The presence and abundance of non-indigenous, and/or harmful or toxic dinoflagellate species in ballast sediments is examined for 65 cargo ships visiting ports on the East coast of Canada, as part of the Canadian Aquatic Invasive Species Network (CAISN). Ships visiting several ports in the provinces of Quebec, New Brunswick and Nova Scotia were sampled during three summers (2007, 2008, 2009). T...

Steel-structured jacket or template platforms have been extensively installed in Persian Gulf offshore oil & gas fields. For the jackets in the water depth range of 40 meters in this region, utilizing the self-upending concept has been investigated. It has been concluded that designing the light weight jackets, implementing the self-upending process for their installation operations, are econom...

Transporting non-native species in ballast tanks has been a major challenge over the years. The number of surviving host environment is quite small compared to those all introduced. However, even single can cause great harm environment, economy, and public health. Ballast water treatment issues are difficult complex as performance highly affected by variable characteristics seawater. In additio...

A 45 m section of a railway embankment located at Fort Saskatchewan County in Alberta, Canada, was remediated as part the Canadian Pacific Railway’s (CP) Grade Stabilization/Remediation Plan. The materials were replaced while 4.6 wide reinforcing geotextile (Mirafi® RS580i) and 7.3 wicking H2Ri) installed ballast sub-ballast interface between subgrade sub-ballast, respectively, aiming to addres...

Effective and economical tools are needed for treating ship ballast to meet new regulatory requirements designed to reduce the introduction of invasive aquatic species from ship traffic. We tested the efficacy of hydroxide stabilization as a ballast disinfection tool in replicated, sequential field trials on board the M/V Ranger III in waters of Lake Superior. Ballast water was introduced into ...