Aquatic Environment and Biodiversity Annual Review 2012

AEBAR 2012: Appendices: Past projects
ECOSYSTEM EFFECTS continued
Project Code Project Title Specific Objectives Status Citation/s
ENV2009-04 Trends in relative
mesopelagic biomass
using time series of
acoustic backscatter data
from trawl surveys
ENV2009-07 Habitats of particular
significance for
fisheriesmanagement:
kaipara harbour
GMU2009-01 Spatial Mixing of GMU1
using Otolith
Microchemistry
IPA2009-11 Trophic studies publication
of review
ANT2008-03 Ecosystem effects of
fishing in the Ross Sea
AQE2008-02 Review of ecological
effects of farming shellfish
and other species
1. To evaluate relative changes in abundance of mesopelagic fish and other
biological components from acoustic records collected during Chatham Rise and
Sub-Antarctic trawl surveys.
2. To explore links between trends in mesopelagic biomass and climate variables
and variations, and condition indices of commercial species in the Chatham Rise
and Sub-Antarctic areas.
1. Collate and review information on the role and spatial distribution of habitats in
the Kaipara Harbour that support fisheries production.
2. Assess historical, current, and potential anthropogenic threats to these
habitats that could affect fisheries values, including fishing and land-based
threats.
3. Design and implement cost-effective habitat mapping and monitoring surveys
of habitats of particular significance for fisheries management in the Kaipara
Harbour.
1. To determine the level of spatial mixing and connectivity of grey mullet (Mugil
cephalus) populations using otolith microchemistry.
2. To collect and analyse the chemical composition of grey mullet otoliths.
3. To analyse the otoliths collected under Objective 1 to determine if the samples
can be spatially separated.
1. To publish the comprehensive review of New Zealand-wide trophic studies
completed in 2000 that was prepared by NIWA.
To evaluate the VMEIO classification accuracy of observers, identify potential
causes for taxonomic confusion, and make recommendations for improvements
in the classification guide, observer training, and in the data collection protocols
1. To collate and review information on the ecological effects of farming mussels
(Perna canaliculus), including offshore mussel farming and spat catching, in the
New Zealand marine environment.
2. To collate and review information on the ecological effects of farming oysters
in the New Zealand marine environment.
3. To collate and review information on the ecological effects of farming species
other than mussels (Perna canaliculus), oysters, and finfish, in the New Zealand
marine environment.
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Completed O'Driscoll et al. 2011
Ongoing
analysis
Ongoing
analysis
Completed Stevens et al. 2011
Completed Parker et al. 2009b; 2010
Completed Keeley et al. 2009