Results 111 to 120 of about 732 (150)

Biochemical stimuli for feeding in Acanthaster planci (L.)

Journal of Experimental Marine Biology and Ecology, 1976
Abstract The typical feeding response of the Crown of Thorns Starfish Acanthaster planci (L.) can be induced by mucoproteins of molecular weight greater than 200,000 daltons found in mucus obtained from corals of the genera Acropora and Fungia .
N.J. Hanscomb, J.P. Bennett, G. Harper
openaire   +1 more source

Spawning observation of Acanthaster planci in the Gulf of Thailand

Marine Biodiversity, 2014
The corallivorous Crown of Thorns starfish, Acanthaster planci, has contributed greatly to the decline of coral coverage in reefs throughout the Indo-Pacific region (reviewed in Pratchett et al. 2014). To date, little information is available on the reproductive timing and controlling factors for A.
C. M. Scott, R. Mehrotra, P. Urgell
openaire   +1 more source

Bias in manta tow surveys of Acanthaster planci

Coral Reefs, 1990
To investigate the biases associated with manta tow surveys of Acanthaster planci, counts obtained by manta-towed observers were compared with counts made on SCUBA swims under a limited range of conditions. Five 10 m wide strip transects on different parts of two reefs and with different densities of A. planci were surveyed.
L. Fernandes, H. Marsh, P. J. Moran, D. Sinclair   +3 more
openaire   +1 more source

Field and Laboratory Observations of the Crown-of-Thorns Starfish, Acanthaster planci: Locomotory Response of Acanthaster planci to Various Species of Coral

Nature, 1970
Field and Laboratory Observations of the Crown-of-Thorns Starfish, Acanthaster planci: Locomotory Response of Acanthaster planci to Various Species of ...
D. J. BARNES, R. W. BRAUER, M. R. JORDAN
openaire   +1 more source

Is Acanthaster planci a near-optimal predator?

Ecological Modelling, 1989
Abstract A two-dimensional model of the population dynamics of the crown of thorns starfish ( Acanthaster planci ) and its coral prey is constructed and analysed. The notion of a suboptimal-superoptimal continuum for the starfish predator is introduced. It is suggested that A. planci is a near-optimal predator on this continuum, and that population
openaire   +1 more source

New Steroidal Glycosides from the Starfish Acanthaster planci

Chemistry of Natural Compounds, 2016
Two new and three known polyhydroxysteroid glycosides were isolated from the MeOH extract of the starfish Acanthaster planci. The structures of the isolated compounds were elucidated using NMR and mass spectrometry. The new glycosides had the same aglycon, (24S)-24-methyl-5α-cholestane-3β,4β,6α,8,15β,16β,28-heptaol, and different carbohydrate fragments,
Ekaterina Lyakhova, Valentin Stonik, Stonik V A   +2 more
exaly   +2 more sources

Identification of 23-demethylacanthasterol in an asteroid, Acanthaster planci and its synthesis

Steroids, 1980
23-Demethylacanthasterol was identified in an asteroid, Acanthaster planci, by GC-MS analysis and direct comparison with the synthetic sample prepared from 23-demethylgorgosterol. The sterol composition of A. planci is also described.
S, Sato, N, Ikekawa, A, Kanazawa, T, Ando   +3 more
openaire   +2 more sources

Toxins from the starfish Acanthaster planci and Asterina pectinifera

Toxicon, 1997
Abstract Stereochemistry and biological activities of the toxins from the starfish Acanthaster planci and Asterina pectinifera have been reviewed.
openaire   +2 more sources

Acansterol: a cyclopropane-containing marine sterol from Acanthaster planci

Journal of the Chemical Society D: Chemical Communications, 1971
From an extract of Acanthaster planci a new cyclopropane-containing sterol has been isolated and its structure elucidated.
Sheikh, Younus Y.M., Djerassi, Carl, Tursch, Bernard   +2 more
openaire   +2 more sources

Triggering of the Stomach Eversion Reflex of Acanthaster planci by Coral Extracts

Nature, 1970
RECENT observations of Acanthaster planci populations in Micronesia suggest that the animal may eat certain corals in preference to others. The starfish feeds by everting its stomach and applying it to the coral surface. Neither the stimuli evoking stomach eversion nor the mechanism by which the stomach is applied to the coral surface has been ...
R W, Brauer, M R, Jordan, D J, Barnes
openaire   +2 more sources