and current TACCs are sustainable. For
all Fishstocks it is unknown if recent catches or the current TACCs are at levels that will allow the
stocks to move towards a size that will support the MSY
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Plenary (JDO_07)
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Plenary (JDO_06)
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Title: Fisheries Assessment Plenary May 2017: Stock Assessments and Stock Status
35_JDO_2017.pdf
(1.4 MB)
The May 2017 Fisheries Plenary Report summarises fishery, biological, stock assessment and stock status information for 83 of New Zealand’s commercial fish species or species groups in a series of Working Group or Plenary reports. Each species or species group is split into 1-10 stocks for management purposes. JDO
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Title: Fisheries Assessment Plenary May 2016: Stock Assessments and Stock Status
35_JDO_2016_FINAL.pdf
(1.7 MB)
The May 2016 Fisheries Plenary Report summarises fishery, biological, stock assessment and stock status information for 83 of New Zealand’s commercial fish species or species groups in a series of Working Group or Plenary reports. Each species or species group is split into 1-10 stocks for management purposes. JDO
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The May 2015 Fisheries Plenary Report summarises fishery, biological, stock assessment and stock status information for 82 of New Zealand’s commercial fish species or species groups in a series of Working Group or Plenary reports. Each species or species group is split into 1-10 stocks for management purposes. JDO
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The May 2014 Fisheries Plenary Report summarises fishery, biological, stock assessment and stock status information for 82 of New Zealand’s commercial fish species or species groups in a series of Working Group or Plenary reports. Each species or species group is split into 1-10 stocks for management purposes. Volume 2 covers the John Dory to Red Gurnard.
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Estimates of absolute current and reference biomass are not available.
John dory is principally a bycatch species and, as such, estimates of MCY based on catch statistics are uncertain. Under such conditions it is difficult to determine whether changes in the reported catches indicate actual changes in the stocks or simply changes in the catches of the target species.
In 1994–95, the TACC for JDO 1 was slightly overcaught for the first time since the start of the QMS. The 1994–95 landings followed a consistent trend of increasing catches, probably due to increased targeting for John dory. However, other factors, such as increased abundance or changing fishing practices, may also have contributed to JDO 1 catch increases but trawl surveys in sub-areas of JDO 1 reveal no apparent trend in John dory biomass. Since 1994–95, the TACC for JDO 1 has been undercaught.
For JDO 1 recent catch levels and the current TACC are likely to be sustainable at least in the shortterm. It is not known if recent catch levels and the current TACC are sustainable in the long-term. For all other JDO stocks it is not known if the recent catch levels and current TACCs are sustainable. For all Fishstocks it is unknown if recent catches or the current TACCs are at levels that will allow the stocks to move towards a size that will support the MSY.
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Title: Fisheries Assessment Plenary May 2014: Stock Assessments and Stock Status. John Dory (JDO)
35_JDO_2014 FINAL.pdf
(1.5 MB)
The May 2014 Fisheries Plenary Report summarises fishery, biological, stock assessment and stock status information for 82 of New Zealand’s commercial fish species or species groups in a series of Working Group or Plenary reports. Each species or species group is split into 1-10 stocks for management purposes. John Dory (JDO)
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This document summarises the most recent New Zealand fishery, biological, stock assessment and stock status information about john dory.
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