Results 121 to 130 of about 41,562 (167)

Heterotrophy in Tropical Scleractinian Corals

Biological Reviews, 2009
AbstractThe dual character of corals, that they are both auto‐ and heterotrophs, was recognized early in the twentieth Century. It is generally accepted that the symbiotic association between corals and their endosymbiotic algae (called zooxanthellae) is fundamental to the development of coral reefs in oligotrophic tropical oceans because zooxanthellae
Christine Ferrier-Pagès, Fanny Houlbrèque   +1 more
exaly   +3 more sources

Morphological plasticity in scleractinian corals

Biological Reviews, 2008
AbstractWhen describing coral shape and form the term phenotypic plasticity, i.e. environment‐induced changes in morphology, is often used synonymously with intraspecific variation. Variation, however, may simply be due to genetic differentiation (polymorphism).
Peter Todd
exaly   +3 more sources

An introduction to lesions and histology of scleractinian corals

Veterinary Pathology, 2023
Stony corals (Scleractinia) are in the Phylum Cnidaria (cnidae referring to various types of stinging cells). They may be solitary or colonial, but all secrete an external, supporting aragonite skeleton. Large, colonial members of this phylum are responsible for the accretion of coral reefs in tropical and subtropical waters that form the foundations ...
Aine Hawthorn, Ilze K. Berzins, Michelle M. Dennis, Matti Kiupel, Alisa L. Newton, Esther C. Peters, Vicente A. Reyes, Thierry M. Work   +7 more
openaire   +2 more sources

Bioactivity of Scleractinian corals

Toxicon, 2015
Three hundred and four scleractinian colonies representing 58 species and 11 families were collected from six intertidal sites at Heron Island Reef, Great Barrier Reef. Tissue obtained from each colony was extracted with water, aqueous ethanol or a methanol-dichloromethane mixture.
Gunthorpe L., Cameron A.M.
openaire   +7 more sources

Intraspecific genetic variability in Scleractinian Corals [PDF]

, 2022
Scleractinian (reef-building) corals are renowned for their broad distributions and intraspecific variability. To date, this variability has been well described only in terms of morphology. This thesis addressed the intraspecific variability of reef­ building corals at several scales ranging from within reef to inter-regional.
openaire   +1 more source

Hormones and reproduction in scleractinian corals

Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2006
Most broadcast spawning scleractinian corals synchronously release gametes during a brief annual spawning period. In southern Taiwan, the mass spawning of scleractinians occurs in lunar mid-March. The exact cues triggering this annual phenomenon remain unclear.
Wen-Hung, Twan, Jiang-Shiou, Hwang, Yan-Horn, Lee, Hua-Fang, Wu, Ying-Hsiu, Tung, Ching-Fong, Chang   +5 more
openaire   +2 more sources

A Cretaceous Scleractinian Coral with a Calcitic Skeleton

Science, 2007
It has been generally thought that scleractinian corals form purely aragonitic skeletons. We show that a well-preserved fossil coral, Coelosmilia sp. from the Upper Cretaceous (about 70 million years ago), has preserved skeletal structural features identical to those observed in present-day scleractinians.
Stolarski, Jaroslaw, Meibom, Anders, Przenioslo, Radoslaw, Mazur, Maciej   +3 more
openaire   +3 more sources

Importance of a micro-diet for scleractinian corals [PDF]

Marine Ecology - Progress Series, 2004
This study investigated the ability of 3 coral species — zooxanthellate (Stylophora pistil- lata and Galaxea fascicularis) and azooxanthellate (Tubastrea aurea )— to feed on pico- and nano- plankton (particles < 100 µm). Coral nubbins were incubated for 6 h in flow chambers containing the planktonic particles (experimental chambers).
Christine Ferrier-Pagès, Eric Tambutté, Fanny Houlbrèque   +2 more
exaly   +2 more sources

Hierarchically structured scleractinian coral biocrystals

Journal of Structural Biology, 2008
Microscopic (AFM and FESEM) observations show that scleractinian coral biomineral fibers in extant Desmophyllum and Favia, and fossil Jurassic Isastrea are composed of nanocrystalline grains of about 30-100 nm in size. In contrast to these findings, SR diffraction data on the same coral materials exhibit narrow Bragg peaks suggesting much larger ...
Radosław, Przeniosło, Jarosław, Stolarski, Maciej, Mazur, Michela, Brunelli   +3 more
openaire   +2 more sources

Immunological specificity and memory in a scleractinian coral

Nature, 1977
Tissue transplantation immunity with a specific memory component is demonstrated in populations of Montipora. This highly discriminating immunoreactivity derives from extensive allogeneic polymorphism of histocompatibility (H) markers. An H system of immunorecognition is postulated to have originated in multicellular invertebrates probably beginning ...
W H, Hildemann, R L, Raison, G, Cheung, C J, Hull, L, Akaka, J, Okamoto   +5 more
openaire   +2 more sources