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3 edition of ecological consequences of dredging and dredge spoil disposal in Canadian waters found in the catalog.

ecological consequences of dredging and dredge spoil disposal in Canadian waters

Colin D. Levings

ecological consequences of dredging and dredge spoil disposal in Canadian waters

by Colin D. Levings

  • 33 Want to read
  • 21 Currently reading

Published by NRCC Associate Committee on Scientific Criteria for Environmental Quality in Ottawa .
Written in English

    Subjects:
  • Marine ecology -- Canada,
  • Water -- Pollution -- Canada

  • Edition Notes

    Includes bibliographical references (p. 119-140).

    Statementprepared for the Subcommittee on Water by C.D. Levings.
    SeriesPublication. NRCC / National Research Council of Canada -- no. 18130
    Classifications
    LC ClassificationsQH541.5.S3 L475 1982
    The Physical Object
    Pagination142 p. :
    Number of Pages142
    ID Numbers
    Open LibraryOL16902654M
    LC Control Number2008396800

    DRAFT DREDGING AND SPOIL DISPOSAL MANAGEMENT & MONITORING PLAN FEBRUARY Page 59 the model outputs. Zones of High and Moderate Impact are based on the increases in sedimentation due to project activities in the State waters as described below: • the Zone of High Impact is predicted to encompass areas which experience twice the maximum. Effects of long-term dumping of harbor-dredged material on macrozoobenthos at four disposal sites along the Emilia-Romagna coast (Northern Adriatic Sea, Italy) of dredging and spoil disposal.

    Environmental impact analysis of dredging projects the environmental dredging effects include: (1) increase the suspended sediment concentration. In addition, the onshore disposal of dredged sediment may have a negative impact on the quality of groundwater near the disposal site without appropriate protection measures. 3. Environmental. The seedbank of Kingman marsh developed quickly. Between , the year of restoration, and , the number of taxa in the seedbank increased from 2 to 10 per 90 cm 2 (Neff et al., ).Common taxa included Carex, Juncus, Ludwigia, and the invasive nce of seedlings of annual and native species was greater in the reference marsh than in a 7-year-old restored marsh whereas.

    Diking, dredging, filling and dredge spoils disposal in open coastal waters and wetlands shall require City issuance of a coastal permit. The coastal permit shall only be issued after verification that the activities are necessary, appropriate and designed to minimize or mitigate resultant adverse environmental impact. Babinchak et al () studied the effects of offshore dredge spoil deposition on bottom water quality and on bottom sediments at the offshore disposal site. Material (about million m3) was removed from the Thames River (USA) by bucket dredging and transported, via hopper barges, to an offshore disposal site in Long Island Sound.


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Ecological consequences of dredging and dredge spoil disposal in Canadian waters by Colin D. Levings Download PDF EPUB FB2

Additional Physical Format: Online version: Levings, Colin D. Ecological consequences of dredging and dredge spoil disposal in Canadian waters. Ottawa: National Research Council of Canada, © Get this from a library. The ecological consequences of dredging and dredge spoil disposal in Canadian waters.

[Colin D Levings; National Research Council Canada. Subcommittee on Water.]. About this Book Catalog Record Details. Ecological effects of dredging and dredge spoil disposal: Morton, James Walter.

View full catalog record. The disposal of dredged spoils in estuarine and marine waters accounts for most of the materials dumped in the environments.

Sub-bottom containment involves the capping of contaminated dredged spoils with clean sediments to minimize the reentry of chemical pollutants into the water column. Most investigations of dredging and dredged-spoil. Review of the Ecological Effects of Dredging in the Cultivation and Harvest of Molluscan Shellfish Renee Mercaldo-Allen and Ronald Goldberg NOAA National Marine Fisheries Service, Rogers Avenue, Milford CT US DEPARTMENT OF COMMERCE John E Bryson, Secretary National Oceanic and Atmospheric Administration Dr.

Jane Lubchenco, AdministratorFile Size: KB. The technical guidance is intended for use by dredging applicants, laboratory scientists and regulators in evaluating dredged-material compliance with the United States Ocean Dumping Regulations.

This manual is applicable to all activities involving the transportation of dredged material for the purpose of dumping it in ocean waters outside the baseline from which the territorial sea is measured.

In accordance with the mandate of the Helsinki Commission, the guidelines specifically address the disposal of dredged spoil by deposition or dumping in marine and estuarine waters. It should be recognized that both removal and disposal of dredged sediments may File Size: KB.

environmental dredging process itself, but it is important that environmental dredging be integrated with other components such as transport, dewatering, treatment, and rehandling and disposal options. This report covers initial evaluation, pertinent site conditions and sediment characteristics, environmental dredging performance standards.

Moreover, effects of a disposal operation may be difficult to detect in the biota of the water column, because of the great and rapid sediment dilution and the mobility of organisms, especially if disposal is intermittent and strong.

NATIONAL OCEAN DISPOSAL GUIDELINES FOR DREDGED MATERIAL File Size: 1MB. The permitting process for ocean disposal of dredged material requires the identification and designation of a site where materials may be disposed. Ocean disposal sites are precise geographic areas within which ocean disposal is permitted subject to.

Dredging and dumping of dredged sediments in estuarine and coastal waters may lead to increased turbidity and enhanced sediment deposition at dump sites. This mainly affects primary production by phytoplankton, performance of visual predators (e.g.

fish, birds), and growth and survival of benthic by: ever, dredge spoil from the Great Lakes was disposed of in open waters of the Lakes and in wetland sites because those options were the most economically fea­ sible. Little concern was given to the ad­ verse environmental effects of dredging and dredged material disposal.

Also, the impact of such activities on Great Lakes. Hopper dredging operations release suspended sediment into the environment by agitation of the bed and by discharge of overflow slurries. Monitoring of turbidity and suspended sediment concentrations in central Chesapeake Bay revealed two plumes: (1) an upper plume produced by overflow discharge and (2) a near-bottom plume produced by draghead agitation and rapid settling Cited by: create and maintain accessibility which is vital to the regional economy.

Dredging and disposal activities are also required for creating and maintaining all-tide access to infrastructure generated from tourism and recreational requirements. Maintenance dredging and the disposal of maintenance dredge spoil material have been occurring atFile Size: KB.

Arklow Harbour Commissioners Arklow Port Dredge Spoil Disposal Application to Dump Dredge Spoil at Sea 9 DREDGING & DISPOSAL METHODOLOGY The Irish Dredging Company Ltd.

provided information regarding dredging and disposal methods considered most suitable for conditions encountered at Size: KB. Collections. Galveston Bay Bibliography; GBIC Abstracts (full text not available through Jack K. Williams Library)Cited by: management of dredging and disposal of dredge spoil material in the Marine Park.

Target audience Agency staff; applicants for permissions to undertake dredging and/or dredge spoil material disposal activities in the Marine Park. Purpose 1. The establishment of a formal dredging and dredge spoil material disposal policy is seen as an essentialFile Size: KB.

Dredging activities and the dumping of dredge spoil within the Marine Park are activities that require environmental impact assessment and permitting. In addition to Great Barrier Reef Marine Park Authority (GBRMPA) specific legislation, there are international, Commonwealth and state laws that control dredging and dumping at sea to reduce and.

In the past, spoil was frequently dumped in coastal and ocean waters based on the assumption that marine waters had an unlimited capacity to mix and disperse wastes, while paying little attention to the negative impacts of disposal of dredge spoil on the marine environment.

Over the years, the negative effects of depositing dredge spoil at sea. @article{osti_, title = {Environmental effects of dredging. Environmental effects of dredging technical notes. Plant bioassay of dredged material.

Technical notes}, author = {Folsom, B L and Lee, C R}, abstractNote = {Recently, a solid-phase plant bioassay was developed to test sediment for contaminants that are potentially phytotoxic and may be bioaccumulated by plants (Folsom and Lee.

erations and alternatives to disposal that have economic effects on the dis­ posal system. The environmental quality effects of changed annual disposal volumes of dredged material, while of overriding importance in many cases, are con-'Asst. Prof., Dept. of Civ. Engrg., Univ.

of California, Davis, CA Note.• EM Dredging and Dredged Material Disposal • EM Beneficial Uses of Dredged Material • EM Confined Disposal of Dredged Material • Technical Framework for Environmental Evaluations • Ocean Testing Manual • Inland Testing Manual • Evaluation of Dredged Material Proposed for Disposal at Island, Nearshore, or Upland Confined Disposal Facilities.IMPACT OF DREDGING WORKS IN COASTAL WATERS 3 Figure 1 Simplified empirical carbon flow dia gram for the phytoplankton -based ecosystem of the shelf waters of the North Sea.

Note that, of the g C m-2 yr 1 of sea surface produced by the phytoplankton, the yield to man through pelagic food webs and pelagic fish is estimated to be gCited by: