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Thursday, April 30, 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

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  • 21 Currently reading

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

    -a division of the benthic zone, the ocean bottom along the continental slope to the open ocean bottom. pertaining to areas of water that are not near surface or bottom of the water body (compare with benthic zone) Photic zone Community Guidelines. Students. Teachers. About. Company. Press. Careers. Advertise. National Ocean Dumping Site Monitoring Assessment Report action was needed. At three of the six other ocean disposal sites surveyed (Sabine-Neches Sites 3 and 4, and Mouth of the Columbia River Deep Water Site), further investigation of the site conditions is necessary to determine if any changes in management practices are needed. Annual weakfish densities in Delaware Bay - 39 Relative abundance indices for Blue Crab from Delaware Bay Trawl Surveys. 43 - Oyster harvest data from the Delaware Estuary - s. 43 Ongoing Monitoring Station locations in the Delaware . Portland Harbor pre-dredge and disposal study Effect of gas supersaturated Columbia River water on the survival of juvenile chinook and coho salmon Effects on benthic communities, water quality, and turbidity Occurrence of fish near the proposed Kalama Nuclear Power Plant site: Columbia River, October to June


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

R/V Delaware I, and Captain Harry Seibert and crel'i of R/V Gosnold assisted with the collecti6n of biological samples and physical-chemical data at sea. Coordination with the Marine Ecosystems Analysis Program, New York Bight Project, was handled by Joel O'Connor and R.

Swanson. Drift Algae in New Haven Harbor and Impacts on Benthic Communities. Introduction. The Quinnipiac River Watershed (QRW) drains into New Haven Harbor (NHH) and thus the but declined near the mouth of the West River in the northwest portion of the harbor (Fig.

Effects on Benthic Communities. 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. Benthic animals, such as these polychaetes, live in or on the bottom. Animals that live in or on the bottom of the Bay are called the benthic community.

Examples of some benthic animals that live in Chesapeake Bay sediments include: clams; amphipods; polychaetes (bristle worms), and; cra bs. 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: Hard Bottom Benthic Community Structure and Morphology of Delaware Bay Nicole A.

Raineault, Art Trembanis, Douglas C. Miller College of Marine and Earth Studies, University of Delaware, Newark, Delaware Motivation Data Summary The goal of this study is to provide new information on the spatial extent of hard.

An assessment of benthic condition in several small and Delaware Bay, Hale et al. () found that urbanization was a good predictor of benthic con- shore near the mouth of the river. Approximately 7% of the land in the Rhode Watershed is imper-vious.

Much of the shoreline in the Rhode River is. The Relationship between Near Shore Hardbottom Exposure and Benthic Community Composition and Distribution in Palm Beach County, FL. and what implications this has on near shore benthic communities.

In situ surveys conducted at sites determined the community structure (corals, octocorals, macroalgae, and hydroids). Author: Kristen A Cumming. Effect of Streambed Disturbance on Benthic Communities- Literature Review The temporary physical disturbance to a streambed caused by transmission line (i.e., natural gas) construction will likely have a short-term localized deleterious impact on benthic macroinvertebrate communities at the site of the disturbance.

However, once the temporarilyFile Size: 70KB. Sea level rise is causing erosion that has all but swallowed this once-thriving town on the shore of the Delaware Bay. These pictures taken in March tell the story of the current state of Port Mahon, Delaware.

Once a popular bayside community, now all that is left is a boat launch lamp accessible at low tide. At high tide the road is. Learn benthic+environment with free interactive flashcards.

Choose from 56 different sets of benthic+environment flashcards on Quizlet. Free Online Library: Effects of a large fishing closure on benthic communities in the western Gulf of Maine: recovery from the effects of gillnets and otter trawls.(Report) by "Fishery Bulletin"; Zoology and wildlife conservation Benthos (Aquatic organisms) Distribution Observations Trawling Influence Methods.

TOXIC SUBSTANCES IN THE CHESAPEAKE BAY ESTUARY OWEN P. BRICKER* ENVIRONMENTAL PROTECTION Pdf CHESAPEAKE BAY PROGRAM ANNAPOLIS, MARYLAND i INTRODUCTION The Chesapeake Bay"i~s "a "geologically young estuarine system, born less t years ago when the Atlantic Ocean, rising in response to • •> r meltwaters from receding Pleistocene glaciers.

Hard-bottom Benthic Communities in Delaware Bay One goal of the Delaware Download pdf Benthic Inventory (DEBI) project was to determine the best sampling methods for hard bottom communities. Such communities and habitats have long been known to be present in the lower part of the bay, but are poorly characterized by.Edward Ebook, Salt Ponds Coalition Date: December Executive Summary During the summer ofsediment cores were taken and processed to determine the importance of benthic recycling on the nitrogen and phosphorus mass balances of Quonochontaug Pond.