Tube microstructure and formation in some feather duster worms (Polychaeta, Sabellidae)

Vinn, Olev; Zatoń, Michał; Tovar‐Hernández, María Ana

doi:10.1007/s00227-018-3357-4

Cited by 8 publications

(4 citation statements)

References 27 publications

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“…The tube ultrastructure of A. orstedii has a regular plywood microstructure which is lamellar in cross-section ( Vinn et al 2018 ), whereas the tube wall of Perkinsiana anodina is dense, non porous, with sparsely spaced three different sets of fibres ( Tovar-Hernández et al 2020 ). This indicates that inhabiting with coral has had no effect on the tube microstructure of the species, possibly because P. anodina did not communicate with the host coral through its tube wall.…”

Section: Taxon Treatmentsmentioning

confidence: 99%

Sclerozoan and fouling sabellid worms (Annelida: Sabellidae) from Mexico with the establishment of two new species

Tovar‐Hernández¹,

García-Garza²,

León-González³

2020

BDJ

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908

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The sabellid genera Anamobaea Krøyer, 1856 and Notaulax Tauber, 1879 are two of the most attractive polychaete worms in coral reefs. Anamobaea is represented by two Caribbean species and Notaulax with 24 species from around the world, six of them previously known to tropical America. During examination of fouling biota and sclerozoans from Mexico, Anamobaea orstedii Krøyer, 1856 was found in coral reefs from the southern Gulf of Mexico and three species of Notaulax were identified to the Mexican Pacific, two of them being new species to science. Anamobaea orstedii Krøyer, 1856 is first reported as sclerozoan of dead coral from the southern Gulf of Mexico. An amendment to the generic diagnosis of Anamobaea is provided, based on the presence of a higher number of skeletal cells than previously recorded; height, shape and exposition of the anterior peristomial ring; the non-fusion of dorsal collar margins to faecal groove; shape of collar chaetiger and abdominal chaetae and distribution and shape of radiolar ocelli. Notaulax californica (Treadwell, 1906) is reported as fouling in buoys and docks from the Gulf of California. Two new species of Notaulax are described: the former was found in hull and dock fouling from La Paz (Gulf of California) and the second one as sclerozoan of oysters from a dock fouling in Acapulco (south Mexican Pacific). In addition, reproductive features are described for the first time for A. orstedii which is a simultaneous hermaphrodite with female and males gametes found within the same segments of abdominal region. Oocytes develop synchronously and sperm morphology (spherical nucleus and rounded acrosome, four spherical mitochondria and a long free flagellum) suggest an adaptation to broadcast spawning and external fertilisation. Species of Notaulax here examined were gonochoric, with gametes distributed in abdominal segments.

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Section: Taxon Treatmentsmentioning

confidence: 99%

Sclerozoan and fouling sabellid worms (Annelida: Sabellidae) from Mexico with the establishment of two new species

Tovar‐Hernández¹,

García-Garza²,

León-González³

2020

BDJ

Self Cite

908

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“…Notaulax tenuitorques was reported as Potamilla by Ehlers (1920) from Amboina (from the context of his introduction this can be narrowed down to present day Ambon). The tube microstructure of N. tenuitorques was described by Vinn, Zatoń & Tovar-Hernández (2018) , and consists of an irregular mesh of thin, long and curved fibers with a chaotic orientation.…”

Section: Systematicsmentioning

confidence: 99%

Fan worms (Annelida: Sabellidae) from Indonesia collected by the Snellius II Expedition (1984) with descriptions of three new species and tube microstructure

Tovar‐Hernández

Hove

Vinn

et al. 2020

PeerJ

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The Indonesian archipelago is one of the most diverse regions in the marine World. Many contributions on polychaete worms have been published since the Dutch Siboga Expedition to the Indonesian archipelago at the end of the 19th century. In this study, we examined specimens of Sabellidae Latreille, 1825 collected during the Snellius II Expedition (1984) to Indonesia, carried out by the Dutch Research Vessel (RV) “Tyro” and the Indonesian RV “Samudera”. The results include reports of Acromegalomma acrophthalmos, A. interruptum, A. sp., Bispira manicata, B. porifera, B. secusoluta, Branchiomma boholense, Notaulax pyrrohogaster, N. tenuitorques, N. sp. 3, Parasabella crassichaetae, Perkinsiana anodina, and Sabellastarte spectabilis. In addition, three new species are described: Acromegalomma sumbense sp. nov., Claviramus olivager sp. nov., and Notaulax montiporicola sp. nov., the latter in living coral (Montipora nodosa). Further, Sabella (Potamilla) polyophthalmos Grube is transferred to Pseudopotamilla. Additional histological accounts of B. porifera and tube microstructure of A. acrophthalmos, B. porifera, P. anodina, Pseudopotamilla polyophthalmos and Sabellastarte spectabilis are also included.

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“…For instance, fan worms (Annelida: Sabellidae), which currently include about 400 described species from marine habitats worldwide, are capable of secreting mucus to cover the surface of their body, forming parchment-like tubes that can be deployed in a defensive role (Avitzur, 1990;Bonar, 1972;Giangrande et al, 2014;Gosline and DeMont, 1985). The fan worm has an inverted umbrella-like crown with over 40 radiolar tentacles, which is usually extended into the water column beyond the protective tubes for feeding and respiration (Dales, 1957;Vinn et al, 2018). These radiolar tentacles possess compound eyes and other photoreceptors, serving as an alarm system for encroaching threats, which can elicit a fast defensive response in which all the tentacles are entirely retracted into the tube with the full contraction of the worm body (Movie 1) Bok et al, 2017a).…”

Section: Introductionmentioning

confidence: 99%

Rapid manoeuvre of fan worms (Annelida: Sabellidae) through tubes

Jiang¹,

Sun²,

Wu³

et al. 2023

Journal of Experimental Biology

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Multiple variables determine the success of an escape response of an animal, and the rapidity of the escape manoeuvre is often the most important. Fan worms (Annelida: Sabellidae) can rapidly withdraw their tentacles, which are covered in heavily ciliated ramifications called pinnules, into their tubes to protect them from approaching threats. Here, we explore the dynamic and mechanistic features behind this escape manoeuvre. The escape responses of fan worms were recorded by high-speed videography and quantified by computerized motion analysis, showing an ultrahigh retraction speed of 272±135 mm/s (8±4 body lengths/s). We found that fan worms possess powerful muscle-driven systems, which can generate contractive forces up to 36 times their bodyweights. In order to achieve these rapid, forceful movements through seawater without damaging their tentacles, fan worms have developed functional morphological adaptations to reduce fluidic drag, including the flattening of their radiolar pinnules and the deformation of bodily segmental ridges. Our hydrodynamic models indicate that these mechanical processes can decrease fluidic drag by 47%, trapped mass by 75%, and friction coefficient by 89%, respectively. These strategies allow fan worms to execute rapid escape responses and could inspire the design of fast in-pipe robots.

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Tube microstructure and formation in some feather duster worms (Polychaeta, Sabellidae)

Cited by 8 publications

References 27 publications

Sclerozoan and fouling sabellid worms (Annelida: Sabellidae) from Mexico with the establishment of two new species

Sclerozoan and fouling sabellid worms (Annelida: Sabellidae) from Mexico with the establishment of two new species

Fan worms (Annelida: Sabellidae) from Indonesia collected by the Snellius II Expedition (1984) with descriptions of three new species and tube microstructure

Rapid manoeuvre of fan worms (Annelida: Sabellidae) through tubes

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