There are no new assessment results from 2008 for these oreo stocks.
Black oreo
The stock assessment of OEO 4 black oreo was considered unreliable and was not accepted. However,
abundance indices from standardised CPUE analysis suggests that there was a decline in the stock through the 1980s and 1990s. It is not known if recent catch levels or the current TACC are sustainable or if they are at levels that will allow the stock to move towards a size that will support the maximum
sustainable yield.
Smooth oreo
The OEO 4 smooth oreo stock assessment was updated in 2007. Three final runs are reported for the
stock.
The model estimates of mid-year mature biomass in 2005
-06 was 57% (51–62) of mature B0 and
suggests that there is not an immediate sustainability issue with this stock. However, there are
considerable uncertainties associated with this assessment described in section 4.3.6 above. The main
uncertainty is that substantial proportions of the abundance in each acoustic survey are attributed to
layer marks which are generally not fished by the commercial fishery. Also, standardised CPUE in the larger east fishery has declined in recent years.
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