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Articoli di riviste sul tema "Freshwater phytoplankton Ecology South Australia"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 1 febbraio 2022

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1

Jasonsmith, J. F., W. Maher, A. C. Roach, and F. Krikowa. "Selenium bioaccumulation and biomagnification in Lake Wallace, New South Wales, Australia." Marine and Freshwater Research 59, no. 12 (2008): 1048. http://dx.doi.org/10.1071/mf08197.

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Selenium concentrations were measured in water, sediments and organisms inhabiting a freshwater coal power station cooling reservoir. Se concentrations found were: water, 1.9 ± 2 μg L–1; sediment, 7 ± 1 μg g–1; phytoplankton, 3.4 μg g–1; zooplankton, 5.3 μg g–1; epiphytic algae, 1.3 ± 0.2 μg g–1; benthic algae, 8 ± 2 μg g–1; macrophyte leaves, 2.7–2.8 μg g–1; macrophyte roots, 0.5–6.5 μg g–1; detritus, 10 μg g–1; Oligochaeta, 11 μg g–1; Corbiculidae, 1.1 μg g–1; Insects, 3.7–8.3 μg g–1; Gastropoda, 3.2 μg g–1; Crustacea, 3.1–6 μg g–1; whole fish, 2.2–13 μg g–1; and fish liver, 134–314 μg g–1.

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2

Webster, Ian T., and Graham P. Harris. "Anthropogenic impacts on the ecosystems of coastal lagoons: modelling fundamental biogeochemical processes and management implications." Marine and Freshwater Research 55, no. 1 (2004): 67. http://dx.doi.org/10.1071/mf03068.

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This paper presents a biogeochemical model of a coastal lagoon intended to be representative of lagoons occurring along the south-east and south-west coasts of Australia. Many of these lagoons are threatened by increased nutrient loads because of land use change, by alterations to their freshwater inflows and by modification to their tidal flushing regimens. The model simulates the biogeochemical response of the lagoon to nutrient (nitrogen) loading and includes nutrient transformation processes in the sediments, as well as in the water column. The paper focuses on the response of primary prod

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3

Hawkins, PR, LE Taplin, LJ Duivenvoorden, and F. Scott. "Limnology of oligotrophic dune lakes at Cape Flattery, North Queensland." Marine and Freshwater Research 39, no. 4 (1988): 535. http://dx.doi.org/10.1071/mf9880535.

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Physical, chemical and biotic attributes of 16 lakes and ponds in the siliceous dunefields of Cape Flattery, in the humid tropics of Australia, have been investigated. The dune lakes are similar to those of dunefields in south-eastern Queensland, with very low to low conductivity (62-338 �S cm-1), low pH (3.9-6.8), and low to high humic content (gilvin 0.0-31.0 g440 m-1). These lakes are apparently not perched above the local water table. The ionic compositions of all lakes were very similar, with NaCl predominating and with very low concentrations of Mg, Ca, K, and SO4. Bicarbonate was absent

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4

Davis, Jenny A., Megan McGuire, Stuart A. Halse, David Hamilton, Pierre Horwitz, Arthur J. McComb, Ray H. Froend, Michael Lyons, and Lien Sim. "What happens when you add salt: predicting impacts of secondary salinisation on shallow aquatic ecosystems by using an alternative-states model." Australian Journal of Botany 51, no. 6 (2003): 715. http://dx.doi.org/10.1071/bt02117.

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Alternative-states theory commonly applied, for aquatic systems, to shallow lakes that may be dominated alternately by macrophytes and phytoplankton, under clear-water and enriched conditions, respectively, has been used in this study as a basis to define different states that may occur with changes in wetland salinity. Many wetlands of the south-west of Western Australia are threatened by rapidly increasing levels of salinity as well as greater water depths and permanency of water regime. We identified contrasting aquatic vegetation states that were closely associated with different salinitie

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5

Merrick, CJ, and GG Ganf. "Effects of zooplankton grazing on phytoplankton communities in Mt Bold Reservoir, South Australia, using enclosures." Marine and Freshwater Research 39, no. 4 (1988): 503. http://dx.doi.org/10.1071/mf9880503.

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Enclosure experiments demonstrated that zooplankton grazing changed the composition of the phytoplankton community in Mt Bold Reservoir. Phytoplankton biomass as measured by chlorophyll a did not change within the enclosures but changed across the experiments in response to zooplankton grazing. The chlorophyll a : phaeophytin a ratio did not reflect zooplankton grazing activity. Phytoplankton species richness and diversity did not change but the frequencies of many individual phytoplankton taxa differed in response to zooplankton grazing. Neither taxonomic identity nor phytoplankton size as me

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6

Gouws, Gavin, Barbara A. Stewart, and Savel R. Daniels. "Phylogeographic structure of a freshwater crayfish (Decapoda:Parastacidae:Cherax preissii) in south-western Australia." Marine and Freshwater Research 57, no. 8 (2006): 837. http://dx.doi.org/10.1071/mf05248.

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Although phylogeographic patterns of freshwater decapods elsewhere in Australia are well documented, little is known of the phylogeography and biogeography of the endemic freshwater fauna of south-western Australia. Here, the phylogeographic structure of a freshwater crayfish, Cherax preissii Erichson, 1846, was investigated to determine contemporary and historical patterns of gene flow and to examined evolutionary and biogeographical scenarios. Allozyme and cytochrome c oxidase subunit I mitochondrial DNA data were collected from 15 populations, sampled across the known C. preissii distributi

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7

Bowling, LC. "Optical properties, Nutrients and Phytoplankton of freshwater Coastal Dune Lakes in South-east Queensland." Marine and Freshwater Research 39, no. 6 (1988): 805. http://dx.doi.org/10.1071/mf9880805.

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Gilvin was the main attenuator of photosynthetically available radiation (PAR) in 26 freshwater coastal dune lakes, despite most being only slightly humic (range 0.000-27.866 m-1, median = 1.088 m-1). Most were also non-turbid [range 0.27-3.00 nephelometric turbidity units (NTU), median = 0.77 NTU] and had low concentrations of chlorophyll a (range 0.212-15.869 �g I-1, median = 3.285 �g I-1). Accordingly there was only slight to moderate attenuation of PAR in most lakes, the majority having mean downwelling vertical attenuation coefficients of less than 1.0 m-1. However, Secchi depths indicate

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8

Casanova, Michelle T., Annabel Douglas-Hill, Margaret A. Brock, Monika Muschal, and Michael Bales. "Farm ponds in New South Wales, Australia: relationship between macrophyte and phytoplankton abundances." Marine and Freshwater Research 48, no. 4 (1997): 353. http://dx.doi.org/10.1071/mf96131.

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The physical, chemical and biological characteristics of 65 farm ponds in the Northern Tablelands and Central Western Slopes regions of New South Wales, Australia, were similar to those recorded for Australian ponds in other studies. The strongest single relationship between physico-chemical characteristics and biological characteristics was for high abundance of phytoplankton, low abundance of macrophytes, high turbidity, and high nutrient concentrations in ponds on granitic soil. Variation among the ponds was such that no other relationship was significant. Five groups of ponds were discerne

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9

Lough, Janice M., and Alistair J. Hobday. "Observed climate change in Australian marine and freshwater environments." Marine and Freshwater Research 62, no. 9 (2011): 984. http://dx.doi.org/10.1071/mf10272.

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The consequences of human activities increasing concentrations of atmospheric greenhouse gases are already being felt in marine and terrestrial environments. More energy has been trapped in the global climate system, resulting in warming of land and sea temperatures. About 30% of the extra atmospheric carbon dioxide has been absorbed by the oceans, increasing their acidity. Thermal expansion and some melting of land-based ice have caused sea level to rise. Significant climate changes have now been observed across Australia and its coastal seas. The clearest signal is the warming of air and sea

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10

Lymbery, A. J., M. Hassan, D. L. Morgan, S. J. Beatty, and R. G. Doupé. "Parasites of native and exotic freshwater fishes in south-western Australia." Journal of Fish Biology 76, no. 7 (April 13, 2010): 1770–85. http://dx.doi.org/10.1111/j.1095-8649.2010.02615.x.

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11

Kobayashi, Tsuyoshi, and Anthony G. Church. "Role of nutrients and zooplankton grazing on phytoplankton growth in a temperate reservoir in New South Wales, Australia." Marine and Freshwater Research 54, no. 5 (2003): 609. http://dx.doi.org/10.1071/mf02025.

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The role of nitrogen (N) and phosphorus (P) and zooplankton grazing on the growth of a phytoplankton community was investigated at different times in the Ben Chifley reservoir. In situ nutrient enrichment bioassays (n�= 12) indicated that phytoplankton growth was limited by P in 33% of experiments, by both N and P in 25% of experiments and no limitation was found in 42%. The hypothesis that N or P limitation occurred when ambient N : P ratios were different from the Redfield ratio was supported in 33% of bioassay experiments, suggesting that ambient N : P ratios do not always correctly indicat

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12

Beatty, Stephen J., David L. Morgan, and Howard S. Gill. "Reproductive biology of the large freshwater crayfish Cherax cainii in south-western Australia." Marine and Freshwater Research 54, no. 5 (2003): 597. http://dx.doi.org/10.1071/mf02077.

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The reproductive biology of Cherax cainii was studied in an impoundment dam in south-western Australia using histological examination of ovarian development (previous studies describing the reproductive biology of freshwater crayfish have relied solely on macroscopic descriptions of gonadal development). Spawning occurred between August and November and peaked in late August and September, with the percentage of berried females increasing from 50% in September to 96% in November before declining to 11% in December. Juveniles were released from berried females between late November and early De

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13

Entwisle, Timothy J., and John Huisman. "Algal systematics in Australia." Australian Systematic Botany 11, no. 2 (1998): 203. http://dx.doi.org/10.1071/sb97006.

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Documentation of the algal flora of Australia had its beginnings in the seventeenth century and has progressed sporadically but with increasing vigour ever since. Earlier studies dealing with Australian algae were undertaken by overseas phycologists working with specimens collected during scientific voyages or short visits. Recent floristic studies have concentrated on specific regions, isolated localities, or particular taxonomic or ecological groupings. The algal flora of Australia is unevenly documented: northern Australia remains largely uncollected for seaweeds and marine phytoplankton, f

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14

Harvey, MS. "Pezidae, a new freshwater mite family from Australia (Acarina : Halacaroidea)." Invertebrate Systematics 3, no. 6 (1989): 771. http://dx.doi.org/10.1071/it9890771.

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A new halacaroid family, Pezidae, is erected for the new genus Peza, with two new species Peza ops (type species) and Peza daps. P. ops has been widely collected in south-eastern Australia, while P. daps is known only from a single female taken from the gill chamber of a burrowing crayfish, Engaeus fultoni Smith & Schuster (Crustacea : Decapoda : Parastacidae), in the Otway Ranges, Victoria. During winter and spring, females of both species apparently attach their eggs to their hind legs. The Pezidae is regarded as the sister-group of the remaining Halacaroidea.

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15

Li, Qian P., Weiwen Zhou, Yinchao Chen, and Zhengchao Wu. "Phytoplankton response to a plume front in the northern South China Sea." Biogeosciences 15, no. 8 (April 27, 2018): 2551–63. http://dx.doi.org/10.5194/bg-15-2551-2018.

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Abstract. Due to a strong river discharge during April–June 2016, a persistent salinity front, with freshwater flushing seaward on the surface but seawater moving landward at the bottom, was formed in the coastal waters west of the Pearl River estuary (PRE) over the northern South China Sea (NSCS) shelf. Hydrographic measurements revealed that the salinity front was influenced by both the river plume and coastal upwelling. On shipboard nutrient-enrichment experiments with size-fractionation chlorophyll a measurements were taken on both sides of the front as well as in the frontal zone to diagn

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16

Dove, A. D. M., T. H. Cribb, S. P. Mockler, and M. Lintermans. "The Asian fish tapeworm, Bothriocephalus acheilognathi, in Australian freshwater fishes." Marine and Freshwater Research 48, no. 2 (1997): 181. http://dx.doi.org/10.1071/mf96069.

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Bothriocephalus acheilognathi was collected from 13 of 38 carp (Cyprinus carpio), 2 of 4 mosquito fish (Gambusia holbrooki), and 2 of 12 western carp gudgeon (Hypseleotris klunzingeri ) in waterways of the Australian Capital Territory and New South Wales. This is the first record of this parasite in Australia, and its presence in H. klunzingeri is a new host record. B. acheilognathi presumably arrived in Australia with its introduced fish hosts and has since crossed into native fishes. This cestode may infect other native fish species, a potential that is significant given the high pathogenici

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17

Rochelle-Newall, E. J., V. T. Chu, O. Pringault, D. Amouroux, R. Arfi, Y. Bettarel, T. Bouvier, et al. "Phytoplankton diversity and productivity in a highly turbid, tropical coastal system (Bach Dang Estuary, Vietnam)." Biogeosciences Discussions 8, no. 1 (January 18, 2011): 487–525. http://dx.doi.org/10.5194/bgd-8-487-2011.

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Abstract. The factors controlling estuarine phytoplankton diversity and production are relatively well known in temperate systems. Less however is known about the factors affecting phytoplankton community distribution in tropical estuaries. This is surprising given the economic and ecological importance of these large, deltaic ecosystems, such as are found in South East Asia. Here we present the results from an investigation into the factors controlling phytoplankton distribution and phytoplankton-bacterial coupling in the Bach Dang Estuary, a sub-estuary of the Red River system, in Northern V

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18

Foissner, W., and PJ O'Donoghue. "Morphology and infraciliature of some freshwater ciliates (Protozoa : Ciliophora) from Western and South Australia." Invertebrate Systematics 3, no. 6 (1989): 661. http://dx.doi.org/10.1071/it9890661.

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Thirteen new or little-known freshwater ciliates from Perth, W.A., and Adelaide, S.A., are described: Urotricha furcata Schewiakoff, 1892; Coleps amphacanthus Ehrenberg, 1833; Fuscheria nodosa Foissner, 1983; Lacrymaria australis, sp. nov.; Acineria uncinata Tucolesco, 1962; Litonotus lamella (Mnller, 1773); Loxophyllum australe, sp. nov.; Naxella australis, sp. nov.; Microthorax australis, sp. nov.; Blepharisma americanum (Suzuki, 1954); Stenosemella lacustris, sp. nov.; Oxytricha australis, sp. nov.; and Urosomoida perthensis, sp. nov. Descriptions are based on live observations, protargol a

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19

Beatty, Stephen J., David L. Morgan, Mahmoud Rashnavadi, and Alan J. Lymbery. "Salinity tolerances of endemic freshwater fishes of south-western Australia: implications for conservation in a biodiversity hotspot." Marine and Freshwater Research 62, no. 1 (2011): 91. http://dx.doi.org/10.1071/mf10100.

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Secondary salinisation represents an important threat to terrestrial and aquatic habitats throughout the world. In south-western Australia, widespread salinisation of waterways has caused large range reductions in the highly endemic freshwater fish fauna. We hypothesised that differences in the distributions of three fish species within the salinised Blackwood River would be related to their salinity tolerances. Galaxias occidentalis was widespread throughout the catchment, whereas Nannoperca vittata was restricted to the main channel and freshwater tributaries of the lower catchment, and Nann

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20

Walsh, CJ, and BD Mitchell. "The Freshwater shrimp Paratya australiensis (Kemp, 1917) (Decapoda:Atyidae) in estuaries of south-westren victoria, Australia." Marine and Freshwater Research 46, no. 6 (1995): 959. http://dx.doi.org/10.1071/mf9950959.

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All life-cycle stages of Paratya australiensis, formerly thought to occur predominantly in freshwater environments, were found to be common in estuaries of western Victoria. Highest densities of larvae were found below the halocline in stable, open, well developed, salt-wedge estuaries. Larvae developed in the salt wedge, and juveniles recruited to littoral weed beds. Adults were most abundant in low salinities among submerged, leafy macrophytes. Although recruitment to estuaries permits the avoidance of fatal drift of larvae to sea, tolerance of saline conditions may permit rare dispersal of

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21

Hanson, Christine E., Charitha B. Pattiaratchi, and Anya M. Waite. "Seasonal production regimes off south-western Australia: influence of the Capes and Leeuwin Currents on phytoplankton dynamics." Marine and Freshwater Research 56, no. 7 (2005): 1011. http://dx.doi.org/10.1071/mf04288.

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Temporal primary production dynamics were investigated off south-western Australia, where the summer upwelling regime of the Capes Current was compared with early winter conditions characterised by strengthened near-shore Leeuwin Current flow. Seasonal upwelling in this region sourced nitrate levels of ≥1 μm from the nutricline at the base of the Leeuwin Current’s mixed layer, with total water column production reaching a maximum of ~950 mg C m−2 day−1 in the Capes Current. Stable isotope signatures of particulate matter indicated that productivity off south-western Australia was heavily relia

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22

Hallegraeff, GM, and SW Jeffrey. "Annually recurrent diatom blooms in spring along the New South Wales coast of Australia." Marine and Freshwater Research 44, no. 2 (1993): 325. http://dx.doi.org/10.1071/mf9930325.

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Blooms of phytoplankton (100-280 mg chlorophyll a m-1) occur on the continental shelf off Sydney in the spring of most years. These sudden chlorophyll increases (more than 10 times the normal algal biomass) are due to short-lived diatom blooms that evolve in a predictable sequence from small chainforming species (Nitzschia, Thalassiosira) to large centric species (Lauderia, Rhizosolenia) and eventually to large dinoflagellates (Protoperidinium). Two research cruises (October 1981, September 1984) were conducted to define the longshore extent of this phenomenon. Diatom blooms were widespread al

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23

Koehn, John D., Scott M. Raymond, Ivor Stuart, Charles R. Todd, Stephen R. Balcombe, Brenton P. Zampatti, Heleena Bamford, et al. "A compendium of ecological knowledge for restoration of freshwater fishes in Australia." Marine and Freshwater Research 71, no. 11 (2020): 1391. http://dx.doi.org/10.1071/mf20127.

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Many freshwater fishes are imperilled globally, and there is a need for easily accessible, contemporary ecological knowledge to guide management. This compendium contains knowledge collated from over 600 publications and 27 expert workshops to support the restoration of 9 priority native freshwater fish species, representative of the range of life-history strategies and values in south-eastern Australia’s Murray–Darling Basin. To help prioritise future research investment and restoration actions, ecological knowledge and threats were assessed for each species and life stage. There is considera

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24

Baker, Andrew M., Jane M. Hughes, John C. Dean, and Stuart E. Bunn. "Mitochondrial DNA reveals phylogenetic structuring and cryptic diversity in Australian freshwater macroinvertebrate assemblages." Marine and Freshwater Research 55, no. 6 (2004): 629. http://dx.doi.org/10.1071/mf04050.

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Freshwater catchments of south-east Australia possess generally rich and diverse macroinvertebrate faunas, although the genetic structuring of these assemblages is poorly known. In this study, we assessed mitochondrial phylogenetic structure within four genera of macroinvertebrates from the Sydney Water Supply Catchment, south-east Australia: Euastacus (parastacid crayfish), Cheumatopsyche (hydropsychid caddisflies), Atalophlebia (leptophlebiid mayflies) and Paratya (atyid shrimp), with a view to prioritising areas of high diversity for future conservation efforts. We found extremely divergent

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25

Kefford, Ben J., Carolyn G. Palmer, and Dayanthi Nugegoda. "Relative salinity tolerance of freshwater macroinvertebrates from the south-east Eastern Cape, South Africa compared with the Barwon Catchment, Victoria, Australia." Marine and Freshwater Research 56, no. 2 (2005): 163. http://dx.doi.org/10.1071/mf04098.

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Salinity is rising in many southern African and Australian rivers with unknown effects on aquatic organisms. The extent of spatial variation, at any scale, in salt tolerances of aquatic organisms is unknown, so whether data from one location is applicable elsewhere is also unknown. The acute tolerances (72-h median lethal concentration (LC50)) to sea salt of 49 macroinvertebrate taxa from the south-east Eastern Cape (SEEC), South Africa were compared with those of 57 species from the Barwon Catchment, Victoria, Australia. The mean LC50 values from both locations were similar (Barwon: 31 and SE

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26

Lintermans, Mark. "A review of on-ground recovery actions for threatened freshwater fish in Australia." Marine and Freshwater Research 64, no. 9 (2013): 775. http://dx.doi.org/10.1071/mf12306.

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Freshwater fish are a highly threatened group and recovery of these threatened species is an increasingly difficult ecological and social challenge. There are many different on-ground recovery actions available to managers, but no synthesis of what, how or why these recovery actions have been deployed. The present paper reviews 428 reported on-ground recovery actions from a survey of practitioners of threatened freshwater-fish recovery in Australia. Recovery actions were grouped into 12 categories, with the most commonly utilised recovery categories being harvest control, translocation, habita

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27

KING, RACHAEL A. "Two new genera and species of chiltoniid amphipods (Crustacea: Amphipoda: Talitroidea) from freshwater mound springs in South Australia." Zootaxa 2293, no. 1 (November 19, 2009): 35–52. http://dx.doi.org/10.11646/zootaxa.2293.1.2.

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Amphipods within the family Chiltoniidae are an abundant yet taxonomically poorly known member of Australian freshwater habitats. With only four species known from Australia, the group is inadequately defined and marked by taxonomists as difficult to identify. Recent molecular analyses of chiltoniids from mound springs in South Australia detected several distinct species, prompting a morphological revision of material from the central and southern Lake Eyre region. Clear groups defined by unique combinations of morphological characters (focusing on uropodal, coxal, male gnathopod 2, and antenn

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Entwisle, TJ. "A monograph of Vaucheria (Vaucheriaceae, Chrysophyta) in south-eastern mainland Australia." Australian Systematic Botany 1, no. 1 (1988): 1. http://dx.doi.org/10.1071/sb9880001.

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Twenty-five species of Vaucheria have been found in south-eastern Australia, from both freshwater and saline habitats. As many collections were sterile, the study of plants in culture was necessary for identification as well as for the evaluation of taxonomic characters. A reassessment of the sectional classification has led to the raising of the subsections Racemosae (Walz) Heering and Sessiles (Walz) Heering to sectional level. Of the nine sections of the genus recognised, six are represented in south-eastern Australia. A key has been provided to all sections and species found during the stu

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Shao, N. F., S. T. Yang, Y. Sun, Y. Gai, C. S. Zhao, F. Wang, X. Yin, and B. Dong. "Assessing aquatic ecosystem health through the analysis of plankton biodiversity." Marine and Freshwater Research 70, no. 5 (2019): 647. http://dx.doi.org/10.1071/mf18342.

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Healthy plankton communities are the foundation of many freshwater food webs. Their biodiversity is often used to directly reflect the health of the rivers. Globally, river ecosystem restoration is a critical issue and many freshwater ecosystems, especially in cities, are degraded because of intensive human activities. This is true for Jinan, China’s first pilot city for the Water Ecological Civilisation Project. The outcomes of aquatic ecosystem restoration in the city will directly affect the success or failure of the construction of aquatic ecological civilisations across the entire country

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Boon, Paul I. "Are mangroves in Victoria (south-eastern Australia) already responding to climate change?" Marine and Freshwater Research 68, no. 12 (2017): 2366. http://dx.doi.org/10.1071/mf17015.

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The distribution and productivity of mangroves is directly affected by a wide range of climatic drivers, including temperature, frost, rainfall, evaporation and storm activity, which, in turn, influence a suite of secondary drivers, including changes in freshwater run-off and sediment supply, groundwater dynamics and inter-species competitiveness. The highest-latitude expression of mangroves globally is at Millers Landing, Victoria (38°45′S), and because the vigour and productivity of mangroves across much of Victoria is thought to be limited by low winter temperatures and the incidence and se

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Zeidler, Wolfgang, and M. Adams. "Revision of the Australian crustacean genus of freshwater crayfish Gramastacus Riek (Decapoda : Parastacidae)." Invertebrate Systematics 3, no. 7 (1989): 913. http://dx.doi.org/10.1071/it9890913.

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The Australian freshwater crayfish genus Gramastacus, previously consisting of two species known only from type localities, is revised utilising newly collected material ranging from The Grampians, Victoria, to the south-east, of South Australia. Morphological and biochemical studies demonstrate that Granzastacus is monotypic with G. insolitus Riek, 1972 the only species. Morphological comparisons between Granmstacus and Geocharax are also made, and although Gramastacus is similar to Geocharax, sufficient differences were found to uphold the generic status of Granlastacus. G. insolitus is a sw

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Lemley, DA, JB Adams, and JL Largier. "Harmful algal blooms as a sink for inorganic nutrients in a eutrophic estuary." Marine Ecology Progress Series 663 (March 31, 2021): 63–76. http://dx.doi.org/10.3354/meps13655.

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Phytoplankton-mediated nutrient fluxes typically provide only pulsed relief to adjacent coastal waters during the productive period, with nutrient export increasing in the absence of substantial phytoplankton biomass. On the warm temperate coastline of South Africa, the Sundays Estuary is characterised by highly regulated freshwater inflow patterns, nutrient-enriched conditions, and resident harmful algal blooms (HABs). Given these attributes, the study objective was to investigate the effect of these phytoplankton blooms on fluvial inorganic nutrient dynamics. To assess uptake, we analysed in

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Bayly, IAE. "Distinctive aspects of the zooplankton of large lakes in Australasia, Antarctica and South America." Marine and Freshwater Research 46, no. 8 (1995): 1109. http://dx.doi.org/10.1071/mf9951109.

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Abstract (sommario):

Not only has the degree of species-level cosmopolitanism amongst zooplanktonic organisms been considerably overestimated, but differences between the different classical biogeographic regions (established from terrestrial studies) occur at supra-specific levels as high as family or even suborder. The Centropagidae, and particularly the genus Boeckella, are found in New Zealand, most of Australia, southern and high altitude regions of South America, and around the periphery of Antarctica. The biogeography and ecology of this family is discussed in detail. Most predaceous families of Cladocera a

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34

Faulks, Leanne K., Dean M. Gilligan, and Luciano B. Beheregaray. "Phylogeography of a threatened freshwater fish (Mogurnda adspersa) in eastern Australia: conservation implications." Marine and Freshwater Research 59, no. 1 (2008): 89. http://dx.doi.org/10.1071/mf07167.

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Abstract (sommario):

Phylogeography is a field that has the potential to provide an integrative approach to the conservation of threatened species. The southern purple spotted gudgeon, Mogurnda adspersa, is a small freshwater fish that was once common and widely distributed throughout south-eastern Australia. However, habitat alteration has dramatically reduced the size and the range of Murray–Darling Basin populations, which are now classified as endangered. Here patterns of genetic structure and evolutionary history of M. adspersa in southern Queensland and the Murray–Darling Basin are elucidated using three reg

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35

Crook, David A., Jed I. Macdonald, and Tarmo A. Raadik. "Evidence of diadromous movements in a coastal population of southern smelts (Retropinninae: Retropinna) from Victoria, Australia." Marine and Freshwater Research 59, no. 7 (2008): 638. http://dx.doi.org/10.1071/mf07238.

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Abstract (sommario):

Understanding the migratory behaviour of fishes is critical to the conservation and management of fish assemblages in coastal rivers. We analysed the otolith chemical signatures of smelt, Retropinna sp., from inland and coastal populations in mainland south-eastern Australia to determine whether individuals within coastal populations of the species were diadromous. Assessments of otolith chemical composition combined with water chemistry data were used to make inferences about the migration histories of individual fish. A proportion of the smelt collected from the freshwater reaches of a coast

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36

Jerry, Dean R. "Phylogeography of the freshwater catfish Tandanus tandanus (Plotosidae): a model species to understand evolution of the eastern Australian freshwater fish fauna." Marine and Freshwater Research 59, no. 4 (2008): 351. http://dx.doi.org/10.1071/mf07187.

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Abstract (sommario):

The geologically complex eastern Australian coastal margin supports the highest taxonomic diversity of freshwater fishes on the continent. However, mechanisms leading to coastal biogeographic patterns are poorly understood. A 399-bp fragment of the hypervariable mtDNA control region was sequenced from populations of eel-tailed catfish (Tandanus tandanus) to determine their phylogeographic structure and to relate this to proposed biogeographic mechanisms and landform evolution. Genetic structure in Tandanus is complex, with haplotypes clustering into three lineages: a phylogenetically distant,

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37

Close, Paul G., Tom J. Ryan, David L. Morgan, Stephen J. Beatty, and Craig S. Lawrence. "First record of ‘climbing’ and ‘jumping’ by juvenile Galaxias truttaceus Valenciennes, 1846 (Galaxiidae) from south-western Australia." Australian Journal of Zoology 62, no. 2 (2014): 175. http://dx.doi.org/10.1071/zo14004.

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Abstract (sommario):

Upstream migration of juvenile stages of temperate Australian amphidromous fish typically coincides with seasonally low river discharge when hydraulic (e.g. cascades) and physical (e.g. rock bars) barriers may be common. The ability to ‘climb’ or ‘jump’ may be expected to assist in negotiating low-flow barriers; however, it is presumed to be limited to a few native Australian freshwater fishes. Juvenile stages of Galaxias truttaceus Valenciennes, 1846 were observed ‘climbing’ and ‘jumping’ to successfully negotiate a low, vertical weir wall during their upstream recruitment migrations in south

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38

Tanimura, A., S. Kawaguchi, N. Oka, J. Nishikawa, S. Toczko, K. T. Takahashi, M. Terazaki, T. Odate, M. Fukuchi, and G. Hosie. "Abundance and grazing impacts of krill, salps and copepods along the 140°E meridian in the Southern Ocean during summer." Antarctic Science 20, no. 4 (March 18, 2008): 365–79. http://dx.doi.org/10.1017/s0954102008000928.

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Abstract (sommario):

AbstractAbundance and grazing impacts of krill, salps and herbivorous copepods were investigated in Antarctic waters along the 140°E meridian, south of Australia, during the summers of 2002 and 2003. North of the Southern Boundary of the Antarctic Circumpolar Current (SB-ACC), macrozooplankton comprised species of Salpa thompsoni and large herbivorous copepods, while the area south of the SB-ACC was numerically dominated by Euphausia superba or E. crystallorophias. North of the SB-ACC, the estimate of grazing impact revealed that krill, salps and copepods, Calanoides acutus, Calanus propinquus

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39

Horwitz, Pierre, and Mark Adams. "The systematics, biogeography and conservation status of species in the freshwater crayfish genus Engaewa Riek (Decapoda : Parastacidae) from south-western Australia." Invertebrate Systematics 14, no. 5 (2000): 655. http://dx.doi.org/10.1071/it99020.

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Abstract (sommario):

This paper presents a review of the systematics of freshwater crayfish species in the genus Engaewa Riek, endemic to south-western Australia. Allozyme electrophoresis of six allopatric populations of Engaewa and several outgroup taxa at 17 loci was initially used to identify four distinct genetic groups within the genus. Morphological characters were then used to establish within and between species boundaries more precisely. Five species were recognised, comprising the existing species E. subcoerulea Riek, E. reducta Riek, and E. similis Riek, plus two new species, E. pseudoreducta, sp. nov.

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40

Millar, AJK, and GT Kraft. "Catalogue of marine and freshwater red algae (Rhodophyta) of New South Wales, including Lord Howe Island, south-western Pacific." Australian Systematic Botany 6, no. 1 (1993): 1. http://dx.doi.org/10.1071/sb9930001.

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Abstract (sommario):

All published, and many unpublished, records of marine and freshwater red algae from the New South Wales mainland and Lord Howe Island are brought together for the first time. Of the 381 species listed (in 14 orders, 41 families and 174 genera), some 22% have New South Wales type localities (58 from the mainland and 24 from Lord Howe Island) and the remainder are either typically southern Australian, Queensland, or much more widely distributed. Twenty-five percent (100) of the species and 20% (35) of the genera are newly recorded for the New South Wales coast, one genus (Callithamniella) is ne

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41

Crook, David A., Paul Reich, Nick R. Bond, Damien McMaster, John D. Koehn, and P. Sam Lake. "Using biological information to support proactive strategies for managing freshwater fish during drought." Marine and Freshwater Research 61, no. 3 (2010): 379. http://dx.doi.org/10.1071/mf09209.

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Abstract (sommario):

This paper provides an assessment of the biological attributes of fish species in south-eastern Australia and rates their potential risk from the impacts of drought. We used scientific literature and expert opinion to conduct a semiquantitative assessment of attributes considered to influence species resistance and resilience to drought for 15 freshwater fish species found in south-eastern Australia. We also present a conceptual framework to guide management of fish populations during drought. The framework focuses on (1) quantifying spatial variation in the severity of drought impacts on part

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42

WILDE, G. R., and W. SAWYNOK. "Growth rate and mortality of Australian bass, Macquaria novemaculeata, in four freshwater impoundments in south-eastern Queensland, Australia." Fisheries Management and Ecology 12, no. 1 (February 2005): 1–7. http://dx.doi.org/10.1111/j.1365-2400.2004.00412.x.

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43

ROGERS, D. CHRISTOPHER. "Taxonomic certification versus the scientific method." Zootaxa 3257, no. 1 (April 4, 2012): 66. http://dx.doi.org/10.11646/zootaxa.3257.1.5.

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Abstract (sommario):

Over the last 30 years or so there has been an increasing need for organism identification services. This has been the positive result of increased habitat monitoring, particularly as regards water quality. Organism diversity and community structure are used as an overall meter stick of habitat health and functionality, in a method referred to as biomonitoring. To meet the organism identification need, private and government laboratories specializing in identification work have been developed, particularly in North America, Europe and Australia. I myself have worked in this industry and was em

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44

PERKINS, ANDREW J. "Hydrocotyle simulans (Araliaceae), a new perennial species from south-eastern Australia." Phytotaxa 437, no. 2 (March 25, 2020): 66–72. http://dx.doi.org/10.11646/phytotaxa.437.2.3.

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Abstract (sommario):

Hydrocotyle simulans, a new perennial species from south-eastern Australia, is here described with associated illustration, photographic images and distribution map. The new species is restricted mostly to freshwater swamps in coastal areas of south-eastern South Australia, southern Victoria and to the Furneaux Group of islands, off the north-eastern coast of Tasmania. Hydrocotyle simulans resembles both H. plebeya and H. pterocarpa, in having orbicular-cordate to reniform leaves, hydathodes along leaf lamina margins and broadly ovate to orbicular stipules with entire margins. It differs from

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45

Sturm, K., Z. Yuan, B. Gibbes, U. Werner, and A. Grinham. "Methane and nitrous oxide sources and emissions in a subtropical freshwater reservoir, South East Queensland, Australia." Biogeosciences 11, no. 18 (September 30, 2014): 5245–58. http://dx.doi.org/10.5194/bg-11-5245-2014.

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Abstract (sommario):

Abstract. Reservoirs have been identified as an important source of non-carbon dioxide (CO2) greenhouse gases with wide ranging fluxes for reported methane (CH4); however, fluxes for nitrous oxide (N2O) are rarely quantified. This study investigates CH4 and N2O sources and emissions in a subtropical freshwater Gold Creek Reservoir, Australia, using a combination of water–air and sediment–water flux measurements and water column and pore water analyses. The reservoir was clearly a source of these gases as surface waters were supersaturated with CH4 and N2O. Atmospheric CH4 fluxes were dominated

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46

Sturm, K., Z. Yuan, B. Gibbes, and A. Grinham. "Methane and nitrous oxide sources and emissions in a subtropical freshwater reservoir, south east Queensland, Australia." Biogeosciences Discussions 10, no. 12 (December 11, 2013): 19485–508. http://dx.doi.org/10.5194/bgd-10-19485-2013.

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Abstract (sommario):

Abstract. Reservoirs have been identified as an important source of non-CO2 greenhouse gases, especially methane (CH4). This study investigates CH4 and nitrous oxide (N2O) sources and emissions in a subtropical freshwater reservoir Gold Creek Dam, Australia using a combination of water–atmosphere and sediment–water flux measurements, water column sampling and pore water analysis. The reservoir was clearly a net source as surface waters were supersaturated with CH4 and N2O. CH4 flux rates were one to two orders of magnitude higher than N2O rates when expressed as CO2 equivalents. Atmospheric CH

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47

Muhammad, Buhari Lawan, Yongsik Sin, and Jang-Seu Ki. "DNA metabarcoding reveals multiple co-occurring species in Stephanodiscus spring diatom blooms in a temperate freshwater river." Marine and Freshwater Research 72, no. 9 (2021): 1353. http://dx.doi.org/10.1071/mf20254.

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Abstract (sommario):

Spring diatom blooms dominate the annual cycle of phytoplankton abundance in temperate freshwater systems. Many researchers have questioned whether severe blooms are attributable to a single species and warrant the identification of similar, concurrently occurring organisms. Here, we investigated spring diatom blooms in a temperate freshwater system (Yeongsan River, South Korea) that is thought to predominantly include the diatom Stephanodiscus hantzschii. Water samples were collected from four different sites during the blooms that occurred in March 2015. We analysed physicochemical and biolo

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48

Pusey, BJ, and DHD Edward. "Structure of fish assemblages in waters of the Southern Acid Peat Flats, South-western Australia." Marine and Freshwater Research 41, no. 6 (1990): 721. http://dx.doi.org/10.1071/mf9900721.

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Abstract (sommario):

The structure of freshwater fish assemblages in waters of the southern acid peat flats of south-western Australia was monitored over a 3-year period. Nine locations were sampled during the course of the study; they differed in the permanence of the water supply and the degree of isolation from permanent water. The climate of the region is a Mediterranean one of high predictability (i.e. pronounced seasonality and low interannual variation). Consequently, temporary aquatic habitats were also temporally predictable in incidence and duration and were colonized by a comparatively rich fish fauna.

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49

Taylor, Graham, Francoise Gasse, P. H. Walker, and P. J. Morgan. "The palaeoecological and palaeoclimatic significance of Miocene freshwater diatomite deposits from southern New South Wales, Australia." Palaeogeography, Palaeoclimatology, Palaeoecology 77, no. 2 (March 1990): 127–43. http://dx.doi.org/10.1016/0031-0182(90)90129-u.

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50

Crook, David A., Wayne M. Koster, Jed I. Macdonald, Simon J. Nicol, Chris A. Belcher, David R. Dawson, Damien J. O'Mahony, Danny Lovett, Adam Walker, and Lucas Bannam. "Catadromous migrations by female tupong (Pseudaphritis urvillii) in coastal streams in Victoria, Australia." Marine and Freshwater Research 61, no. 4 (2010): 474. http://dx.doi.org/10.1071/mf09170.

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Abstract (sommario):

Understanding migratory requirements is critical for the conservation of diadromous fishes. Tupong (Pseudaphritis urvillii) are diadromous fishes found in freshwater and estuarine regions of south-eastern Australia. Previous studies have hypothesised that mature female tupong undertake downstream spawning migrations from freshwater to the estuary or sea, with a compensatory return of juveniles, and possibly spent fish, back upstream. We applied acoustic telemetry to test this hypothesis. We tagged 55 female tupong in two river systems in Victoria, Australia, and tracked movements for 4- to 6-m

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