Pollution and biological invasion of coastal environment through ballast water of ships
نویسندگان
چکیده
منابع مشابه
Modeling ships’ ballast water as invasion threats to the Great Lakes1
The spread of nonindigenous species (NIS) in aquatic ecosystems provides an opportunity to develop new perspectives on the invasion process. In this paper we review existing invasion models, most of which were developed to describe invasions of terrestrial habitats, and propose an alternative that explores long-distance invasions mediated by discharge of contaminated ballast water by ships inbo...
متن کاملPotential microbial bioinvasions via ships' ballast water, sediment, and biofilm.
A prominent vector of aquatic invasive species to coastal regions is the discharge of water, sediments, and biofilm from ships' ballast-water tanks. During eight years of studying ships arriving to the lower Chesapeake Bay, we developed an understanding of the mechanisms by which invasive microorganisms might arrive to the region via ships. Within a given ship, habitats included ballast water, ...
متن کاملThresholds for tracing ships’ ballast water: an Australian case study
To limit the spread of non-indigenous marine species, ships can be legally required to conduct ballast water exchange (BWE) prior to discharging ballast water. It has been proposed to verify BWE by measuring concentrations of coastal tracers in ballast tanks, which should track their removal. Using 3 Australian ports as case studies (Port Botany, Port Curtis and Port Phillip Bay), each represen...
متن کاملthe effect of vocabulary instruction through semantic mapping on learning and recall of efl learners
چکیده ندارد.
15 صفحه اولThe Effectiveness of the Ballast Water Exchange Method in Removal of the Heavy Metals in the Ballast Tanks of the Ships, Bushehr Port- Persian Gulf
Ships transport about 80 percent of world trade and transfer approximately three to five billion tons of ballast water internationally every year. Due to the likely presence of pollutants, the ballast water discharged by ships can have negative effects on aquatic ecosystems. This study was conducted on 10 ships that entered the Bushehr port to determine the effectiveness of the ballast water ex...
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ژورنال
عنوان ژورنال: Zoos' Print Journal
سال: 2000
ISSN: 0973-2535,0973-2551
DOI: 10.11609/jott.zpj.15.6.283-4