Life Sciences Commons^™

Mid‐Level Intrusions At The Continental Shelf Edge, Christopher S. Welch

VIMS Articles

Observations across the continental shelf offshore from New Jersey in late summer 1976 show an intrusion of saline water at the mid level of the water column across the shelf edge front, which appears in density only as an offshore thickening of the pycnocline. This internal density field produces horizontal pressure gradient forces within the pycnocline in the onshore direction. These forces, in the linearized equation of motion with a constant eddy viscosity, drive a circulation which resembles a double Ekman spiral for internal pressure vertical distributions which are thin with respect to the Ekman depth. For thick pressure distributions, …

Diclidophora Nezumiae Sp. N. (Monogenea: Diclidophoridae) And Its Ecological Relationships With The Macrourid Fish Nezumia Bairdii (Goode And Bean, 1877), Thomas A. Monroe, Ronald A. Campbell, David E. Zwerner

VIMS Articles

Diclidophora nezumiae sp. n. is described from the gills of the rat-tail fish Nezumia bairdii (Goode and Bean, 1877) taken from the environs of Hudson Submarine Canyon in the northwest Atlantic. The host-parasite relationships were studied in the host population. The new species is most similar to small species of Diclidophora having short bodies that taper to maximum width at the level of the first pair of clamps. It may be differentiated from other species by the following: clamps wider than long, noticeably decreasing in size posteriorly; lamellate extension of sclerite b does not fuse with sclerite c1; unsclerotized diaphragm; …

False Cape State Park: Back Bay National Wildlife Refuge Study: A Public Access Analysis, N. Bartlett Theberge

Reports

No abstract provided.

Vims Open House For America's Victory Celebration, Virginia Institute Of Marine Science

Miscellaneous

Plans for the victory celebration are moving at full steam toward the October 16 opening date, with crowd expectation upwards of 200,000 over the four days. The overall event is being managed by the Virginia Independence Bicentennial Commission, and it will involve joint programs in Gloucester and York counties.

Virginia's Charter And Head Boat Fishery Analysis Of Catch And Socioeconomic Impacts, Anne R. Marshall, Jon A. Lucy

Reports

No abstract provided.

Feasibility Of Crab Meal Processing In The Chesapeake Bay Region, Thomas J. Murray, William D. Dupaul

Reports

No abstract provided.

The Present State Of Organic Xenobiotics In The Chesapeake Bay - A Synthesis Paper, R. J. Huggett, R. H. Bieri, P. O. Defur, W. G. Macintyre, P. Shou, C. L. Smith, C. W. Su

Reports

This manuscript discusses the results of the first two and one half years of a three-year study designed to determine the present state of xenobiotic compounds in the Chesapeake Bay. It shows that polynuclear aromatic hydrocarbons are the most frequently encountered compounds and are the most abundant. Concentrations are highest in the Northern Bay with several sources implicated. During this study an apparent dumping of the pesticide, DDT, occurred. Either the quantity disposed of was small enough or the assimulation capacity was large enough that no adverse effects were noted. The detection by us of 6-phenyldodecane in bottom sediments of …

Climate Scale Environmental Factors Affecting Year Class Fluctuations Of Chesapeake Bay Croaker Micropogonias Undulatus, Brenda L. Norcross, Herbert M. Austin

Reports

No abstract provided.

The Present And Potential Productivity Of The Baylor Grounds In Virginia Volume I: Rappahannock, Corrotoman, Great Wicomico, Piankatank, York And Poquoson Rivers, And Mobjack Bay And Its Tributaries, Dexter S. Haven, James P. Whitcomb, Paul C. Kendall

Reports

No abstract provided.

Manual For Growing The Hard Clam Mercenaria, Michael Castagna, John N. Kraeuter

Reports

No abstract provided.

Real-Time Water Quality Model Of The Elizabeth River System, Carl F. Cerco, Albert Y. Kuo

Reports

No abstract provided.

The Present And Potential Productivity Of The Baylor Grounds In Virginia - Volume Ii: James River, Pocomoke And Tangier Sounds, The Bayside And Seaside Of The Eastern Shore, And The Virginia Tributaries Of The Potomac River (Coan And Yeocomico Rivers, And Lower Machodoc And Nomini Creeks), Dexter S. Haven, James P. Whitcomb, Paul C. Kendall

Reports

• Section 1: The Baylor bottoms in the James River
• Section 2: The Baylor bottoms in Pocomoke and Tangier Sounds, Pungoteague, Occohannock and Nassawadox Creeks
• Section 3: The Baylor grounds of the Potomac River tributaries in Virginia (Nomini and lower Machodoc creeks and the Coan and Yeocomico Rivers)
• Section 4: The Baylor bottoms on the seaside of the Eastern Shore
• Appendix: Charts of Baylor grounds

Water Quality In A Small Tidal Creek: Parker Creek, Virginia, Carl F. Cerco, Albert Y. Kuo

Reports

Parker Creek is a branched tidal creek located on the Eastern Shore of Virginia. In its southern branch, the creek receives waste inputs from a poultry processing plant. A study has been conducted to determine the effects of these inputs and to formulate a mathematical model of the creek system suitable for water quality planning. The model and field studies show the creek may be divided into two zones, an upstream zone dominated by freshwater flows and waste inputs, and a downstream zone dominated by conditions in adjacent Metomkin Bay. In the upstream zone of the waste-receiving branch, conditions of …

A Study Of Dredging Effects In Hampton Roads, Virginia, Walter I. Priest Iii

Reports

The intent of this report is to identify and quantify, in part, the adverse effects associated with the dredging operation itself and those segments of the ecological community which might be adversely affected by the levels of suspended solids and sedimentation attributable to the dredge. It consists of three sections including: a comprehensive review of the major marine resources, their location in and utilization of the Hampton Roads Harbor and vicinity; the turbidity model and physical environment, describing the levels and distribution of suspended sediment and sedimentation and local current patterns; and a review of the effects of increased suspended …

The College Of William And Mary, School Of Marine Science, 1981-82 Program, College Of William And Mary, School Of Marine Science

Miscellaneous

Catalog for the Graduate program from the School of Marine Science at the College of William and Mary for the listed academic year.

The Status Of Marine Turtles In Chesapeake Bay And Virginia Coastal Waters, Maryellen Lutcavage

Dissertations, Theses, and Masters Projects

No abstract provided.

Investigation Of Hydrodynamic And Behavioral Factors That Affect Zooplankton Sampling By Pumps, Fred Jacobs, Albert Kuo, George C. Grant

Reports

The present study used a recirculating hydraulic flume to examine the effects of ambient flow regimes, flow fields induced by sampling pumps, sampler orientation, and copepod behavior.

Experimental Colonization Of Crude Oil Contaminated Sediments By Benthos On The Middle Atlantic Continental Shelf, Donald Boesch, Eugene Burreson, Et Al

Reports

In August 1979 six arrays of defaunated sediment were deployed at each of three sites in the Middle Atlantic Outer Continental Shelf. Three arrays at each site had Prudhoe Bay crude oil mixed with the sediment. Because of technical difficulties recovery was limited to one control and one oiled array from two sites--one near the shelf break and one in a mid-shelf swale--after 10 months in situ. Moderate to severe sediment erosion occurred in boxes recovered from the mid-shelf. Chemical analyses indicated that between 50 and 90 percent of the added oil remained in the sediments after 10 months and …

Primary Productivity And Nitrogen-Fixation In 2 Macroalgae-Cyanobacteria Associations, Pa Penhale, Dg Capone

VIMS Articles

Primary productivity and nitrogen fixation (acetylene reduction) were estimated in two macroalgae-cyanobacteria associations from coral reef communities. Microdictyon sp., collected at 20 m on the reef proper and Laurencia sp., from 1-2 m on an inshore sand flat, showed high productivity rates: 1.15 and 1.90 mg C g-l h-I, respectively. Dissolved organic carbon excretion for both associations was less than 0.5% of the total carbon fixed. Nitrogenase activity was much higher in the Laurencia association than in the Microdictyofl association (9,61 vs, 1.04 f.Lg N g-l h-1); this probably was due to differences in the cyanobacterial epiflora, The effect of …

Aspects Of The Early Life History Of Loligo Pealei (Cephalopoda:Myopsida), Michael Vecchione

VIMS Articles

The long-finned squid Loligo pealei was the most common squid collected in 2 years of zooplankton sampling over the Middle Atlantic Bight off New Jersey and Virginia. Planktonic specimens of L. pealei were found in that area during spring, summer, and fa ll; there were no indications of multiple stocks. This species was captured in waters with a salinity range of 31.5 to 34.0 ppt, and was confined to coastal waters except when current conditions, such as the passage of a Gulf Stream eddy, resulted in strong, offshore surface transport. While abundances were greater in night surface samples, larger specimens …

Nitrate-Rich Groundwater Inputs To Discovery Bay, Jamaica - A Significant Source Of N To Local Coral Reefs, Ce D'Elia, Kl Webb, Jw Porter

VIMS Articles

The freshwater aquifer at Discovery Bay, Jamaica, produces subterranean springs and seeps near the reef at the mouth and along the southern and western shorelines of the bay. A strong inverse correlation exists between salinity and N concentration. Undiluted springwater typically contains 80 J.Lg at N per liter or more, primarily as nitrate, but is essentially devoid of P. Input from the springs is enough to reduce the salinity by one to several parts per thousand near these sites and appears to produce a significant enrichment of nitrogen to the bay.

Morphology Of Udonella Caligorum Johnston, 1835, And The Position Of Udonellidae In The Systematics Of Platyhelminths, A. V. Ivanov

Reports

The platyhelminth, Udonella, lives on parasitic copepod crustaceans and, according to the present system of classification belongs to monogenetic trematodes (Monogena) among which it is usually placed in the group Monopisthocotylea (Fuhrmann, 1928; Bychowsky, 1937; Dawes, 1946; Sproston, 1946). However, the morphology of Udonella has not yet been studied thoroughly by anyone, and a number of unusual features of the structure, ontogenesis and biology of this form cause doubts with regard to its belonging to the Monogena.

Ontogenesis And Phylogenetic Interrelationships Of Parasitic Flatworms, Boris E. Bychowsky

Reports

The purpose of this report is to establish relationship among individual groups of parasitic flatworms, namely, among monogenetic trematodes (Monogenea), digenetic trematodes (Digenea), tapeworms proper (Cestoda), and the so-called Cestodaria group (AMPHILINIDAE and GYROCGTYLIDAE). The attempt to establish the above-mentioned relationships is made to a variable degree for different groups. The main point of this report is the establishment of phylogenetic relationship in the Monogenea, not only for the entire group as a whole, but also for the individual families which are members of this group. We feel that another important point is our attempt at clarifying the phylogenetic position …

Nesting Of Loggerhead Sea Turtles, Caretta Caretta, In Virginia : Final Report, Richard A. Byles, John A. Musick

Reports

In May of 1980, we initiated a project to evaluate the nesting use of Virginia's Atlantic coastal beaches by the loggerhead sea turtle, Carretta caretta.

l'he loggerhead is considered an endangered species by the Commonwealth of Virginia and the species is on the federal threatened list.

Chesapeake Bay Bibliography - Volume V. Virginia And Maryland Waters, Marilyn Neff Loesch

Reports

The Chesapeake Bay Bibliography was initiated by the Virginia Institute of Marine Science in response to growing resource management problems of the Chesapeake Bay and its tributaries. With these problems came the realization that planning and management of such a great natural resource is an overwhelming task requiring the best available information. This bibliography, therefore, was undertaken to document existing sources of information, to help identify research and data gathering needs, and to develop a comprehensive research and information services programs for individuals interested in research on, and management of the natural resources of the Chesapeake Bay region.

The four …

Assessment Of Larval Striped Bass, Morone Saxatilis (Walbaum), Stocks In Maryland And Virginia Waters. Part Ii. Assessment Of Spawning Activity In Major Virginia Rivers. Segment 1. Distribution And Abundance Of Striped Bass Eggs And Larvae In The Upper York River System, Virginia, During Spring 1980, George C. Grant, John E. Olney

Reports

• Segment 1. Distribution and abundance of striped bass eggs and larvae in the upper York River system, Virginia, during spring 1980
• Segment 2. Distribution and abundance of striped bass eggs and larvae in the James and Chickahominy Rivers, Virginia, during spring 1981 : draft final report
• Segment 3. Pt.A. Distribution and abundance of striped bass eggs and larvae in the Rappahannock River during spring, 1982 : final report
• Segment 3. Pt.B. Dorsal and anal pterygiophore interdigitation patterns in four species of Morone (Teleostei, Percichthyidae) : an aid to larval identification

An Animal-Sediment Study In The Lower York River : February 1965 To February 1966, Dexter S. Haven, John N. Kraeuter, Richarad C. Krauter, Reinaldo Morales-Alamo

Reports

Certain invertebrates are more efficient than others in filtering solids from suspension. An equal degree of variability exists among benthic invertebrates in their ability to mix biodeposits into subsurface sediments. As a result of these differences, the degree to which suspended particulate matter and associated contaminants may be deposited or mixed into sediments may in part depend on the species present, which in turn may be dependent on sediment type. A number of investigators have examined the relation between benthic animal communities and their limiting physical factors (Smith, 1932; Mare, 1942; Dexter, 1947; Holm, 1949; Stic~1ey and Stringer, 1957; Sanders, …

Recreational Boating In Virginia: A Preliminary Analysis, Thomas Murray, Jon A. Lucy

Reports

Increasingly, recreational boating and its supporting industries are being affected by governmental policy and regulatory and allocation decisions. Clearly, those charged with making these decisions cannot understand the impacts of their decisions on related business, individuals, and their livelihoods without possessing some knowledge of the general linkages between boating and local economies. This initial estimate of the economic impacts of boating in Virginia is a first step in that direction. Hopefully, a better knowledge of the nature, recent growth and present magnitude of boating in the Commonwealth will insure that decisions made which influence its existence will be'based on the …

Study To Investigate Source And Transport Route Of Marine Organisms (Hydroids And Bryozoans) In Hampton Roads And Current Velocity Profiles Of The Pier 12 Area, Naval Station, Norfolk, Virginia, Robert J. Diaz, Evon P. Ruzecki

Reports

Entrainment of the hydroid (Sertularia argentea) and the fleshly bryozoan (Alcyonidium verrilli) in the sea suction of deep draft naval vessels (carriers) in the area of the Norfolk Naval station has been a recurring problem since the early 60's. These fouling organisms (the term fouling is used in this report to indicate clogging of hull bottom intake grates and cooling system condenser tube sheets and not the growth of organisms on any part of the vessel) are winter species, growing only in the fall and winter and not the summer. Unfortunately they are also the most abundant and widely distributed …

Continuous Plankton Records : Zooplankton And Net Phytoplankton In The Southern Regions Of The Middle Atlantic Bight, 1978-80, Cathy E. Meyer, Herbert Austin

Reports

The Virginia Institute of Marine Science (VIMS) is currently providing logistical and scientific support to the Atlantic Environmental Group's Ship of Opportunity program in accordance with a VIMS/NOAA service contract. This program includes a Continuous Plankton Recorder - Expendable Bathythermograph (CPR/XBT) survey along a standard transect off the Chesapeake .Bay. Analysis of biological and physical data for this particular route is being processed by VIMS according to the standardized procedure set forth by NOAA and the Institute for Marine Environmental Research (IMER) of the United Kingdom.