Key research
Trial stock enhancement of black bream (Acanthopagrus
butcheri) in the Blackwood River Estuary, which is based upon the release
of 220,000 juveniles cultured at the ADU (Aquaculture Development Unit, Challenger
TAFE) into this system. Results indicate that cultured black bream released
in 2001 and 2002 have survived well and currently comprise 73 and 91% of these
year classes of black bream in this estuary, respectively. The rate of growth
of cultured fish and the size at which they reach maturity is very similar to
that of the indigenous black bream population. This project has involved
- The collection of baseline data on the biology of black bream of the Blackwood
River Estuary.
- An understanding of the overall fish community in this estuary, and in
particular, the upper reaches in which the black bream mainly reside.
- The culture of juvenile black bream from indigenous brood stock.
- The monitoring of cultured black bream over a 3.5 year period.
- An evaluation of the success of the restocking programme.
A creel survey of this estuary is being conducted by Dr Lynnath
Beckley and Sheryn Prior to assess current levels of recreational fishing activity.
Related publications
Chaplin, J.A., Baudains, G.A., Gill, H.S., McCulloch,
R. and Potter, I.C. 1998. Are assemblages of black bream (Acanthopagrus
butcheri) in different estuaries genetically distinct? International
Journal of Salt Lake Research 6, 303-321. |
Kanandjembo, A.N., Potter, I.C. and Platell, M.E.
2001. Abrupt shifts in the fish community of the hydrologically variable
upper estuary of the Swan River. Hydrological Processes 15, 2503-2517. |
Morgan, D.L., Thorburn. D.C. and Gill, H.S. 2003.
Salinization of south-western Western Australian rivers and the implications
for the inland fish fauna - the Blackwood River, a case study. Pacific
Conservation Biology 9: 161-171. (see
related poster) |
Partridge, G.J., Sarre, G.A., Hall, N.G., Jenkins,
G.I., Chaplin, J. and Potter, I.C. 2003. Comparisons between the growth
of Acanthopagrus butcheri cultured from broodstock from two estuarine
populations that are reproductively isolated and differ markedly in
growth rate. Aquaculture 231, 51-58. |
Potter, I.C. and Hyndes, G.A. 1999. Characteristics
of the ichthyofaunas of south-western Australian estuaries, including
comparisons with holarctic estuaries and estuaries elsewhere in temperate
Australia: A review. Australian Journal of Ecology 24, 395-421. |
Sarre, G.A. and Potter, I.C. 2000. Comparisons
between the reproductive biology of black bream Acanthopagrus butcheri
(Teleostei : Sparidae) in four estuaries with widely differing characteristics.
International Journal of Salt Lake Research 8, 179-210. |
Sarre, G.A., Partridge, G.J., Jenkins, G.I., Potter,
I.C. and Tiivel, D.J. 2003. Factors required for the successful aquaculture
of black bream (Acanthopagrus butcheri) in inland water bodies.
FRDC Final Report (1999/320). |
Sarre, G.A., Platell, M.E. and Potter, I.C. 2000.
Do the dietary compositions of Acanthopagrus butcheri in four
estuaries and a coastal lake vary with body size and season and within
and amongst these water bodies? Journal of Fish Biology 56, 103-122. |
Sarre, G.A. and Potter, I.C. 2001. Variation in
age compositions and growth rates of Acanthopagrus butcheri (Sparidae)
among estuaries: some possible contributing factors. Fishery Bulletin,
U.S. 98, 785-799. |
Valesini, F.J., Potter, I.C., Platell, M.E. and
Hyndes, G.A. 1997. Ichthyofaunas of a temperate estuary and adjacent
marine embayment. Implications regarding choice of nursery area and
influence of environmental changes. Marine Biology 128, 317-328. |
Yap, E.S., Spencer, P.B.S., Chaplin, J.A. and Potter,
I.C. 2000. The estuarine teleost, Acanthopagrus butcheri (Sparidae),
shows low levels of polymorphism at five microsatellite loci. Molecular
Ecology 9, 2225-2226. |
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