Aquatic Environment and Biodiversity Annual Review 2012

AEBAR 2012: Appendices: Past projects
ECOSYSTEM EFFECTS continued
Project Code Project Title Specific Objectives Status Citation/s
TOH2008-01 Distribution and
abundance of Toheroa
IFA2008-08 Inputs to the Ross Sea
bioregionalisation
ANT2007-01 Biology of fishes in the
toothfish fishery
BEN2007-01 Assessing the effects of
fishing on soft sediment
habitat, fauna, and
processes
BEN2007-05 Risk assessment
framework for assessing
fishing &other
anthropogenic effects on
coastal fisheries
ENH2007-01 Stock enhancement of
blackfoot paua
1. To estimate the size structure and absolute abundance of toheroa on Oreti
Beach, during February 2009. The target c.v. for the estimate of absolute
abundance of legal sized toheroa ( 100 mm shell length) is 20%.
2. To describe changes in the size structure and absolute abundance of toheroa
on Oreti Beach by comparing the results from this work with those from previous
surveys.
3. To estimate the size structure and absolute abundance of toheroa on
Bluecliffs Beach, during February 2009. The target c.v. for the estimate of
absolute abundance of legal sized toheroa ( 100 mm shell length) is 20%.
4. To describe changes in the size structure and absolute abundance of toheroa
on Bluecliffs Beach by comparing the results from this work with those from
previous surveys.
1. To produce one or more benthic invertebrate classifications of the Ross Sea
region;
2. To use fishery catch data to examine spatial distributions of major demersal
fish species;
3. To prepare other biological or environmental spatial data layers for use in the
Ross Sea workshop.
3. To develop an identification guide for observers of benthic invertebrate
species (especially sponges, corals etc) caught in the Ross Sea region fisheries.
1. To design and test sampling and analytical strategies for broad-scale
assessments of habitat and faunal spatial structure and variation across a variety
of seafloor habitats.
2. To design and carry out experiments to assess the effects of bottom trawling
and dredging on benthic communities and ecological processes important to the
sustainability of fishing at scales of relevance to fishery managers.
1. To collate existing information on the distribution, intensity, and frequency of
anthropogenic disturbances in the coastal zone that could be used in a risk
assessment model to estimate their likely aggregate effect on ecosystem
function across habitats and over different scales of ecosystem functioning and
biological organization.
2. To develop a risk assessment framework in conjunction with a variety of
stakeholders and environmental scientists.
1. To assess the survival rate of enhanced paua from introduction into the wild
through to harvest.
2. To assess the genetic diversity of hatchery spawned juvenile paua bred for
enhancement purposes.
3. To assess interactions between introduced and wild paua populations and to
recommend research and monitoring to quantify those impacts that are
potentially adverse.
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Completed Beentjes 2010
Completed Pinkerton et al. 2009a
Completed Parker et al. 2008
Ongoing
analysis
Completed MacDiarmid et al. 2012
Ongoing
analysis