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Coral reefs

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Articles 151 - 180 of 181

Full-Text Articles in Marine Biology

Fall 1993, Nsu Oceanographic Center Jan 1993

Fall 1993, Nsu Oceanographic Center

Currents

No abstract provided.


Spring 1993, Nsu Oceanographic Center Jan 1993

Spring 1993, Nsu Oceanographic Center

Currents

No abstract provided.


Summer 1993, Nsu Oceanographic Center Jan 1993

Summer 1993, Nsu Oceanographic Center

Currents

No abstract provided.


Winter 1993, Nsu Oceanographic Center Jan 1993

Winter 1993, Nsu Oceanographic Center

Currents

No abstract provided.


Summer 1992, Nsu Oceanographic Center Jan 1992

Summer 1992, Nsu Oceanographic Center

Currents

No abstract provided.


Fall 1992, Nsu Oceanographic Center Jan 1992

Fall 1992, Nsu Oceanographic Center

Currents

No abstract provided.


Spring 1992, Nsu Oceanographic Center Jan 1992

Spring 1992, Nsu Oceanographic Center

Currents

No abstract provided.


Winter 1992, Nsu Oceanographic Center Jan 1992

Winter 1992, Nsu Oceanographic Center

Currents

No abstract provided.


Winter 1991, Nsu Oceanographic Center Jan 1991

Winter 1991, Nsu Oceanographic Center

Currents

No abstract provided.


Spring 1991, Nsu Oceanographic Center Jan 1991

Spring 1991, Nsu Oceanographic Center

Currents

No abstract provided.


Summer 1991, Nsu Oceanographic Center Jan 1991

Summer 1991, Nsu Oceanographic Center

Currents

No abstract provided.


Fall 1991, Nsu Oceanographic Center Jan 1991

Fall 1991, Nsu Oceanographic Center

Currents

No abstract provided.


Winter 1990, Nsu Oceanographic Center Jan 1990

Winter 1990, Nsu Oceanographic Center

Currents

No abstract provided.


Spring 1990, Nsu Oceanographic Center Jan 1990

Spring 1990, Nsu Oceanographic Center

Currents

No abstract provided.


Summer 1990, Nsu Oceanographic Center Jan 1990

Summer 1990, Nsu Oceanographic Center

Currents

No abstract provided.


Fall 1990, Nsu Oceanographic Center Jan 1990

Fall 1990, Nsu Oceanographic Center

Currents

No abstract provided.


Fall 1989, Nsu Oceanographic Center Jan 1989

Fall 1989, Nsu Oceanographic Center

Currents

No abstract provided.


Summer 1989, Nsu Oceanographic Center Jan 1989

Summer 1989, Nsu Oceanographic Center

Currents

No abstract provided.


Winter 1989, Nsu Oceanographic Center Jan 1989

Winter 1989, Nsu Oceanographic Center

Currents

No abstract provided.


Spring 1989, Nsu Oceanographic Center Jan 1989

Spring 1989, Nsu Oceanographic Center

Currents

No abstract provided.


Winter 1988, Nsu Oceanographic Center Jan 1988

Winter 1988, Nsu Oceanographic Center

Currents

No abstract provided.


Summer 1988, Nsu Oceanographic Center Jan 1988

Summer 1988, Nsu Oceanographic Center

Currents

No abstract provided.


Spring 1988, Nsu Oceanographic Center Jan 1988

Spring 1988, Nsu Oceanographic Center

Currents

No abstract provided.


Fall 1988, Nsu Oceanographic Center Jan 1988

Fall 1988, Nsu Oceanographic Center

Currents

No abstract provided.


Summer 1987, Nsu Oceanographic Center Jan 1987

Summer 1987, Nsu Oceanographic Center

Currents

No abstract provided.


Fall 1987, Nsu Oceanographic Center Jan 1987

Fall 1987, Nsu Oceanographic Center

Currents

No abstract provided.


The Effect Of Dispersed Oil On The Calcification Rate Of The Reef-Building Coral Diploria Strigosa, Richard E. Dodge, A. H. Knap, Sheila C. Wyers, H. R. Frith, T. D. Sleeter, S. R. Smith Jan 1985

The Effect Of Dispersed Oil On The Calcification Rate Of The Reef-Building Coral Diploria Strigosa, Richard E. Dodge, A. H. Knap, Sheila C. Wyers, H. R. Frith, T. D. Sleeter, S. R. Smith

Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures

Hermatypic corals represent environmentally and economically important components of the reef ecosystem. Oil spills and clean-up operations in reef areas are potential sources of pollution impact. This paper presents an evaluation of the calcification rate of specimens of the reef-building coral Diploria strigosa in response to 24 hour treatments of chemically dispersed oil at concentrations of 20 ppm. The concentrations and durations were chosen to represent a scenario of a short-term oil spill treated with dispersant passing over a coral reef.

Calcification rates were determined by the buoyant weight technique at several day intervals for up to 29 days following …


Skeletal Extension, Density And Calcification Of The Reef Coral, Montastrea Annularis: St. Croix, U.S. Virgin Islands, Richard E. Dodge, Garrett W. Brass Mar 1984

Skeletal Extension, Density And Calcification Of The Reef Coral, Montastrea Annularis: St. Croix, U.S. Virgin Islands, Richard E. Dodge, Garrett W. Brass

Marine & Environmental Sciences Faculty Articles

Parameters of the annual and subannual skeletal growth of 61 Montastrea annularis corals, collected at a variety of shallow depth sites on reefs of St. Croix, U.S. Virgin Islands, are determined by X-radiography and scanning densitometry for each year in the 10-year period, 1970–1979. Extension (linear growth) of the coral skeleton is correlated negatively with bulk density (mass per unit volume) and positively with calcification (mass addition). Density and mass are slightly positively correlated. No one parameter, however, is a perfect predictor of another. At least two parameters, from which the third can be calculated, are required for complete description …


Environmental Correlates Of Hermatypic Coral (Montastrea Annularis) Growth On The East Flower Gardens Bank, Northwest Gulf Of Mexico, Richard E. Dodge, Judith C. Lang Jan 1983

Environmental Correlates Of Hermatypic Coral (Montastrea Annularis) Growth On The East Flower Gardens Bank, Northwest Gulf Of Mexico, Richard E. Dodge, Judith C. Lang

Marine & Environmental Sciences Faculty Articles

Time series of annual linear growth increments from 12 Montastrea annularis (E. and S.) collected at the East Flower Gardens Bank reef in the northwestern Gulf of Mexico have a common pattern. This is best expressed in an index master chronology (average by year of the annual percentage deviations from the mean of each coral.)

Comparisons with time series of environmental data indicate that coral extension rates vary positively with seasonal (February through May - 4 months) surface water temperature and negatively with annual discharge of the Atchafalaya River. We propose that secular variations of water temperature and other parameters …


Quantitative Reef Assessment Studies In Bermuda: A Comparison Of Methods And Preliminary Results, Richard E. Dodge, Alan Logan, Arnfried Antonius Jul 1982

Quantitative Reef Assessment Studies In Bermuda: A Comparison Of Methods And Preliminary Results, Richard E. Dodge, Alan Logan, Arnfried Antonius

Marine & Environmental Sciences Faculty Articles

To compare in quantitative terms both ecological characteristics of the stony coral fauna at various reef sites in Bermuda and available assessment methodologies, we present a study of four separate methods at each of three reef sites. Three plotless (Intersected-length, Quarter point, Point) and one quadrat (Belt-quadrat) methods were employed. Each technique gave similar results but had inherent advantages and disadvantages which involve trade-offs in quantity and type of information generated and time required for use.

Pooling of method results revealed that total coral coverage was highest at North Rock (26%), intermediate at Three Hill Shoals (17%), and lowest at …