Description and life cycle of a new species of the genus Arachnanthus (Cnidaria: Anthozoa: Ceriantharia) from the Southwestern Atlantic Ocean

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dc.contributor.authorLopes, Celine S. S. [UNESP]
dc.contributor.authorScarabino, Fabrizio
dc.contributor.authorCarranza, Alvar
dc.contributor.authorMunoz, Ricardo Gonzalez
dc.contributor.authorMorandini, Andre C.
dc.contributor.authorNagata, Renato Mitsuo
dc.contributor.authorStampar, Sergio Nascimento [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniv Republ
dc.contributor.institutionMuseo Nacl Hist Nat
dc.contributor.institutionUniv Nacl Mar Del Plata
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniv Fed Rio Grande
dc.date.accessioned2023-07-29T12:01:15Z
dc.date.available2023-07-29T12:01:15Z
dc.date.issued2023-05-22
dc.description.abstractBackground. Ceriantharia is a subclass of the phylum Cnidaria, which comprises tubedwelling marine invertebrates. This subclass is composed of three families, including Arachnactidae, with two known genera. Currently, the genus Arachnanthus has five valid species recorded from Australia, the Mediterranean Sea and both the Southern and Northern Pacific Ocean. However, at the moment, there is no record of organisms of this family from the South Atlantic Ocean. Besides that, the life cycle of any species of the genus Arachnanthus is known. The present study describes a new species of the genus Arachnanthus and its life cycle, based on specimens from Uruguay and South of Brazil. Methods. Larvae were collected by plankton net in Rio Grande-Brazil and the development and external morphology of these specimens were observed in the laboratory during two years, and subsequently described. Additionally, nine adult ceriantharians correspondent to the larvae from Rio Grande were collected in Uruguay and their external and internal anatomies, and cnidome were described. Results. Arachnanthus errans sp. nov. exhibited a free-swimming, short-lived cerinula larvae that spent short-time on the plankton. The larva developed into small and translucent polyps with a short actinopharynx, one pair of mesenteries attached to a siphonoglyph, and a medium first pair of metamesenteries. Further, the adult polyp displayed an unprecedented locomotion behavior in Ceriantharia that is first reported here, it can crawl under and in between the sediment.en
dc.description.affiliationUniv Estadual Paulista, Dept Zool, Inst Biociencias, Botucatu, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Fac Ciencias, Dept Ciencias Biol, Bauru, SP, Brazil
dc.description.affiliationUniv Republ, Ctr Univ Reg Este, Maldonado Rocha, Uruguay
dc.description.affiliationMuseo Nacl Hist Nat, Montevideo, Uruguay
dc.description.affiliationUniv Nacl Mar Del Plata, Inst Invest Marinas & Costeras IIMyC, CONICET, Mar Del Plata, Argentina
dc.description.affiliationUniv Nacl Mar Del Plata, Fac Ciencias Exactas & Nat, Mar Del Plata, Argentina
dc.description.affiliationUniv Sao Paulo, Dept Zool, Inst Biociencias, Sao Paulo, Brazil
dc.description.affiliationUniv Sao Paulo, Ctr Biol Marinha, Sao Sebastiao, SP, Brazil
dc.description.affiliationUniv Fed Rio Grande, Inst Oceanog, Rio Grande, RS, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Zool, Inst Biociencias, Botucatu, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciencias, Dept Ciencias Biol, Bauru, SP, Brazil
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoa de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo de Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipBrazilian Long-Term Ecological Research Program (BR-LTER)
dc.description.sponsorshipFundacaeo de Amparo a Pesquisa do Estado do Rio Grande do Sul (FAPERG)
dc.description.sponsorshipIdFAPESP: 2019/03552-0
dc.description.sponsorshipIdCNPq: 301293/2019-8
dc.description.sponsorshipIdBrazilian Long-Term Ecological Research Program (BR-LTER): 441492/2016-9
dc.description.sponsorshipIdBrazilian Long-Term Ecological Research Program (BR-LTER): 442206/2020-8
dc.description.sponsorshipIdFundacaeo de Amparo a Pesquisa do Estado do Rio Grande do Sul (FAPERG): 2551-0000102-2
dc.description.sponsorshipIdFundacaeo de Amparo a Pesquisa do Estado do Rio Grande do Sul (FAPERG): 2551-0000774-5
dc.description.sponsorshipIdCNPq: 400551/2014-4
dc.description.sponsorshipIdCNPq: 309440/2019-0
dc.description.sponsorshipIdCNPq: 438805/2018-6
dc.format.extent28
dc.identifierhttp://dx.doi.org/10.7717/peerj.15290
dc.identifier.citationPeerj. London: Peerj Inc, v. 11, 28 p., 2023.
dc.identifier.doi10.7717/peerj.15290
dc.identifier.issn2167-8359
dc.identifier.urihttp://hdl.handle.net/11449/245656
dc.identifier.wosWOS:000996340500003
dc.language.isoeng
dc.publisherPeerj Inc
dc.relation.ispartofPeerj
dc.sourceWeb of Science
dc.subjectTube-dwelling anemones
dc.subjectTaxonomy
dc.subjectEvolution
dc.subjectLife cycle
dc.subjectTemperate South America
dc.titleDescription and life cycle of a new species of the genus Arachnanthus (Cnidaria: Anthozoa: Ceriantharia) from the Southwestern Atlantic Oceanen
dc.typeArtigo
dcterms.rightsHolderPeerj Inc
unesp.departmentCiências Biológicas - FCpt

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Artigos - Zoologia - IBB
Bauru - FC - Faculdade de Ciências