Approaches for determining in season TAC increases for 2nd Schedule stocks

Trophia has been contracted by the New Zealand Ministry of Fisheries (MFish) to characterise the inshore fisheries in FMA 2 and identify abundance indices for the key species . The specific objectives for this project include: 1. To examine approaches for determining in-season TAC increases in FLA and RCO stocks. When providing for in-season or pre-season TAC changes it is not enough to simply be able to predict that, based on historic… Read More

Relative abundance of troll-caught albacore

Trophia has been contracted by the New Zealand Ministry of Fisheries (MFish) to determine the relative abundance of juvenile albacore (Thunnus alalunga) in New Zealand fisheries waters. . The specific objectives for this project include: 1. To update standardised CPUE for the west coast albacore troll fishery using data up to the end of the 2007-08 fishing year. Albacore caught by troll in New Zealand waters are juveniles of a single South… Read More

FLA 1 setnet CPUE standardisation

Trophia has been contracted by the New Zealand Ministry of Fisheries (MFish) to determine the relative abundance of flatfish in FLA 1. The specific objective for this project include: 1. To characterise the FLA 1 fishery and update the CPUE analyses for setnet fisheries in FLA 1 using data up to the end of 2007-08 . For management purpose nine species of flatfish (black flounder (BFL), brill (BRI), New Zealand sole (ESO),… Read More

Relative abundance of snapper in SNA 8

Trophia was contracted by the New Zealand Ministry of Fisheries (MFish) to analyses catch an deffort data for snapper in SNA 8. The specific objective for this project was to characterise the SNA 8 fishery and update the CPUE analyses for trawl fisheries in each area of SNA 8 using data up to the end of 2007-08. The snapper fishery is New Zealand’s most valuable inshore finfish fishery by value. SNA 8 is the… Read More

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,… Read More

Adaptive Management Programme proposals and monitoring

Trophia is contracted by the New Zealand Seafood Industry Council (SeaFIC) to assist with analyses required under the the adaptive Management Programme. The adaptive Management Programme (AMP) was introduced in 1991 by the NZ Ministry of Fisheries (MFish) as a basis for varying the levels of Total Allowable Commercial Catch (TACC) of fishstocks for which there is limited information on stock size. New proposals include a descriptive analysis of current knowledge and… Read More

Review paua dive survey methodology

Trophia was contracted by the New Zealand Ministry of Fisheries (MFish) to review the current methodology for surveying paua abundance. The specific objectives for this project include: 1. To undertake a review of the utility of research surveys in stock assessment models for paua and make recommendations on the design and application of future surveys. The status of paua stocks is determined by periodic stock assessments using fishery independent dive surveys to… Read More

Characterisation of the New Zealand tuna fisheries

Trophia has been contracted by the New Zealand Ministry of Fisheries (MFish) to To characterise the New Zealand tuna fisheries, including catches of important associated tuna like species. The specific objectives for this project include: 1. To characterise the New Zealand tuna fisheries for albacore (Thunnus alalunga), bigeye tuna (T. obesus), Pacific bluefin tuna (T. orientalis), skipjack tuna (Katsuwonus pelamis), southern bluefin tuna (Thunnus maccoyii), yellowfin tuna (T. albacares), and swordfish (Xiphias… Read More

Assessing the risk from fishing to yellow-eyed penguins

Trophia has been contracted by the New Zealand Ministry of Fisheries (MFish) to develop a framework for assessing the risk to yellow-eyed penguins Megadyptes antipodes from fisheries incidental mortality in New Zealand fisheries and define the information requirements for managing fisheries related risk. The specific objectives for this project include: 1. To review existing data on yellow-eyed penguin M. antipodes population performance and fisheries information and provide an analysis of the potential… Read More

Monitoring red gurnard in GUR 1

Trophia has been contracted by the New Zealand Ministry of Fisheries (MFish) to characterise the red gurnard (Chelidonichthys kumu) fishery in GUR 1 and undertake a CPUE analysis in GUR 1 . The specific objectives for this project include: 1. To characterise the GUR 1 fishery by analysing existing commercial catch and effort data and data from other sources; and to make recommendations on appropriate methods to monitor or assess the status… Read More