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Journal articles on the topic "Barwon River"
1
Hesse, Paul P., Rory Williams, Timothy J. Ralph, Zacchary T. Larkin, Kirstie A. Fryirs, Kira E. Westaway, and David Yonge. "Dramatic reduction in size of the lowland Macquarie River in response to Late Quaternary climate-driven hydrologic change." Quaternary Research 90, no. 2 (September 2018): 360–79. http://dx.doi.org/10.1017/qua.2018.48.
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AbstractPalaeochannels of lowland rivers provide a means of investigating the sensitivity of river response to climate-driven hydrologic change. About 80 palaeochannels of the lower Macquarie River of southeastern Australia record the evolution of this distributive fluvial system. Six Macquarie palaeochannels were dated by single-grain optically stimulated luminescence. The largest of the palaeochannels (Quombothoo, median age 54 ka) was on average 284 m wide, 12 times wider than the modern river (24 m) and with 21 times greater meander wavelength. Palaeo-discharge then declined, resulting in a younger, narrower, group of palaeochannels, Bibbijibbery (125 m wide, 34 ka), Billybingbone (92 m, 20 ka), Milmiland (112 m, 22 ka), and Mundadoo (86 m, 5.6 ka). Yet these channels were still much larger than the modern river and were continuous downstream to the confluence with the Barwon-Darling River. At 5.5 ka, a further decrease in river discharge led to the formation of the narrow modern river, the ecologically important Macquarie Marshes, and Marra Creek palaeochannel (31 m, 2.1 ka) and diminished sediment delivery to the Barwon-Darling River as palaeo-discharge fell further. The hydrologic changes suggest precipitation was a driving forcing on catchment discharge in addition to a temperature-driven runoff response.
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Donnelly, T. H., M. R. Grace, and B. T. Hart. "Algal blooms in the Darling-Barwon River, Australia." Water, Air, & Soil Pollution 99, no. 1-4 (October 1997): 487–96. http://dx.doi.org/10.1007/bf02406888.
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Kefford, Ben J., Phil J. Papas, and Dayanthi Nugegoda. "Relative salinity tolerance of macroinvertebrates from the Barwon River, Victoria, Australia." Marine and Freshwater Research 54, no. 6 (2003): 755. http://dx.doi.org/10.1071/mf02081.
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Salinity levels are rising in many freshwater environments, yet there are few direct measurements of salinity tolerance of organisms likely to be salt sensitive. The relative salinity tolerance to artificial seawater of macroinvertebrates from the Barwon River in Victoria, Australia, was assessed by measuring the 72-h lethal concentrations required to kill 50% of individuals (LC50). LC50 values ranged from an electrical conductivity of 5.5 to 76 mS cm–1 (mean 31 mS cm–1, n = 57) and followed a log-normal distribution. The most salt-sensitive groups tested were Baetidae (LC50 value range: 5.5–6.2 mS cm–1), Chironomidae (10 mS cm–1) and several soft-bodied non-arthropods (Oligochaeta, Gastropoda, Nematomorpha, Tricladida and Hirudinea; 9–14 mS cm–1). Other groups, from least to most tolerant, were non-baetid Ephmeroptera (>12.6–15 mS cm–1), Plecoptera (>12.6–>20 mS cm–1), Trichoptera (9–>26 mS cm–1), Corixidae (18–26 mS cm–1), non-corixid Hemiptera (33–44 mS cm–1), Coleoptera (19–54 mS cm–1), Hydracarina (39 mS cm–1) and Odonata (30–55 mS cm–1), and macrocrustaceans (Decapoda, Isopoda and Amphipoda; 38–76 mS cm–1).
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Thoms, M. C., and F. Sheldon. "Water resource development and hydrological change in a large dryland river: the Barwon–Darling River, Australia." Journal of Hydrology 228, no. 1-2 (February 2000): 10–21. http://dx.doi.org/10.1016/s0022-1694(99)00191-2.
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Matheson, A., and M. C. Thoms. "The spatial pattern of large wood in a large low gradient river: the Barwon–Darling River." International Journal of River Basin Management 16, no. 1 (November 6, 2017): 21–33. http://dx.doi.org/10.1080/15715124.2017.1387123.
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Cartwright, Ian, Benjamin Gilfedder, and Harald Hofmann. "Chloride imbalance in a catchment undergoing hydrological change: Upper Barwon River, southeast Australia." Applied Geochemistry 31 (April 2013): 187–98. http://dx.doi.org/10.1016/j.apgeochem.2013.01.003.
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Mallen‐Cooper, Martin, and Brenton P. Zampatti. "Restoring the ecological integrity of a dryland river: Why low flows in the Barwon–Darling River must flow." Ecological Management & Restoration 21, no. 3 (September 2020): 218–28. http://dx.doi.org/10.1111/emr.12428.
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Bowling, LC, and PD Baker. "Major cyanobacterial bloom in the Barwon-Darling River, Australia, in 1991, and underlying limnological conditions." Marine and Freshwater Research 47, no. 4 (1996): 643. http://dx.doi.org/10.1071/mf9960643.
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The occurrence of a severe cyanobacterial bloom is described. This bloom affected almost 1000 km of the Barwon-Darling River, New South Wales, Australia, in November and December 1991 and was dominated by Anabaena circinalis Rabenhorst. This cyanobacterium was present in concentrations of around half a million cells per millilitre at some localities during its peak in mid November. Moderate to very high toxicity was demonstrated by mouse bioassay at many localities during this time. The bloom was attributed to very low flow conditions and high nutrient concentrations, especially of total phosphorus. However, warm water temperatures, elevated pH, reduced turbidity, and improved water transparency would also have been contributing factors. Very high ammonia concentrations were also observed during the bloom. The bloom declined during December and was eventually flushed from the river by increased flows following heavy catchment rainfall between mid December and early January.
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Cartwright, I., B. Gilfedder, and H. Hofmann. "Contrasts between estimates of baseflow help discern multiple sources of water contributing to rivers." Hydrology and Earth System Sciences 18, no. 1 (January 3, 2014): 15–30. http://dx.doi.org/10.5194/hess-18-15-2014.
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Abstract. This study compares baseflow estimates using chemical mass balance, local minimum methods, and recursive digital filters in the upper reaches of the Barwon River, southeast Australia. During the early stages of high-discharge events, the chemical mass balance overestimates groundwater inflows, probably due to flushing of saline water from wetlands and marshes, soils, or the unsaturated zone. Overall, however, estimates of baseflow from the local minimum and recursive digital filters are higher than those based on chemical mass balance using Cl calculated from continuous electrical conductivity measurements. Between 2001 and 2011, the baseflow contribution to the upper Barwon River calculated using chemical mass balance is between 12 and 25% of the annual discharge with a net baseflow contribution of 16% of total discharge. Recursive digital filters predict higher baseflow contributions of 19 to 52% of discharge annually with a net baseflow contribution between 2001 and 2011 of 35% of total discharge. These estimates are similar to those from the local minimum method (16 to 45% of annual discharge and 26% of total discharge). These differences most probably reflect how the different techniques characterise baseflow. The local minimum and recursive digital filters probably aggregate much of the water from delayed sources as baseflow. However, as many delayed transient water stores (such as bank return flow, floodplain storage, or interflow) are likely to be geochemically similar to surface runoff, chemical mass balance calculations aggregate them with the surface runoff component. The difference between the estimates is greatest following periods of high discharge in winter, implying that these transient stores of water feed the river for several weeks to months at that time. Cl vs. discharge variations during individual flow events also demonstrate that inflows of high-salinity older water occurs on the rising limbs of hydrographs followed by inflows of low-salinity water from the transient stores as discharge falls. The joint use of complementary techniques allows a better understanding of the different components of water that contribute to river flow, which is important for the management and protection of water resources.
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Howcroft, William, Ian Cartwright, and Dioni I. Cendón. "Residence times of bank storage and return flows and the influence on river water chemistry in the upper Barwon River, Australia." Applied Geochemistry 101 (February 2019): 31–41. http://dx.doi.org/10.1016/j.apgeochem.2018.12.026.
Full textDissertations / Theses on the topic "Barwon River"
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Boys, Craig Ashley, and n/a. "Fish-Habitat Associations in a Large Dryland River of the Murray-Darling Basin, Australia." University of Canberra. Resource, Environmental & Heritage Sciences, 2007. http://erl.canberra.edu.au./public/adt-AUC20070807.112943.
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Many aspects concerning the association of riverine fish with in-channel habitat remain
poorly understood, greatly hindering the ability of researchers and managers to address
declines in fish assemblages. Recent insights gained from landscape ecology suggest
that small, uni-scalar approaches are unlikely to effectively determine those factors that
influence riverine structure and function and mediate fish-habitat associations. There
appears to be merit in using multiple-scale designs built upon a geomorphologically-derived
hierarchy to bridge small, intermediate and large spatial scales in large rivers.
This thesis employs a hierarchical design encompassing functional process zones
(referred to hereafter as zones), reaches and mesohabitats to investigate fish-habitat
associations as well as explore patterns of in-channel habitat structure in one of
Australia's largest dryland river systems; the Barwon-Darling River.
In this thesis, empirical evidence is presented showing that large dryland rivers are
inherently complex in structure and different facets of existing conceptual models of
landscape ecology must be refined when applied to these systems. In-channel habitat
and fish exist within a hierarchical arrangement of spatial scales in the riverscape,
displaying properties of discontinuities, longitudinal patterns and patch mosaics. During
low flows that predominate for the majority of time in the Barwon-Darling River there
is a significant difference in fish assemblage composition among mesohabitats. There is
a strong association between large wood and golden perch, Murray cod and carp, but
only a weak association with bony herring. Golden perch and Murray cod are large
wood specialists, whereas carp are more general in there use of mesohabitats. Bony
herring are strongly associated with smooth and irregular banks but are ubiquitous in
most mesohabitats. Open water (mid-channel and deep pool) mesohabitats are
characterised by relatively low abundances of all species and a particularly weak
association with golden perch, Murray cod and carp. Murray cod are weakly associated
with matted bank, whereas carp and bony herring associate with this mesohabitat patch
in low abundance.
Nocturnal sampling provided useful information on size-related use of habitat that was
not evident from day sampling. Both bony herring and carp exhibited a variety of
habitat use patterns throughout the die1 period and throughout their lifetime, with
temporal partitioning of habitat use by juvenile bony herring and carp evident. Much of
the strong association between bony herring and smooth and irregular banks was due to
the abundance of juveniles (<100mm in length) in these mesohabitats. Adult bony
herring (>100mm length) occupied large wood more than smooth and irregular banks.
At night, juvenile bony herring were not captured, suggesting the use of deeper water
habitats. Adult bony herring were captured at night and occupjed large wood, smooth
bank and irregular bank. Juvenile carp (<200mm length) were more abundant at night
and aggregated in smooth and irregular banks more than any other mesohabitat patch.
Adult carp (>200mm length) occupied large wood during both day and night.
There is a downstream pattern of change in the fish assemblage among river zones, with
reaches in Zone 2 containing a larger proportion of introduced species (carp and
goldfish) because of a significantly lower abundance of native species (bony herring,
golden perch and Murray cod) than all other zones. In comparison, the fish assemblage
of Zone 3 was characterised by a comparatively higher abundance of the native species
bony herring, golden perch and Murray cod. A significant proportion of the amongreach
variability in fish assemblage composition was explained at the zone scale,
suggesting that geomorphological influences may impose some degree of top-down
constraint over fish assemblage distribution. Although mesohabitat composition among
reaches in the Barwon-Darling River also changed throughout the study area, this
pattern explained very little of the large-scale distribution of the fish assemblage, with
most of the variability in assemblage distribution remaining unexplained. Therefore,
although mesohabitat patches strongly influence the distribution of species within
reaches, they explain very little of assemblage composition at intermediate zone and
larger river scales. These findings suggest that small scale mesohabitat rehabilitation
projects within reaches are unlikely to produce measurable benefits for the fish
assemblage over intermediate and large spatial scales in the Barwon-Darling River. This
indicates the importance taking a holistic approach to river rehabilitation that correctly
identifies and targets limiting processes at the correct scales.
The variable nature of flow-pulse dynamics in the Barwon-Darling River creates a
shifting habitat mosaic that serves to maintain an ever-changing arrangement of habitat
patches. The inundation dynamics of large wood habitat described in this thesis
highlights the fragmented nature of mesohabitat patches, with the largest proportion of
total in-channel large wood remaining unavailable to fish for the majority of the time.
At low flows there is a mosaic of large wood habitat and with increasing discharge more
potential large wood habitat becomes available and does so in a complex spatial
manner. What results in this dryland river is a dynamic pattern of spatio-temporal
patchiness in large wood habitat availability that is seen both longitudinally among
different river zones and vertically among different heights in the river channel. Water
resource development impacts on this shifting habitat mosaic.
Projects undertaking both fish habitat assessment and rehabilitation need to carefully
consider spatial scale since the drivers of fish assemblage structure can occur at scales
well beyond that of the reach. Fish-habitat associations occurring at small spatial scales
can become decoupled by process occurring across large spatial scales, making
responses in the fish assemblage hard to predict. As rivers become increasingly
channelised, there is an urgent need to apply research such as that conducted in this
thesis to better understand the role that in-channel habitats play in supporting fish and
other ecosystem processes. Habitat rehabilitation projects need to be refined to consider
the appropriate scales at which fish assemblages associate with habitat. Failure to do so
risks wasting resources and forgoes valuable opportunities for addressing declines in
native fish populations. Adopting multi-scalar approaches to understanding ecological
processes in aquatic ecosystems, as developed in this thesis, should be a priority of
research and management. To do so will enable more effective determination of those
factors that influence riverine structure and function at the approariate scale.
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Gwyther, Janet, and mikewood. "The ecology of meiofauna in a temperate mangrove ecosystem in south-eastern Australia." Deakin University. School of Ecology and Environment, 2002. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20060705.140427.
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The meiofauna of a mangrove forest in the River Barwon estuary was studied by means of surveys and field experiments. Distinctive assemblages of meiofauna were described from the sediment and pneumatophores of the ecosystem. Fine resolution of phytal habitats was demonstrated, and particular assemblages of meiofauna were characteristic within habitat provided by dominant epibionts. Distribution of the meiofauna within leaf litter revealed high turnover rates of nematodes, and some factors controlling detrital assemblages were assessed. The vertical profile of sedimentary meiofauna was examined, and changes in abundance were related to the tychopelagic habit of many taxa at high tide. Dispersal within the water column was confirmed by pelagic trapping, and colonisation of mimic pneumatophores was investigated. The amount of algal cover, effects of grazing by gastropods, and rugosity of the colonised surface were shown to influence meiofauna colonisation of mimic pneumatophores. Establishment and persistence of patchy distributions of meiofauna at scales of less than 10 m in an intertidal environment was demonstrated, and it was concluded that this was due to the dynamic nature of assemblages rather than their integrity.
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Southwell, Mark, and n/a. "Floodplains as dynamic mosaics : sediment and nutrient patches in a large lowland riverine landscape." University of Canberra. n/a, 2008. http://erl.canberra.edu.au./public/adt-AUC20081217.144116.
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Rivers around the world are under increasing pressure from a variety of human activities.
Effective management of riverine landscapes requires an ecosystem approach and one that
recognises the complex interactions between their physical, chemical and biological
components. Perceptions of pattern and process are central to our understanding of riverine
landscapes. Pattern and process operate over multiple scales to produce heterogeneous
mosaics of landscape patches that change over time. Hierarchical patch dynamics provides a
useful approach to unravel pattern and process at multiple scales in riverine landscapes. This
thesis adopts a hierarchical patch dynamics approach to investigate floodplain sediment and
nutrient dynamics within the Barwon-Darling River in South Eastern Australia.
The flow regime of the Barwon-Darling River is highly variable. As a result, it has a complex
channel cross section featuring inset-floodplain surfaces that occur at multiple elevations
within the channel trough. These surfaces formed the focus of this study. The texture of inset- floodplain
surface sediments displays a patchy spatial distribution and one that did not reflect
lateral or longitudinal gradients within this floodplain landscape. Rather a sediment textural
patch mosaic was identified. Nutrient concentrations associated with the surface sediments of
the inset-floodplains were also shown to vary significantly resulting in a nutrient patch
mosaic. This spatial nutrient mosaic was enhanced by factors including the surface elevation
of the floodplain surface.
Sediment and nutrient exchange between the river channel and inset-floodplain surfaces was
measured during several flows in 2001, 2002 and 2005. Pin and sediment trap data showed
that significant quantities of sediment were exchanged between the river channel and
floodplain surfaces during inundation with both cut and fill processes occurring. Patterns in
sediment exchange appear to be related to local sediment supply and seasonal sediment
exhaustion, rather than the top down geomorphic constraints considered. These material
exchanges resulted in a change to the spatial configuration of the sediment textural patch
mosaic. Distinct new sediment textural patches were created following inundation, while
other patches were lost post inundation and other patches changed sediment textural character
to move into pre-existing patches. Thus a truly dynamic sediment textural mosaic exists
within this floodplain landscape.
Nutrient concentrations associated with floodplain sediments also changed over time. While
nutrient concentrations increased after the December 2001 flow event, they generally
decreased after the March 2002 event, highlighting their dynamic nature over time. The
spatial distribution of nutrient concentrations also varied over time, with a 40 percent change
to the nutrient mosaic as a result of the March 2002 flow event. In addition to the influence of
the changing physical template (sediment texture mosaic), nutrient concentrations were
shown to be influenced by rainfall processes on non flooded surfaces, and also a number of
top-down constraints and bottom-up influences operating over multiple spatial scales.
Overall, the inset-floodplains studied in this thesis acted primarily as sediment and nutrient
sinks, and were a source for dissolved nutrients. Nutrient exchange was associated with the
exchange of sediments in this riverine landscape, over both inter-flow and decadal timescales.
It was demonstrated that water resource development within the catchment reduced the
number, magnitude and duration of flow events down the Barwon-Darling River and as a
result reductions in the exchange of sediment, associated and dissolved nutrients between
inset-floodplains and the main river channel were calculated. The greatest reductions were
with the release of dissolved nutrients (42-25 percent) and the exchange of sediment and
associated nutrients from high level surfaces (43 percent).
Effective conservation and management of riverine ecosystems must occur at the correct
scale. This study identified potential nutrient hotspots at several scales in the Barwon-Darling
floodplain landscape that could be targeted by management. The low predictability of the
location of nutrient hotspots at the inset-floodplain scale over time means that environmental
flows should be targeted at high level surfaces (<25 000 MLD-1) that provide long term
sources of carbon to the river channel. Conserving flows of this magnitude will also reinstate
flow variability, an important facet of the Barwon-Darling River?s hydrology that has been
changed by water resource development. The research presented in this thesis highlights the
importance of not only considering pattern and process at multiple scales, but also the way in
which these processes influence landscape patterns over time, leading to the identification of
the appropriate scales that can best be targeted for the conservation of these systems.
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Schmidt, Bjorn Victor. "A Comparative Ecological Study of Two Sister Species of Darters in Kentucky, Etheostoma Kantuckeense and Etheostoma Lawrencei." TopSCHOLAR®, 2009. http://digitalcommons.wku.edu/theses/76.
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Etheostoma kantuckeense and E. lawrencei are former members of the wide ranging E. spectabile species complex. Etheostoma kantuckeense is endemic to the Barren River Basin in Southern Kentucky and Northern Tennessee, while E. lawrencei occurs in the Green River, Salt River, and Cumberland River Basins of Central and Eastern Kentucky. Isolation of populations within these drainages has allowed for a relatively recent evolutionary divergence, leading to slight differences in morphology. This study was conducted to address if geographical isolation has led to measurable differences in the ecology of these two species. In particular, habitat preference across three spatial scales and growth rates were examined. To assess stream preference within a drainage, 59 streams were sampled for fish abundance and environmental parameters in the Upper Barren River Basin (E. kantuckeense; N=24) and the Upper Green River Basin (E. lawrencei; N=35). Channel unit preference and growth rates were compared in two physically similar upland streams, which were sampled monthly from August 2007 through August 2008. Surveys for microhabitat preference were conducted in these same streams in November 2008. Results from a canonical correspondence analysis show that both species occupy equivalent stream types in their respective watersheds. Within the two survey streams, run habitat was preferred over riffle and pool habitats over the course of the year, and both species exhibited similar seasonal habitat shifts. Microhabitat associations for both species were predominately for small to coarse gravel (1–40mm diameter) substrates. In addition, growth of individuals in their first year of life was similar for both species. These results suggest that these species maintain similar ecological traits in their respective watersheds. The retention of these headwater adapted traits in disjunct populations likely promoted vicariant allopatric speciation in these fishes through isolation and the inability to disperse across ecological barriers.
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Sales, Sabrina de Souza. "Determinação do efeito do regime hidrológico e da regularização do caudal na ecologia trófica do barbo do norte (luciobarbus bocagei steindachner 1864)." Master's thesis, Universidade de Évora, 2015. http://hdl.handle.net/10174/14650.
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Este trabalho avalia o efeito da regularização do caudal pela presença de barragens na disponibilidade alimentar do meio aquático e consequentemente na dieta e actividade alimentar do barbo do Norte. Exemplares adultos foram capturados em rios com características hidrológicas distintas. Barbos do sistema permanente apresentaram uma dieta mais diversificada, principalmente nos períodos de aumento do caudal. Barbos dos rios temporários tiveram uma dieta mais uniforme, sobretudo nos períodos secos do ano. A regularização do caudal afeta de modo diferente os componentes do rio em ambos os sistemas, porém os efeitos sobre os recursos alimentares e sobre a dieta foram semelhantes. A mudança na dieta e atividade alimentar em ambos os sistemas está fortemente associada à variabilidade sazonal dos componentes de caudal e à redução da variabilidade do fluxo causada pela regulação da barragem. Os resultados obtidos podem orientar a implementação de programas de minimização da alteração antropogénica do caudal; Abstract:
Determination of the effect of hydrological regime and the regulation of flow in the trophic ecology of the northern Iberian barbel (Luciobarbus bocagei Steindachner 1864)
This study evaluates the effect of flow regulation by the presence of dams in food availability in the aquatic environment and consequently in diet and feeding activity of barbel North. Adult specimens were caught in rivers with different hydrological characteristics. Barbels from the permanent system showed a more diverse diet, especially during periods of increased flow. Barbels from temporary rivers had a more uniform diet, especially during dry periods of the year. Flow regulation affects different the components of the river on both systems, but the effects on food resources and fish diet were similar. A change in diet and feeding activity in both systems is strongly associated with seasonal variability of flow components, and reduced flow variability caused by dam regulation. The results can guide the implementation of programs to minimize the anthropogenic alteration of the flow.
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Bruce, Rebecca. "Barren River District Health Department Health Education/Risk Reduction Demonstration Projects." TopSCHOLAR®, 1989. https://digitalcommons.wku.edu/theses/2172.
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In July 1980, the Barren River District Health Department (BRDHD), serving eight counties (combined population approximately 204,000) in Southcentral Kentucky, was selected as a demonstration site under the auspices of the federal Health Education Risk Reduction (HERR) Program. With continued HERR funding for eight years, the BRDHD developed several successful health promotion projects. Major components of these projects include: 1) community health promotion, which serves to identify high -risk groups in the community and provide them with health education-health promotion services, 2) school health education which included the development of a preschool health education curriculum, 3) teacher education workshop, which instructs primary and secondary public school teachers in health education methods, 4) smoking cessation. and 5) a large industrial wellness program. This study reports on an eight year program evaluation of the HERR demonstration. Overall, the program evaluation suggests an increase in health knowledge and some attitude and behavior change for many of the participants ii BRDHD programs.
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Zervas, Peter G. "Age, Reproduction, Growth, Condition and Diet of the Introduced Yellow Bass, Morone mississippiensis, in Barren River Lake, Kentucky." TopSCHOLAR®, 2010. http://digitalcommons.wku.edu/theses/203.
Full textAbstract:
Introduction of fish species to North American drainages has occurred for over 100 years. Introduced fish species have been documented to have adverse effects on both the environment and native species of the drainage into which they have been introduced. To better understand the effects that introduced species may have on a particular drainage, it is essential to understand aspects of the introduced species’ life history. The objectives of the current study is to quantify the age, reproduction, growth, condition and diet of the yellow bass, Morone mississippiensis, in Barren River Lake, Kentucky. Monthly collections from three areas on Barren River Lake were made via a boat-mounted electrofisher from March 2008 to March 2009. Fish age was estimated by examining the sagittal otoliths of each individual. Reproductive condition was assessed using the mean gonadosomatic index (GSI) of all sexually mature individuals by month. Yearly growth rates were estimated by computing the mean length at age for each age class and subsequent calculation of the von Bertalanffy growth function (VBGF). To estimate the condition of yellow bass as it changed throughout the sample period, relative weight of each individual was calculated and the mean monthly relative weight was calculated. To examine the diet of yellow bass, diet items were identified to the lowest practical taxonomic level. Then, dry weight of each diet item was estimated and pooled by season to assess the season changes in the diet of yellow bass. Individuals of age group 3 were the most frequent. Mean GSI was significantly higher in March, April and May of 2008. Calculation of the VBGF yielded 254.7 mm as the maximum attainable mean total length of yellow bass in Barren River Lake. VBGF predicted mean total lengths of age classes 0-8 were as follows: 21.7 mm, 64.4 mm, 99.2 mm, 127.7 mm, 151.0 mm, 170.0 mm, 185.5 mm, 198.2 mm, and 208.5 mm. Relative weight was highest in summer. The diet of adult and sub-adult yellow bass relied heavily on chironomid larvae and pupae throughout the year, although diet item consumption was very low in winter. Young-of-year gizzard shad (Dorosoma cepedianum), however, became the most important adult diet item in the spring and summer. To better understand the impacts that the introduced yellow bass has on the ecosystem of Barren Rive Lake, a multi-year study including an estimation of relative abundance is recommended.
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SabiÃ, Rodolfo JosÃ. "Estudo do padrÃo de emissÃo de poluentes para o enquadramento de rios intermitentes: Estudo de caso do Rio Salgado, Ce." Universidade Federal do CearÃ, 2008. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=3819.
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FundaÃÃo de Amparo à Pesquisa do Estado do CearÃO estudo foi desenvolvido em um trecho de 50 km do Rio Salgado, objetivando propor uma metodologia capaz de determinar o padrÃo de emissÃo de poluentes adequado à capacidade de autodepuraÃÃo de um rio em regiÃo semi-Ãrida. Foram realizadas as etapas: (i) reconhecimento da Ãrea a partir do mapeamento do rio Salgado e seus afluentes; (ii) diagnÃstico da qualidade de Ãgua (Fase I, 1300 anÃlises): entre marÃo e setembro de 2005, tendo-se selecionado oito seÃÃes do rio para a coleta e anÃlise de amostras, observando-se 27 parÃmetros em seis campanhas de monitoramento; (iii) diagnÃstico da qualidade de Ãgua (Fase II, 1500 anÃlises): entre fevereiro de 2006 e janeiro de 2007, feito atravÃs de doze campanhas de monitoramento em 14 seÃÃes com os parÃmetros OD, DBO, Coliformes termotolerantes, coliformes totais, pH, turbidez, condutividade elÃtrica, temperatura da Ãgua e do ar; (iv) experimento social, processo participativo envolvendo CSBH-Salgado e demais atores sociais da bacia de estudo, fomentando-se a discussÃo sobre o enquadramento das Ãguas; (v) modelagem da qualidade da Ãgua usando QUAL2E, calibrando-se dois de seus parÃmetros: coeficiente de decaimento de DBO e coeficiente de decaimento de coliformes. A validaÃÃo do modelo QUAL2E foi feita utilizando doze campanhas entre fevereiro de 2006 e janeiro de 2007, distinguindo os perÃodos Ãmido e seco. A simulaÃÃo de cenÃrios foi feita para o padrÃo de emissÃo de DBO com concentraÃÃes de 5 a 100 mg/L, e para o padrÃo de coliformes com as concentraÃÃes de 103 a 107 NMP/100mL. Este trabalho de tese conclui que o Rio Salgado, no trecho em estudo, encontra-se poluÃdo. Foi comprovado que pelo menos cinco parÃmetros se encontram em desacordo com os padrÃes de qualidade, inclusive da classe IV: oxigÃnio dissolvido (OD), demanda bioquÃmica de oxigÃnio (DBO), coliformes termotolerantes (CTT), nitrogÃnio amoniacal e fÃsforo total. O modelo provou ser vÃlido para simulaÃÃo de OD, DBO e CTT para o perÃodo Ãmido com coeficientes de Nash e Sutcliffe (NSE) entre 0,61 e 0,96. Para o perÃodo seco, o modelo mostrou-se aceitÃvel para OD e DBO (NSE entre 0,33 e 0,49) e vÃlido para CTT (NSE 0,83). Os atores sociais identificaram os âpadrÃes de emissÃo â como instrumento essencial para a sustentabilidade ambiental da bacia. A proposta desta pesquisa de se admitir uma âtolerÃnciaâ aos parÃmetros de qualidade de Ãgua foi aceita pelos membros do comità como ferramenta vÃlida. Os membros do comità indicaram, para o trecho em estudo, Classe II com tolerÃncia de aproximadamente 10%. A simulaÃÃo de cenÃrios usando o modelo QUAL-2E mostrou valores do padrÃo de emissÃo de DBO, para a Classe II nos perÃodos Ãmido e seco, de 6 mg/L. Caso o rio seja enquadrado na Classe III, os valores seriam de 20 e 17 mg/L para os perÃodos Ãmido e seco, respectivamente. Apesar de a Classe II ser a desejada para o enquadramento do rio pelo comitÃ, verificou-se que os valores dos padrÃes de emissÃes seriam muito baixos para DBO, tornando inviÃvel a sua adoÃÃo, pois as atividades poluidoras sÃo incapazes de alcanÃar tal eficiÃncia no estado atual. Jà para o padrÃo de emissÃo de coliformes termotolerantes, o padrÃo de emissÃo seria de 103 NMP/100mL (perÃodo seco) e 104 NMP/100mL (perÃodo Ãmido) para que o rio seja de Classe II, enquanto que, para a Classe III, o padrÃo de emissÃo seria da ordem de 105 NMP/100mL, tanto para o perÃodo Ãmido quanto para o perÃodo seco. De acordo com a anÃlise feita nesta tese, o enquadramento mais adequado para o trecho do rio Salgado entre a Fonte da Batateira e a Cachoeira de MissÃo Velha, nas condiÃÃes atuais à a Classe III com tolerÃncia de 10%
This study was carried out on a 50 km length of the Salgado River, aiming to propose a methodology to determine an adequate pattern of pollutants emission, compatible with the natural recovery capacity of a river in a semi-arid region. The following steps were taken: (i) characterization of the study area based on the map of Salgado river and its tributaries; (ii) water quality diagnostic (Phase I, 1300 analysis): from March to September, 2005, in which eight river sections were selected for sampling, and 27 parameters were analysed in six monitoring campaigns; (iii) water quality diagnostic (Phase II, 1500 analysis): from February 2006 to January 2007, composed of twelve monitoring campaigns in 14 river sections with the parameters DO, BOD, faecal coliforms, total coliforms, pH, turbidity, electric conductivity, water and air temperature; (iv) social experiment, a participatory process involving CSBH-Salgado (Salgado Watershed Committee) and other social actors of the study watershed, promoting the discussion on water quality classification; (v) water quality modelling with the QUAL-2E model, calibrating two parameters: BOD and coliforms decay coefficients. Model validation was carried out using twelve campaigns from February 2006 to January 2007, distinguishing wet and dry periods. Scenarios simulation was performed for the BOD emission pattern with concentrations varying from 5 to 100 mg/L, and for the coliforms pattern with concentrations from 103 to 107 PN/100mL. This thesis concludes that the Salgado River, on the study reach, is polluted. It was identified that at least five parameters are in disagreement with the quality standards, inclusive for the Class IV: dissolved oxygen (DO), biochemical oxygen demand (BOD), faecal coliforms (FC), ammonia nitrogen and total phosphorus. The model was valid for the DO, BOD and FC simulations for the wet period, with Nash and Sutcliffe coefficient (NSE) from 0.61 to 0.96. For the dry period, the model was acceptable for DO and BOD (NSE) from 0.33 to 0.49) and valid for FC (NSE 0.83). The social actors identified the âemission patternsâ as an essential instrument for the watershed environmental sustainability. The proposal of this research in admitting a âtoleranceâ to the water quality parameters was accepted by the committee members as a valid tool. The committee members indicated, for the study reach, Class II with tolerance of approximately 10%. The scenarios simulation using the QUAL-2E model indicated values of emission pattern for BOD, for the Class II in the wet and dry periods, of 6 mg/L. In the case the river is classified in the Class III, the values would be 20 and 17 mg/L for the wet and dry period, respectively. Although Class II is desired for the river classification by the committee, it was observed that the emission patterns would be too low for BOD, making its adoption impracticable, since the polluting activities are not capable of reaching such efficiency on their current stage. For the faecal coliforms, the emission pattern would be 103 MPN/100mL (dry period) and 104 MPN/100mL (wet period) in the case the river is classified in the Class II, whereas for the Class III, the emission pattern would be of the order of 105 MPN/100mL, for both wet and dry periods. According to the analysis performed in this thesis, the most adequate water quality classification for the Salgado River on the reach between the Batateira Fountain and the MissÃo Velha Waterfall, on the current conditions, is the Class III with tolerance of 10%
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Croskrey, Andrea. "Hydrolgeologic Groundwater Sensitivity and Vulnerability Mapping in South Central Kentucky." TopSCHOLAR®, 2006. http://digitalcommons.wku.edu/theses/450.
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Groundwater sensitivity (Ray and O'dell 1993 a) refers to the inherent ease with which groundwater can be contaminated based on hydrogeologic characteristics. We have developed digital methods for identifying areas of varying groundwater sensitivity for a ten county area of south-central Kentucky relevant to a scale of 1: 24,000. The study area includes extensive limestone karst sinkhole plains, with groundwater that is generally extremely sensitive to contamination. Digitally Vectorized Geologic Quadrangles (DVGQs) were combined with elevation data to both identify hydrogeologic groundwater sensitivity regions and to identify zones of "high risk runoff where contaminants could be transported in runoff from less sensitive to higher sensitivity (particularly karst) areas. This analysis was limited to existing, available digital data sources. While future work will fine-tune these maps with additional layers of data (soils for example) as digital data become available, using DVGQs this method is allowing a relatively rapid assessment of groundwater sensitivity for Kentucky at a larger scale than previously available.
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Silva, Igor Luiz Rodrigues da. "As margens do São Francisco : um olhar antropológico sobre os mestres fazedores de canoas na cidade de Pão de Açúcar." Universidade Federal de Sergipe, 2014. https://ri.ufs.br/handle/riufs/3176.
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Conselho Nacional de Desenvolvimento Científico e TecnológicoThis work has as main goal , the ethnographic construction of social , cultural and environmental realities of the "masters makers of canoes " that are situated in the city of Sugar Loaf, Alagoas , through a perspective that embraces the power of interdisciplinarity in scientific formulation knowledge about the given object . We opted for this bias given that interdisciplinarity in its most current form seeks to understand the ways in which individuals through their interactions , produce and reproduce through social relationships and interaction with nature . The master, because practice is systematized knowledge is the basis for completing the work and conduct of social practices , never leaving aside the recovery and exaltation of the secret. It is handmade in the shipyards on the banks of the São Francisco River , along the urban perimeter , which our study has developed . Thus , the yards are constructed as the locus , the observation point of the exercise master, the creation and recreation of the work of artisans from boats, feeder and fed by sociocultural dynamics expertise of teachers . To do this you must also understand how these men endowed with wisdom and dexterity articulate their practices with environmental , social and cultural factors that directly interfere in relations appropriation of space.
Este trabalho tem como objetivo primordial, a construção etnográfica da realidade social, cultural e ambiental dos mestres fazedores de canoas que estão situados na cidade de Pão de Açúcar, Alagoas, através de uma perspectiva que abrange o poder da interdisciplinaridade na formulação científica do conhecimento sobre o determinado objeto. Optamos por esse viés tendo em vista que a interdisciplinaridade na sua forma mais corrente busca entender as formas pelas quais os individuos através de suas interações, produzem e se reproduzem através das relações sociais e interação com a natureza. A mestrança é pratica porque sistematiza o conhecimento, é o fundamento da realização do trabalho, e na condução das praticas sociais, nunca deixando de lado a valorização e exaltação do segredo. É nos estaleiros artesanais situados as margens do rio São Francisco, ao longo de perímetro urbano, que nosso estudo tem se desenvolvido. Assim, os estaleiros se constroem enquanto o lócus, o ponto de observação do exercício da mestrança, da criação e recriação do trabalho de artesãos de barcos, de dinâmicas socioculturais alimentadoras e alimentadas pelo saber-fazer dos mestres. Para tal é necessário entender também, como esses homens dotados de sabedoria e destreza articulam as suas praticas com os fatores ambientais, sociais e culturais, que interferem diretamente nas relações a apropriação do espaço.
Books on the topic "Barwon River"
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Carrasco, Estêvão. Barcos do Tejo. [Lisbon]: Edições Inapa, 1997.
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Halpin, Alice. Agricultural impact statement, USH 8 Corridor Preservation: Hay River to USH 53 Barron County. Madison, WI: State of Wisconsin Dept. of Agriculture, Trade & Consumer Protection, 2012.
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Alaperrine-Bouyer, Monique. Mariano Eduardo de Rivero en algunas de sus cartas al Baron Alexander von Humboldt. [Arequipa, Peru]: Centro de Estudios Arequipeños, Claustro Mayor, UNSA, 1999.
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The Baron Of Coyote River. Galaxy Press (CA), 2010.
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The Baron Of The Coyote River. Galaxy Press (CA), 2010.
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Leopold, Estella B. Stories From the Leopold Shack. Oxford University Press, 2016. http://dx.doi.org/10.1093/oso/9780190463229.001.0001.
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In 1934, conservationist Aldo Leopold and his wife Estella bought a barn - the remnant of a farm - and surrounding lands in south-central Wisconsin. The entire Leopold clan - five children in all - worked together to put into practice Aldo's "land ethic," which involved ecological restoration and sustainability. In the process, they built more than a pleasant weekend getaway; they established a new way of relating to nature. In 1948, A Sand County Almanac was published, and it has become a beloved and foundational text of the conservation movement. Decades later, Estella B. Leopold, the youngest of the Leopold children - she was eight when they bought the land - now reflects on the "Shack," as they called the repurposed barn, and its inhabitants, and recalls with clear-eyed fondness the part it played in her and her siblings' burgeoning awareness of nature's miracles, season by season. In Stories from the Leopold Shack: Sand County Revisited, she unforgettably recalls the intensity of those days: the taste of fresh honey on sourdough pancakes; the trumpeting arrival of migrating Canada geese; the awesome power of river ice driven by currents - and each description is accompanied by stunning photographs by her brother, A. Carl Leopold. As the Leopolds worked to restore degraded farmland back to its original prairie and woods, they noted and celebrated all of the flora and fauna that came to share the Shack lands. As first evoked in A Sand County Almanac, and now revisited in Stories from the Leopold Shack, the Leopold family's efforts of ecological restoration were among the earliest in the United States, and their work, collectively and individually, continues to have a profound impact on land management and conservationism. All of Aldo and Estella Leopold's children went on to become distinguished scientists and to devote themselves to a life of conservation; their work continues through the Aldo Leopold Foundation. Estella B. Leopold book offers a voyage back to the place where it all began.
Book chapters on the topic "Barwon River"
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Donnelly, T. H., M. R. Grace, and B. T. Hart. "Algal Blooms in the Darling-Barwon River, Australia." In The Interactions Between Sediments and Water, 487–96. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5552-6_50.
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Jones, H. A. "The influence of hydrology on freshwater mussel (Bivalvia: Hyriidae) distributions in a semi-arid river system, the Barwon-Darling River and Intersecting Streams." In Animals of Arid Australia, 132–42. P.O. Box 20, Mosman NSW 2088, Australia: Royal Zoological Society of New South Wales, 2007. http://dx.doi.org/10.7882/fs.2007.046.
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"A DAY IN AUTUMN [THE RIVER ORWELL]." In Selected Poems of Bernard Barton, the 'Quaker Poet', 80–83. Anthem Press, 2020. http://dx.doi.org/10.2307/j.ctvx1hvkj.33.
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Scott, Walter. "Chapter XXVIII." In Rob Roy. Oxford University Press, 2008. http://dx.doi.org/10.1093/owc/9780199549887.003.0032.
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Baron of Bucklivie, May the foul fiend drive ye, And a’ to pieces rive ye, For building sic a town, Where there's neither horse meat, nor man's meat, nor a chair to sit down. Scottish Popular Rhymes on a bad Inn* The night...
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Colopy, Cheryl. "Dirty, Sacred Rivers." In Dirty, Sacred Rivers. Oxford University Press, 2012. http://dx.doi.org/10.1093/oso/9780199845019.003.0008.
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I wanted to see the source of what we in the West call the Ganges. Here in South Asia people call it Mother Ganga, Gangaji, the Great Ganga. At the edge of the icy river that flows from the Gangotri glacier I scooped Gangajal—Ganges water—into plastic soft drink bottles. I planned to take some of this water to friends in Kathmandu, practicing Hindus for whom the drops of glacial melt would have spiritual meaning. Along with its tremendous religious and ritual value, the water of the Ganga has been shown to be both antimicrobial and richer in oxygen than that of other rivers. Revered beyond all others, this river is now abused in equal measure: harnessed for hydropower near its holy mountain source, polluted with every imaginable waste as it runs its course for more than 1,500 miles across the widest part of the Indian subcontinent. One of the Ganga’s main and equally sacred tributaries, the Yamuna, flows through Delhi. Delhi, a city of more than fifteen million, owes its existence to this river, which is now dead at its doorstep. Industrial effluents pour in upriver, then Delhi adds its sewage. During my first trip to Delhi in January 2007, I went down to the edge of the Yamuna. I wanted to see just how bad the river’s reputed pollution might be. First I saw the barren ground along the riverside, strewn with rubble from the construction of a nearby bridge. There was little to tell me that this area was also the site of regular religious practice where people come to do puja, take a little of the water to splash on their heads, throw some flowers into the river. Bunching up in the eddies under the bridge pylons were stray bits of colored plastic and plastic shopping bags bloated with garbage, floating like sagging baloons half filled with air. They mingled with broken yellow marigolds scattered in the water and bright red flowers set afloat in little cups by those who had come to worship by the river.
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Walker, David. "Conclusion." In Railroading Religion, 235–48. University of North Carolina Press, 2019. http://dx.doi.org/10.5149/northcarolina/9781469653204.003.0008.
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This chapter shows how LDS officials and businessmen continuously found ways to bend railroads to their benefits or reshape Mormons institutions in order to flourish in their networks, such as the irrigation display at the Chicago World’s Fair. Regardless of the failure of the Bear River Irrigation company, it was proof of Mormon fortitude through cultural and locative righteousness. The company’s resources were reorganized by Mormon businessmen, and Mormons effectively promoted the LDS Church in other venues at World’s Fair. On the other hand, railroad barons’ contracts provided uninterrupted freighting, lucrative receipts of transcontinental tourism, and friendships with Mormon businessmen who intervened on their behalf in Congress. The results of their efforts were the combined naturalizing and mainlining of Mormonism, as tourists were convinced that they could learn from the Mormons to cultivate western lands and define religion in the modern west.
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Coller, Ian. "The Turbans of Liberty." In Muslims and Citizens, 82–103. Yale University Press, 2020. http://dx.doi.org/10.12987/yale/9780300243369.003.0006.
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This chapter investigates the wave of revolutionary universalism launched by a piece of revolutionary theater. This was symbolized by the turban, even as that universalism was riven from within by contradictions over race and religion. As the exclusions of the ancien régime were addressed, new questions emerged around the plurality of religions and their relation to the state. In June 1790, on the anniversary of the declaration of the National Assembly, the appearance of a deputation of foreigners led by the Prussian baron Jean-Baptiste (later Anacharsis) Cloots set off a remarkable chain of events that led to the abolition of noble titles in France. The visible presence of Muslims in this deputation played a key role in catalyzing the explosion of enthusiasm that followed: so much so that counterrevolutionary voices clamored to insist that these Muslims were impostors dressed in costumes from the opera.
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Searle, Mike. "Frozen Rivers and Fault Lines." In Colliding Continents. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199653003.003.0010.
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After seven summer field seasons working in the north-western Himalaya in India, I had heard of a winter trade route that must rank as one of the most outlandish journeys in the Himalaya. The largely Buddhist Kingdoms of Ladakh and Zanskar are high, arid, mountainous lands to the north of the Greater Himalayan Range and in the rain shadow of the summer monsoon. Whereas the southern slopes of the Himalaya range from dense sub-tropical jungles and bamboo forests to rhododendron woods and magnificent alpine pastures carpeted in spring flowers, the barren icy lands to the north are the realm of the snow leopard, the yak, and the golden eagles and lammergeier vultures that soar overhead. The Zanskar Valley lies immediately north-east of the 6–7,000-metre-high peaks of the Himalayan crest and has about thirty permanent settlements, including about ten Buddhist monasteries. I had seen the Zanskar Ranges from the summit of White Sail in Kulu and later spent four summer seasons mapping the geology along the main trekking routes. In summer, trekking routes cross the Himalaya westwards to Kashmir, southwards to Himachal Pradesh, and northwards to Leh, the ancient capital of Ladakh. Winter snows close the Zanskar Valley from the outside world for up to six months a year when temperatures plummet to minus 38oC. Central Zanskar is a large blank on the map, virtually inaccessible, with steepsided jagged limestone mountains and deep canyons. The Zanskar River carves a fantastic gorge through this mountain range and for only a few weeks in the middle of winter the river freezes. The Chaddur, the walk along the frozen Zanskar River, takes about ten to twelve days from Zanskar to the Indus Valley and, in winter time, was the only way in or out before the road to Kargil was constructed. I mentioned this winter trek to Ben Stephenson during our summer fieldwork in Kishtwar and he stopped suddenly, turned around, and said ‘Mike we just have to do this trek!’ So the idea of a winter journey into Zanskar was born, and four of us set off from Oxford in January 1995.
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Bailey, James. "Leaving the Hothouse." In Muriel Spark's Early Fiction, 171–83. Edinburgh University Press, 2021. http://dx.doi.org/10.3366/edinburgh/9781474475969.003.0006.
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This concluding chapter presents a detailed examination of Spark’s most outlandish work of metafiction, The Hothouse by the East River, as a means of uniting the various, interrelated strands of literary experimentation, satire, subversion and social critique discussed over the course of the preceding chapters. Like The Driver’s Seat almost immediately before it, Hothouse stages the operation and gradual deconstruction of a masculine ideal of all-knowing omnipotence; its protagonist, Paul, spirals into impotent obsession when he finds himself unable to decipher the impenetrable mystery concocted by his ghostly wife, Elsa. Before this point, Paul has enjoyed exploiting the kind of manipulative authority exhibited by the likes of The Public Image’s Frederick Christopher, Not to Disturb’s Baron Klopstock, The Ballad of Peckham Rye’s Mr Druce, and Doctors of Philosophy’s Charlie Delfont. Akin to the female characters in those texts (Annabel Christopher, Baroness Klopstock, Merle Coverdale and Leonora Chase, most notably), Elsa has come to languish within a narrow, preconstructed role, before seizing her opportunity, as Leonora and Annabel do, to abandon it entirely. This chapter concludes with a discussion of Spark’s best-known novel, The Prime of Miss Jean Brodie, before reflecting critically on the aims and achievements of the present study.
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Leopold, Estella B. "The Shack Enterprise." In Stories From the Leopold Shack. Oxford University Press, 2016. http://dx.doi.org/10.1093/oso/9780190463229.003.0006.
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In each person’s life a particular place may stand out—a place where one spent a lot of time, a place one grew to love and recall for so many happy memories. Such a place for me was the Shack, on the floodplain of the Wisconsin River. In summertime, standing by the river, it was incredibly quiet, except for the occasional call of a kingfisher. It often seemed that high overhead one could hear a kind of humming. Look up and there were barn swallows turning in the air catching insects. Look down and the surface of the river was always quietly in motion, and rippling against a snag in the shallows. We were a hunting and fishing family. Although camping on weekends early on became a family tradition in Wisconsin, Dad got it into his head to buy a piece of land of our own on which we could camp, hunt, fish, swim, and study nature and even do some bow hunting. He also had a real itch to practice a new idea, ecological restoration, on his own land. At the dedication ceremony of the University of Wisconsin Arboretum on June 17, 1934, Dad told the audience: “The time has come for science to busy itself with the earth itself. The first step is to reconstruct a sample of what we had to start with. That, in a nut shell, is the Arboretum.” He was looking for a place of our own to do just that as well—“a place to show what the land was, what it is, and what it ought to be.” It was in January of 1934; Dad asked an archery friend of his in Prairie du Sac, Ed Ochsner, to help him locate and lease some land near the Wisconsin River. They visited an eighty-acre piece in the south-central part of the state northeast of Baraboo. Dad apparently thought it would fit his purposes. By paying the taxes we could buy the land for just eight dollars an acre.
Conference papers on the topic "Barwon River"
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Sanchez, Marcos Sanchez, and John Iliff. "Rose Fitzgerald Kennedy bridge over the River Barrow. Design and Construction of a long span extrados bridge." In IABSE Congress, Christchurch 2021: Resilient technologies for sustainable infrastructure. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2021. http://dx.doi.org/10.2749/christchurch.2021.0436.
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<p>This paper describes the key elements from early planning to completion of a new bridge over the River Barrow which is part of the New Ross bypass in the south of Ireland. The structure has a total length of 887m, with a span arrangement of 36-45-95-230-230-95-70-50-36m. The two central twin spans are the longest of its kind in the world (extrados with a full concrete deck). The bridge carries a dual carriageway with a cable arrangement consisting of a single plane of cables located in the central axis of the deck. The design and construction focused in providing a structure with long term durability, resilience, and a robust approach to design scenarios using the Eurocodes and state of the art analysis techniques, including extreme events such as fire and ship impact<i>.</i></p>
Reports on the topic "Barwon River"
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Dredge, L. A. Surficial Geology, Barrow River, District of Franklin, Northwest Territories. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1994. http://dx.doi.org/10.4095/203635.
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Corrigan, D., L. Nadeau, P. Brouillette, N. Wodicka, R G Berman, and M. G. Houlé. Geology, Barrow River, Melville Peninsula, Nunavut, NTS 46-O and 46-P. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2020. http://dx.doi.org/10.4095/297366.
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Miller, Andrew C., and Barry S. Payne. Survey for Freshwater Mussels (Unionidae) in the Lower Green and Barren Rivers, Kentucky, 1992. Fort Belvoir, VA: Defense Technical Information Center, May 1993. http://dx.doi.org/10.21236/ada266271.
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Geochemical analysis of Alaska North Slope NPR-A oil samples at the Alaska GMC from: Umiat (generic) Nanushuk Reservoir, US Navy Simpson Core Test #27 - Nanushuk Reservoir, and North Slope Borough US Navy South Barrow #12 - Sag River Reservoir. Alaska Division of Geological & Geophysical Surveys, December 2007. http://dx.doi.org/10.14509/19560.
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