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Fisheries Assessment Plenary November 2018: Albacore to Yellowfin Tuna
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Plenary (ALB_07)
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The 2nd meeting of the Western and Central Pacific Fisheries Commission Scientific Committee
provided the following summary on the status of south Pacific albacore:
“A stock assessment was undertaken during 2005 and is the first since 2003. An
examination of catch trends in 2005 indicated that total catches of albacore were
relatively stable over the period from 1960 to 1995, but that they have increased in
recent years. . The key conclusions of the stock assessment were similar to 2003, i.e.
that over fishing is not occurring (Fcurrent / FMSY <1) and the stock is not in an overfished
state (Bcurrent / BMSY >1). Overall, fishery impacts on the total biomass are
low (10%), although considerably higher impacts occur for the portion of the
population vulnerable to longline.
Current catch levels from the South Pacific albacore stock appear to be sustainable and
yield analyses suggest increases in fishing mortality and yields are possible. However,
given the age-specific mortality of the longline fleets, any significant increase in effort
would reduce CPUE to low levels with only moderate increases in yields. CPUE
reductions may be more severe in areas of locally concentrated fishing effort.
The South Pacific albacore assessment shows that current levels of catch and effort are
sustainable. While future inc
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Title: Fisheries Assessment Plenary, November 2016: stock assessments and stock status
01-ALB_2016_DRAFT.pdf
(1.3 MB)
The November 2016 Fisheries Plenary Report summarises fishery, biological, stock assessment and stock status information for 16 of New Zealand’s commercial fish species or species groups in a series of Working Group or Plenary reports.
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Title: Fisheries Assessment Plenary November 2015: Stock Assessments and Stock Status
01-ALB_2015_FINAL.pdf
(1.3 MB)
The November 2015 Fisheries Plenary Report summarises fishery, biological, stock assessment and stock status information for 16 of New Zealand’s commercial fish species or species groups in a series of Working Group or Plenary reports. Volume 1 covers Introductory to rays bream.
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Title: Fisheries Assessment Plenary November 2014: Stock Assessments and Stock Status
01-ALB_2014_FINAL.pdf
(1.2 MB)
The November 2014 Fisheries Plenary Report summarises fishery, biological, stock assessment and stock status information for 17 of New Zealand’s commercial fish species or species groups in a series of Working Group or Plenary reports. Albacore (ALB)
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The November 2014 Fisheries Plenary Report summarises fishery, biological, stock assessment and stock status information for 17 of New Zealand’s commercial fish species or species groups in a series of Working Group or Plenary reports. Volume 1 covers the Introductory Sections to Ray’s Bream.
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Title: Fisheries Assessment Plenary November 2013: Stock Assessments and Yield Estimates
001_ALB_November_2013.pdf
(952.6 kb)
The November 2013 Fisheries Plenary Report summarises fishery, biological, stock assessment and stock status information for 19 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. Albacore (ALB).
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The mid-year November 2012 Fisheries Plenary Report summarises fishery, biological, stock assessment and stock status information for 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. The November Plenary includes Working Group and Plenary summaries for species that operate on different management cycles to those summarised in the May Plenary Report. It includes Highly Migratory Species (HMS), rock lobster, scallops and dredge oysters, covering 17 species in total.
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Year of Most Recent Assessment: A full stock assessment was conducted in 2008 and a comparative assessment was conducted in 2009 (WCPFC-SC5-2009/SA-WP-06). In addition to this, an updated CPUE analysis was undertaken in 2009.
Reference Points
Target: B>BMSY and F<FMSY
Soft Limit: Not established by WCPFC; but evaluated using HSS default of 20%SB0.
Hard Limit: Not established by WCPFC; but evaluated using HSS default of 10%SB0.
Status in relation to Target Likely B>BMSY and F<FMSY
Status in relation to Limits Unlikely B<BMSY and F>FMSY
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This report presents the status of the fish stocks for highly migratory species, rock lobster and toothfish resulting from research and stock assessments up to 2010.
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This report presents the status of the fish stocks for highly migratory species, rock lobster and toothfish resulting from research and stock assessments up to 2010.
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The New Zealand catches represent 10% of the total. The stock is presently above the level necessary to produce the maximum sustainable yield. The WCPFC SC reported that “The current assessment indicates lower levels of stock size and maximum sustainable yield which appear to be more realistic than previous assessments. There is uncertainty regarding the sustainability of the south Pacific albacore stock and the SC recommended that catches of south Pacific albacore remain at current levels considering the current rates of fishing mortality on adult albacore.
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