Download - Mulloway Stock Assessment Report 2013/14
Mulloway Stock Assessment
Report 2013/14SUMMARY PRESENTATION
Fish assemblages in the Coorong
A/Prof Qifeng Ye, SARDI Aquatic Sciences
Luciana Bucater, David Short and Neil Wellman
Chris Bice, Brenton Zampatti and Jason Earl
Black bream
Greenback flounder
Yelloweye mullet
Sandy sprat
Smallmouthed hardyhead
Mulloway
Coorong
fishes
Lamprey
Congolli
Australian salmon
Australian herring Australian anchovy
King george whiting
Kelpfish
Toad fish2007–2010(drought)
‘Marine stragglers’
Distribution
E
NL
SL
Drought Period
Recruitment/Abundance
2006/07 2007/08 2008/09 2009/10 2010/11 2011/12 2012/13 2013/14
Abu
nd
an
ce (
fish.h
our-1
)
0.0
0.2
0.4
0.6
0.8
1.0
2.04.06.08.0
10.012.014.016.0
Dis
charg
e (
GL.m
on
th-1
)
0
500
1000
1500
2000
2500
Data: Bice & Zampatti
Bony herring
Australian smelt
Sandy sprat
Lagoon goby
Congolli
Pouched lamprey
‘Freshwater’ ‘Diadromous’
‘Estuarine’
‘Marine migrant’
2010–2013 (flow)
Mulloway
Distribution
E
NL
SL
2010–2013 (flow)
Recruitment/Abundance
Data: Bice & Zampatti
2006/07 2007/08 2008/09 2009/10 2010/11 2011/12 2012/13 2013/14
Ab
un
da
nce
(fish
.ho
ur-1
)
0.0
0.2
0.4
0.6
0.8
1.0
2.04.06.08.0
10.012.014.016.0
Dis
ch
arg
e (
GL
.mo
nth
-1)
0
500
1000
1500
2000
2500
Summary
• Dynamic fish assemblages in the Coorong
– Flow, salinity and connectivity key drivers
• Freshwater inflows promote diversity, abundance,
recruitment and distribution in estuarine-dependent fish
• High variability of estuarine system
– long-term data needed to support management and policy
decisions
- This project was funded by the DEWNR and
is part of the SA Government’s Murray
Futures program, funded in turn by the
Australian Government’s Water for the Future
initiative, and is supported by the MDBA
Living Murray program.
- SARDI staff Jason Earl, Juan Livore, David
Fleer, Greg Ferguson, Hanru Wang, Arron
Strawbridge, Craig Noell and George Giatas.
- DEWNR staff Paul McEvoy, Adrienne Rumbelow, Rebecca Quin, Adam
Watt, Kirsty Wedge, Jason Higham, Ann-Marie Jolley and Liz Barnett for
support and project management.
- Lakes and Coorong fishers for sample supply.
- Ngarrindjeri Regional Authority (NRA) to provide
field assistance (funded by the MDBA via IPP).
Acknowledgements
- Baseline work was funded by the FRDC,
CSIRO WfHC Flagship and MDBA through
SAMDB NRMB.