Temporary water trading trends in northern Victoria, Australia

Water Policy ◽  
2005 ◽  
Vol 7 (4) ◽  
pp. 429-442 ◽  
Author(s):  
Asif M. Zaman ◽  
Brian Davidson ◽  
Hector M. Malano
Keyword(s):  
Water Exchange ◽  
Seasonal Pattern ◽  
Water Market ◽  
Water Price ◽  
The Past ◽  
Water Trading ◽  
Temporary Water

Temporary water trading is now well established in the Goulburn-Broken Catchment irrigation sector, which is located in northern Victoria, Australia. The operation of the Victorian water exchange (Watermove) has, for the past five years, facilitated this trade. In this paper a review of the market activities over this period is provided. Data from Watermove is analysed to determine the main annual and monthly trends in the trade. It is shown empirically that the water market is displaying signs of maturity and a distinct seasonal pattern for the volumes traded and the market water price has developed.

scholarly journals Epidemic waves of cholera in the last two decades in Mozambique

2015 ◽  
Vol 9 (06) ◽  
pp. 635-641 ◽  
Author(s):  
José Paulo Langa ◽  
Cynthia Sema ◽  
Nilsa De Deus ◽  
Mauro Maria Colombo ◽  
Elisa Taviani
Keyword(s):  
Causative Agent ◽  
Genetic Background ◽  
Endemic Area ◽  
Indian Subcontinent ◽  
Seasonal Pattern ◽  
African Countries ◽  
The Past ◽  
Pandemic Strains ◽  
Genetic Profiles ◽  
Reference Strains

Introduction: Africa is increasingly affected by cholera. In Mozambique, cholera appeared in the early 1970s when the seventh pandemic entered Africa from the Indian subcontinent. In the following decades, several epidemics were registered in the country, the 1997–1999 epidemic being the most extended. Since then, Mozambique has been considered an endemic area for cholera, characterized by yearly outbreaks occurring with a seasonal pattern.. At least three pandemic variants are thought to have originated in the Indian subcontinent and spread worldwide at different times. To understand the epidemiology of cholera in Mozambique, whether the disease re-emerges periodically or is imported by different routes of transmission, we investigated clinical V. cholerae O1 isolated during 1997–1999 and 2012–2014 epidemics. Methodology: By detecting and characterizing seven genetic elements, the mobilome profile of each isolate was obtained. By comparing it to known seventh pandemic reference strains, it was possible to discern among different V. cholerae O1 variants active in the country. Results: During 1997–1999, epidemic strains showed two different genetic profiles, both related to a pandemic clone that originated from India and was reported in other African countries in the 1990s. Isolates from 2012–2014 outbreaks showed a genetic background related to the pandemic strains currently active as the prevalent causative agent of cholera worldwide. Conclusions: Despite cholera being endemic in Mozambique, the epidemiology of the disease in the past 20 years has been strongly influenced by the cholera seventh pandemic waves that originated in the Indian subcontinent.

Farmers' exposure to risk and their temporary water trading

2014 ◽  
Vol 42 (1) ◽  
pp. 1-24 ◽  
Author(s):  
A. Zuo ◽  
C. Nauges ◽  
S. A. Wheeler
Keyword(s):  
Water Trading ◽  
Temporary Water

scholarly journals Reconstruction of east–west deep water exchange in the low latitude Atlantic Ocean over the past 25,000 years

2017 ◽  
Vol 458 ◽  
pp. 327-336 ◽  
Author(s):  
Jacob N.W. Howe ◽  
Alexander M. Piotrowski ◽  
Rong Hu ◽  
Aloys Bory
Keyword(s):  
Atlantic Ocean ◽  
Deep Water ◽  
Water Exchange ◽  
Low Latitude ◽  
The Past ◽  
East West

An integrated water trading–allocation model, applied to a water market in Australia

2009 ◽  
Vol 96 (1) ◽  
pp. 149-159 ◽  
Author(s):  
A.M. Zaman ◽  
H.M. Malano ◽  
B. Davidson
Keyword(s):  
Water Market ◽  
Allocation Model ◽  
Water Trading

The Business of Water

2016 ◽  
Author(s):  
Karen Bakker
Keyword(s):  
Water Management ◽  
Water Supply ◽  
Analytical Framework ◽  
Water Markets ◽  
Water Sector ◽  
Water Privatization ◽  
Five Dimensions ◽  
The Past ◽  
Water Trading ◽  
Market Environmentalism

Over the past three decades, water supply has become big business, and fierce debates have emerged in many countries over water privatization and water markets. This chapter reviews five dimensions of this debate: (1) the privatization of ownership and management; (2) the commercialization of water management organizations; (3) the environmental valuation and pricing of water; (4) the marketization of exchange mechanisms (“water trading” and “water markets”); and (5) the neoliberalization of governance. The analysis offers an analytical framework within which more structured, comprehensive assessments of market environmentalism—which is multifaceted and highly varied, difficult to implement in practice, and by no means hegemonic—in the water sector might be conducted. The chapter concludes with some reflections on the future of this debate.

scholarly journals Winter fungicide sprays impact the dynamics of vineyard Botrytis populations

2017 ◽  
Vol 70 ◽  
pp. 328
Author(s):  
P.R. Johnston ◽  
D. Park ◽  
W.P. Wilkie ◽  
A.F.R. Williams
Keyword(s):  
Competitive Ability ◽  
Management Practice ◽  
Seasonal Pattern ◽  
Sudden Change ◽  
Strong Relationship ◽  
Microsatellite Analysis ◽  
Early Season ◽  
The Past ◽  
High Pathogenicity ◽  
Vascular Pathogens

Botrytis populations in vineyards often show seasonal differences. Early season populations tend to be less pathogenic than those at harvest. This change probably reflects differences in competitive ability in winter versus summer conditions. Such a seasonal pattern was observed in a Waipara vineyard from 2008 to 2012. The population at owering was dominated by a Botrytis cinerea low pathogenicity haplotype; the population at harvest was dominated by a high pathogenicity haplotype. Since the 2013/2014 season, there has been a sudden change in this dynamic, with the high pathogenicity haplotype now dominant at both owering and harvest. This change in the seasonal dynamic was confirmed using microsatellite analysis. A possible explanation for the change in behaviour of the Botrytis populations was a change in management practice, with the addition over the past 2-3 seasons of a winter GelSeal spray for control of vascular pathogens. GelSeal is a trizole fungicide effective against Botrytis. The change to the vineyard spray programme may have disrupted the competitive advantage the low-pathogenicity population previously enjoyed over winter. The possible impact of this change on levels of disease will be discussed in relation to similar seasonal changes in European grape powdery mildew populations, where there is a strong relationship between early season populations and disease at harvest.

Invertebrate resting stages in residual ballast sediment of transoceanic ships

2005 ◽  
Vol 62 (5) ◽  
pp. 1090-1103 ◽  
Author(s):  
Sarah A Bailey ◽  
Ian C Duggan ◽  
Philip T Jenkins ◽  
Hugh J MacIsaac
Keyword(s):  
Species Richness ◽  
Great Lakes ◽  
Ballast Water ◽  
Water Exchange ◽  
Geographic Region ◽  
Invasion Risk ◽  
Resting Stages ◽  
The Past ◽  
Predictive Variables ◽  
Primary Vector

Ballast water has been the primary vector of nonindigenous species (NIS) to the Laurentian Great Lakes over the past 45 years. Although ballast water exchange regulations were implemented in 1993 to reduce propagule loads, new NIS continue to be discovered. A possible explanation for this trend is the importance of alternative vectors, such as residual ballast of ships claiming "no ballast on board". We investigate resting stages of invertebrates in residual ballast sediments of transoceanic ships as a possible vector of NIS to the Great Lakes. To model the introduction effort potentially associated with this vector, we collected sediment samples from 39 ships entering the Great Lakes and measured the density, viability, and species richness of resting stages contained therein. Viable resting stages of NIS were found in 32% of ships, at a mean density of 3.0 × 105·ship–1. Temperature, salinity, and removal of eggs from sediment during incubation had a significant impact on total abundance and species richness of hatched taxa. A total of 21 NIS were identified, consisting exclusively of rotifers and cladocerans. Salinity of residual ballast water and geographic region of ballast uptake were predictive variables for profiling invasion risk due to ships, although explained variability was low.

Sign in / Sign up

Export Citation Format

Share Document