Stock assessment of TRE 7

Trophia has been contracted by the New Zealand Ministry of Fisheries (MFish) to conduct a stock assessment for trevally (Pseudocaranx dentex) in TRE 7, including estimating biomass and sustainable yields. The specific objectives for this project include:

1. To update the descriptive analysis of the TRE 7 fishery up to the end of the 2007/08 fishing year.

2. To review and summarise the historical biological and other relevant data (including length frequency, sex ratio, age frequency, and reproductive condition data) for trevally collected from the shed sampling programme and other sources (e.g. historical survey work) and the use of these data as inputs into a stock assessment.

3. To update the standardised CPUE indices for TRE 7 up to the end of the 2007/08 fishing year.

4. To conduct a stock assessment, including estimating biomass and sustainable yields for TRE 7