2 edition of Benthic invertebrates and sediment characteristics at 10 dredged-material disposal areas (beach nourishment) in the lower Columbia River, 1994-1995 found in the catalog.
Benthic invertebrates and sediment characteristics at 10 dredged-material disposal areas (beach nourishment) in the lower Columbia River, 1994-1995
George T. McCabe
by Coastal Zone and Estuarine Studies Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration in Seattle, WA
Written in English
|Statement||George T. McCabe, Jr. and Susan A. Hinton.|
|Contributions||Hinton, Susan A., Northwest Fisheries Science Center (U.S.) Coastal Zone and Estuarine Studies Division.|
|The Physical Object|
|Pagination||viii, 110 p. :|
|Number of Pages||110|
Survey of benthic infaunal assemblages and sediment characteristics in and around the Charleston Ocean dredged material disposal area. Interim Report Submitted to the US Army Corps of Engineers. A macro-invertebrate infaunal dataset was produced from four replicate samples collected annually in September – from one station within the disposal ground (D) and from two nearfield reference stations to the south and to the north (Rs and Rn, respectively; Figure 1).Sediment samples were also collected for particle size analysis, and organic (carbon and nitrogen) and metal (As, Cd.
&EPA United State* Environmental Protection Agency Office of Policy Planning, and Evaluation September CHARACTERISTICS AND EFFECTS OF DREDGED MATERIAL DISPOSAL IN THE MARINE ENVIRONMENT 50 Q. UJ O CURRENT cms'1 "COLLAPSE" _ '•' j FLOCCULATED^'1' ; IMATERIATED ' ' COARSE MATERIAL CONSTANT UPWE'JJNG RATE . Field operations in each survey year included data collection of one or more of the following: precision bathymetric surveys, sediment-profile surveys, grab sampling of benthic invertebrates, and sediment coring. This report summarizes the disposal and monitoring activities at the U.S. Navy Seawolf Disposal Mound from
Harvey, M., Gauthier, D. and Munro, J. () Temporal changes in the composition and abundance of the macro-benthic invertebrate communities at dredged material disposal sites in the Anse-a-Beaufils, Baie des Chaleurs, eastern Canada. Marine Pollution Bulle 41– 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 .
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Fishes, Shrimp, Benthic Invertebrates, and Sediment Characteristics in Intertidal and Subtidal Habitats Major concerns associated with new dredged-material disposal sites, especially when creating islands, are the effects of such activities on Benthic invertebrate and sediment samples were collected at 5.
Benthic Invertebrates. The 10 benthic invertebrate replicates from each station allowed calculation of a mean number/m2 and standard deviation for each species, and total mean number/m2 and standard deviation for each station. Two community structure indices, diversity and equitability, were calculated for each sampling station.
• Benthic invertebrate and *sediment station Sediment station only 0 Ocean Dredged-Material Disposal Site (ODMDS) Figure 1. Locations of benthic invertebrate and sediment stations offshore from the Columbia River sampled during July Stations 56 and 59 were in the same location.
Original disposal Site F First expansion area Proposed expansion area Benthic invertebrate and sediment stations • 10 ~N 15 I Feet fl()() I Figure Locations of benthic invertebrate and sediment stations at and adjacent to offshore disposal.
This study assesses trace metals and macro benthic fauna in a dumping area for dredged material in the continental shelf of Guanabara Bay (Rio de Janeiro), southeast Brazil. Sampling of the study area was made after the last dredging of Rio de Janeiro, inremoving × 10 6 m 3 of sediments that were disposed at a recurrent dumping site.
cases, the highest sediment TBT concentration associated with no biological effects also was the highest concentration measured among all the stations sampled. Also, good correlations were not found between bulk TBT sediment concentrations and laboratory toxicity and in situ benthic community responses.
Based on an evaluation of available. conventional dredged material) and July (5 years after disposal). In both years, sediment-profile and sediment-surface images were collected at a total of 70 stations located over the red clay deposits and 20 stations over the nearby deposits of conventional dredged material (Fig.
2), as well as at 10 stations in the South Reference Area. sediment benthic macrophyte and invertebrate community in the northern Baltic Sea. Boreal Environmental Research, 16 (in press). Herkül K. & Kotta J. Effects of eelgrass (Zostera marina) canopy removal and sediment addition on sediment characteristics and benthic communities in the northern Baltic Sea.
Marine Ecology, 30 (Suppl. Effects of burial by the disposal of dredged materials from the Columbia River on Pacific razor clams (Siliqua patula). The severity of an impact caused by disposal of dredged material depends on many variables, such as the volume of the sediment, the manner of disposal, the characteristics of the dumped sediment and oceanographic conditions at the dumping site (Cole et al., b).
The assemblage in the place of disposal (spoil-ground) may respond to the impact. Author: Bolam, S.G. Source: Marine environmental research v pp. ISSN: Subject: anthropogenic activities; benthic organisms; community.
Burial survival of benthic macrofauna following deposition of simulated dredged material Bolam, Stefan In many coastal regions, the disposal of dredged material constitutes the largest (albeit often localised) anthropogenic disturbance to the seabed.
Impacts can be minimised by reducing the amount of sediment overburden on. 1. Introduction. Open water disposal of dredged material is an environmental concern in New England as well as throughout the world (Fredette and French, ; Van Dolah et al., ).The effects of dredged material disposal on benthic communities are well documented (Bolam and Rees, ).Impacts to the benthie community include direct burial by dredged material (Newell et al., The impact of sediment disposal upon benthic communities varies depending on factors such as volume and sediment characteristics of the discharged material, water depth, surface and hydrography of the disposal area, types of organisms inhabiting the disposal area, and similarity of sediments in dredged and disposal areas, among others (Windom.
Table 3 Sediment Characteristics for the Miami, FL ODMDS Table 4 Water Quality Sampling (Pesticides) Dredged Material Disposal Site (ODMDS) in order to characterize the chemical, physical At station M11, two pieces of rock greater than 10 cm were removed from the benthic sample and three pieces of rock greater than 15 cm were.
DEMERSAL FISHES, BENTHIC AND EPmENTHIC INVERTEBRATES, AND SEDIMENT CHARACTERISTICS. AT AND ADJACENT TO OFFSHORE DISPOSAL.
SITE F, COOS BAY, OREGON, APRIL AND OCTOBER by. Susan A Hinton and Robert L. Emmett. Report ofResearch. Funded by. U.S. Army Corps of Engineers Portland District P.O. Box Portland. the suitability of dredged material for ocean disposal that are based upon the biological testing requirements of the Regulations.
The first testing manual, Ecological Evaluation of Proposed Discharge of Dredged Material into Ocean Waters, commonly referred to as the "Green Book," was published by EPA and USACE in This standard operating procedure describes a method for collection and preservation of benthic invertebrate and sediment characterization samples from the soft sediment typical of Great Lakes deepwater benthic habitats.
Using a spoon collect the top 2 cm of sediment from the collection area and place in the homogenizing. CHARACTERISTICS OF THE DREDGED MATERIAL a. Based on sediment analysis required or other known factors, does thematerial contain any e. Benthic Invertebrate survey based on minimum of three surface grab samples or benthic dredge.
Suspected contaminated sediment proposed for upland disposal should be subjected to an EP Toxicity analysis. The regional administration adopted a temporary plan to store the dredged sediment in disposal areas such as tidal flats, adjacent to each dredging area and belonging to the same water body and there is currently a debate regarding whether or not to use the dredged sediment to restore salt marshes (Bezzi et al., ).
of the study was to collect baseline benthic invertebrate and sediment data in and adjacent to the proposed channel widening area prior to any habitat modification. Benthic invertebrate and sediment samples were collected in October and January, April, and July at 20 stations in or just south of the potential impact area.
Ten.The dredging process increases the sediment water content and decreases the bulk density from an average of g cm-3 found in the channel to g cm-3 at the completion of disposal.
During discharge the sediment/water slurry has a lower density and exhibits fluidized flow characteristics.The Effect of Restoration Measures on the Benthic Invertebrates of a Danube Backwater (Alte Donau) (chapter: %2F_14, book: %2F) .