Marine Biology Commons^™

Pagurapseudes (Crustacea: Tanaidacea) In Southeastern Florida: Functional Morphology, Post-Marsupial Development, Ecology And Shell Use, Charles Messing

Oceanography Faculty Theses and Dissertations

Members of the genus Pagurapseudes occupy vacant microgastropod shells. Functional and behavioral convergence with paguridean decapods (hermit crabs) is treated using a combination of gross morphological, histological and scanning electron microscopic analyses, as well as observations of living animals. Post-embryological development is described and compared with that of other tanaidaceans. The proposed life history differs from that of other tanaidaceans in several respects and is the first described for any member of the suborder Monokonophora based on investigations using experimentally reared specimens. Variations in a population over the course of 1.5 years are discussed as are apparent habitat preferences. Preferences …

Sublethal Stress In Escherichia-Coli - Function Of Salinity, I. C. Anderson, Mw Rhodes, H Kator

VIMS Articles

Sublethal stress in Escherichia coli was detected in various test media after exposure (in vitro) to seawater of various salinities. Stress was measured with an electrochemical detection technique and a,-galactosidase assay. Test media included EC medium, medium A-1, and tryptic soy broth modified to contain lactose for /?-galactosidase assay experiments. Stress was defined as the difference between a predicted electrochemical response time calculated for unstarved cells from a standard curve and the observed electrochemical response time for cells starved in seawater. The higher the salinity, the greater the stress for all test media examined. Stress was most pronounced in EC …

A Water Quality Modeling Study Of Lynnhaven Bay, Virginia, A. Y. Kuo, P. V. Hyer

Reports

The City of Virginia Beach has proposed channel dredging in the Eastern Branch of the Lynnhaven Bay for the purposes of recreations and drainage improvement. It is therefore necessary to examine the possible environmental results of such a project. This environmental assessment is complicated by another proposal to modify the Lynnhaven system. The U.S. Army Corps of Engineers has proposed adding a second canal leading to the Eastern Branch, in order to reduce flood damage. This canal project would affect the Lynnhaven system by increasing nonpoint sources of pollution and by increasing the tidal prism. The water quality consequences of …

Number 9 (November 1979), Southern Fishes Council

Southeastern Fishes Council Proceedings

The Status of the Southern Redbelly Dace, Chrosomus erythrogaster in Mississippi. By R.C. Cashner, et al., plus News Notes, 5 pp.

News Notes, Southeastern Fishes Council

Southeastern Fishes Council Proceedings

No abstract provided.

The Status Of The Southern Redbelly Dace, Chrosomus Erythrogaster, In Mississippi, Robert C. Cashner, Royal D. Suttkus, Frank L. Bezold, James M. Grady

Southeastern Fishes Council Proceedings

No abstract provided.

A Description Of The Commercial Marine Fisheries Of Virginia, James Zaborski

Reports

The magnitude and valtte of the fisheries of Virginia are significant. Expansion of some fisheries since 1977 in conjunctio~ with rising prices for fishery products in general has increased the importance of this industry to the Commonwealth. Virginia's fisheries are varied, some segments of the industry such as the oyster fishery have been in existence since colonial days; others, such as the surf clam fishery, are relatively new. The size and composition of the different industries also differ widely. The menhaden fishery exempli~ies what might be termed corporate fishing while the blue crab fishery is conducted by numerous individual owner-operators. …

A Water Quality Study Of The Eastern Branch Of The Lynnhaven Bay, Virginia, Albert Y. Kuo, Paul V. Hyer

Reports

To alleviate the flooding in the drainage basin of the Lynnhaven River at Virginia Beach, Virginia, the U. S. Army Corps of Engineers has proposed to improve the waterways along the headwater of the river (House Document, 1976). The improvements include the widening and deepening of the existing canal, and the dredging of a new canal. As a result of the proposed project and the present rate of increase in area development, the freshwater runoff from the drainage basin and the tidal prism in the system are expected to increase. Since nonpoint sources are the only source of pollutants to …

X-Rays Provide Researchers With Views Of Coral Growth Patterns, Richard E. Dodge

Marine & Environmental Sciences Faculty Articles

No abstract provided.

Structure Of A Subtidal Benthic Community Near Cape Charles, Virginia, R. Michael Ewing

Biological Sciences Theses & Dissertations

Species composition, distribution, and abundance of benthic invertebrates of a subtidal community were examined at a location on the lower Delmarva Peninsula near Cape Charles, Virginia. Macrobenthos was sampled quarterly between June, 1977 and June, 1978 at nine sites along a transect in Old Plantation Creek and the adjacent offshore area. Spatial and temporal patterns of numerically important species are discussed.

Sampling sites and species were grouped by a numerical classification strategy which consisted of the Bray-Curtis similarity measure and group-average clustering. Three faunal assemblages were identified with the aid of constancy and fidelity nodal analyses: (1) a tidal creek …

Evaluation Of Ventra Vacs At Pier 12 Naval Base, Norfolk, Virginia, Gaines C. Ho, Robert J. Diaz, Bruce J. Neilson

Reports

No abstract provided.

Gear Feasibility Study For The Cownose Ray, Rhinoptera Bonasus, J. V. Merriner, J. W. Smith

Reports

No abstract provided.

Atmospheric Forcing Of The Bight Of Abaco, Peter M. Smith

HCNSO Student Theses and Dissertations

No abstract provided.

A Report To The Oyster Industry Of Virginia On The Biology And Management Of The Cownose Ray (Rhinoptera Bonasus, Mitchill) In Lower Chesapeake Bay, John V. Merriner, Joseph W. Smith

Reports

The purpose of this report is to: (1) suggest reasons for the recently observed cownose ray predation on Rappahannock River oyster beds and the apparent increased abundance of the ray, and (2) recommend short- and long-term methods to control and/or manage cownose ray predation on commercially important sh1ellfish beds.

Part I - The Distribution And Depuration Of Kepone In American Eels, Anguilla Rostrate, From The James River, Virginia. Part Ii - An Economic Analysis Of The Commerical Depuration Of Kepone Contaminated American Eels, Anguilla Rostrata, From The James River, Virginia, Marion Y. Hedgepeth, Linda L. Stehlik, Charles C. Sharman Jr.

Reports

No abstract provided.

Distribution And Abundance Of Submerged Aquatic Vegetation In The Lower Chesapeake Bay, Virginia, Robert J. Orth, Kenneth A. Moore, Hayden H. Gordon

Reports

The distribution and abundance of submerged aquatic vegetation (SAV) in the lower Chesapeake Bay and its tributaries were delineated with color aerial photography and surface information. Over 8500 hectares of SAV were identified on 31 topographic quadrangles. To enable computer retrieval of the aerial resource information, all information from the 1978 mapping effort was entered into a data base based on the Universal Transverse Mercator coordinate system.

The greatest concentrations of SAV were found at the mouths of the largest tidal rivers and creeks along the Chesapeake Bay shoreline, and to the east of Tangier and Great Fox Islands. Freshwater …

Reproductive Variability In Lytechinus Variegatus (Echinodermata: Echinoidea) From Different Habitats In A Florida West Coast Estuary, Robert G. Ernest

USF Tampa Graduate Theses and Dissertations

Lytechinus variegatus (Lamarck, 1916) is a sea urchin inhabiting shallow sub-littoral environments from Beaufort, North Carolina to southern Brazil. Although it has been collected extensively for embryological material in the southeastern United States (Harvey, 1956; Brookbank, 1968). there have been relatively few studies of its reproduction. Gonad indices were used to follow its annual reproductive cycle at Bermuda and Miami (Moore et al., 1963; Moore and Lopez, 1972), while elsewhere, only observations of spawn- ing have been reported (Boolootian, 1966).

In the Anclote estuary near Tarpon Springs, Florida, Lytechinus is the most conspicuous of the macroepibenthic invertebrates, and where requisite …

Recreational Atlantic Mackerel (Scomber Scombrus) Fishery In Virginia, 1978, Joseph Smith

Reports

No abstract provided.

Middle Atlantic Outer Continental Shelf Environmental Studies Volume 1: Executive Summary, E. M. Burreson, H. J. Knebel

Reports

Increasing demand for petroleum and natural gas in the United States has led to a need for development of reliable new domestic sources. The Outer Continental Shelf of the United States holds great interest among the oil companies for possible exploration and development of oil and gas resources to meet this need. This interest was demonstrated for the Middle Atlantic Outer Continental Shelf in the oil companies' response to the lease sale conducted in August 1976. Of the 154 tracts comprising 876,750 acres offered for lease in August 1975 for exploratory drilling in the Baltimore Canyon Trough (Figure 1), oil …

Feeding Morphologies And Distribution Patterns Of Marine Cladocera In The Lower Chesapeake Bay, Sandra Layne Gilchrist

OES Theses and Dissertations

Temporal and spatial distributions of marine cladocera in the lower Chesapeake Bay estuary were observed over a year-long sampling period. The distributions of cladoceran species throughout the Bay were studied in relation to temperature and salinity. A survey of the species over the entire Bay is included to establish distribution patterns of the various species during a short time period.

Theoretical mathematical principles were used to predict feeding abilities of the Bay species. Mouthparts are described qualitatively and quantitatively to infer function. A mandibular index developed by Itoh (1970) was revised and employed in evaluating feeding methods interspecifically and interspecifically. …

The Spatial And Temporal Distribution Of Fish Eggs And Larvae In Hempstead Bay Estuary, Joseph Adelard Lessard

OES Theses and Dissertations

The ichthyoplankton of Hempstead Bay estuary was sampled from December 1972 to mid March 1974. Eleven stations were sampled by towing a 0.5 meter diameter plankton net. Eggs were most abundant during June and July with an average concentration calculated to be above 5,500/100m³. Egg densities were the lowest during the fall and winter. Larvae were most frequently taken from March through July with densities varying greatly among the samples. The eggs of Brevoortia tyrannus, Anchoa mitchilli, Tautoga onitis, Tautogolabrus adspersus, and Scophthalmus aguosus and the larvae of Menidia menidia, Ammodvtes hexapterus and Pseudopleuronectes americanus constituted most …

Isolation And Identification Of Yeasts From The Barren River, Richard Vanenk

Masters Theses & Specialist Projects

The Barren River was sampled twice monthly for one year to obtain data on aquatic yeasts. Sites upstream and downstream of the Bowling Green sewage plant, as well as the sewage effluent, were sampled to ascertain if the effluent had any effect on the yeast population of the river. Sporadic yeast counts were obtained which averaged 40 CFU/ml for the effluent, while the river averaged 15 CFU/ml. A total of 318 yeasts were isolated and identified during the study, including 16 different genera with Cryptococcus being the most common. Cryptococcus laurentii occurred most frequently of the 67 different species identified. …

Estuarine Response To Nutrient Enrichment, A Counterpart Of Eutrophication : An Annotated Bibliography, K. L. Webb, D. M. Hayward, J. M. Baker, B. Murray

Reports

This work is a result of our efforts to compile the literature related to the results of nutrient enrichment of estuaries. It consists of two related publications, a bibliography and an annotated bibliography; both works are accompanied by an index which applies to either bibliography. An attempt has been made to include some key papers related to various processes, eg. nutrient uptake by phytoplankton, which influence or participate in the response process.

Some Aspects Of The Ecology Of Larval Fishes In Rough River Lake, Kentucky, Greg Allen Kindschi

Masters Theses & Specialist Projects

In Rough River Lake, Kentucky, some aspects of the ecology of larval and juvenile fishes were investigated from April – August, 1978. Larval fishes were collected weekly from the upper reaches of the lake from the surface and bottom, during daylight and dark periods.

Twenty-three species and three categories of unknown larval and juvenile fishes, represented by 177,119 individuals, were collected. White bass and logperch larvae were the first to appear on April 15 with surface water temperatures of 18.5 C. Gizzard shad larvae dominated net collection while Lepomis spp. were the second most abundant. Larvae were primarily concentrated …

Distributional Notes On Fishes From Northern Georgia With Comments On The Status Of Rare Species, Richard T. Bryant, Bruce H. Bauer, Michael G. Ryon, Wayne C. Starnes

Southeastern Fishes Council Proceedings

No abstract provided.

Summary Of Shoreline Situation Reports For Virginia's Tidewater Localities, Carl H. Hobbs Iii, Dennis W. Owen, Lynne C. Morgan

Reports

This summary report marks the completion of the Shoreline Situation Report project. For over six years project team members with the Department of Geological Oceanography at the Virginia Institute of Marine Science have inventoried over 5,000 miles of shoreline in Tidewater Virginia. The methodology was developed and evaluated with funding through the Chesapeake Research Consortium, Inc. from the Research Applied to National Needs (RANN) program of the National Science Foundation. After preliminary evaluation as to its worth, the project became part of Virginia's Coastal Resources Management Program, supported by the Office of Conmerce and Resources with funds provided by the …

Number 8 (April 1979), Southern Fishes Council

Southeastern Fishes Council Proceedings

Distributional Notes on Fishes from Northern Georgia with Comments on the Status of Rare Species. By R.T. Bryant, et al., 4 pp.

A Two-Dimensional Hydrodynamic And Biogeochemical Water Quality Model And It's Application To The Lower James River, H. S. Chen, R. J. Lukens, C. S. Fang

Reports

No abstract provided.

Manual Of Water Quality Models For Virginia Estuaries, Albert Y. Kuo, Paul V. Hyer, C. S. Fang

Reports

It is not the purpose of this manual to make a nonmodeler able to develop a model by reading through it, since no manual of this nature can accomplish such a task. This manual is intended to increase the planner or manager's options by acquainting him with various types of models and informing him of the availability of currently working models. This manual contains the following: 1. A scheme indicating the types of water quality models which could be constructed, i.e. an overview of choices in models. 2. A brief description of each type of models developed under the Cooperative …

James River Hydraulic Model Study With Respect To The Proposed Third Bridge-Tunnel Causeway In Hampton Roads, C. S. Fang

Reports

No abstract provided.