Voyage of the United States frigate Potomac : under the command of Commodore John Downes, during the circumnavigation of the globe, in the years 1831, 1832, 1833, and 1834; including a particular account of the engagement at Quallah-Battoo, on the coast of Sumatra; with all the official documents relating to the same /

Mode of access: Internet.

Cruise of the United States frigate Potomac round the world : during the years 1831-34 ; embracing the attack on Quallah-Battoo ... /

Mode of access: Internet.

Voyage of the United States frigate Potomac, under the command of Commodore John Downes, during the circumnavigation of the globe, in the years 1831, 1832, 1833, and 1834.

Microfilm. Ann Arbor, Mich., University Microfilms [n.d.] (American culture series, Reel 352.6)

An Analysis of 1974 Striped Bass spawning success in the Potomac Estuary.

ABSTRACT: The Potomac River Fisheries Program is concerned with the longterm effects of power plant ichthyoplankton entrainment on striped bass(hforone smatilis) recruitment. Since striped bass population fluctuations are determined strongly by environmental conditions during spawning and early development, assessment of power plant-induced ichthyoplankton mortalities must consider the mechanisms controlling spawning success. Ichthyoplankton distributions for 1974, spawning population abundance and fecundity, and environmental conditions were considered for analysis. Loss of the early part of the spawn (including the peak) accounted for the highest mortalities among ichthyoplankton. This was due to the proximity of these distributions to the salt wedge where transport into regions un!ivorable to survival seems to have occurred. The later, successful portion of the spawn occurred further upstream, in fresh tidal portions of the river. The sequence of events Ieading to an assessment of factors affecting ichthyoplankton surnnl are evaluated. Due to high early mortalities in ichthyoplankton, 1974 spawning success was low, and a poor yearclass is projected.

Simulating the Lateral Transport of lchthyoplankton in the Potomac Estuary

Previous simulations of potential ichthyoplankton entrainment by power generating stations on the Potomac estuary have not included the influence of lateral transport in distributing eggs and larvae over the nursery area. Therefore, two-dimensional, vertically-averaged hydrodynamic and kinematic models of passive organism transport were developed to represent advective and dispersive processes near the proposed Douglas Point Nuclear Generating Station. Although the more refined model did not substantially alter the estimate of ichthyoplankton entrainment, it did reveal that lateral inhomogeneities in hydrodynamics could engender several fold differences in entrainment probabilities on opposite sides of the estuary. Models of higher resolution and greater biological detail did not project greater total entrainment by the Douglas Point plant, because the volume of nontidal flow past the site was large in comparison to the proposed rate of cooling water withdrawal.

Egg production, spawning biomass and factors influencing recruitment of striped bass in the Potomac River and the upper Chesapeake Bay

Ichthyoplankton surveys in the Potomac River and Upper Chesapeake Bay were carried out in 1989 to estimate striped bass egg productions, age specific spawning biomasses of adult females, cohort-specific larval growth and mortality rates, and hatch dates of 8.0 mm larvae survivors. Possible consequences to recruitment of environmental factors were examined in 1989 and for data collected in 1987-1988. The temporal and spatial occurrences and distributions of eggs and larvae In both spawning areas are described and discussed in relation to environmental factors (temperature, rainfall, river discharge, pH, conductivity, zooplankton abundances) (PDF contains 319 pages)

Proceedings of a court of inquiry, convened on board the United States frigate the President, in the harbour of New York, on the thirteenth day of August, 1811, pursuant to the following warrant : To Stephen Decatur, esquire, a captain in the Navy of the United States. --

Caption title.

Tourism and the environment: a case study of Frigate Bay, St. Kitts

Includes bibliography

Rock Creek and Potomac Parkway, George Washington Memorial Parkway, Suitland Parkway, Baltimore-Washington Parkway /

"NPS D-84"--P. [3] of cover.

Preliminary study of sediment sources and transport in the Potomac River Basin /

At head of title: U.S. Department of the Interior, Geological Survey and Interstate Commission on the Potomac River Basin.

Potomac landings,

Map on lining-paper.

Test of a refrigerator car equipped with dry ice system of refrigeration at Potomac Yards, Alexandria, Va., January 11-22, 1952.

Mode of access: Internet.