Hybrid crown-of-thorns starfish (Acanthaster planci x A. brevispinus) reared to maturity in the laboratory

  title={Hybrid crown-of-thorns starfish (Acanthaster planci x A. brevispinus) reared to maturity in the laboratory},
  author={J. Lucas and M. M. Jones},
THE coral predators Acanthaster planci L. and A. ellisii (Gray) have been the subject of many publications in recent years. But there is another little known Acanthaster species, A. brevispinus Fisher, which was described from two specimens dredged in the Sulu Archipelago, Philippine Islands1. The species has been reported from the Great Barrier Reef region, Queensland2,3 and specimens have been collected recently off Townsville, North Queensland, from sandy substrates and not on coral reef… Expand
Complete mitochondrial genome sequences for Crown-of-thorns starfish Acanthaster planci and Acanthaster brevispinus
Complete mtDNA sequences are useful for the study of phylogeny, larval detection and population genetics, and in the deduced putative amino acid sequences, CO1 is highly conserved, and ATP8 apparently evolves faster any of the other protein-coding genes. Expand
Observations on the settlement of the brachiolaria larvae of Stichaster australis (Verill) and Coscinasterias calamaria (Gray) (Echinodermata: Asteroidea) in the laboratory and on the shore
The settling behaviour and substratum preferences of advances brachiolaria larvae of Stichaster australis and Coscinasterias calamaria were determined with larvae reared in the laboratory and the results correlated with field observations of habitat preferences of juvenile starfish at Maori Bay. Expand
  • M. Barker
  • Biology, Medicine
  • The Biological bulletin
  • 1978
Methods for the laboratory rearing of larvae of the starfishes Stichaster australis and Coscinasterias calamaria are described and the process of metamorphosis is very similar to that of other starfish species with indirect development. Expand
An integrative approach to the taxonomy of the crown-of-thorns starfish species group (Asteroidea: Acanthaster): A review of names and comparison to recent molecular data.
The scientific names and taxonomic concepts for species and subspecies in Acanthaster are compared to recently published, robust COI-barcoding clades and several problems with earlier nomenclatural and bibliographic data are resolved. Expand
Assessment of three mitochondrial loci variability for the crown-of-thorns starfish: a first insight into Acanthaster phylogeography.
Allozymes revealed the low genetic differentiation between A. planci populations in the Indo-Pacific area, and the genus Acanthaster appeared monophyletic, the two species A. brevispinus and A.Planci forming distinct clades in agreement with data from morphology and systematics. Expand
Genetic similarity of outbreak populations of crown-of-thorns starfish (Acanthaster planci) that were 15 years apart in Okinawa, Japan
Allozyme data is used to compare the population genetic structure of A. planci on Okinawa from the 1996 outbreak to two populations from the 1982–83 outbreak, consistent with a common gene pool for outbreak populations. Expand
Persistent Gaps of Knowledge for Naming and Distinguishing Multiple Species of Crown-of-Thorns-Seastar in the Acanthaster planci Species Complex
The differences between COTS species with respect to morphology, ecology, and toxicity are reviewed, and future studies should widen the current biogeographic coverage of the different COTSspecies by strategically sampling neglected areas. Expand
On barriers to hybridization between Strongylocentrotus droebachiensis (O.F. Müller) and S. Pallidus (G.O. Sars)
No strong barrier to genetic exchange has been found in a study in the San Juan Islands, but co-occurrence of embryos of both species in the plankton indicates similar times of spawning. Expand
Quantifying larvae of the coralivorous seastar Acanthaster cf. solaris on the Great Barrier Reef using qPCR
A quantitative polymerase chain reaction (qPCR) assay is described that enables the enumeration of CoTS larvae in field collected plankton samples and will greatly help further studies on understanding CoTS larval ecology and outbreaks. Expand
Genetic differences between geographic populations of the Crown-of-thorns starfish throughout the Pacific region
The lack of unique alleles in these two central and eastern Pacific populations suggests that they were derived from those in the western Pacific, and it is striking that significant allele frequency differences were observed between adjacent populations separated by approximately only 10 km. Expand


Population Explosions of Acanthaster planci and Associated Destruction of the Hard-coral Cover of Reefs of the Great Barrier Reef, Australia
Population explosions of the Crown-of-thorns Starfish, Acanthaster planci, first reported on reefs of the Great Barrier Reef in the Cairns region near lat. 17° S during the early 1960s, have sinceExpand
Changes in Distribution of Acanthaster planci Populations on the Great Barrier Reef
POPULATIONS of the coral predator, Acanthaster planci, are changing their distribution on the Great Barrier Reef. Investigations before late 1969 indicated that it was commonest on reefs between 14°Expand
Spawning pheromone in crown-of-thorns starfish
It is reported that gamete release by one A. planci induces other ripe starfish to spawn; similar behaviour has been observed in certain other echinoderms1,2. Expand
Morphology and Genetics of Sea Urchin Development
Several different approaches to the study of developmental genetics are covered, including hybrids between the sand dollars Dendraster and Encope, and urchins produced by parthenogenetic activation and from reaggregated larval cells. Expand
Acanthaster: Effect on Coral Reef Growth in Panama
Analysis of data on coral abundance and growth, and the population size and feeding rate of Acanthaster indicates that Pocillopora reefs on the Pacific coast of Panama are undergoing vigorous growth in the presence of this predator. Expand
Induction of spawning and oocyte maturation by L-methyl-adenine in starfishes.
  • H. Kanatani
  • Biology, Medicine
  • Experimental cell research
  • 1969
l-Methyladenine brings about spawning as well as oocyte maturation in vitro in starfish, Marthasterias glacialis, Astropecten aurantiacus and Ceramaster placenta and appears to act only on the full-grown oocytes. Expand