Results 131 to 140 of about 41,562 (167)
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Widespread but variable toxicity in scleractinian corals

Toxicon, 1990
Aqueous and/or aqueous ethanol extracts were made of 58 scleractinian species from 11 families, collected from Heron Island, Great Barrier Reef. At least one extract from each of 53 species (91%) exhibited activity against at least one bioassay system.
Gunthorpe L., Cameron A.M.
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Sexual Reproduction of Mediterranean Scleractinian Corals

2016
The reproduction of scleractinian corals is a fundamental process for maintaining their populations and is essential for understanding the corals’ ecology. However, it has been described in less than 30 % of known species. The majority of these studies were carried out in the tropics.
AIRI, VALENTINA   +3 more
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Metabolism of estrogens and androgens by scleractinian corals

Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 2003
Estrogens and androgens are steroids that act as reproductive hormones in vertebrates. These compounds have also been detected in reef-building corals and other invertebrates, where they are hypothesized to act as bioregulatory molecules. Experiments were conducted using labeled steroid substrates to evaluate metabolism of estrogens and androgens by ...
Ann M, Tarrant   +4 more
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The relationship of the scleractinian corals to the rugose corals

Paleobiology, 1980
The Mesozoic-Cenozoic coral Order Scleractinia has been suggested to have originated or evolved (1) by direct descent from the Paleozoic Order Rugosa or (2) by the development of a skeleton in members of one of the anemone groups that probably have existed throughout Phanerozoic time.
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Uranium in scleractinian coral skeletons

Coral Reefs, 1982
Accurate determinations have been made of the distribution of uranium in fresh and diagenetically altered coral skeletons occurring both naturally and grown under a variety of experimental conditions. Whereas live coral skeletons are homogeneous in uranium distribution, dead skeletons show heterogeneities relating to lithothamnioid algal encrustations ...
P. K. Swart, J. A. E. B. Hubbard
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Biodiversity of Reef-Building, Scleractinian Corals

2019
Zooxanthellate scleractinian corals are moderately well-known for shallow reef habitats, but not for mesophotic depths (>30 m) that are relatively difficult to access. Mesophotic habitats are light-limited, with different hydrodynamics and sedimentation processes, which result in growth forms that are often difficult to classify using traditional ...
Muir, Paul R., Pichon, Michel
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Patterns of Fluorescent Protein Expression in Scleractinian Corals

The Biological Bulletin, 2008
Biofluorescence exists in only a few classes of organisms, with Anthozoa possessing the majority of species known to express fluorescent proteins. Most species within the Anthozoan subgroup Scleractinia (reef-building corals) not only express green fluorescent proteins, they also localize the proteins in distinct anatomical patterns.We examined the ...
David F, Gruber   +4 more
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Hard Tissue Tumors of Scleractinian Corals

1975
The susceptibility of vertebrates to neoplasia is believed linked to the presence of an immunologic apparatus and a well-developed lymphoid system1. Recent observations on invertebrates have revealed the presence of primitive immunologic mechanisms, beginning with the coelenterates2.
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Skeletal ontogeny in basal scleractinian micrabaciid corals

Journal of Morphology, 2012
AbstractThe skeletal ontogeny of the Micrabaciidae, one of two modern basal scleractinian lineages, is herein reconstructed based on serial micro‐computed tomography sections and scanning electron micrographs. Similar to other scleractinians, skeletal growth of micrabaciids starts from the simultaneous formation of six primary septa.
Katarzyna, Janiszewska   +2 more
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Ocean Acidification and Scleractinian Corals

Science, 2007
In their Brevia “Scleractinian coral species survive and recover from decalcification” (30 March, p. [1811][1]), M. Fine and D. Tchernov present an exciting experimental approach documenting how coral skeletons dissolve as a physiological response to increased atmospheric CO2, a ...
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