Marine and Freshwater Research
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* Dữ liệu chỉ mang tính chất tham khảo
Sắp xếp:
Origin of dissolved salts in a large, semi-arid groundwater system: Murray Basin, Australia
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... ...
Marine and Freshwater Research - Tập 52 Số 1 - Trang 41 - 2001
Hydrodynamics of a tidal creek-mangrove swamp system.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... ...
Marine and Freshwater Research - Tập 31 Số 4 - Trang 431 - 1980
Effects of sediment copper on a tube-dwelling estuarine amphipod, Paracorophium excavatum
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... ...
Marine and Freshwater Research - Tập 52 Số 7 - Trang 1007 - 2001
Abundance, Diet and predators of juvenile banana prawns, Penaeus merguiensis, in a tropical mangrove estuarySampling 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... ...
Marine and Freshwater Research - Tập 39 Số 4 - Trang 467 - 1988
Land-use effects on water quality in an intensively managed catchment in the Australian humid tropicsThe minimization of environmental degradation that might arise as a result of agricultural production requires a detailed knowledge of the off-site effects of rural land use. This paper reports the results of an assessment of the effect of land use on water quality in the lower part of the catchment of the Herbert River, an intensively managed part of the humid tropics in north Queensland,... ...
Marine and Freshwater Research - Tập 53 Số 5 - Trang 931 - 2002
Dinoflagellates in the Australian Region.In this paper, the taxonomy of the dinoflagellates found in Australian
waters is given, and the species concept as applied to the group is discussed.
It is suggested that the Linnaean species concept cannot be strictly applied to
a group which has, as a whole, no known sexual process and of which the vast
majority of forms has not been cultivated.
The seasonal variation and fluctuations of... ...
Marine and Freshwater Research - Tập 5 Số 2 - Trang 171 - 1954
Short cyst-dormancy period of an Australian isolate of the toxic dinoflagellate Alexandrium catenella
Cyst beds of Alexandrium catenella (a causative organism
of Paralytic Shellfish Poisoning) are widespread in New South Wales coastal
and estuarine waters (temperature range 13–25˚C). Cysts produced by
cultured isolates exhibited dormancy periods at 17˚C as short as
28–55 days. This contrasts with the usually longer dormancy requirements
of temperate populations of A. catenella from Japan ... ...
Marine and Freshwater Research - Tập 49 Số 5 - Trang 415 - 1998
Predation by southern sea lions (Otaria flavescens) on artisanal fishing catches in UruguaySouthern sea lions (Otaria flavescens) forage in coastal fishery grounds in shallow waters, where they interact with coastal fishing activities. The main objective of this research was to evaluate the predation of southern sea lions on artisanal fishery catches and thus determine whether interactions with sea lions affected catches. Between July 1997 and March 1998, we observed 53 fishing ... ...
Marine and Freshwater Research - Tập 53 Số 8 - Trang 1161 - 2002
Adaptive management for water quality planning - from theory to practice
Adaptive management has been promoted as a structured approach to learning in response to the uncertainty associated with managing complex systems. We developed and tested a protocol to guide an adaptive approach to water quality management in north-eastern Australia. The protocol articulates a framework for documenting uncertainties and performance expectations, negotiating feedback and... ...
Marine and Freshwater Research - Tập 60 Số 11 - Trang 1189 - 2009
Threatening processes and conservation management of endemic freshwater fish in the Mediterranean basin: a reviewMediterranean endemic freshwater fish are among the most threatened biota in the world. The Mediterranean basin has experienced substantial reductions in precipitation and water availability, which will worsen with climate change. Current water policy is directed to increase water-supply demands, especially for agriculture, and not to improve water-use efficiency and implement integrated a... ...
Marine and Freshwater Research - Tập 62 Số 3 - Trang 244 - 2011
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