Fisheries Infosite

Plenary (JMA_FINAL 08)

Filename
JMA_FINAL 08.pdf

Link to file
JMA_FINAL 08.pdf (505.6 kb)

Abstract

 

Of the three jack mackerel species taken in JMA 7, recent information on stock status is only

available for

 

T. declivis. The current TACC is approximately 50% greater than the historical MCYbasedT. declivis and T. novaezelandiae combined. These estimates of yield do notT. murphyi which comprise an important part of the catches from JMA 7 in some years.T. declivis did not indicate sustainability concerns with this0, so the stock is probably above BMSY. The historical estimate of B0 (see MCY section) isT. novaezelandiae and T. murphyi in JMA 7 is not known, nor is the sustainability ofT. declivis) are sustainable at this time.

yield estimates for

include

The 2007 preliminary assessment for

component of JMA 7 at that time though there are uncertainties in the assessment relating to the catch

histories and abundance indices. The preliminary stock assessment indicates that current biomass is

53% of B

similar to that from the 2007 assessment.

The status of

current removals of these species.

Overall it cannot be determined if the TAC or current removals are sustainable for JMA 7, but it is

likely that the removals from one component of the fishery (

Given increased catches in recent years continued monitoring of the catch composition is strongly

recommended as is further work on potential abundance indices.



Document date
Thursday, 15 May 2008
Document type
V 1.3
File format
Adobe PDF
File size
505.6 kb
Reference number
JMA_FINAL 08
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Uploaded date
Friday, 7 November 2008

Search tags
Species: JMA;
Stock: JMA1; JMA10; JMA3; JMA7; JMAET;

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