Results 231 to 240 of about 72,889 (292)

Competition Among Sessile Organisms on Coral Reefs

2010
Competition among sessile organisms is a major process on coral reefs, and is becoming more important as anthropogenic disturbances cause shifts in dominance to non-reef builders such as macroalgae, soft corals, ascidians, and corallimorpharians. Long-term monitoring and field experiments have demonstrated that competition for limited space can exert ...
Kathleen M. Morrow, Nanette E. Chadwick
openaire   +2 more sources

Distribution of dissolved organic carbon and nitrogen in a coral reef

Coral Reefs, 2011
Dissolved organic matter (DOM) concentrations in a fringing coral reef were measured for both carbon and nitrogen with the analytical technique of high-temperature catalytic oxidation. Because of high precision of the analytical system, not only the concentrations of dissolved organic carbon and nitrogen (DOC and DON, respectively) but the C:N ratio ...
Tanaka, Y., Miyajima, T., Watanabe, A., KAZUO NADAOKA, Yamamoto, T., Ogawa, H.   +5 more
openaire   +2 more sources

Consequences of Coral Bleaching for Sessile Reef Organisms

2009
Sessile organisms, such as corals and erect algae, provide a complex architecture on coral reefs that is important for capturing light and utilizing dissolved gases and plankton to maintain high primary production (Enriques et al. 2005; Finelli et al. 2006). These sessile organisms also provide refuge and shelter for many mobile animals (Chap. 9).
McClanahan, T.R., Weil, E., Cortés, J., Baird, A.H., Ateweberhan, M.   +4 more
openaire   +2 more sources

Diseases of Coral Reef Organisms

1997
All coral reef organisms are susceptible to diseases, as are terrestrial organisms, but studying these diseases can be more difficult and much remains to be learned. Although health impairments of corals were first recognized only in the early 1970s, increasing numbers of infectious and non-infectious diseases, causing morbidity and mortality in ...
openaire   +2 more sources

Biological and remote sensing perspectives of pigmentation in coral reef organisms [PDF]

, 2002
Coral reef communities face unprecedented pressures on local, regional and global scales as a consequence of climate change and anthropogenic disturbance. Optical remote sensing, from satellites or aircraft, is possibly the only means of measuring the effects of such stresses at appropriately large spatial scales (many thousands of square kilometres ...
Hedley JD, Mumby PJ
openaire   +3 more sources

From molecules to moonbeams: Spawning synchrony in coral reef organisms

Invertebrate Reproduction & Development, 2008
Summary A mini-symposium at the 11th International Coral Reef Symposium highlighted significant advances towards understanding the factors controlling reproductive timing and spawning synchrony in coral reef organisms. Studies of the phenology of reef organisms are finally moving beyond the purely descriptive and researchers are starting to explore the
Guest, J.R., Baird, A.H., Clifton, K.E., Heyward, A.J.   +3 more
openaire   +3 more sources

Coral and Other Organic Reefs in Geologic Column

AAPG Bulletin, 1950
The several definitions and meanings of the word reef are considered and also the application of the term bioherm proposed by Cumings and Shrock. Reefs from the geological point of view are defined and the characteristics of such reefs are presented. Reefs in the geologic column from the Huronian to and including the Tertiary are described.
openaire   +2 more sources

Organic Matter Oxidation and Aragonite Diagenesis in a Coral Reef

SEPM Journal of Sedimentary Research, 1993
ABSTRACT A combination of field and theoretical work is used to study controls on the saturation state of aragonite inside a coral-reef framework. A closed-system ion-speciation model is used to evaluate the effect of organic-matter oxidation on the saturation state of aragonite.
openaire   +2 more sources

Rapid Smothering of Coral Reef Organisms by Muddy Marine Snow

Estuarine, Coastal and Shelf Science, 2000
Abstract Estuarine mud, when resuspended in nutrient-rich near-shore water, aggregates to marine snow, and within minutes to hours can exert detrimental or even lethal effects on small coral reef organisms. In a pilot study, estuarine mud was suspended in near-shore and off-shore waters of the Great Barrier Reef to a final concentration of 170 mg l−1.
Eric Wolanski, Katharina E. Fabricius, Katharina E. Fabricius   +2 more
openaire   +2 more sources

Evolutionary ecology of colonial reef-organisms, with particular reference to corals [PDF]

Biological Journal of the Linnean Society, 1983
Sedentary reef-organisms such as sponges, colonial coelenterates, bryozoans and compound ascidians produce repeated modules (aquiferous systems, polyps, zooids) as they grow. Modular construction alleviates constraints on biomass imposed by mechanical and energetic factors that are functions of the surface area to volume ratio.
openaire   +1 more source