Juvenile morphology of the ornamental crab Mithraculus forceps A. Milne-Edwards, 1875 (Crustacea, Brachyura)

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dc.contributor.authorGaliotti, Lucas Lopes [UNESP]
dc.contributor.authorAntunes, Mariana [UNESP]
dc.contributor.authorBolla, Eduardo A. [UNESP]
dc.contributor.authorNegreiros-Fransozo, Maria Lucia [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionScience and Technology of São Paulo (IFSP)
dc.date.accessioned2023-07-29T13:28:12Z
dc.date.available2023-07-29T13:28:12Z
dc.date.issued2022-10-21
dc.description.abstractThe morphology of juveniles of Mithraculus forceps A. Milne-Edwards, 1875, raised in the laboratory, is described. The larvae were obtained from ovigerous females collected in the wild, maintained in the rearing system for culture of crabs (400 L). A total of 229 larvae (zoea I), from 7 females were distributed in lots of 20 larvae kept in glass flasks (500 ml), with seawater circulation and temperature and salinity constants, which were checked daily for molts or deaths. After the larvae reached the juvenile stage, exuviae and dead specimens were deposited in a scientific collection. We analyzed the external morphology (N = 10 ind.) of each size class (total = 8). We determined the number of size classes, based on carapace width CW vs. carapace length CL (mm) and its dispersion points, in which we can observe non-hierarchical groupings with no size classes overlapping. We analyzed the relative growth of the juveniles using the technique “Standard Major Axis’’ (Type II regression). The relationships CW vs. CL and CW vs. AW showed negative allometry (b < 1; p < 0.05). The relationships CW vs. CPH and CW vs. CPL are isometric (b = 1; p > 0.05). The most remarkable morphological characters of the juveniles (first size class) are the following: spines at the anterior margin of the carapace, inner marginal teeth in the propodus and dactylus of the chelipeds, number of articles in the antennular endopod and the maxillular endopod, absence of setae on the maxillar endopod, and absence of rudimentary pleopods.en
dc.description.affiliationNEBECC Study Group on Crustacean Biology Ecology and Culture Master Science Program of Zoology Institute of Biosciences University of the State of São Paulo (UNESP), Campus of Botucatu, State of São Paulo
dc.description.affiliationFederal Institute of Education Science and Technology of São Paulo (IFSP), Campus of Avaré, State of São Paulo
dc.description.affiliationUnespNEBECC Study Group on Crustacean Biology Ecology and Culture Master Science Program of Zoology Institute of Biosciences University of the State of São Paulo (UNESP), Campus of Botucatu, State of São Paulo
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipLoma Linda University
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdCNPq: #481435/2011-5
dc.description.sponsorshipIdCNPq: #486337/2013-8
dc.format.extent567-587
dc.identifierhttp://dx.doi.org/10.11646/zootaxa.5196.4.6
dc.identifier.citationZootaxa, v. 5196, n. 4, p. 567-587, 2022.
dc.identifier.doi10.11646/zootaxa.5196.4.6
dc.identifier.issn1175-5334
dc.identifier.issn1175-5326
dc.identifier.scopus2-s2.0-85141792163
dc.identifier.urihttp://hdl.handle.net/11449/247872
dc.language.isoeng
dc.relation.ispartofZootaxa
dc.sourceScopus
dc.subjectcrabs
dc.subjectculture
dc.subjectdevelopment
dc.subjectjuveniles
dc.subjectMithracidae
dc.titleJuvenile morphology of the ornamental crab Mithraculus forceps A. Milne-Edwards, 1875 (Crustacea, Brachyura)en
dc.typeArtigo
unesp.author.orcid0000-0001-7609-7302[1]
unesp.author.orcid0000-0002-7036-215X[2]
unesp.author.orcid0000-0002-0493-5095 0000-0002-0493-5095[3]
unesp.author.orcid0000-0002-8070-8089[4]

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