Little is known about the status of blue mackerel stocks and no estimates of current and reference
biomass, or yield, are available for any blue mackerel area. It is not known if recent catch levels are
sustainable or at levels that will allow the stocks to move towards a size that will support the MSY.
EMA 1
For EMA 1, the stability of the age composition data and the large number of age classes that comprise
the catches suggests that blue mackerel may be capable of sustaining current commercial fishing
mortality at least in the short term.
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Plenary (EMA_07)
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Plenary (EMA_06)
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Title: Fisheries Assessment Plenary May 2017: Stock Assessments and Stock Status
09_EMA_2017.pdf
(652.0 kb)
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. EMA
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Title: Fisheries Assessment Plenary May 2016: Stock Assessments and Stock Status
09_EMA_2016_FINAL.pdf
(517.6 kb)
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. EMA
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Title: Fisheries Assessment Plenary May 2015: Stock Assessments and Stock Status
09_EMA_2015_FINAL.pdf
(506.4 kb)
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.EMA.
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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 1 covers the Introductory Sections to Jack Mackerel.
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Little is known about the status of blue mackerel stocks and no estimates of current and reference biomass, or yield, are available for any blue mackerel area. It is not known if recent catch levels are sustainable or at levels that will allow the stocks to move towards a size that will support the MSY.
EMA 1
For EMA 1, the stability of the age composition data and the large number of age classes that comprise the catches suggests that blue mackerel may be capable of sustaining current commercial fishing mortality, at least in the short-term.
EMA 7
The broad spread of age classes seen in the catch from the trawl fishery is not consistent with the large decline in CPUE from 1999 to 2005. The Working Group agreed that it was is premature to make conclusions about trends in abundance based on the CPUE indices, due to the significant area/year interactions in the analysis.
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