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Tuesday, May 12, 2020 | History

2 edition of Effect of spoil disposal on benthic communities near the mouth of Delaware Bay found in the catalog.

Effect of spoil disposal on benthic communities near the mouth of Delaware Bay

Don Maurer

Effect of spoil disposal on benthic communities near the mouth of Delaware Bay

by Don Maurer

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Published by University of Delaware, College of Marine Studies in Lewes, Newark .
Written in English

    Subjects:
  • Dredging

  • Edition Notes

    Statementby Don Maurer, Robert Biggs, Wayne Leathem and others
    ContributionsBiggs, Robert, Leathem, Wayne
    The Physical Object
    Pagination231 p.
    Number of Pages231
    ID Numbers
    Open LibraryOL22789167M

      Locations of the three sampling sites along the Delaware Bay. The salinity was highest at Lewes near the mouth of the bay (from Torre and Targett ). Each site was sampled using a 36 meter bag-seine net with two hauls along the beach and two hauls along the riprap. EPA/ November HYDROCARBONS IN SEDIMENTS AND BENTHIC ORGANISMS FROM A DREDGE SPOIL DISPOSAL SITE IN RHODE ISLAND SOUND Paul D. Boehm and James G. Quinn Graduate School of Oceanography University of Rhode Island Kingston, Rhode Island Grant No. R Project Officer Peter Rogerson Environmental Research Laboratory .

    The present study identified the important stressors affecting Greenwich Bay benthic fauna. First, existing data and information were used to confirm that the waterbody was impaired. Second, the presence of source, stressor, and effect were established. Then linkages between source, stressor, and effect were by: 3. prior to final site designation. However, the Wlllapa Bay Interim disposal site. was subsequently moved to deeper water (A fathoms) because of the Intensive. commercial crab fishery at the original site, and It was at this new site that. our sampling took place. Benthlc Invertebrate communities are commonly monitored during.

    Twenty-eight percent of the area in the coastal bays had degraded benthic communities as measured by EMAP's benthic index, which was significantly greater than the 16% EMAP estimated for Delaware Bay using the same methods and same index, and was statistically indistinguishable from the 26% estimated for Chesapeake Bay. The Delaware Bay project has four principle goals. The first is to determine the location and extent of oyster reef habitats in upper Delaware Bay which will greatly improve the ability of Delaware and New Jersey to manage these commercial resources. The second goal is to evaluate short-nose, and atlantic sturgeon habitat.


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Effect of spoil disposal on benthic communities near the mouth of Delaware Bay by Don Maurer Download PDF EPUB FB2

Effect of Spoil Disposal on Benthic Invertebrates Hydraulic dredging and spoil disposal behind the inner breakwater in Delaware Bay has an impact over several kilome~es from the site of operations. While dissolved oxygen and the density of animals fell in the areas immediately affected, the total impact of this operation appears to have been.

by: 9. Effect of spoil disposal on benthic communities near the mouth of Delaware Bay. Lewes ; Newark, Del.: College of Marine Studies, University of Delaware, (OCoLC) Document Type: Book: All Authors / Contributors: Don Maurer.

Effect of spoil disposal on benthic communities near the mouth of Delaware Bay. Delaware River and Bay Authority. Effects of salmon cannery wastes on water quality and marine organisms. Feeding, cleaning and swimming behavior in larval stages of Porcellanid crabs.

Five collections of Cumacea from the Alaskan. Dye drops and current drifters were used to predict the drift and dispersion of dredge spoils dumped at the mouth of Delaware Bay. The dyes and spoil plumes were tracked by airborne and satellite.

The absence of a major longterm disruption to the benthos in the disposal area was probably due to (1) strong tidal currents, which rapidly dispersed the moderate amount of mud sediments released. board spoil disposal on benthic inverte brate communities near the mouth of Delaware Bay.

As shown in Figure 1, maintenance dredging material from the Lewes Ferry Terminal was to be deposited in an area behind the inner breakwater in the Harbor of Refuge, Lewes, Del.

Be fore dredging took place, the sampling grid for geological and biological stations FIGURE?Delaware Bay, including. The effects of dredge spoil disposal on contaminant concentrations and benthic macrofauna were examined at a shallow marine disposal site used for c.

20 years. In a local field study on dredge and spoil disposal at the mouth of the Delaware 66 DON MAURER el al. Bay, there was some suggestion of recruitment three months after dredging (Maurer et al., ).

The m contour thickness of spoil occurred about m from the thickest by: Applications of Benthic Mapping. Mapping the Habitat and Distribution of American Oysters (Crassotera virginica) in the Upper Delaware Bay. The decline of the oyster industry along the mid-Atlantic region has initiated Delaware in an attempt to assess the status of oyster habitat in the Upper Delaware Size: KB.

Thomas & Milstein () reported 78 invertebrate taxa from quantitative samples km off the southern coast of New Jersey. Leathern et al. () and Watling et al.

((2) presented brief accounts of benthic invertebrates at a dredge spoil disposal site and sewage dump site, respectively, near the mouth of Delaware by: Benthic invertebrates have many characteristics which make them prime candidates for burial studies in dredged material.

A major concern in dredging and disposal projects is the effect of burial on the survival of benthic by: Effect of spoil disposal on benthic communities near the mouth of Delaware Bay / Don Maurer [et al.]. Lewes ; Newark, Del.: College of Marine Studies, University of Delaware, be gained to the benthic communities that inhabit the bay and river.

Benthic invertebrates tend to live a longer life then most planktonic organism and can therefore suggest the environmental conditions over time. The Delaware Bay and River consist of both hard. The land area of the Delaware Bay and Estuary Basin is containsacres, of which about 44% is used for agriculture.

Agriculture is Delaware's top industry, and poultry is the primary agricultural product; it is the largest animal based industry in the State. herkül, K., Kotta, J. & Pärnoja, m.

effect of physical disturbance on the soft sediment benthic mac-rophyte and invertebrate community in the northern Baltic sea. Boreal Env. Res. 16 (suppl. a): – Strong storms and ice scour are the most severe physical disturbances in the shallow water areas of the northern Baltic Sea.

Effects of Low Temperature Since about three-quarters of the world's surface is covered by oceanic water, the bulk of which rarely reaches a temperature of 5, the majority of marine microorganisms are probably adapted to low temper- atures (psychronphiles).Cited by: Wayne Leathem's research while The purpose of this study was to determine the composition of the benthic fauna near the mouth of Delaware Bay.

One hundred and five species were collected and. Influence of sewage pollution on benthic communities In this situation facts and models are needed concerning the reactions of different Baltic Sea areas and of their ecosystem fractions on all kinds of disturbances, whether of natural or human origin.

This paper deals with an inshore benthic Cited by:   Effects of dredging and open-water disposal on benthic macroinvertebrates in a South Carolina estuary.

Abstract. Approximat m 3 of muddy sediments were dredged from a shoal in a South Carolina estuarine system and released near the surface at a nearby site having high tidal current by: delaware bay and adjacent waters benthic community assessment u.s.

department of commerce national oceanic and atmospheric administration national ocean service office of ocean resources conservation and assessment sliver spring, maryland 1 i prepared by 1, garry a. vittor & associates, inc. cottage hill rd. mobile, alabama. DELAWARE BAY REPORT SERIES Volume 6 THE BIOLOGY OF THE OYSTER COMMUNITY AND ITS ASSOCIATED FAUNA Research on benthic communities in this region has been restricted diurnal type and their range at the mouth of the bay is feet ( m.).Bay Ecosystem Condition Benthic Habitat Figure 1.

Maps of abiotic (nonliving) benthic habitats in Narragansett Bay and Southwest Coastal Ponds. Top: Geomorphology of the Bay bottom, as derived from bathymetry surveys and supporting sediment type. Bottom: Sediment type, derived from benthic samples and grain size analyses.The science and management community in the Delaware Estuary region has identified a fundamental need for a benthic ecosystem assessment that would inventory the physical and biological conditions of the bottom of the open water tidal system.