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Showing 1 to 20 of 23 for “"Ballast water"”.
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Electro-disinfection of Ballast Water
… electro-disinfection as a potential secondary ballast water treatment technology. Electricity applied to bacteria laden water produced bactericidal effects, reactive oxygen species and chlorine generation which annihilated bacteria. Evaluation of electro-disinfection experiments showed titanium …
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Risk-based framework for ballast water safety management
Ballast water has been identified as a major vector for the translocation of Non- Indigenous Invasive Species (NIS) and pathogens across zoogeographical regions and subsequent discharged into recipient port states/regions. This is bound to increase given factors like the globalization of trade and …
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From port to ballast water: application of ADN metabarcoding of shipborne biodiversity
El transporte marítimo es uno de los vectores más importantes en la introducción y dispersión de especies alóctonas, algas tóxicas y patógenos al rededor del mundo. Miles de organismos, de gran diversidad son transportados diariamente en tanques de agua de lastre o incrustados en el casco de buques …
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Challenges of permitting ballast water discharges from commercial vessels in U.S. waters
… the Vessel General Permit (VGP), under the Clean Water Act (CWA), for discharges incidental to the normal operation of vessels, including ballast water discharges. This set forth permit requirements for most commercial vessel discharges within 3 nautical miles of U.S. shore. Since it will expire …
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Development of decision support tool for advising on selecting ballast water treatment system
… presents a decision support tool for selecting a Ballast Water Treatment System (BWTS) for a given ship. A single decision has to be made between a number of given BWTS alternatives for a VLCC tanker under its voyage in the presence of a single decision maker. The decision support tool was …
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The international convention for the control and management of ships' ballast water and sediments 2004: a critical appraisal
Oceans cover more than 70 per cent of the earth's surface, and over 60 per cent of human population resides along the coast. A significant proportion of human protein supply comes from the sea, while the majority of global biodiversity and over 97 per cent of the biosphere is marine and is unknown. …
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The international convention for the control and management of ships' ballast water and sediments 2004: a critical appraisal
Oceans cover more than 70 per cent of the earth's surface, and over 60 per cent of human population resides along the coast. A significant proportion of human protein supply comes from the sea, while the majority of global biodiversity and over 97 per cent of the biosphere is marine and is unknown. …
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The international convention for the control and management of ships' ballast water and sediments 2004: a critical appraisal
Oceans cover more than 70 per cent of the earth's surface, and over 60 per cent of human population resides along the coast. A significant proportion of human protein supply comes from the sea, while the majority of global biodiversity and over 97 per cent of the biosphere is marine and is unknown. …
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Optimization of a Method for Testing Ballast Water for Enterococci and an Investigation on the Occurrence of Antibiotic Resistance in Vibrio cholerae
Several methods of enumerating Enterococci in water are suggested in the literature, notably membrane filtration and mEA plating. To establish optimal growth conditions, including incubation time, (24 and 48 hr) and temperature (35°C and 41°C), samples of 0.1 mL, 1 mL and 10 mL filtered water …
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Aquatic invasive species vector management: challenges and practical solutions on the eve of new global shipping regulations
A new world standard for ballast water management (IMO-D2) will be enforced commencing September 2017. This thesis aims to achieve required final population abundances for target organisms. In chapter 2, I tested synergy effects with two ballast water treatments (chlorination and ballast water …
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Saldanha Bay as a living space: negotiating (re)source dynamics in a water scarce Bay
… poised at the interchange between land and water. Because of its role as a port city, it is a place where water systems, transport routes, and industrial activity meet and intermingle. This thesis focuses on the threat that is posed to the ecosystems of the bay through repeatedly introducing …
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Marine alien species in Western Cape harbours, South Africa: A tool for stategically focusing monitoring efforts
… the globe through various vectors, including ballast water, hull fouling, aquaculture facilities and the aquarium and pet trade. Ballast water has previously been considered as the primary vector of alien species transfer. However, fouling is becoming widely recognised as an important vector …
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Testing the use of port biological baseline surveys to support relevant marine alien species management applications in Africa
… and regulation to reduce the significance of the ballast water and biofouling pathways. Ballast water management (BWM) processes have matured significantly at international levels over recent decades, with the support of the International Maritime Organization (IMO) and its BWM Convention. The …
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Control Method for Invasive Aquatic Species introduced via Ballast Water: Effects of Carbon Dioxide Supersaturation on Survivorship of Digesia tigrina (Planaria: Maculata) and Lirceus brachyurus (Isopoda: Crustacea) and Effect of High Hydrostatic Pressure Processing on Freely Suspended and Shellfish Associated T7 Bacteriophage
… for Invasive Aquatic Species introduced via Ballast Water: Effects of Carbon Dioxide Supersaturation on Survivorship of Digesia tigrina (Planaria: Maculata) and Lirceus brachyurus (Isopoda: Crustacea) Survivorship of an aquatic species of planaria (Digesia tigrina) and isopods (Lirceus …
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Analysis of toxic and non-toxic Alexandrium (Dinophyceae) species using ribosomal RNA gene sequences
… Europe, Thailand, Japan, Australia and the ballast water of several cargo vessels, and include both toxic and non-toxic strains. An emphasis was placed on the A. tamarense/catenella/fundyense "species complex," a group of morphotypically-similar organisms found in many regions of the world. …
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Systematics of the Freshwater Amphipod Genus <i>Crangonyx</i> (Crangonyctidae) in North America
… the genus probably originated as very old freshwater lineage dating back at least to the Mesozoic and possibly earlier. The ancestor of modern <em>Crangonyx</em> species possibly resembled C. forbesi and separated from the common ancestor of <em>Synurella</em> and <em>Crangonyx</em> somewhere on …
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Characterization of Antibiotic Resistance in <i>Vibrio cholerae</i> Isolated From Ships' Ballast and Other Environmental Sources
<p>Ships' ballast has been implicated as a vector in the dispersal of invasive species into new environments. Numerous cases have been documented for the introduction of macroorganisms via ballasting operations, but what is less known is the role of ballast water and residuals in the spread of …
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Modelling the sustainability of overwintering Mnemiopsis leidyi populations in the North Sea
… Sea - following accidental introduction via ballast water - coincided with a drastic reduction in the stock of the anchovy Engraulis encrasicolus in the region. M. leidyi has since been found in the coastal waters of many European countries and is a major cause for concern in these areas. In …
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