Stable isotope signatures of Middle Palaeozoic ahermatypic
rugose corals--deciphering secondary alteration, vital fractionation effects, and palaeoecological implications.
Chemical defenses against generalist fish predators and fouling organisms in two invasive ahermatypic
corals in the genus Tubastraea.
In contrast, the larvae of the other reef corals, including Goniastrea aspera and Platygyra daedalea, and the ahermatypic
coral Caryophyllia smithii, swim much faster, at about 25, 21, and 90 cm per 30 s, respectively (Tranter et al., 1982; Reichelt-Brushett and Harrison, 2004).
It consists of simple primitive ahermatypic
diaphragmatophoral corals, the so-called Cyathaxonia fauna, and is represented in the sections studied by solitary corals bearing axial structures of different types (Flugel 1972, 1973).
Additionally some experiments in ahermatypic
corals have demonstrated that a competitive dominant may influence the abundance and population structure of a subordinate by reducing its sexual reproductive output, increasing larval mortality and altering recruitment patterns (Chadwick.
All species lack symbiotic algae in their tissues (ahermatypic
) and most are found in deep water below the euphotic zone (Table 4).