Artykuły w czasopismach: „Cooper Creek”

1

Ebner, Brendan C., i Paul Thuesen. "Discovery of stream-cling-goby assemblages (Stiphodon species) in the Australian Wet Tropics". Australian Journal of Zoology 58, nr 6 (2010): 331. http://dx.doi.org/10.1071/zo10061.

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Amphidromous stream-cling-gobies of the genus Stiphodon comprise an important component of the fish communities in insular streams of tropical Indo-Pacific high islands. We aimed to develop an effective and rapid method of surveying Stiphodon atratus in a continental stream and then apply the method in an untested stream. Triple-pass snorkelling of a single pool revealed the reliability of single-pass estimates of the abundance of S. atratus. Single-pass survey of a reach in each of two streams then confirmed the presence of S. atratus, Stiphodon semoni and Stiphodon rutilaureus, in Australia. However, Stiphodon were in low abundance (S. atratus, Cooper Creek, n = 38, Pauls Pocket Creek, n = 45; S. semoni, Cooper Creek, n = 4, Pauls Pocket Creek, n = 14; S. rutilaureus, Cooper Creek, n = 0, Pauls Pocket Creek, n = 38). Preliminary indications are that particular streams provide critical habitat for newly discovered assemblages of Stiphodon within the Australian Wet Tropics. Small population sizes, coupled with the attractiveness of Stiphodon as aquarium pets, warrants that national protective status is provided to this genus until a comprehensive understanding of species distribution, abundance and population genetic structure is achieved.

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2

Ivering, John. "Burke and Wills Bridge, Cooper Creek, Australia". Structural Engineering International 6, nr 3 (sierpień 1996): 159–61. http://dx.doi.org/10.2749/101686696780495572.

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Peacock, David, Gresley A. Wakelin-King i Ben Shepherd. "Cane toads (Rhinella marina) in south-western Queensland: invasion front, spread and how Cooper Creek geomorphology could enable invasion into north-eastern South Australia". Australian Journal of Zoology 62, nr 5 (2014): 366. http://dx.doi.org/10.1071/zo14025.

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The invasion of northern Australia by the poisonous cane toad is well recognised, as is its devastating impacts on numerous local native species. However, there is little recognition that the toads are spreading into south-western Queensland. Utilising local knowledge, a limited survey was undertaken within the Cooper Creek catchment to locate the invasion front. Dispersal during 2010–11 floods has established cane toads as far south as Jundah. Integrating this information with landform mapping indicates that cane toad invasion can continue south-west down the Cooper Creek. Though arid, Cooper Creek’s geomorphology renders it partially independent of local climate, and permanent and semipermanent waterholes (including RAMSAR-listed wetlands) are found downstream from Windorah and into the Strzelecki Desert. Natural landforms provide potential daytime shelter and breeding sites, and additional suitable habitat created by human activity is also widespread. Even unsuccessful attempts at breeding may be detrimental to regional ecology, especially fish populations, at critical stages of their boom/bust cycle. We conclude that there is no reason why cane toads cannot penetrate further down the Cooper Creek, threatening wetlands in north-eastern South Australia. Published models of cane toad expansion, which conclude that north-eastern South Australia is too dry for cane toad populations to establish, are based on climatic parameters that significantly under-represent true habitat availability.

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Balcombe, Stephen R., i Angela H. Arthington. "Temporal changes in fish abundance in response to hydrological variability in a dryland floodplain river". Marine and Freshwater Research 60, nr 2 (2009): 146. http://dx.doi.org/10.1071/mf08118.

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Riverine fish living in unpredictable flow environments tend to be ecological generalists with traits that allow them to persist under highly variable and often harsh conditions associated with hydrological variation. Cooper Creek, an Australian dryland river, is characterised by extreme flow variability, especially in the magnitude, timing and duration of channel flows and floods, which, if they occur, do so mainly in summer. The present study examined the influence of hydrological variability on fish assemblages and abundance in four waterholes in the Windorah reach of Cooper Creek over eight occasions between 2001 and 2004. Antecedent flows had marked influences on fish species richness and assemblage structure. Following high summer flows, all waterholes supported a rich and abundant fish fauna, whereas fewer species and lower numbers were recorded following periods of zero channel flow. Recruitment of three of the four most common and abundant species was enhanced when intermittent flows inundated backwater and floodplain habitats that provide a food-rich environment. Opportunistic responses to rising channel flows and occasional large floods in Cooper Creek help to explain the prominent ‘boom’ patterns of fish production in this arid-zone river, whereas low-level recruitment during periods of low or no flow maintains populations of some species through the ‘bust’.

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Fagan, Simon D., i Gerald C. Nanson. "The morphology and formation of floodplain-surface channels, Cooper Creek, Australia". Geomorphology 60, nr 1-2 (maj 2004): 107–26. http://dx.doi.org/10.1016/j.geomorph.2003.07.009.

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Knighton, A. David, i Gerald C. Nanson. "Flow transmission along an arid zone anastomosing river, cooper creek, australia". Hydrological Processes 8, nr 2 (marzec 1994): 137–54. http://dx.doi.org/10.1002/hyp.3360080205.

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Arthington, Angela H., Julian D. Olden, Stephen R. Balcombe i Martin C. Thoms. "Multi-scale environmental factors explain fish losses and refuge quality in drying waterholes of Cooper Creek, an Australian arid-zone river". Marine and Freshwater Research 61, nr 8 (2010): 842. http://dx.doi.org/10.1071/mf09096.

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Many rivers experience intermittent flows naturally or as a consequence of water abstraction. Climate change is likely to exacerbate flow variability such that dry spells may become more common. It is important to understand the ecological consequences of flow intermittency and habitat fragmentation in rivers, and to identify and protect habitat patches that provide refugia for aquatic biota. This paper explores environmental factors influencing dry season fish losses from isolated waterbodies in Cooper Creek, an unregulated arid-zone river in the Lake Eyre Basin, Australia. Multivariate ordination techniques and classification and regression trees (CART) were used to decompose species–environment relationships into a hierarchically structured data set, and to determine factors explaining changes in fish assemblage structure and species losses over a single dry season. Canonical correspondence analysis (CCA) explained 74% of fish assemblage change in terms of waterhole morphology (wetted perimeter, depth), habitat structure (bench development, off-take channels), waterhole quality (eroded banks, gross primary production), the size of surrounding floodplains and the relative isolation of waterholes. Classification trees for endemic and restricted species reaffirmed the importance of these waterhole and floodplain variables as drivers of fish losses. The CCA and CART models offer valuable tools for identification of refugia in Cooper Creek and, possibly, other dryland rivers.

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8

Frostick, A., A. Bollhöfer, D. Parry, N. Munksgaard i K. Evans. "Radioactive and radiogenic isotopes in sediments from Cooper Creek, Western Arnhem Land". Journal of Environmental Radioactivity 99, nr 3 (marzec 2008): 468–82. http://dx.doi.org/10.1016/j.jenvrad.2007.08.015.

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Sternberg, David, i Bernie Cockayne. "The ongoing invasion of translocated sleepy cod (Oxyeleotris lineolata) in the Lake Eyre Basin, central Australia". Wildlife Research 45, nr 2 (2018): 164. http://dx.doi.org/10.1071/wr17140.

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Context Present-day distribution records show that Oxyeleotris lineolata (sleepy cod) has colonised many ephemeral streams and refugial waterholes of the Cooper Creek catchment in the Lake Eyre Basin within a decade of the first record or capture. When introduced to new habitats outside its natural range, this species is considered to be a serious conservation risk to native fish species. Aims The present study aims to document the transport, establishment, colonisation and integration of O. lineolata in the Lake Eyre Basin, and quantify its impact on native fish assemblages. Methods Fish samples were taken annually in 21 waterholes between 2011 and 2016, by using a combination of single- and double-winged fyke nets. We collected novel diet and life-history information from 242 O. lineolata individuals across their known distribution. Key results Abundance, length distribution and life-history information suggested a ‘colonising front’ moving downstream, across state jurisdictional boundaries and into the Coongie Lakes Ramsar site. Oxyeleotris lineolata diet is most similar to that of two native generalist invertivore–piscivores and preys on several native fish species. With a derived longevity in excess of 15 years and a life-history strategy that combines batch spawning, high fecundity and parental care (i.e. high juvenile survivorship), there is real potential for O. lineolata to dominate fish assemblages in waterholes that provide refuge for native fishes during dry periods. Conclusions The present study showed that O. lineolata has the potential to negatively influence native fish assemblages through both competition and predation in refugial waterholes. Eradication of O. lineolata from the Cooper Creek catchment in central Australia is highly unlikely, given its widespread distribution, the remoteness of the receiving landscape and a current lack of resources to monitor spread and attempt eradication at the moving front of the Cooper Creek population. Implications Achieving greater awareness of the potential impacts of introducing or spreading non-native species is an important first step towards preserving the native fish fauna of the Lake Eyre Basin. Further research is warranted to fully understand the current and potential future distribution of O. lineolata in the basin, its biological and ecological requirements, and influence on native fish species and assemblages.

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10

Knighton, A. David, i Gerald C. Nanson. "Waterholes and their significance in the anastomosing channel system of Cooper Creek, Australia". Geomorphology 9, nr 4 (czerwiec 1994): 311–24. http://dx.doi.org/10.1016/0169-555x(94)90052-3.

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Knighton, A. David, i Gerald C. Nanson. "Waterhole form and process in the anastomosing channel system of Cooper Creek, Australia". Geomorphology 35, nr 1-2 (październik 2000): 101–17. http://dx.doi.org/10.1016/s0169-555x(00)00026-x.

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Cendón, Dioni I., Joshua R. Larsen, Brian G. Jones, Gerald C. Nanson, Daniel Rickleman, Stuart I. Hankin, Juan J. Pueyo i Jerry Maroulis. "Freshwater recharge into a shallow saline groundwater system, Cooper Creek floodplain, Queensland, Australia". Journal of Hydrology 392, nr 3-4 (październik 2010): 150–63. http://dx.doi.org/10.1016/j.jhydrol.2010.08.003.

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MAROULIS, J. C., i G. C. NANSON. "Bedload transport of aggregated muddy alluvium from Cooper Creek, central Australia: a flume study". Sedimentology 43, nr 5 (październik 1996): 771–90. http://dx.doi.org/10.1111/j.1365-3091.1996.tb01501.x.

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Gröcke, Darren R. "Distribution of C3 and C4 Plants in the Late Pleistocene of South Australia Recorded by Isotope Biogeochemistry of Collagen in Megafauna". Australian Journal of Botany 45, nr 3 (1997): 607. http://dx.doi.org/10.1071/bt96040.

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Stable carbon-isotope analyses (expressed as a 13C:12C ratio relative to that of a standard: δ13C) on fossilised collagenic material in megafaunal bones can provide information regarding the palaeodiet (e.g. C3 and/or C4 plants) of these animals. Isotope analyses were performed on collagenic material extracted from bones of Sthenurus spp., Diprotodon spp. and Macropus spp. from Cooper Creek, Henschke Cave, Baldina Creek, Dempsey’s Lake and Rocky River in South Australia. The percentage of trees and shrubs estimated from palaeofloral records in south-eastern Australia and the dietary preferences of megafauna were found to be positively correlated. The dietary preferences of megafauna analysed from South Australian localities indicate that megafauna were opportunistic and changed their diet in response to environmental change. This suggests that megafauna diet can not be founded on dental morphology alone. Fossilised collagenic material in vertebrate remains can provide an insight into the broadscale nature of the vegetation. This approach is a good compliment for other palaeoecological data (e.g. sedimentology, spore–pollen, diatoms) by providing evidence for past climates in relation to the proportion of C3 and C4 plants.

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15

Hewett, Prue. "Cooper Creek Wilderness: perspectives on maintaining a successful ecotourism-driven private protected area in Australia". Journal of Ecotourism 13, nr 1 (2.01.2014): 64–70. http://dx.doi.org/10.1080/14724049.2014.892114.

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Kingsford, R. T., A. L. Curtin i J. Porter. "Water flows on Cooper Creek in arid Australia determine ‘boom’ and ‘bust’ periods for waterbirds". Biological Conservation 88, nr 2 (maj 1999): 231–48. http://dx.doi.org/10.1016/s0006-3207(98)00098-6.

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Nanson, Gerald C., Brian R. Rust i Graham Taylor. "Coexistent mud braids and anastomosing channels in an arid-zone river: Cooper Creek, central Australia". Geology 14, nr 2 (1986): 175. http://dx.doi.org/10.1130/0091-7613(1986)14<175:cmbaac>2.0.co;2.

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Hamilton, Stephen K., Stuart E. Bunn, Martin C. Thoms i Jonathan C. Marshall. "Persistence of aquatic refugia between flow pulses in a dryland river system (Cooper Creek, Australia)". Limnology and Oceanography 50, nr 3 (maj 2005): 743–54. http://dx.doi.org/10.4319/lo.2005.50.3.0743.

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Roberts, Amy, Sean Freeman, Daryl Wesley, Vladimir Levchenko, Linda Barry, Luc Bordes, Katheryn Litherland, Jason Litherland, Joshua Haynes i Aaron Paterson. "Morphological analysis and radiocarbon dating of non-returning boomerangs from Cooper Creek/Kinipapa (Northeast South Australia)". Australian Archaeology 88, nr 1 (3.11.2021): 31–48. http://dx.doi.org/10.1080/03122417.2021.1994685.

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Rust, Brian R., i Gerald C. Nanson. "Contemporary and palaeo channel patterns and the late quaternary stratigraphy of Cooper Creek, Southwest Queensland, Australia". Earth Surface Processes and Landforms 11, nr 6 (listopad 1986): 581–90. http://dx.doi.org/10.1002/esp.3290110602.

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Costelloe, J. F., J. R. W. Reid, J. C. Pritchard, J. T. Puckridge, V. E. Bailey i P. J. Hudson. "Are alien fish disadvantaged by extremely variable flow regimes in arid-zone rivers?" Marine and Freshwater Research 61, nr 8 (2010): 857. http://dx.doi.org/10.1071/mf09090.

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The proliferation of alien fish in dryland rivers potentially obstructs the maintenance of river health. Modified flow regimes are hypothesised to facilitate invasions by alien fish but in unregulated dryland rivers, large floods provide a recruitment advantage for native over alien species whereas droughts favour alien species. We tested these hypotheses by using data from a 3-year study (2000–2003) of fish populations in the unmodified rivers of the Lake Eyre Basin (LEB) of Australia. Results from a lower reach of Cooper Creek were compared with those of an earlier study (1986–1992). During both periods, large floods occurred, with return periods ranging from >1 in 5 to >1 in 25 years. In the lower Cooper, decreases in the abundance of alien species relative to native species, and dramatic increases in recruitment of native species, were observed during a 1–3-year period following large floods. In two other rivers in 2000–2003, there was no statistically significant change in the already low abundances of alien species. We suggest that the naturally variable hydrological regimes and native-dominant fish assemblages of the unregulated LEB rivers afford some resistance to the establishment and proliferation of alien fish through flood and drought conditions.

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PERKINS, PHILIP D. "A revision of the Australian species of the water beetle genus Hydraena Kugelann (Coleoptera: Hydraenidae)". Zootaxa 1489, nr 1 (31.05.2007): 1–207. http://dx.doi.org/10.11646/zootaxa.1489.1.1.

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The Australian species of the water beetle genus Hydraena Kugelann, 1794, are revised, based on the study of 7,654 specimens. The 29 previously named species are redescribed, and 56 new species are described. The species are placed in 24 species groups. High resolution digital images of all primary types are presented (online version in color), and geographic distributions are mapped. Male genitalia, representative female terminal abdominal segments and representative spermathecae are illustrated. Australian Hydraena are typically found in sandy/gravelly stream margins, often in association with streamside litter; some species are primarily pond dwelling, a few species are humicolous, and one species may be subterranean. The areas of endemicity and species richness coincide quite closely with the Bassian, Torresian, and Timorian biogeographic subregions. Eleven species are shared between the Bassian and Torresian subregions, and twelve are shared between the Torresian and Timorian subregions. Only one species, H. impercepta Zwick, is known to be found in both Australia and Papua New Guinea. One Australian species, H. ambiflagellata, is also known from New Zealand. New species of Hydraena are: H. affirmata (Queensland, Palmerston National Park, Learmouth Creek), H. ambiosina (Queensland, 7 km NE of Tolga), H. antaria (New South Wales, Bruxner Flora Reserve), H. appetita (New South Wales, 14 km W Delagate), H. arcta (Western Australia, Synnot Creek), H. ascensa (Queensland, Rocky Creek, Kennedy Hwy.), H. athertonica (Queensland, Davies Creek), H. australula (Western Australia, Synnot Creek), H. bidefensa (New South Wales, Bruxner Flora Reserve), H. biimpressa (Queensland, 19.5 km ESE Mareeba), H. capacis (New South Wales, Unumgar State Forest, near Grevillia), H. capetribensis (Queensland, Cape Tribulation area), H. converga (Northern Territory, Roderick Creek, Gregory National Park), H. cubista (Western Australia, Mining Camp, Mitchell Plateau), H. cultrata (New South Wales, Bruxner Flora Reserve), H. cunninghamensis (Queensland, Main Range National Park, Cunningham's Gap, Gap Creek), H. darwini (Northern Territory, Darwin), H. deliquesca (Queensland, 5 km E Wallaman Falls), H. disparamera (Queensland, Cape Hillsborough), H. dorrigoensis (New South Wales, Dorrigo National Park, Rosewood Creek, upstream from Coachwood Falls), H. ferethula (Northern Territory, Cooper Creek, 19 km E by S of Mt. Borradaile), H. finniganensis (Queensland, Gap Creek, 5 km ESE Mt. Finnigan), H. forticollis (Western Australia, 4 km W of King Cascade), H. fundaequalis (Victoria, Simpson Creek, 12 km SW Orbost), H. fundata (Queensland, Hann Tableland, 13 km WNW Mareeba), H. hypipamee (Queensland, Mt. Hypipamee National Park, 14 km SW Malanda), H. inancala (Queensland, Girraween National Park, Bald Rock Creek at "Under-ground Creek"), H. innuda (Western Australia, Mitchell Plateau, 16 mi. N Amax Camp), H. intraangulata (Queensland, Leo Creek Mine, McIlwrath Range, E of Coen), H. invicta (New South Wales, Sydney), H. kakadu (Northern Territory, Kakadu National Park, Gubara), H. larsoni (Queensland, Windsor Tablelands), H. latisoror (Queensland, Lamington National Park, stream at head of Moran's Falls), H. luminicollis (Queensland, Lamington National Park, stream at head of Moran's Falls), H. metzeni (Queensland, 15 km NE Mareeba), H. millerorum (Victoria, Traralgon Creek, 0.2 km N 'Hogg Bridge', 5.0 km NNW Balook), H. miniretia (Queensland, Mt. Hypipamee National Park, 14 km SW Malanda), H. mitchellensis (Western Australia, 4 km SbyW Mining Camp, Mitchell Plateau), H. monteithi (Queensland, Thornton Peak, 11 km NE Daintree), H. parciplumea (Northern Territory, McArthur River, 80 km SW of Borroloola), H. porchi (Victoria, Kangaroo Creek on Springhill Rd., 5.8 km E Glenlyon), H. pugillista (Queensland, 7 km N Mt. Spurgeon), H. queenslandica (Queensland, Laceys Creek, 10 km SE El Arish), H. reticuloides (Queensland, 3 km ENE of Mt. Tozer), H. reticulositis (Western Australia, Mining Camp, Mitchell Plateau), H. revelovela (Northern Territory, Kakadu National Park, GungurulLookout), H. spinissima (Queensland, Main Range National Park, Cunningham's Gap, Gap Creek), H. storeyi (Queensland, Cow Bay, N of Daintree River), H. tenuisella (Queensland, 3 km W of Batavia Downs), H. tenuisoror (Australian Capital Territory, Wombat Creek, 6 km NE of Piccadilly Circus), H. textila (Queensland, Laceys Creek, 10 km SE El Arish), H. tridisca (Queensland, Mt. Hemmant), H. triloba (Queensland, Mulgrave River, Goldsborough Road Crossing), H. wattsi (Northern Territory, Holmes Jungle, 11 km NE by E of Darwin), H. weiri (Western Australia, 14 km SbyE Kalumburu Mission), H. zwicki (Queensland, Clacherty Road, via Julatten).

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Wademan, Fiona. "Santos Energy Solutions: targeting a lower-carbon future and underpinning our sustainability". APPEA Journal 60, nr 2 (2020): 563. http://dx.doi.org/10.1071/aj19219.

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Santos is actively working to reduce its carbon footprint and prepare for a lower-carbon future, including promoting the role of gas in this future. Santos has set a long-term aspiration to achieve net-zero emissions from its operations by 2050, and a target to reduce emissions across existing operations in the Cooper Basin and Queensland by 5% by 2025. The Energy Solutions team was created to support the delivery of these objectives. Energy Solutions completed a global technology review to identify technologies that would reduce emissions across Santos’ operations and grow gas demand. The review resulted in focus areas of solar, storage (battery, gas and other media), waste heat recovery, wind, carbon capture and storage (CCS) and solar thermal. Santos progressed to implementation and successful demonstration of emissions reduction in 2018 with a world-first installation of an autonomous solar- and battery-powered beam pump. The initial installation in the Cooper Basin is now being expanded to 56 pump conversions to solar and battery with the support of the Australian Renewable Energy Agency. Following this success, Santos increased scale with installation of a 2.12-MW solar array and associated infrastructure at the Port Bonython processing facility. In parallel, fuel efficiency opportunities were targeted through key equipment upgrades, including power generation at Devil Creek with new reciprocating gas engines and rationalisation of legacy compression and power generation infrastructure across the Cooper Basin. Another key focus of the team is the progression of CCS, with appraisal of reservoir targets and pre-front-end engineering design (FEED) studies completed in 2019. The success of these projects provides a robust platform to support the further and more complex emissions reduction project opportunities across Santos’ operations.

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Troup, Alison, i Behnam Talebi. "Adavale Basin petroleum plays". APPEA Journal 59, nr 2 (2019): 958. http://dx.doi.org/10.1071/aj18083.

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The Devonian Adavale Basin system is an under-explored, frontier petroleum basin in south-west Queensland. It has a confirmed petroleum system with production from the Gilmore gas field. The age, marine depositional environments and high carbonate content suggest the basin may have unconventional petroleum potential, and there has been renewed interest from industry in evaluating the basin. In support of this, the Queensland Department of Natural Resources, Mines and Energy has examined the source rock properties of the Bury Limestone and Log Creek Formation and has commissioned an update to the SEEBASE® interpretation of the region. Gas- to oil-mature source rocks are found in deep marine shales of the Log Creek Formation, with secondary potential in the shelfal Bury Limestone. The main known reservoir within the Adavale Basin is the Lissoy Sandstone, though sandstones found in other units may also have tight reservoir potential. These petroleum systems elements form several plays, including conventional clastic structural targets, carbonate plays, including possible reef targets, and salt plays associated with doming from the Boree Salt. Potential unconventional targets include tight sandstone, shale and limestone, with recent analysis of an organic-rich marl from the Bury Limestone indicating good retention properties. The overlying Cooper, Galilee and Eromanga basins also contain potential reservoirs for hydrocarbons generated in the Adavale Basin and Warrabin Trough.

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WALKER, KEITH F., JIM T. PUCKRIDGE i STUART J. BLANCH. "Irrigation development on Cooper Creek, central Australia—prospects for a regulated economy in a boom-and-bust ecology". Aquatic Conservation: Marine and Freshwater Ecosystems 7, nr 1 (marzec 1997): 63–73. http://dx.doi.org/10.1002/(sici)1099-0755(199703)7:1<63::aid-aqc218>3.0.co;2-5.

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Kingsford, Richard T., Andrew J. Boulton i Jim T. Puckridge. "Challenges in managing dryland rivers crossing political boundaries: lessons from Cooper Creek and the Paroo River, central Australia". Aquatic Conservation: Marine and Freshwater Ecosystems 8, nr 3 (maj 1998): 361–78. http://dx.doi.org/10.1002/(sici)1099-0755(199805/06)8:3<361::aid-aqc294>3.0.co;2-v.

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Maroulis, Jerry C., Gerald C. Nanson, David M. Price i Tim Pietsch. "Aeolian–fluvial interaction and climate change: source-bordering dune development over the past ∼100ka on Cooper Creek, central Australia". Quaternary Science Reviews 26, nr 3-4 (luty 2007): 386–404. http://dx.doi.org/10.1016/j.quascirev.2006.08.010.

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McGregor, Glenn B., Jonathan C. Marshall i Martin C. Thoms. "Spatial and temporal variation in algal-assemblage structure in isolated dryland river waterholes, Cooper Creek and Warrego River, Australia". Marine and Freshwater Research 57, nr 4 (2006): 453. http://dx.doi.org/10.1071/mf05128.

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The scale at which algal biodiversity is partitioned across the landscape, and the biophysical processes and biotic interactions which shape these communities in dryland river refugia was studied on two occasions from 30 sites in two Australian dryland rivers. Despite the waterholes studied having characteristically high levels of abiogenic turbidity, a total of 186 planktonic microalgae, 253 benthic diatom and 62 macroalgal species were recorded. The phytoplankton communities were dominated by flagellated cryptophytes, euglenophytes and chlorophytes, the diatom communities by cosmopolitan taxa known to tolerate wide environmental conditions, and the macroalgal communities by filamentous cyanobacteria. All algal communities showed significant differences between catchments and sampling times, with a suite of between 5 and 12 taxa responsible for ~50% of the observed change. In general, algal assemblage patterns were poorly correlated with the measured environmental variables. Phytoplankton and diatom assemblage patterns were weakly correlated with several waterhole geomorphic measures, whereas macroalgal assemblage patterns showed some association with variability in ionic concentration.

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ROBERTS, JANE. "Regeneration and growth of coolibah, Eucalyptus coolabah subsp. arida, a riparian tree, in the Cooper Creek region of South Australia". Austral Ecology 18, nr 3 (wrzesień 1993): 345–50. http://dx.doi.org/10.1111/j.1442-9993.1993.tb00461.x.

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Forshaw, Joseph M., i Leo Joseph. "A new subspecies of the Australian Ringneck (Barnardius zonarius) from the Upper Cooper Creek Drainage, Lake Eyre Basin, central Australia". Emu - Austral Ornithology 116, nr 4 (grudzień 2016): 440–44. http://dx.doi.org/10.1071/mu16005.

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Arthington, Angela H., Stephen R. Balcombe, Glenn A. Wilson, Martin C. Thoms i Jon Marshall. "Spatial and temporal variation in fish-assemblage structure in isolated waterholes during the 2001 dry season of an arid-zone floodplain river, Cooper Creek, Australia". Marine and Freshwater Research 56, nr 1 (2005): 25. http://dx.doi.org/10.1071/mf04111.

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Spatial and temporal variation in fish-assemblage structure within isolated waterholes on the floodplains of Cooper Creek, Australia, was studied during the 2001 dry season, a period of natural drought in this arid-zone river. Spatial variation in fish-assemblage structure and the abundance of five species in disconnected waterholes early in the dry season (April 2001) were related to the extent of floodplain inundation 14 months previously, and to the interconnectedness of waterholes and waterhole habitat structure. As the dry season progressed, waterhole volumes decreased owing to evaporative water loss and structural habitat elements (anabranches, bars, boulders) became exposed. Marked changes in fish assemblage structure between the early (April) and late (September) dry season were related to habitat loss but not to water chemistry. Interactions between flow and habitat across a nested hierarchy of spatial scales (the floodplain, the waterhole and habitat patches within waterholes) were crucial to the persistence of fish assemblages through the 2001 dry season. We conclude that the magnitude, timing and frequency of floodplain inundation and natural variations in waterhole volume must be maintained if we wish to sustain the distinctive habitats and fish assemblages of this arid-zone floodplain river.

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Marshall, Jonathan C., Fran Sheldon, Martin Thoms i Satish Choy. "The macroinvertebrate fauna of an Australian dryland river: spatial and temporal patterns and environmental relationships". Marine and Freshwater Research 57, nr 1 (2006): 61. http://dx.doi.org/10.1071/mf05021.

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Waterholes within the dryland Cooper Creek, Lake Eyre Basin, Australia, are connected only during floods and are typically isolated for long periods. Spatial changes in the macroinvertebrate assemblages of 15 of these waterholes belonging to four regions were explored and these changes were related to environmental aspects of the waterholes measured at four spatial scales: floodplain, waterhole, within waterhole and sample habitat. To explore temporal patterns, one region was sampled on four occasions differing in time since connection. Spatial patterns were characterised by ‘differentiation by distance’ whereby samples collected closer to each other in the landscape were more similar in assemblage composition than those collected further apart. Thus, there were significant differences between the assemblages of the four regions. Although there was a correlation between macroinvertebrate spatial patterns and a combination of local habitat, geomorphology and water chemistry attributes, it appears unlikely that these variables were responsible for the faunal differentiation by distance. Temporal variability was larger than spatial variability and temporal assemblage patterns were best explained by the ‘connectivity potential’ of waterholes, reflecting the position of individual waterholes within the broader channel network and long-term connectivity relationships, rather than the actual time since hydrological connection.

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Kerezsy, Adam, Stephen R. Balcombe, Angela H. Arthington i Stuart E. Bunn. "Continuous recruitment underpins fish persistence in the arid rivers of far-western Queensland, Australia". Marine and Freshwater Research 62, nr 10 (2011): 1178. http://dx.doi.org/10.1071/mf11021.

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Fish living in highly variable and unpredictable environments need to possess life-history strategies that enable them to survive environmental extremes such as floods and drought. We used the length–frequency distributions of multiple fish species in multiple seasons and highly variable hydrological conditions to infer antecedent breeding behaviour in rivers of far-western Queensland, Australia. Hypotheses tested were as follows: (1) recruitment of some or all species of fish would occur within waterholes during no-flow periods; (2) there would be seasonal recruitment responses in some fish species; (3) recruitment of some species would be enhanced by channel flows and/or flooding. Hydrology and the incidence of flooding were highly variable across the study area during 2006–2008. Flood-influenced recruitment was evident for Hyrtl's tandan, Barcoo grunter and Welch's grunter. Silver tandan, golden goby, Cooper Creek catfish and Australian smelt showed evidence of seasonal recruitment unrelated to antecedent hydrology. However, most species demonstrated continual recruitment in isolated waterholes, irrespective of antecedent flow conditions and season. Continual and seasonal recruitment capabilities have obvious advantages over flood-pulse recruitment in rivers with highly unpredictable flood regimes and underpin the persistence of many fish species in arid and semiarid rivers.

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Sheldon, Fran, Andrew J. Boulton i Jim T. Puckridge. "Conservation value of variable connectivity: aquatic invertebrate assemblages of channel and floodplain habitats of a central Australian arid-zone river, Cooper Creek". Biological Conservation 103, nr 1 (styczeń 2002): 13–31. http://dx.doi.org/10.1016/s0006-3207(01)00111-2.

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Cohen, T. J., G. C. Nanson, J. R. Larsen, B. G. Jones, D. M. Price, M. Coleman i T. J. Pietsch. "Late Quaternary aeolian and fluvial interactions on the Cooper Creek Fan and the association between linear and source-bordering dunes, Strzelecki Desert, Australia". Quaternary Science Reviews 29, nr 3-4 (luty 2010): 455–71. http://dx.doi.org/10.1016/j.quascirev.2009.09.024.

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Hein, Jennifer L., Isaure de Buron, William A. Roumillat, William C. Post, Allan P. Hazel i Stephen A. Arnott. "Infection of newly recruited American eels (Anguilla rostrata) by the invasive swimbladder parasite Anguillicoloides crassus in a US Atlantic tidal creek". ICES Journal of Marine Science 73, nr 1 (1.06.2015): 14–21. http://dx.doi.org/10.1093/icesjms/fsv097.

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Abstract Little is known about the infection status of glass eel and elver stages of the American eel Anguilla rostrata by the invasive swimbladder parasite Anguillicoloides crassus. This study examined infection by adult and larval A. crassus in glass eels (n = 274) and elvers (n = 199) collected during March–December 2013 from an eel ladder at a dammed creek near Charleston, SC, USA. Among all the eels examined [total lengths (TLs), 34–156 mm], the prevalence (±SE), mean abundance, and mean intensity of A. crassus worms was 29.4 ± 2.1%, 0.88 ± 0.12, and 2.98 ± 0.34, respectively. Infection by A. crassus was not detected in the earliest glass eel development stages (pigment stages 1–3), but it was detected in more advanced stages (pigment stages 4–7) and fully pigmented elvers. From March to July, parasite prevalence increased significantly with eel TL, and all eels 125 mm or longer (n = 13) were infected. From August–December, when fewer eels were caught, parasite prevalence was generally lower and less dependent on the eel TL. Our study demonstrates the potential risk of spreading A. crassus to new areas by transporting live glass eels and elvers. This is of particular relevance because our study site was located in the Cooper River drainage, one of the few locations in the USA that permits a glass eel harvest.

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Kingsford, Richard T., Craig A. McLoughlin, Robert Brandle, Gilad Bino, Bernie Cockayne, David Schmarr, Travis Gotch, Vol Norris i Justin McCann. "Adaptive Management of Malkumba-Coongie Lakes Ramsar Site in Arid Australia—A Free Flowing River and Wetland System". Sustainability 13, nr 6 (10.03.2021): 3043. http://dx.doi.org/10.3390/su13063043.

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The Malkumba-Coongie Lakes Ramsar Site has extensive terrestrial and freshwater ecosystems (largest Ramsar Site in Oceania, 2,178,952 ha, designated in 1987), including freshwater and salt lakes, lignum swamps and river channels in central Australia. It is supplied by Cooper Creek, a free-flowing Lake Eyre Basin river system. The area includes pastoral leases (97% of site grazed, including a regional conservation reserve (35%)) and a National Park (3%), with the largest oil and gas production field in Australia. We developed a Strategic Adaptive Management (SAM) Plan, linking science, monitoring and management of this social-ecological system, involving stakeholders and workshops. This involved developing a shared vision and hierarchy of objectives linked to management actions and identified outputs and outcomes. We exemplify this approach with explicit and measurable end-points (thresholds of potential concern) culminating from low level objectives for fish communities, particularly the alien sleepy cod Oxyeleotris lineolata. We describe this framework, highlighting the benefits in prioritizing management actions and monitoring in collaboration with a diverse range of stakeholders, driving adaptive feedback for learning. The whole approach is aimed at successfully achieving mutually agreed management objectives and the vision to maintain the ecological character of the Malkumba-Coongie Lakes Ramsar Site.

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Sheldon, Fran, i Christine S. Fellows. "Water quality in two Australian dryland rivers: spatial and temporal variability and the role of flow". Marine and Freshwater Research 61, nr 8 (2010): 864. http://dx.doi.org/10.1071/mf09289.

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Water quality, along with hydrology, plays an important role in the spatial and temporal dynamics of a range of ecological patterns and processes in large rivers and is also often a key component of river health assessments. Geology and land use are significant drivers of water quality during flow periods while during periods of no-flow, local-scale factors such as evaporation, groundwater influence and the concentration and precipitation of compounds are important. This study explored the water quality changes in two Australian dryland rivers, the Cooper Creek (Lake Eyre Basin) and the Warrego River (Murray–Darling Basin), across different hydrological phases over several years. Water quality varied both spatially and temporally; the greatest spatial variability occurred during the no-flow phase, with temporal changes driven by flow. Concentrations of major anions and cations also varied spatially and temporally, with an overall cation dominance of calcium and magnesium and an anion dominance of bicarbonate. This bicarbonate dominance contrasts with previous data from inland lentic systems where sodium chloride was found to dominate. Such extreme spatial and temporal variability hampers successful derivation of water quality guidelines for these variable rivers and suggests such guidelines would need to be developed with respect to ‘flow phase’.

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Chalmers, Gareth R. L., Amanda A. Bustin, Andrea Sanlorenzo i R. Marc Bustin. "Origins of hydrogen sulfide (H". APPEA Journal 62, nr 2 (13.05.2022): S400—S405. http://dx.doi.org/10.1071/aj21020.

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The distribution and origin of hydrogen sulfide (H2S) within gas reservoirs is an important issue due to its toxicity and ability to corrode metal infrastructure, even at low concentrations (i.e. 50 ppm). H2S gas is regarded as a high priority for health and safety at drilling sites. The distribution of H2S, in some basins, can be inexplicable with a mix of sweet (no H2S) and sour (contains H2S) wells within one multi-well pad. Sour gas is a concern in some gas and coal fields in Australia which include Gippsland, Bowen and Cooper-Eromanga basins as well as in the North West Shelf with typical concentrations below 10 000 ppm. For example, the German Creek Formation (Bowen Basin) contains up to 77 ppm of H2S gas and coal seam gas producers will need to perform a risk assessment while exploring and developing this resource. There are multiple sources of H2S gas sulfur and this includes sulfate minerals, pyrite, organic sulfur or from frack water. This research utilises the isotopic variation in the sulfur and oxygen of potential sources, coupled with petrological analyses to determine H2S gas generation. Data is used to predict the gas distribution within the reservoirs to reduce exploration risks. One initial study on the Triassic Montney Formation in western Canada produces H2S gas at concentrations up to 220 000 ppm. Isotopic analyses suggest that the H2S is generated from either Triassic sulfates or a mixture of Triassic and Devonian sources and not solely from Devonian rocks as first expected.

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Alley, Neville F., Keith W. G. Valentine i Robert J. Fulton. "Paleoclimatic implications of middle Wisconsinan pollen and a paleosol from the Purcell Trench, south central British Columbia". Canadian Journal of Earth Sciences 23, nr 8 (1.08.1986): 1156–68. http://dx.doi.org/10.1139/e86-114.

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A paleosol and organic-rich horizons occur in Bessette Sediments near Meadow Creek, south central British Columbia. The paleosol is at least 42 000 years old and formed on a paleoslope adjacent to some precursor to Meadow Creek. On higher parts of the paleoslope, the soil developed under locally dry conditions and influxes of eolian material; a regosol formed near the base of the paleoslope marginal to a floodplain. Pollen assemblages from the organic-rich horizons are grouped into two assemblage zones. MC 1, approximately 42 000 years old, is dominated by arboreal pollen, mainly Picea. MC 2 (approximately 34 000 years old) is dominated by Picea in conjunction with significant amounts of Tsuga heterophylla. Paleoclimatic implications of the assemblages are that temperatures 42 000 years ago were approximately 3 °C cooler than present but by 34 000 years ago had ameliorated and were similar to or slightly cooler than present.

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Ren, Fa Cai, i Xiao Ying Tang. "Investigation on Creep Behavior of Grade 91 Heat-Resistant Steel at 923K". Applied Mechanics and Materials 853 (wrzesień 2016): 163–67. http://dx.doi.org/10.4028/www.scientific.net/amm.853.163.

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Creep deformation behavior of SA387Gr91Cl2 heat-resistant steel used for steam cooler has been investigated. Creep tests were carried out using flat creep specimens machined from the normalized and tempered plate at 973K with stresses of 100, 125 and 150MPa. The minimum creep rate and rupture time dependence on applied stress was analyzed. The analysis showed that the heat-resistant steel obey Monkman-Grant and modified Monkman-Grant relationships.

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Reynolds, Andrew G., Lee Thomas Baker, Li Zhang, Mary Jasinski, Frederick Di Profio, Susanne Kögel i Gary J. Pickering. "Impacts of natural yield variances on wine composition and sensory attributes ofVitis viniferacultivars Riesling and Cabernet Franc". Canadian Journal of Plant Science 98, nr 4 (1.08.2018): 851–80. http://dx.doi.org/10.1139/cjps-2017-0190.

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Impacts of naturally-varying yields on composition and sensory attributes of Ontario Riesling and Cabernet Franc wines were investigated. The sites investigated represented five Vintners Quality Alliance sub-appellations. A grid pattern of sentinel vines was established in each vineyard for data collection. Yields were divided into categories [low, medium, or high (LY, MY, HY)] at harvest (2010, 2011) and replicate wines were made from each. Wines were subjected to sensory sorting tasks to confirm differences between yield categories and sites, and were thereafter subjected to descriptive analysis. All HY vines had higher clusters/vine, berry weights, and Ravaz indices. The HY Cabernet Franc wines had lower colour, anthocyanins, and phenols. Sensory sorting revealed differences amongst wines and descriptive analysis demonstrated several aroma/flavour attributes between yield categories. The HY Riesling wines had less fruit and honey and higher mineral and floral attributes, whereas HY Cabernet Franc wines displayed higher bell pepper, vegetal, and herbaceous characteristics and less fruit attributes. Riesling wines from Lincoln Lakeshore North and Niagara Lakeshore sub-appellations had higher mineral or vegetal attributes, Four Mile Creek had more apple/pear, and St. Davids Bench, Beamsville Bench, and Lincoln Lakeshore South displayed higher fruit and citrus. Escarpment Bench and Four Mile Creek Cabernet Franc 2010 wines had the highest bell pepper aroma, Lincoln Lakeshore North displayed the most earthiness, and Lincoln Lakeshore South had the most cooked fruit. In 2011, cooler sites adjacent to Lake Ontario displayed higher vegetal attributes. Zones of differing yields, dependent upon magnitudes of yield differences, can result in substantially different wine sensory properties.

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Kelley, Donovan. "Abundance, growth and first-winter survival of young bass in nurseries of south-west England". Journal of the Marine Biological Association of the United Kingdom 82, nr 2 (kwiecień 2002): 307–19. http://dx.doi.org/10.1017/s0025315402005507.

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0-group bass were sampled from the shallow creeks of the Tamar and Camel estuaries at regular intervals from May to September in 1981 to 2000 to measure relative year-class abundance. From 1989 onwards classes were generally strong, especially those of 1989, 1992 (Tamar only), 1995 and 1998. Sampling at age-4, before departure from the nursery at the onset of adolescent movements, gave broadly similar relativities. Numbers were greater, and growth faster, in the Tamar than in the smaller and cooler Camel. Temperature was an important factor in both abundance and growth. Occasional major differences in abundance between the two estuaries were reported. Factors which might bias the age-4 result are considered. Other estuaries on the south side of the south-west peninsula, sampled less frequently, reflected Tamar abundances; others on the north side reflected Camel abundances. Limited analysis of stomach contents of older juvenile bass often present in the same habitats revealed no evidence of cannibalism on 0-groups. The shallow creeks of the Tamar and Camel were deserted in winter but a deeper creek on the Taw, frequented throughout winter, was sampled monthly in the 1982–1996 winters to measure losses, if any, in cold periods. In the mainly mild winters, losses were infrequent and small except in the five-week cold spell of early 1986, when the 1985 class suffered an estimated 58% loss in the Taw and possible total loss in the Camel and the Tamar. Sudden heavy flooding of the estuaries caused no apparent losses when they occurred in late summer and autumn but might be damaging if they occur soon after post-larvae arrive.

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JIJINA, ANTHONY P., ELLEN D. CURRANO i KURT CONSTENIUS. "THE PALEOBOTANY AND PALEOECOLOGY OF THE EOCENE HERREN BEDS OF NORTH-CENTRAL OREGON, USA". PALAIOS 34, nr 9 (20.09.2019): 424–36. http://dx.doi.org/10.2110/palo.2019.014.

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ABSTRACT New collections of plant macrofossils and radiometric dates from the Herren beds of north-central Oregon provide the opportunity to document floral communities and calculate foliar-derived climate estimates from the warm early Eocene and the cooler middle Eocene. Plant macrofossils were collected from one fluvial site at East Birch Creek approximately 2 m below a 51.9 ± 0.9 Ma tuff. Collections were also made at two co-occurring fluvial sites at Arbuckle Mountain, whose ages are constrained to ca. 44.5–43.8 Ma based on a dated tuff from Willow Creek (44.5 ± 0.8 Ma) and reported ages for the overlying Clarno Formation. Floral findings show an almost complete vegetation overturn, with only two genera (Glyptostrobus and Allantodiopsis) appearing in both floras. Both floras are species poor, but the older East Birch Creek flora has higher richness and evenness than the younger Arbuckle Mountain flora. The four named genera at East Birch Creek are taxa found throughout Eocene North America; named genera at Arbuckle Mountain also include taxa restricted to the Pacific Northwest. Leaf margin analysis and leaf area analysis of the East Birch Creek community suggest a warmer and possibly wetter (mean annual temperature 23.4 ± 4.3 °C; mean annual precipitation 206 +89, -63 cm) climate than the Arbuckle Mountain flora (16.4 ± 4.2 °C; 165 +50, -71.4 cm). This research provides a framework for future research on Eocene floristic, environmental, and climatic trends of the Pacific Northwest.

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Nordt, Lee. "Late quaternary alluvial stratigraphy of a low-order tributary in central texas, USA and its response to climate and sediment supply". Quaternary Research 62, nr 3 (listopad 2004): 289–300. http://dx.doi.org/10.1016/j.yqres.2004.07.004.

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This paper presents the first comprehensive late Quaternary alluvial stratigraphic study of a low-order tributary in central Texas, using Cowhouse Creek as a case study. The late Pleistocene Jackson (JA) alluvium forms the elevated T2 terrace. The entrenched Holocene valley is filled with the buried Georgetown (GT) alluvium (approximately 11,000 to 8000 14C yr B.P.) and associated Royalty paleosol, and the surficially exposed Fort Hood (FH) alluvium (approximately 7000 to 5000 14C yr B.P.) and West Range (WR) alluvium (approximately 4200 to 600 14C yr B.P.) forming the broad T1 terrace. The Ford (FO) alluvium (<600 14C yr B.P.) forms the modern T0 floodplain entrenched into T1. Conditioned by cooler and wetter climates, Cowhouse Creek was characterized by relatively high base flow and low sediment supply during deposition of the JA and GT alluvium. Appreciable upland soil erosion ensued during the middle Holocene in response to warmer climate conditions, resulting in widespread valley filling by the FH alluvium. Deposition of the late Holocene WR and F0 alluvium was characterized by diminished sediment storage during relatively stable climate conditions. The temporal alluvial stratigraphic framework of the bedrock-confined Cowhouse Creek valley is out of phase with the alluvial sequence in the larger Brazos River valley.

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Rahman, Sharmeen, Daniel Schmidt i Jane M. Hughes. "Genetic structure of Australian glass shrimp, Paratya australiensis, in relation to altitude". PeerJ 8 (9.01.2020): e8139. http://dx.doi.org/10.7717/peerj.8139.

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Paratya australiensis Kemp (Decapoda: Atyidae) is a widely distributed freshwater shrimp in eastern Australia. The species has been considered as an important stream organism for studying genetics, dispersal, biology, behaviour and evolution in atyids and is a major food source for stream dwelling fishes. Paratya australiensis is a cryptic species complex consisting of nine highly divergent mitochondrial DNA lineages. Previous studies in southeast Queensland showed that “lineage 4” favours upstream sites at higher altitudes, with cooler water temperatures. This study aims to identify putative selection and population structure between high elevation and low elevation populations of this lineage at relatively small spatial scales. Sample localities were selected from three streams: Booloumba Creek, Broken Bridge Creek and Obi Obi Creek in the Conondale Range, southeast Queensland. Six sample localities, consisting of 142 individuals in total were sequenced using double digest Restriction Site Associated DNA-sequencing (ddRAD-seq) technique. Among the 142 individuals, 131 individuals shared 213 loci. Outlier analysis on 213 loci showed that 27 loci were putatively under selection between high elevation and low elevation populations. Outlier analysis on individual streams was also done to test for parallel patterns of adaptation, but there was no evidence of a parallel pattern. Population structure was observed using both the 27 outliers and 186 neutral loci and revealed similar population structure in both cases. Therefore, we cannot differentiate between selection and drift here. The highest genetic differentiation was observed between high elevation and low elevation populations of Booloumba Creek, with small levels of differentiation in the other two streams.

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Leary, J., Eve C. Johnstone i D. G. C. Owens. "II. Social Outcome". British Journal of Psychiatry 159, S13 (październik 1991): 13–20. http://dx.doi.org/10.1192/s000712500029630x.

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The social disadvantages for schizophrenic patients in terms of unemployment, impaired relationships, social isolation and downward social drift have been well described (Cooper, 1961; Goldberg & Morrison, 1963; Cheadle et al, 1978; Taylor, 1987). The problems experienced by their caring relatives have been shown to be substantial (Stevens, 1972; National Schizophrenia Fellowship, 1979; Creer et al, 1982). It is important to examine these issues in a large representative sample, and for this reason the social outcome in the 532 patients who form the subjects of the Harrow study of the disabilities and circumstances of schizophrenic patients was examined in some detail.

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Osterback, Ann-Marie K., Cynthia H. Kern, Emerson A. Kanawi, Jeffrey M. Perez i Joseph D. Kiernan. "The effects of early sandbar formation on the abundance and ecology of coho salmon (Oncorhynchus kisutch) and steelhead trout (Oncorhynchus mykiss) in a central California coastal lagoon". Canadian Journal of Fisheries and Aquatic Sciences 75, nr 12 (grudzień 2018): 2184–97. http://dx.doi.org/10.1139/cjfas-2017-0455.

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We investigated how extreme drought conditions influenced the abundance, growth, movement, and seawater readiness of juvenile coho salmon (Oncorhynchus kisutch) and steelhead trout (Oncorhynchus mykiss) in a small central California coastal lagoon. In 2015, the seasonal sandbar at the mouth of Scott Creek formed over 2 months earlier than average, effectively trapping fish in the lagoon for 7 additional months (mid-May through December) before outmigration opportunities eventually resumed. Monthly mark–recapture sampling demonstrated that juvenile coho salmon and steelhead were able to persist in the lagoon during extended periods of high water temperature and low dissolved oxygen concentration. Both salmonid species exhibited similar temporal trends in abundance, growth, and Na+-K+-ATPase activity levels during lagoon residence; however, abundance and growth rates were consistently higher for steelhead. Stationary passive integrated transponder tag antenna detections revealed recurrent movement of individuals between the warm lagoon and cooler lower mainstem creek, suggesting individuals regulated key physiological processes by moving between the adjacent habitats. Our study provides new insight concerning the consequences of drought for imperiled salmonid populations and underscores the importance of life-history diversity during extreme climatic events.

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Kavanagh, S., P. B. Lynch, P. J. Caffrey i W. D. Henry. "Effect of creep feed intake on weaning weight of piglets". Proceedings of the British Society of Animal Science 1996 (marzec 1996): 138. http://dx.doi.org/10.1017/s175275620059334x.

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The benefits of creep feeding in a 3 - 4 week weaning system is uncertain. Sow milk yield peaks at 3 - 4 weeks postpartum and the need for supplementary feed to maintain growth rates of suckling pigs is minimal. The objective of this study was to quantify creep feed intake by suckling pigs and to assess the effect of creep feeding on piglet growth and weight at weaning when weaned at 26.0 (s.e. 0.6) days of age.The results reported here were obtained by combining data from 296 litters of suckling pigs on 5 creep feeding trials. The five trials involved comparison of diets and management systems as follows: (A) effect of quality of creep feed (high quality starter diet vs medium quality starter diet vs a pelleted cooked cereal); (B) comparison of meal and pelleted diets; (C) the effect of form (reconstituted calf milk replacer - 20 % dry matter vs solid pellet vs peat primer offered with a solid pellet); (D) effect of feed freshness (fresh creep vs 30 day old creep vs 60 day old creep feed); (E) effect of creep feeding piglets on pre-weaning performance.

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Kavanagh, S., P. B. Lynch, P. J. Caffrey i W. D. Henry. "Effect of creep feed intake on weaning weight of piglets". Proceedings of the British Society of Animal Science 1996 (marzec 1996): 138. http://dx.doi.org/10.1017/s0308229600031056.

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The benefits of creep feeding in a 3 - 4 week weaning system is uncertain. Sow milk yield peaks at 3 - 4 weeks postpartum and the need for supplementary feed to maintain growth rates of suckling pigs is minimal. The objective of this study was to quantify creep feed intake by suckling pigs and to assess the effect of creep feeding on piglet growth and weight at weaning when weaned at 26.0 (s.e. 0.6) days of age.The results reported here were obtained by combining data from 296 litters of suckling pigs on 5 creep feeding trials. The five trials involved comparison of diets and management systems as follows: (A) effect of quality of creep feed (high quality starter diet vs medium quality starter diet vs a pelleted cooked cereal); (B) comparison of meal and pelleted diets; (C) the effect of form (reconstituted calf milk replacer - 20 % dry matter vs solid pellet vs peat primer offered with a solid pellet); (D) effect of feed freshness (fresh creep vs 30 day old creep vs 60 day old creep feed); (E) effect of creep feeding piglets on pre-weaning performance.

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