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Report
PDF (6.73 MB)
This report assesses changes in aquatic and littoral vegetation in the Goolwa Channel and western Lake Alexandrina from 2009 to 2011, following the construction and breaching of the Clayton regulator. Monitoring captured significant shifts in plant communities in response to sali...
Authors: Gehrig, S., Nicol, J. and Bucater, LYear: 2011
Report
PDF (4.35 MB)
This report presents the first comprehensive summary of interactions between South Australian commercial fisheries and threatened, endangered or protected species (TEPS) over the 2007/08 to 2009/10 period. Based on voluntary reporting, 432 events involving 1,403 animals were reco...
Authors: Knight, M.A. and Vainickis, A.AYear: 2011
Report
PDF (0.58 MB)
This study examines how fish communities responded to changes in water levels under the Goolwa Channel Water Level Management Plan (GCWLMP) during a period of extreme drought followed by significant natural inflows. Managed water levels in 2009/10 led to strong recruitment of non...
Authors: C. Bice and B. ZampattiYear: 2011
Report
PDF (0.89 MB)
This study explored how changes in water flow affect the movement and spawning of Murray cod and golden perch in the Chowilla Anabranch system. Using radio transmitters and larval sampling, researchers found that Murray cod exhibited flexible spawning behaviour during both low an...
Authors: Leigh, S.J. and Zampatti, B.PYear: 2011
Report
PDF (0.89 MB)
This fishery assessment evaluates the status of the Southern Zone abalone resource in South Australia for the 2009/10 period, focusing on blacklip and greenlip abalone. The majority of blacklip catch comes from non-fish-down areas, where CPUE is at record highs and exploitation r...
Authors: Mayfield, S. and Hogg, A.Year: 2011
Report
PDF (2.31 MB)
This report assesses the status of South Australia's Blue Crab Fishery up to July 2010, focusing on Spencer Gulf and Gulf St Vincent. In Spencer Gulf, stock indicators suggest the strongest position since quota introduction, with high legal-size abundance and efficient harvesting...
Authors: C.D. Dixon and G.E. HooperYear: 2011
Report
PDF (1.54 MB)
This status report evaluates the sustainability of key quota species in the Commonwealth Small Pelagic Fishery (SPF), including blue mackerel, jack mackerel, redbait, and Australian sardine. Using DEPM-based biomass estimates, fishery statistics, and Management Strategy Evaluatio...
Authors: T.M. Ward, J. Lyle, J.P. Keane, G. Begg, P. Hobsbawn, A.R. Ivey, R. Sakabe and M.A. SteerYear: 2011
Report
PDF (1.18 MB)
This report documents a proof-of-concept trial of a Wetland Carp Separation Cage (WCSC) at Lake Bonney, South Australia, aimed at reducing invasive carp populations during environmental water allocations. The cage was installed in 2010 following significant carp aggregations duri...
Authors: Dr Leigh ThwaitesYear: 2011
Report
PDF (2.79 MB)
This report explores the ecological dynamics of the Chowilla Anabranch System, the largest remaining undeveloped floodplain in the lower Murray River. It investigates native fish and aquatic plant communities between 2004 and 2007, with a focus on species like Murray cod and gold...
Authors: B. P. Zampatti, S. J. Leigh and J. M. NicolYear: 2011
Report
PDF (3.01 MB)
This report presents a comprehensive ecological assessment of the South Australian Sardine Fishery, with the goal of developing performance indicators to support ecosystem-based fisheries management. It identifies key predator species dependent on sardines and evaluates their for...
Authors: Goldsworthy, S.D., Page, B., Rogers, P. and Ward, TYear: 2011