The economic effects of harmful algal blooms in the United States: Estimates, assessment issues, and information needs Tập 25 Số 4 - Trang 819-837 - 2002
Hoagland, P., Anderson, D. M., Kaoru, Y., White, A. W.
During the last several decades, harmful algal bloom (HAB) events have been
observed in more locations than ever before throughout the United States.
Scientists have identified a larger number of algal species involved in HABs,
more toxins have been uncovered, and more fisheries resources have been
affected. Whether this apparent increase in HAB events is a real phenomenon or
is the result of incr... hiện toàn bộ
A comparison of residence time calculations using simple compartment models of the Altamaha River estuary, Georgia Tập 25 Số 6 - Trang 1304-1317 - 2002
Sheldon, Joan E., Alber, Merryl
The residence and flushing times of an estuary are two different concepts that
are often confused. Flushing time is the time required for the freshwater inflow
to equal the amount of freshwater originally present in the estuary. It is
specific to freshwater (or materials dissolved in it) and represents the transit
time through the entire system (e.g., from head of tide to the mouth). Residence
tim... hiện toàn bộ
Infaunal community development of artificially established salt marshes in North Carolina Tập 17 Số 2 - Trang 489-500 - 1994
Sacco, John N., Seneca, Ernest D., Wentworth, Thomas R.
In recent years, artificial establishment of Spartina alterniflora marshes has
become a common method for mitigating impacts to salt marsh systems. The
vegetative component of artificially established salt marshes has been examined
in several studies, but relatively little is known about the other aspects of
these systems. This study was undertaken to investigate the infaunal community
of artifici... hiện toàn bộ
Effects of land-use change on nutrient discharges from the Patuxent River watershed Tập 26 Số 2 - Trang 244-266 - 2003
Weller, Donald E., Jordan, Thomas E., Correll, David L., Liu, Zhi-Jun
We developed an empirical model integrating nonpoint source (NPS) runoff, point
sources (PS), and reservoir management to predict watershed discharges of water,
sediment, organic carbon, silicate, nitrogen, and phosphorus to the Patuxent
River in Maryland. We estimated NPS discharges with linear models fit to
measurements of weekly flow and 10 material concentrations from 22 study
watersheds. The ... hiện toàn bộ
Transient hydrodynamic and salinity simulations in the Chesapeake Bay network Tập 6 Số 4 - Trang 356-363 - 1983
Thatcher, M. Llewellyn, Najarian, Tavit O.
A transient network model is applied to the Chesapeake Bay and its tributary
estuaries. Calibration of the model is based on only three external parameters:
a friction factor that is spatially described, and two global constants required
to calibrate a dynamic dispersion relationship that depends on both the local
salinity gradient and hydraulic conditions. The transient hydrodynamics and the
tran... hiện toàn bộ
Mixing behavior of dissolved organic carbon and its potential biological significance in the Pawcatuck River Estuary Tập 17 Số 3 - Trang 521-536 - 1994
Doering, Peter H., Oviatt, Candace A., McKenna, James H., Reed, Laura W.
The distributions of dissolved organic carbon (DOC), phytoplankton biomass (as
measured by in vivo fluorescence), total nitrogen and phosphorus, and light
extinction were observed on 10 cruises during 1989 and 1990 in the Pawcatuck
River estuary located in southern Rhode Island. In the lower estuary, the
distance of peak phytoplankton biomass from the head of the estuary was
positively correlated ... hiện toàn bộ
Temporal variability of remotely sensed suspended sediment and sea surface temperature patterns in Mobile Bay, Alabama Tập 13 Số 2 - Trang 155-160 - 1990
Rucker, James B., Stumpf, Richard P., Schroeder, William W.
Distribution patterns of suspended sediments and sea surface temperatures in,
Mobile Bay were derived from algorithms using digital data from the visible,
near infrared, and infrared channels of the Advanced Very High Resolution
Radiometer (AVHRR) on the NOAA-TIROS-N satellite. Closely spaced AVHRR scenes
for January 20, 24, and 29, 1982, were compared with available environmental
information take... hiện toàn bộ