Comparison of the statolith structures of Chironex fleckeri (Cnidaria, Cubozoa) and Periphylla periphylla (Cnidaria, Scyphozoa): a phylogenetic approach

Sötje, Ilka; Neues, Frank; Epple, Matthias; Ludwig, Wolfgang; Rack, Alexander; Gordon, Matthew; Boese, Roland; Tiemann, Henry

doi:10.1007/s00227-011-1637-3

Cited by 29 publications

(44 citation statements)

References 61 publications

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“…The size, growth, and number of scyphozoan statoliths increase with increasing medusa size (e.g. Holst et al 2007, Sötje et al 2011, indicating the potential of these crystals for medusa age determination, as previously shown for cubozoans (Gordon et al 2004). Moreover, previous investigations on scyphozoan statocysts have revealed taxa-specific differences in the morphology of the statolith arrangement and in statolith shapes.…”

Section: Introductionmentioning

confidence: 78%

“…Scyphozoan and cubozoan statocysts contain statoliths (crystals) composed of calcium sulfate hemihydrate (bassanite) (Becker et al 2005, Sötje et al 2011. Adult cubozoan medusae bear a single statolith in each of 4 statocysts (Sötje et al 2011), where as the statocysts of investigated adult scyphomedu sae contain numerous single statoliths (Holst et al 2007, jellyfish pathways and thus discovery of polyp habitats (Dulière et al 2014, Gambill 2016, which play a key role in determining the timing and intensity of jellyfish blooms (Schiariti et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Adult cubozoan medusae bear a single statolith in each of 4 statocysts (Sötje et al 2011), where as the statocysts of investigated adult scyphomedu sae contain numerous single statoliths (Holst et al 2007, jellyfish pathways and thus discovery of polyp habitats (Dulière et al 2014, Gambill 2016, which play a key role in determining the timing and intensity of jellyfish blooms (Schiariti et al 2015). Scyphozoan statoliths have been described as trigonal-trapezohedral crystals composed of 6 trapezoids (side faces) and 3 pentagons on each side of the rod (head faces) (Sötje et al 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, previous investigations on scyphozoan statocysts have revealed taxa-specific differences in the morphology of the statolith arrangement and in statolith shapes. Thus, statolith analyses may be useful for taxo nomic and phylogenetic studies (Becker et al 2005, Holst et al 2007, Sötje et al 2011. Difficulties in scyphozoan statolith analyses lie in the extremely hygroscopic nature of bassanite, which quickly transforms to dehydrate (gypsum) in contact with moisture (Becker et al 2005, Boßelmann et al 2007).…”

Section: Introductionmentioning

confidence: 99%

“…Difficulties in scyphozoan statolith analyses lie in the extremely hygroscopic nature of bassanite, which quickly transforms to dehydrate (gypsum) in contact with moisture (Becker et al 2005, Boßelmann et al 2007). Because of this and the fragility of the numerous tiny crystals, the few studies conducted on statolith development relating to medusa age are often based on few test animals or a unilateral spectrum of methods (Sötje et al 2011, Hopf & Kingsford 2013.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of investigation techniques for scyphozoan statoliths, with focus on early development of the jellyfish Sanderia malayensis

Heins¹,

Sötje²,

Holst³

2018

Mar. Ecol. Prog. Ser.

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Section: Introductionmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Assessment of investigation techniques for scyphozoan statoliths, with focus on early development of the jellyfish Sanderia malayensis

Heins¹,

Sötje²,

Holst³

2018

Mar. Ecol. Prog. Ser.

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Cnidaria (Coelenterates)

Shostak¹

2021

Encyclopedia of Life Sciences

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The study of cnidarians has contributed to concepts of biodiversity, evolution and development. Aquatic, mostly marine metazoans, cnidarians are distinguished from members of other phyla by the presence of cnidocytes typically on tentacles. A cnidocyte contains a cnidocyst, a subcellular capsule containing an extrusible tubule capable of everting as an arrow‐like cnida functioning primarily in predation and defence. Cnidarians are predominantly tubular polyps or disk‐ to bell‐shaped medusae. Sexual reproduction generally results in solid planula larvae that develop into polyps, while asexual reproduction performed by polyps results in both polyps and medusae. Polyps bud individuals and members of colonies (e.g. corals). Cnidaria is broken into three subphyla: (1) Anthozoa, composed exclusively of polyps, comprises Octocorallia (soft corals) and Hexacorallia (hard corals); (2) Medusozoa contains both polyps and medusae. This subphylum encompasses Staurozoa, Cubozoa, Scyphozoa and Hydrozoa; (3) Endocnidozoa contains highly reduced endoparasites (myxozoans) plus some larger outliers. Key Concepts Cnidarians are aquatic, mostly marine metazoans, once lumped with ctenophores in the phylum Coelenterata. By sorting out many competing phylogenetic claims, taxonomists have brought cnidarian classification to its present level of clarity. Cnidarians are typically in the form of cylindrical polyps or bell‐shaped medusae. The subphylum Anthozoa consists exclusively of polyps; the subphylum Medusozoa has both polyps and medusae and the subphylum Endocnidozoa is epitomised by myxozoa parasites of annelid or bryozoan and fish, Polypodium hydriforme, an oligocellular parasite of sturgeon and paddlefish eggs, and Buddenbrockia plumatellae, a worm‐like parasite of bryozoans. Uniquely, members of the phylum Cnidaria possess cnidocytes (Gr. knī́dē nettle, sea nettle + kyto hollow vessels) aka nematocytes (Gr. nema‐ thread + hollow vessels), an alternative name for cnidocysts (with the exception of spirocytes and ptychocytes). These cells develop from cnidoblasts and produce cnidocysts (aka nematocysts), encapsulated inside‐out tubules that evert to become adhesive, ensnaring, entangling, penetrating, constructing or poisoning darts (cnidae). Cnidocysts are concentrated in the epidermis of tentacles protruding from the oral end of polyps and from the rim of medusae. Cnidocysts also occur elsewhere on the body both externally and internally. Both asexual and sexual reproduction occur among polyps, but sexual reproduction in the Medusozoa is predominantly the function of medusae. Fertilised eggs generally give rise to solid, ciliated planula larvae that grow into polyps. These polyps may subsequently produce medusae asexually, typically by fragmentation (strobilation). The studies of evolution, cladistics and development gained momentum with the advent of molecular biology in the twentieth century, isoelectric focusing and immunological methods, followed by multiple deoxyribonucleic acid ( DNA )‐based approaches; DNA hybridisation; restriction enzyme digestion; random polymerase chain reaction ( PCR ) amplification of ribosomal genes, mitochondrial (mt) small subunit (S) 12S and 16S and large subunit 18S ribosomal ribonucleic acid ( rRNA ) and mitochondrial deoxyribonucleic acid ( mtDNA ); amplification, use of species‐specific PCR primers; DNA sequencing and so on. The application of these methods now dominates cnidarian classification, perspectives on mechanism of development, and cnidarian evolution.

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Quallen an Nord‐ und Ostseeküste

Holst¹

2011

Biologie in unserer Zeit

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Für Schlagzeilen sorgen auch häufiger die sehr giftigen Würfelquallen (Cubozoa), deren Auftreten vor allem an tropischen und subtropischen Küsten, beispielsweise in Australien, tödliche Badeunfälle zur Folge haben kann. Bis auf eine weniger giftige Mittelmeerart (Carybdea marsupialis) sind Würfelquallen in Europa aber nicht verbreitet. Im Fokus dieses Artikels stehen die großen, auffälligen Quallen der Scyphozoa, im Folgenden auch als "Scyphomedusen" bezeichnet, mit ihren erstaunlichen Überlebensstrategien und faszinierenden Eigenschaften und Fähigkeiten. Unterscheidungsmerkmale der Scheibenquallen (Scyphozoa)Fünf

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Comparison of the statolith structures of Chironex fleckeri (Cnidaria, Cubozoa) and Periphylla periphylla (Cnidaria, Scyphozoa): a phylogenetic approach

Cited by 29 publications

References 61 publications

Assessment of investigation techniques for scyphozoan statoliths, with focus on early development of the jellyfish Sanderia malayensis

Assessment of investigation techniques for scyphozoan statoliths, with focus on early development of the jellyfish Sanderia malayensis

Cnidaria (Coelenterates)

Quallen an Nord‐ und Ostseeküste

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