Estuaries
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Các bài báo tiêu biểu
Gas exchange in rivers and estuaries: Choosing a gas transfer velocity
Tập 24 Số 2 - Trang 312-317 - 2001
Effects of land-use change on nutrient discharges from the Patuxent River watershed
Tập 26 Số 2 - Trang 244-266 - 2003
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 ...
Effects of sediment contaminants and environmental gradients on macrobenthic community trophic structure in Gulf of Mexico estuaries
Tập 23 Số 3 - Trang 411-424 - 2000
Macrobenthic communities from estuaries throughout the northern Gulf of Mexico
were studied to assess the influence of sediment contaminants and natural
environmental factors on macrobenthic community trophic structure. Community
trophic data were also used to evaluate whether results from laboratory sediment
toxicity tests were effective indicators of site-specific differences in benthic
trophic ...
Hypersaline bottom water: Peard Bay, Alaska
Tập 2 Số 3 - Trang 189-193 - 1979
Hypersaline bottom conditions have been observed in Peard Bay, Alaska. The water
appears to be renewed on an annual basis. Although it does not seem to affect
permafrost degradation rates in Peard Bay, similar pools of water along the
Beaufort Sea coast could greatly increase the rates of permafrost degradation.
Order of magnitude estimates suggest that the hypersaline waters do not become
anoxic.
Infaunal community development of artificially established salt marshes in North Carolina
Tập 17 Số 2 - Trang 489-500 - 1994
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...
Temporal variability of remotely sensed suspended sediment and sea surface temperature patterns in Mobile Bay, Alabama
Tập 13 Số 2 - Trang 155-160 - 1990
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...
Nitrogen limitation of phytoplankton in a shallow embayment in northern Puget Sound
Tập 20 Số 4 - Trang 759-769 - 1997
The effect of nutrient enrichments on natural phytoplankton assemblages was
examined in six experiments conducted from June to October 1992. Short-term (4 d
to 7 d) nutrient enrichment bioassays were incubated in situ in Padilla Bay, a
slough-fed estuary in northern Puget Sound, Washington. Ammonium additions (15
μM) significantly (p<0.001) stimulated phytoplankton biomass accumulation during
all ...
Mixing behavior of dissolved organic carbon and its potential biological significance in the Pawcatuck River Estuary
Tập 17 Số 3 - Trang 521-536 - 1994
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 ...
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
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...
The influence of nitrogen level, form, and application method on the growth response ofSpartina alterniflora in North Carolina
Tập 2 Số 2 - Trang 106-112 - 1979
The influence of nitrogen level, form, and application method on the growth
response of short and tallSpartina alterniflora was determined in a North
Carolina salt marsh. The application of various nitrogen levels increased the
aerial standing crop of shortSpartina as much as 172%, but had no significant
effect on that of the tall form. Band application produced a significantly
greater yield respo...