Marine and Freshwater Research

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Origin of dissolved salts in a large, semi-arid groundwater system: Murray Basin, Australia
Marine and Freshwater Research - Tập 52 Số 1 - Trang 41 - 2001
Andrew L. Herczeg, Shawan Dogramaci, Fred Leaney
Hypotheses to explain the source of the 1011 tons of salt in groundwaters of the Murray Basin, south-eastern Australia, are evaluated; these are (a) mixing with original sea water, (b) dissolution of salt deposits, (c) weathering of aquifer minerals and (d) acquisition of solutes via rainfall. The total salinity and chemistry of many groundwater samples are similar to sea-water compositio...... hiện toàn bộ
Active osmoregulation in the Australian Bass, Macquaria novemaculeata (Steindachner), and the golden perch, Macquaria ambigua (Richardson) (Percichthyidae)
Marine and Freshwater Research - Tập 38 Số 6 - Trang 771 - 1987
JS Langdon
The Australian bass, M. novemaculeata, and the golden perch, M. ambigua, differed in the osmoregulatory response of the gills to salinity change. Bass displayed lower gill Na+/K+-transporting ATPase and succinate dehydrogenase activities in salt water than in fresh water, whereas golden perch displayed the opposite pattern. This difference may indicate that the golden perch has evolved fur...... hiện toàn bộ
Hydrodynamics of a tidal creek-mangrove swamp system.
Marine and Freshwater Research - Tập 31 Số 4 - Trang 431 - 1980
Eric Wolanski, M Jones, J. S. Bunt
A mathematical model is proposed for the movement of water and sediments in Coral Creek. a tidal creek surrounded by thickly vegetated mangrove wamps in Missionary Bay at the northern end of Hinchinbrook Island, northern Queensland. It is shown that a net down-stream longitudinal current through mangrove swamps exists and is responsible for rapidly carrying away organic detritus (e.g. fall...... hiện toàn bộ
Effects of sediment copper on a tube-dwelling estuarine amphipod, Paracorophium excavatum
Marine and Freshwater Research - Tập 52 Số 7 - Trang 1007 - 2001
Islay D. Marsden, Carol Hee Ting Wong
Amphipods, Paracorophium excavatum, were exposed for 10 days to copper-spiked sediments in the concentration range 3–84 µg g –1 dry wt of sediment. Percent emergence was low, ranging from 0.18% to 2.1%, but increased with exposure time and with copper concentration. Amphipod mortality increased with exposure time and sediment copper concentration, following a linear relationship; the Cu 1...... hiện toàn bộ
Diets and trophic guilds of demersal fishes of the south-eastern Australian shelf
Marine and Freshwater Research - Tập 52 Số 4 - Trang 537 - 2001
Cathy Bulman, Franziska Althaus, Xuejia He, NJ Bax, Alicia K. Williams
A total of 8200 stomach samples was collected from 102 fish species caught by trawl or gillnet during research surveys on the south-eastern Australian shelf from 1993 to 1996. Diet compositions were analysed based on percentages of wet weight of prey. Of the total fish examined, 70 species had sufficient stomach samples (i.e. >10) for further analysis. Ten trophic guilds were identifie...... hiện toàn bộ
Trophic relationships between itinerant fish and crab larvae in a temperate Australian saltmarsh
Marine and Freshwater Research - Tập 57 Số 2 - Trang 193 - 2006
Debashish Mazumder, Neil Saintilan, Robert J. Williams
Comparisons of zooplankton inputs and outputs for a temperate Australian saltmarsh demonstrate a substantial contribution of crab larvae to the ebbing tide water, particularly during the cooler months. Few crab larvae were present in the incoming tide (mean abundance 4 m−3), whereas many crab larvae were present in the outgoing water (mean abundance 2124.63 m−3). Stomach content analysis o...... hiện toàn bộ
Abundance, Diet and predators of juvenile banana prawns, Penaeus merguiensis, in a tropical mangrove estuary
Marine and Freshwater Research - Tập 39 Số 4 - Trang 467 - 1988
A. I. Robertson
Sampling of Penaeus merguiensis de Man with a variety of nets in several microhabitats of a small mangrove-lined estuary near Townsville on seven occasions during 1985 and 1986 captured only one adult prawn. Juveniles of 1-21 mm carapace length (CL) entered the mangrove forest at high tide throughout the year in concentrations up to 0.45 m-3. The mean density of juveniles (3-23 mm CL) in s...... hiện toàn bộ
Coral assemblages and physico-chemical characteristics of the Whitsunday Islands: evidence of recent community changes
Marine and Freshwater Research - Tập 50 Số 5 - Trang 427 - 1999
Robert van Woesik, T. Tomascik, Stephen Blake
Benthic communities were assessed and 22 environmental variables were monitored at seven leeward localities (L1ŒL7) in the Whitsunday Islands, Queensland, Australia. L1 was near the Proserpine and O’Connell river mouths and L7 ~80 km north of the river mouths. Distinct physico Œchemical and biological gradients were evident. Sparse scleractinian coral communities, dominated by faviids, Mo...... hiện toàn bộ
Comparisons between surface, barotropic and abyssal flows during the passage of a warm-core ring
Marine and Freshwater Research - Tập 39 Số 6 - Trang 697 - 1988
PJ Mulern, JH Filloux, F. E. M. Lilley, Nathaniel L. Bindoff, I. J. Ferguson
A comparison is made of results for barotropic, surface and abyssal flows during the formation and passage of a warm-core ring in the East Australian Current. The barotropic velocities are estimated from sea-floor measurements of the horizontal electric field, which is induced by water motion. Values for the surface and near-bottom velocities are obtained generally by more traditional meth...... hiện toàn bộ
A review of nitrogen and phosphorus export to waterways: context for catchment modelling
Marine and Freshwater Research - Tập 57 Số 8 - Trang 757 - 2006
John J. Drewry, Lachlan Newham, Richard Greene, Anthony J. Jakeman, Barry Croke
This paper reviews knowledge of nitrogen and phosphorus generation from land use and export to waterways, including studies relevant to Australia. It provides a link between current and future modelling requirements, and the context for incorporation of this knowledge into catchment models for use by catchment managers. Selected catchment models used by catchment managers are reviewed, and...... hiện toàn bộ
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