Aquatic Environment and Biodiversity Annual Review 2012

AEBAR 2012: Appendices: Past projects
PROTECTED SPECIES continued
Project Code Project Title Specific Objectives Status Citation/s
SRP2010-03 Fur Seal interactions with
a SED excluder device
SRP2010-05 Fur seal interaction with
an SLED excluder device
IPA2009-09 Sea Lion bioenergetics
modelling
IPA2009-16 Preliminary impact
assessment of NZ sea lion
interaction with SLEDS
IPA2009-
19/20
No project
number
Level 2 seabird risk
assessment rerun
External review of NZ sea
lion bycatch necropsy data
and methods
PRO2009-01A Abundance & distribution
of Hector's &
maui'sdolphins (5 year
project)
1. Fur seal interactions with SED excluder device (Dr J Lyle) Completed Lyle 2011
• Using a series of 10-15 impact tests at a maximum collision speed of 5 or 6 ms-
1, develop a “HIC map” for the SLED grid to enable the consequences of
collisions with different parts of the grid by sea lions of different head masses to
be predicted (scaling values (for eq 3) will include -1/3, -2/3, and -3/4)
• Using a small number of collision tests, verify that the HIC for a glancing blow
can be predicted with sufficient accuracy by resolving vectors
• Calculate the maximum possible sensitivity to different boundary conditions
using the relative masses of the SLED grid and sea lion heads
• Clarify in the final research report that undertaking tests in air (as opposed to
underwater) should not affect the results
1. To review and collate data on growth, metabolism, diet and reproductive
parameters of NZ sea lions or, if data are inexistent, of other sea lions species
2. To analyse the energy density of various NZ sea lion prey items
3. To incorporate the data acquired in objectives 1. and 2. into a bioenergetics
model to estimate the energy and food requirements of NZ sea lions
1. Preliminary impact assessment of New Zealand sea lion interactions with
SLEDs
1. To examine the risk of incidental mortality from commercial fishing for 64
seabird species in New Zealand trawl and longline fisheries
The primary purposes of this review were to determine whether, in the opinion of
a group of independent experts:
- the interpretation of necropsy findings and trauma classification system used by
Dr Wendi Roe are valid
- sea lions recovered from trawl nets have sustained clinically significant trauma
- some or all of the sea lions exiting through SLEDs are likely to survive
1. To estimate the distribution of the South Coast South Island Hector’s dolphin
sub-population in both winter and summer.
2. The work for this sub-project was subsequently extended to include data
collection necessary to estimate abundance.
327
Completed Ponte et al. 2011
Completed Meynier 2010
Completed Ponte et al. 2010
Completed Richard et al. 2011
Completed Roe 2010a
Completed Clement & Mattlin 2010